Steering Wheel and Steering Column Buick Century VI

Fastener Tightening Specifications

Fastener Tightening Specifications

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Symptoms - Steering Wheel and Column

Review the system description and operation in order to familiarize yourself with the system functions. Refer to STEERING WHEEL AND COLUMN DESCRIPTION AND OPERATION .

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the steering wheel and column.
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Symptoms List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «LOCK SYSTEM DOES NOT UNLOCK»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)
2. «LOCK SYSTEM DOES NOT LOCK»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)
3. «LOCK SYSTEM STICKS IN START»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)
4. «KEY CANNOT BE REMOVED IN THE OFF LOCK POSITION»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)
5. «HIGH LOCK EFFORT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)
6. «NOISE IN STEERING COLUMN»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)
7. «LOOSENESS IN STEERING COLUMN»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)
8. «STEERING COLUMN TILT FUNCTION INOPERATIVE»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)
9. «IGNITION CAN/CANNOT BE TURNED OFF WITH TRANSMISSION IN ANY GEAR»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column)

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1. Turn the ignition OFF and remove the key from the ignition lock cylinder in order to lock the steering column.
2. Remove the intermediate shaft seal from the steering column.
3. Disconnect the intermediate shaft from the steering column. Refer to «INTERMEDIATE STEERING SHAFT REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
4. Push the intermediate shaft down in order to collapse the intermediate shaft.
5. Remove the intermediate shaft seal bolts. IMPORTANT: It may be necessary to remove the lower portion of the intermediate shaft seal from the steering gear.
6. Remove the intermediate shaft seal.

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1. Install the intermediate shaft lower seal over the intermediate shaft and to the steering gear.
2. Install the intermediate shaft upper seal over the lower seal and to the instrument panel.
3. Connect the intermediate shaft to the steering column. Refer to «INTERMEDIATE STEERING SHAFT REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
4. Install the intermediate shaft seal to the steering column. NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices.
5. Install the intermediate shaft seal bolts. Tighten Tighten the intermediate shaft seal bolts to 3 N.m (27 lb in).

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1. Raise and support the vehicle. Refer to «LIFTING AND JACKING THE VEHICLE»(/buick/century/vi-1997-2005/remont/hoistjack/#jacking-and-lifting__lifting-and-jacking-the-vehicle) in General Information.
2. Position the seal in order to provide access to the lower pinch bolt on the intermediate steering shaft.
3. Remove the lower pinch bolt from the power steering gear stub shaft (2). NOTE: The front wheels of the vehicle must be maintained in the straight ahead position and the steering column must be in the LOCK position before disconnecting the steering column or intermediate shaft. Failure to follow these procedures will cause improper alignment of some components during installation and result in damage to the SIR coil assembly.
4. Remove the intermediate steering shaft (1) from the power steering gear stub shaft (2).
5. Lower the vehicle.
6. Remove the left instrument panel insulator. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - LEFT in Instrument Panel, Gages and Console.
7. Reposition the seal in order to gain access to the upper pinch bolt of the intermediate steering shaft.
8. Remove the upper pinch bolt from the intermediate steering shaft.
9. Disconnect the intermediate steering shaft from the steering column.
10. Remove the intermediate steering shaft from the vehicle.

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1. Position the intermediate steering shaft into place. NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions Notices.
2. Install the upper pinch bolt to the intermediate steering shaft at the steering column. Tighten Tighten the pinch bolt to 48 N.m (35 lb ft).
3. Install the intermediate steering shaft seal onto the steering column.
4. Install the left instrument panel insulator. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - LEFT in Instrument Panel, Gages and Console.
5. Raise and support the vehicle. Refer to «LIFTING AND JACKING THE VEHICLE»(/buick/century/vi-1997-2005/remont/hoistjack/#jacking-and-lifting__lifting-and-jacking-the-vehicle) in General Information.
6. Install the intermediate steering shaft (1) to the power steering gear stub shaft (2).
7. Install the lower pinch bolt to the intermediate steering shaft at the power steering gear stub shaft. Tighten Tighten the pinch bolt to 48 N.m (35 lb ft).
8. Install the intermediate steering shaft seal onto the power steering gear.
9. Lower the vehicle.

Steering Column Accident Damage Inspection

Note. Vehicles involved in accidents that result in any of the following kinds of damage or situations, may also have a damaged or misaligned steering column: Frame damage Major body damage Sheet metal damage If the steering column has been impacted If the supplemental inflatable restraints system was deployed Inspect the capsules on the steering column bracket assembly. All capsules must be securely seated in the bracket slots and inspected for any loose conditions when pushed or pulled by hand. Observe how the bracket is attached to the jacket assembly. If the capsules are not securely seated and the bracket is bolted to the jacket assembly, replace only the bracket. If the capsules are not securely seated and the bracket is welded to the jacket assembly, replace only the jacket assembly. Inspect for jacket assembly collapse by measuring the distance from the lower edge of the upper jacket to a defined point on the lower jacket. Replace the jacket assembly if the measured dimensions are not within specifications. Visually inspect the steering shaft for sheared injected plastic. If the steering shaft shows sheared plastic, replace the steering shaft. Any frame damage that could cause a bent steering shaft must have the steering shaft runout checked. Using a dial indicator (1) at the lower end of the steering shaft, rotate the steering wheel. The runout must not exceed 1.60 mm (0.06 in).

Removal Procedure

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1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Remove the steering wheel from the steering column. Refer to «STEERING WHEEL REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-wheel-replacement) .
3. Remove the tilt lever assembly. Refer to «TILT LEVER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
4. Remove the 2 pan head tapping screws (2) from the lower trim cover (1).
5. Remove the lower trim cover (1).
6. Remove the TORX® head screw (1) from the upper trim cover (2).
7. Remove the upper trim cover (2).
8. If necessary, remove the trim cover protector (1) from the lower trim cover (2).
9. Remove the shift lever. Refer to «SHIFT LEVER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .

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1. If necessary, install the trim cover protector (1) to the lower trim cover (2).
2. Install the shift lever. Refer to «SHIFT LEVER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) . NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices.
3. Install the upper trim cover (2) and secure by using the TORX® head screw (1). Tighten Tighten the screw to 1.5 N.m (13 lb in).
4. Install the lower trim cover (1) and secure by using 2 pan head tapping screws (2). Tighten Tighten the screws to 3.5 N.m (31 lb in).
5. Install the tilt lever assembly. Refer to «TILT LEVER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
6. Install the steering wheel onto the column. Refer to «STEERING WHEEL REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-wheel-replacement) .
7. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

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1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Remove the trim covers from the steering column. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
3. Disconnect the steering column electrical connectors.
4. Remove the steering column wiring harness tie straps (3).
5. Remove the wire harness (1) from the steering column and from the wire harness strap (2).
6. Remove and dispose of the small wire harness straps from the wire harness straps from the wire harness assembly (1).
7. Disconnect the multifunction switch electrical connectors (2) from the bulkhead connector (1).
8. Remove the key alarm connector (1) from the ignition lock cylinder case assembly (2) using the following procedure: 8.1. Rotate the key alarm connector (1) 90 degrees. 8.2. Pull the key alarm connector (1) out of the ignition lock cylinder case assembly (2). 8.3. Remove the passkey connector from the ignition lock cylinder case assembly (2).
9. Slide the ignition switch assembly (3) out of the ignition lock cylinder case assembly (1).

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1. Slide the ignition switch assembly (3) into the ignition lock cylinder case assembly (1).
2. Install the key alarm connector (1) into the ignition lock cylinder case assembly (2). 2.1. Push the key alarm connector (1) into the ignition lock cylinder case assembly (2). 2.2. Rotate the key alarm connector (1) 90 degrees so that the key alarm connector (1) locks into place. 2.3. Install the passkey connector into the ignition lock cylinder case assembly (2).
3. Connect the multifunction switch electrical connectors to the bulkhead connector (1).
4. Install the wire harness assembly (1) to the wire harness strap (2).
5. Attach new wire harness straps (3) to the wire harness assembly (4).
6. Connect the steering column electrical connectors to the vehicle.
7. Install the trim covers to the column. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
8. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

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1. Disconnect the battery negative cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery. CAUTION: Refer to «SIR CAUTION»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__sir-caution) in Cautions and Notices
2. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
3. Remove the steering column trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
4. Turn the ignition lock cylinder to the start position.
5. Insert the tip of an awl into the access hole (1) of the ignition lock cylinder.
6. Push down and hold the retaining pin of the ignition lock cylinder.
7. Release the ignition lock cylinder to the run position.
8. Remove the ignition lock cylinder by pulling the cylinder away from the steering column.

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1. Install the ignition lock cylinder by performing the following procedure: 1.1. Align the positioning locking tab slot on the lock module to the positioning tab on the ignition lock cylinder. 1.2. Push the lock cylinder in until the tab locks in the lock module.
2. Install the steering column trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
3. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
4. Connect the battery negative cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery.
5. Perform the Passlock learn procedure. Refer to PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS in Theft Deterrent.

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1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Remove the steering wheel from the steering column. Refer to «STEERING WHEEL REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-wheel-replacement) .
3. Remove the steering column cylinder set from the steering column lock. Refer to «IGNITION LOCK CYLINDER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
4. Remove the turn signal cancel cam. Refer to «TURN SIGNAL CANCEL CAM AND UPPER BEARING THRUST WASHER»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__turn-signal-cancel-cam-and-upper) .
5. Remove the connector (2) from the steering wheel theft deterrent lock (3).
6. Remove the TORX® head screw (1) from the steering wheel theft deterrent lock (3).
7. Remove the steering wheel theft deterrent lock (2) from the ignition lock cylinder case assembly (1).
8. Remove the key alarm connector (1) from the ignition lock cylinder case assembly (2) by doing the following: 8.1. Rotate the key alarm connector (1) 90 degrees. 8.2. Pull the key alarm connector (1) out of the ignition lock cylinder case assembly (2).
9. Remove the 2 tapping screws (2) from the ignition switch (1). Let the switch assembly (1) hang freely. IMPORTANT: The lock bolt assembly (4) is under slight spring tension from the lock bolt spring (3). Hold the lock bolt (4) in place while removing the ignition lock cylinder case assembly (2).
10. Remove the 3 pan head tapping screws (1) from the ignition lock cylinder case assembly (2).
11. Remove the ignition lock cylinder case assembly (2) from the steering column tilt head assembly (5).
12. Remove the lock bolt assembly (4) from the steering column tilt head assembly (5).
13. Remove the lock bolt spring (3) from the lock bolt assembly (4).

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1. Install the lock bolt spring (3) into the steering column tilt head assembly (5).
2. Position the cutout in the lock bolt assembly (4) at the 6 o'clock position.
3. Install the lock bolt assembly (4) into the steering column tilt head assembly (5).
4. Push the lock bolt assembly (4) into the steering column tilt head assembly (5) until the lock bolt assembly (4) is flush with the steering column tilt head assembly (5).
5. Align the ignition lock cylinder case assembly (2) with the steering column tilt head assembly (5). NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices.
6. Screw the 3 pan head tapping screws (1) into the ignition lock cylinder case assembly (2). Tighten Tighten the screws to 7 N.m (62 lb in).
7. Install the ignition switch (1) onto the ignition lock cylinder case assembly.
8. Screw the 2 tapping screws (2) into the ignition switch (1). Tighten Tighten the screws to 1.5 N.m (13 lb in).
9. Install the steering wheel theft deterrent lock (2) onto the ignition lock cylinder case assembly (1).
10. Screw the TORX® head screw (1) into the steering wheel theft deterrent lock (3). Tighten Tighten the screw to 1.5 N.m (13 lb in).
11. Reconnect the connector (2) to the steering wheel theft deterrent lock (3).
12. Install the key alarm connector (1) onto the ignition lock cylinder case assembly (2) by doing the following: 12.1. Push the key alarm connector (1) into the ignition lock cylinder case assembly (2). 12.2. Rotate the key alarm connector (1) 90 degrees so that the key alarm connector locks into place. 12.3. Install the steering column lock cylinder set only. Refer to «IGNITION LOCK CYLINDER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) . 12.4. Install the turn signal cancel cam. Refer to «TURN SIGNAL CANCEL CAM AND UPPER BEARING THRUST WASHER»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__turn-signal-cancel-cam-and-upper) . 12.5. Install the steering wheel from the steering column. Refer to «STEERING WHEEL REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-wheel-replacement) . 12.6. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

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1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Remove the steering wheel from the steering column. Refer to «STEERING WHEEL REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-wheel-replacement) .
3. Remove the turn signal cancel cam. Refer to «TURN SIGNAL CANCEL CAM AND UPPER BEARING THRUST WASHER»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__turn-signal-cancel-cam-and-upper)
4. Remove the ignition lock cylinder. Refer to «IGNITION LOCK CYLINDER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
5. Remove the ignition switch only. Refer to «IGNITION SWITCH REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
6. Remove the park lock cable assembly (1) from the ignition lock cylinder case. 6.1. Place the steering column lock cylinder set into the OFF position. 6.2. Place the shift lever clevis into the PARK position. 6.3. Use a small blade to push against the locking tab on the end of the park lock cable assembly (1). 6.4. Disconnect the park lock cable assembly (1) from the ignition lock cylinder case.
7. Remove the 3 pan head tapping screws (1) from the ignition lock cylinder case (2). IMPORTANT: The lock bolt assembly (4) is under slight spring tension from the lock bolt spring (3). Hold the lock bolt (4) in place while removing the ignition lock cylinder case (2).
8. Remove the ignition lock cylinder case (2) and the lock bolt assembly (4) from the steering column tilt head assembly (5).
9. Remove the lock bolt spring (3) from the lock bolt assembly (4).

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1. Install the lock bolt spring (3) into the steering column tilt head assembly (5).
2. Position the cutout in the lock bolt assembly (4) at the 6 o'clock position.
3. Install the lock bolt assembly (4) into the steering column tilt head assembly (5).
4. Push the lock bolt assembly (4) into the steering column tilt head assembly (5) until the lock bolt assembly is flush with the steering column tilt head assembly (5).
5. Align the ignition lock cylinder case (2) with the steering column tilt head assembly (5). NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices.
6. Screw the 3 pan head tapping screws (1) into the ignition lock cylinder case (2). Tighten Tighten the screws to 7 N.m (62 lb in). CAUTION: Refer to «SIR INFLATOR MODULE COIL CAUTION»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__sir-inflator-module-coil-caution) in Cautions and Notices.
7. Place steering column lock cylinder set into the OFF position.
8. Place the shift lever clevis into the PARK position.
9. Press the locking tab on the end of the park lock cable assembly (1) into the slot in the ignition lock cylinder case.
10. Install the ignition switch only. Refer to «IGNITION SWITCH REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
11. Install the ignition lock cylinder. Refer to «IGNITION LOCK CYLINDER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
12. Install the turn signal cancel cam. Refer to «TURN SIGNAL CANCEL CAM AND UPPER BEARING THRUST WASHER»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__turn-signal-cancel-cam-and-upper) .
13. Install the steering wheel to the steering column. Refer to «STEERING WHEEL REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-wheel-replacement) .
14. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

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1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Remove the upper and lower trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) . IMPORTANT: The abrasion sleeve located on the steering column wire harness assembly must be reinstalled. Make note of what connector is coming out of the abrasion sleeve for installation purposes.
3. Remove the wire harness assembly (1) from the wire harness strap (2).
4. Disconnect the turn signal and multifunction switch assembly connector from the SIR system coil connector.
5. Slide the 2 connectors (2) of the turn signal and multifunction switch assembly out of the bulkhead connector (1).
6. Remove the 2 pan head tapping screws (1) and (3) from the turn signal and multifunction switch assembly (2).
7. Remove the turn signal and multifunction switch assembly (2) from the steering column tilt head assembly.

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1. Install the turn signal and multifunction switch assembly (2) onto the steering column tilt head assembly. NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices. IMPORTANT: Be sure that the electrical contact of the turn signal and multifunction switch assembly (2) rests on the turn signal cancel cam assembly.
2. Screw the 2 pan head tapping screws (1) and (3) into the turn signal and multifunction assembly (2). Tighten Tighten the top pan head tapping screw (1) to 3 N.m (30 lb in). Tighten the side pan head tapping screw (3) to 7 N.m (62 lb in).
3. Slide the 2 connectors (2) of the turn signal and multifunction switch assembly into the bulkhead connector (1).
4. Connect the turn signal and multifunction switch assembly connector to the SIR coil connector. IMPORTANT: The abrasion sleeve must be installed back onto the steering column wire harness assembly. The ignition lock cylinder case wires and connector must be hanging out of the middle of the abrasion sleeve.
5. Install the wire harness assembly (1) into the wire harness strap (2).
6. Install the upper and lower trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
7. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

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1. Remove the steering column trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
2. Rollback the shift lever boot.
3. Remove the shift lever screw (3).
4. Remove the shift lever assembly (4).
5. Remove the shift lever seal (2) from the shift lever assembly (4).

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1. Install the shift lever seal (2) onto the shift lever assembly (4). NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices.
2. Install the shift lever assembly (4) and secure it with the shift lever screw (3). Tighten Tighten the screw to 20 N.m (15 lb ft). IMPORTANT: The shift lever boot must be seated inside the trim covers.
3. Slide the shift lever boot into the trim covers.
4. Install the steering column trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .

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1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Remove the upper and lower trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
3. Remove the shift lever assembly. Refer to «SHIFT LEVER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
4. With a screwdriver carefully pry the automatic transmission shift lock control away from the steering column jacket.
5. The lock cylinder should be in the OFF-LOCK position. IMPORTANT: Do not remove the tape on the park lock cable. If so, the linear shift assembly must be replaced.
6. Insert a small screwdriver into the slot on the ignition lock cylinder case and push against the locking tab to remove the park lock cable assembly (1).
7. Remove the 3 flat head 6-lobed socket tap screws from the linear shift assembly.
8. Remove the linear shift assembly.

Installation Procedure

Note. Refer to FASTENER NOTICE in Cautions and Notices.

Scheme 73

Scheme 74

Scheme 75

Scheme 76

1. Install the linear shift assembly and secure by using 3 flat head 6-lobed socket tap screws. The linear shift assembly must be out of the PARK position to install the lower socket tap screw. Tighten Tighten the screws to 10 N.m (89 lb in).
2. Connect the park lock cable assembly (1) into the ignition lock cylinder case. The lock cylinder should be in the OFF-LOCK position. The locking tab at the end of the park lock cable assembly (1) must be installed into the ignition lock cylinder case.
3. Install the automatic transmission shift lock control. Install the gear shift lever and put the column in the NEUTRAL position.
4. Adjust the automatic transmission shift lock control. 4.1. Pull the tab (1) out on the block side (2) of the automatic transmission shift lock control. 4.2. Press on the adjuster block (2) to compress the internal adjuster spring to disengage the adjuster teeth. Slide the adjuster block as far away from the solenoid as possible. 4.3. Lock in place by pushing the tab (1) back in.
5. Inspect the automatic transmission shift lock control. 5.1. The automatic transmission shift lock control must lock the gear shift lever when it is put into the PARK position. 5.2. When the column is installed in the vehicle you will not be able to shift the gear shift lever out of the PARK position without pressing on the brake pedal. The solenoid will be energized. 5.3. Readjust if needed.
6. Install the shift lever assembly. Refer to «SHIFT LEVER REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
7. Install the upper and lower trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
8. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

Pull the tilt lever out from the steering column.

Scheme 77

Push the tilt lever into the tilt lever shaft.

Scheme 78

Scheme 79

Scheme 80

1. Remove the steering wheel control switches using a small flat bladed tool.
2. Disconnect the electrical connectors.

Scheme 81

Scheme 82

Scheme 83

1. Connect the electrical connectors.
2. Position the steering wheel control switches to the steering wheel.
3. Install the steering wheel control switches by pressing into place until fully seated.

Steering Wheel Replacement

Tools Required

1. J 1859-A Steering Wheel Puller. See «Special Tools and Equipment»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
2. J 42578 Steering Wheel Puller Legs. See «Special Tools and Equipment»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .

Scheme 84

Scheme 85

1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Turn OFF the ignition.
3. Remove the Inflatable restraint steering wheel module. Refer to «REMOVAL & INSTALLATION (DRIVER-SIDE)»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__removal-installation-driver-side) in Air Bag Restraint Systems.
4. Scribe an alignment mark on the steering wheel hub. Align the mark with the slash mark on the steering shaft.
5. Loosen the steering wheel nut.
6. Position the steering wheel nut flush with the end of the steering shaft.
7. Assemble J 1859-A with J 42578 on the steering wheel.
8. Use J 1859-A with J 42578 in order to unseat the steering wheel from the steering shaft.
9. Remove J 1859-A and J 42578 from the steering wheel.
10. Remove the steering shaft nut.
11. Remove the steering wheel from the steering shaft.
12. Remove the SIR connector from the steering wheel.

Scheme 86

1. Route the SIR connector through the steering wheel.
2. Align the scribe mark on the steering wheel with the slash mark on the steering shaft. NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices.
3. Install the steering shaft nut. Tighten Tighten the nut to 45 N.m (33 lb ft).
4. Install the Inflatable restraint steering wheel module. Refer to «REMOVAL & INSTALLATION (DRIVER-SIDE)»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__removal-installation-driver-side) in Air Bag Restraint Systems.
5. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
6. Inspect the operation of the following components: The horn The steering wheel The steering wheel controls

Scheme 87

Scheme 88

1. Remove the trim covers from the steering column. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
2. Disconnect the electrical connector (2) from the steering wheel theft deterrent lock (3).
3. Remove the screw (1) from the steering wheel theft deterrent lock (3).
4. Using a flat tipped screwdriver, push the tab in on the steering wheel theft deterrent lock (2) and pull to remove it from the steering column (1).

Scheme 89

Scheme 90

1. Install the steering wheel theft deterrent lock (2) to the steering column (1).
2. Install the screw (1) to the steering wheel theft deterrent lock (3).
3. Connect the electrical connector (2) to the steering wheel theft deterrent lock (3).
4. Install the trim covers to the steering column. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
5. Check the operation of the steering wheel theft deterrent lock (3).

Scheme 91

Scheme 92

Scheme 93

1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Remove the upper and lower trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
3. Install the tilt lever onto the steering column tilt head assembly.
4. Use the tilt lever to tilt the column to the UP position. CAUTION: The tilt spring and the spring guide are under pressure. The tilt spring and the spring guide may become a projectile. Secure the spring with locking pliers during removal. Secure the spring with locking pliers during installation. Bodily injury may result during removal and installation of the tilt spring and the spring guide. Always use caution during removal and installation of the tilt spring and the spring guide.
5. Remove the tilt spring (1) from the steering column support assembly (2) and from the steering column tilt head assembly (3) by using the following procedure: 5.1. Pry up the tilt spring (1) until a bulge occurs and most of the tilt spring tension is removed. 5.2. Secure the tilt spring (1) with locking pliers. 5.3. Continue prying up the tilt spring (1) until the tilt spring disengages from the post on the steering column support assembly (2) and from the steering column tilt head assembly (3).
6. Remove the spring guide (1) from the tilt spring (2).

Scheme 94

Scheme 95

Scheme 96

1. Use the tilt lever to tilt the column to the UP position.
2. Install the spring guide into the tilt spring. CAUTION: The tilt spring and the spring guide are under pressure. The tilt spring and the spring guide may become a projectile. Secure the spring with locking pliers during removal. Secure the spring with locking pliers during installation. Bodily injury may result during removal and installation of the tilt spring and the spring guide. Always use caution during removal and installation of the tilt spring and the spring guide.
3. Install the tilt spring (1) onto the steering column support assembly (2) and onto the steering column tilt head assembly by using the following procedure: 3.1. Install the tilt spring (1) onto the steering column tilt head assembly. 3.2. Install the tilt spring (1) onto the post on the steering column support assembly (2).
4. Install the upper and lower trim covers. Refer to «STEERING COLUMN TRIM COVERS REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
5. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

Scheme 97

1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Remove the turn signal cancel cam assembly. Refer to «TURN SIGNAL CANCEL CAM AND UPPER BEARING THRUST WASHER»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__turn-signal-cancel-cam-and-upper) .
3. Remove the turn signal and multifunction switch assembly only. Refer to «MULTIFUNCTION, TURN SIGNAL SWITCH REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
4. Slide the turn signal switch housing off of the steering column shaft assembly.
5. Remove the tilt head housing and steering shaft as an assembly. Refer to «STEERING SHAFT, LOWER BEARING, AND JACKET REPLACEMENT (COLUMN SHIFT)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-shaft-lower-bearing-and-jacket) or «STEERING SHAFT, LOWER BEARING, AND JACKET REPLACEMENT (FLOOR SHIFT)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-shaft-lower-bearing-and-jacket) .
6. Remove the tilt head from the steering shaft.

Scheme 98

1. Install the tilt head onto the steering shaft.
2. Install the tilt head housing and steering shaft as an assembly. Refer to «STEERING SHAFT, LOWER BEARING, AND JACKET REPLACEMENT (COLUMN SHIFT)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-shaft-lower-bearing-and-jacket) or «STEERING SHAFT, LOWER BEARING, AND JACKET REPLACEMENT (FLOOR SHIFT)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-shaft-lower-bearing-and-jacket) . IMPORTANT: The switch mounting bracket must be pressed firmly against the steering column tilt head.
3. Slide the turn signal switch housing onto the steering column shaft assembly.
4. Install the turn signal and multifunction switch assembly only. Refer to «MULTIFUNCTION, TURN SIGNAL SWITCH REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
5. Install the turn signal cancel cam assembly. Refer to «TURN SIGNAL CANCEL CAM AND UPPER BEARING THRUST WASHER»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__turn-signal-cancel-cam-and-upper) .
6. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

Turn Signal Cancel Cam and Upper Bearing Thrust Washer

Tools Required

1. J 23653-SIR Steering Column Lock Plate Compressor. See «Special Tools and Equipment»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
2. J 42137 Steering Column Lock Plate Compressor Adapter. See «Special Tools and Equipment»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .

Scheme 99

Scheme 100

Scheme 101

1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems. IMPORTANT: Let the SIR coil hang freely after removal.
2. Remove the SIR coil. Refer to «SIR COIL ASSEMBLY»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__sir-coil-assembly) in Air Bag Restraint Systems.
3. Remove and discard the bearing retainer using J 23653-SIR and J 42137 .
4. If standard column, remove the following parts from the steering shaft assembly: 4.1. The cam orientation plate (4) 4.2. The turn signal cancel cam assembly (3) 4.3. The upper bearing spring (2) 4.4. The thrust washer (1)
5. If tilt column, remove the following parts from the steering column shaft assembly: 5.1. The cam orientation plate (5) 5.2. The turn signal cancel cam assembly (4) 5.3. The upper bearing spring (3) 5.4. The upper bearing inner race seat (2) 5.5. The inner race (1)

Scheme 102

Scheme 103

Scheme 104

1. If standard column, install the following parts onto the steering shaft assembly: 1.1. The thrust washer (1) 1.2. The upper bearing spring (2) 1.3. Lubricate the turn signal cancel cam assembly (3) with GM P/N 12377900 (Canadian P/N 10953529) 1.4. Install the turn signal cancel cam assembly (3) onto the steering shaft assembly 1.5. Install the cam orientation plate (4) onto the steering shaft assembly
2. If tilt column, install the following parts onto the steering column shaft assembly: 2.1. Lubricate the inner race (1) with GM P/N 12345718 (Canadian P/N 10953516) 2.2. Install the inner race (1) 2.3. The upper bearing inner race seat (2) 2.4. The upper bearing spring (3) 2.5. Lubricate the turn signal cancel cam assembly (4) with GM P/N 12377900 (Canadian P/N 10953529) 2.6. Install the turn signal cancel cam assembly (4) onto the steering shaft assembly 2.7. The cam orientation plate (5)
3. Install the new bearing retainer onto the steering shaft assembly.
4. Compress the cam orientation plate using J 23653-SIR and J 42137 .
5. Firmly seat the bearing retainer into the groove on the steering shaft assembly.
6. Remove J 23653-SIR .
7. Install the SIR coil. Refer to «SIR COIL ASSEMBLY»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__sir-coil-assembly) in Air Bag Restraint Systems.
8. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.

Steering Column Replacement

Tools Required

J 41352 Modular Column Holding Fixture. See Special Tools and Equipment .

Note. Once the steering column is removed from the vehicle, the column is extremely susceptible to damage. Dropping the column assembly on the end could collapse the steering shaft or loosen the plastic injections, which maintain column rigidity. Leaning on the column assembly could cause the jacket to bend or deform. Any of the above damage could impair the columns collapsible design. Do NOT hammer on the end of the shaft, because hammering could loosen the plastic injections, which maintain column rigidity. If you need to remove the steering wheel, refer to the Steering Wheel Replacement procedure in this section.

Note. Do not support the steering column by only the lower or upper support bracket. Damage to the column lower bearing adapter could result.

1. Scorching
2. Melting
3. Other damage

Replace the coil, if necessary.

Scheme 105

Scheme 106

1. Disable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
2. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery.
3. Remove the inflatable restraint steering wheel module. Refer to «REMOVAL & INSTALLATION (DRIVER-SIDE)»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__removal-installation-driver-side) in Air Bag Restraint Systems.
4. Remove the steering wheel. Refer to «STEERING WHEEL REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-wheel-replacement) .
5. Remove the left instrument panel insulator. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - LEFT in instrument Panel, Gages and Console.
6. Remove the trim panel below the steering column. Refer to STEERING COLUMN FILLER REPLACEMENT in Instrument Panel, Gages and Console.
7. Remove the knee bolster. Refer to KNEE BOLSTER REPLACEMENT in Instrument Panel, Gages and Console. NOTE: The front wheels of the vehicle must be maintained in the straight ahead position and the steering column must be in the LOCK position before disconnecting the steering column or intermediate shaft. Failure to follow these procedures will cause improper alignment of some components during installation and result in damage to the SIR coil assembly.
8. Remove the intermediate steering shaft from the steering column. Refer to «INTERMEDIATE STEERING SHAFT REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
9. Remove the following components: 9.1. The shift indicator cable 9.2. The casing from the shift cam 9.3. The automatic control indicator adjuster or the park lock cable
10. Disconnect the A/T range selector cable from the ball stud on the steering column.
11. Remove the transaxle shift cable casing from the steering column bracket by depressing the two tabs.
12. Remove the mounting bolts from the lower steering column.
13. Remove the mounting bolts from the upper steering column.
14. Disconnect the steering column electrical connectors.
15. Loosen the bolt from the steering column electrical connector.
16. Separate the two halves of the steering column electrical connector. IMPORTANT: You may have to spread the coupling clamp with a flat bladed tool in order to withdraw the steering shaft.
17. Remove the steering column.
18. Install the steering column onto J 41352.

Scheme 107

Scheme 108

1. Remove the steering column from J 41352.
2. Position the steering column.
3. Insert the lower end of the steering column shaft into the intermediate steering shaft coupling.
4. Connect the steering column electrical connectors.
5. Tighten the electrical connector bolt in order to draw the two halves of the electrical connectors together.
6. Install the shift indicator cable.
7. Install the transaxle casing to the shift cam ball stud.
8. Install the column bracket to the park lock cable.
9. Install the A/T range selector cable end to the shift cam.
10. Install the A/T control indicator adjuster. CAUTION: When installing the steering column to the intermediate shaft, make sure that the shaft is seated prior to pinch bolt installation. If the bolt is inserted into the coupling before shaft installation, the two mating shafts may disengage. CAUTION: In order to ensure the intended function of the steering column in a vehicle during a crash and in order to avoid personal injury to the driver, perform the following: Tighten the steering column lower fasteners before you tighten the steering column upper fasteners. Failure to do this can damage the steering column. Tighten the steering column fasteners to the specified torque. Overtightening the upper steering column fasteners could affect the steering column collapse. NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices.
11. Loosely install the bolts to the upper and the lower steering column. Tighten 11.1. Tighten the right side lower bolt to 24 N.m (18 lb ft). 11.2. Tighten the left side lower bolt to 24 N.m (18 lb ft). 11.3. Tighten the left side upper bolt to 24 N.m (18 lb ft). 11.4. Tighten the right side upper bolt to 24 N.m (18 lb ft).
12. Install the intermediate steering shaft to the steering column. Refer to «INTERMEDIATE STEERING SHAFT REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
13. Pull the intermediate steering shaft seal up over the lower column in order to lock the seal into place.
14. Install the knee bolster. Refer to KNEE BOLSTER REPLACEMENT in Instrument Panel, Gages and Console.
15. Install the trim panel below the steering column. Refer to STEERING COLUMN FILLER REPLACEMENT in Instrument Panel, Gages and Console.
16. Install the left instrument panel insulator. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - LEFT in Instrument Panel, Gages and Console.
17. Install the steering wheel. Refer to «STEERING WHEEL REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-wheel-replacement) .
18. Install the inflatable restraint steering wheel module. Refer to «REMOVAL & INSTALLATION (DRIVER-SIDE)»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__removal-installation-driver-side) in Air Bag Restraint Systems.
19. Connect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery.
20. Enable the SIR system. Refer to «DISABLING & ACTIVATING AIR BAG SYSTEM»(/buick/century/vi-1997-2005/remont/airbag/#air-bag-restraint-systems__disabling-activating-air-bag-system) in Air Bag Restraint Systems.
21. Inspect all of the column components for the correct operation.

Steering Shaft, Lower Bearing, and Jacket Replacement (Column Shift)

Tools Required

1. J 21854-01 Pivot Pin Remover. See «Special Tools and Equipment»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
2. J 41688 Centering Sphere Installer Tool. See «Special Tools and Equipment»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .

Scheme 109

Scheme 110

Scheme 111

Scheme 112

Scheme 113

Scheme 114

Scheme 115

Scheme 116

Scheme 117

Scheme 118

1. Remove the ignition lock cylinder case. Refer to «IGNITION LOCK CYLINDER CASE REPLACEMENT (FLOOR SHIFT)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) or «IGNITION LOCK CYLINDER CASE REPLACEMENT (TILT COLUMN)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
2. Remove the tilt spring assembly only. Refer to «TILT SPRING REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
3. Remove the 2 pan head tapping screws from the turn signal and multifunction switch assembly. Remove the turn signal and multifunction switch assembly.
4. Remove the automatic transmission shift lock control.
5. Use a screwdriver to pry the automatic transmission shift lock control from the steering column jacket assembly.
6. Remove the 3 flat head 6 lobed socket tapping screws from the linear shift assembly. Remove the inner shift assembly.
7. Remove the following items from the steering shaft assembly: 7.1. The steering shaft seal (6). 7.2. The sensor retainer (5). 7.3. The lower spring retainer (4). 7.4. Dispose of the lower spring retainer (4). 7.5. The lower bearing spring (3). 7.6. The lower bearing seat (2). 7.7. The adapter and bearing assembly (1).
8. Remove the 2 pivot pins from the steering column support assembly with J 21854-01.
9. Install the tilt knob and tilt the column to the upright position.
10. Remove the upper tilt head assembly with the steering shaft assembly. IMPORTANT: Mark the race and upper shaft assembly and the lower shaft assembly to ensure proper assembly. Failure to assemble properly will cause the steering wheel to be turned 180 degrees.
11. Remove the steering shaft assembly (2) from the steering column tilt head assembly (1).
12. Tilt the race and upper shaft assembly 90 degrees to the lower shaft assembly and disengage. If necessary, remove and discard the old centering sphere and spring.
13. Insert the race and upper shaft assembly (1) into J 41688.
14. Rotate the driver 90 degrees in the counterclockwise direction in order to disengage the centering sphere.
15. Remove the shaft preload spring and the centering sphere from J 41688.
16. If necessary, discard the old centering sphere and the old joint preload spring.
17. Remove the 4 TORX® head screws from the steering column support assembly (1).
18. Dispose of the 4 TORX® head screws (2).
19. Remove the steering column support assembly (1) from the steering column jacket assembly (3).
20. Inspect the steering column for accident damage. Refer to «STEERING COLUMN ACCIDENT DAMAGE INSPECTION»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column__steering-column-accident-damage-inspection) .

Scheme 119

Scheme 120

Scheme 121

Scheme 122

Scheme 123

Scheme 124

Scheme 125

Scheme 126

Scheme 127

Scheme 128

Scheme 129

Scheme 130

Scheme 131

1. Install the steering column support assembly (1) to the steering column jacket assembly (3). NOTE: Refer to «FASTENER NOTICE»(/buick/century/vi-1997-2005/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) in Cautions and Notices.
2. Install the 4 new TORX® head screws (2). Tighten Tighten the 4 TORX® head screws to 17 N.m (13 lb ft).
3. Lubricate the centering sphere (1) with GM P/N 12345718 (Canadian P/N 10953516).
4. Install the centering sphere (1) and the joint preload spring (2) into J 41688.
5. Compress the centering sphere and joint preload spring. Rotate the driver 90 degrees in the clockwise direction until the arms lock in place.
6. Install the race and upper shaft assembly (1) into J 41688.
7. Rotate the race and upper shaft assembly (1) 90 degrees.
8. Remove the race and upper shaft assembly with J 41688.
9. Rotate the race and upper shaft assembly 90 degrees from J 41688 and remove with the race and upper shaft assembly.
10. Lubricate the centering sphere with GM P/N 12345718 (Canadian P/N 10953516).
11. Install the lower shaft assembly to the race and upper shaft assembly.
12. Install the steering shaft assembly (2) into the steering column tilt head assembly (1).
13. Install the steering column tilt head assembly (1) to the steering column jacket assembly (4).
14. Install the 2 pivot pins (3).
15. Stake the pivot pins location (2).
16. Install the following components onto the steering shaft assembly: 16.1. adapter and bearing assembly (1) 16.2. lower bearing seat (2) 16.3. lower bearing spring (3) 16.4. lower spring retainer (4) 16.5. sensor retainer (5) 16.6. steering shaft seal (6)
17. Install the linear shift assembly.
18. Install the 3 flat head 6 lobed socket tapping screws The linear shift assembly must be out of the PARK position to install the lower socket tapping screw. Tighten Tighten the 3 flat head 6 lobed socket tapping screws to 10 N.m (89 lb in).
19. Install the automatic transmission shift lock control.
20. Install the gear shift lever and put the column in the NEUTRAL position.
21. Adjust the automatic transmission shift lock control using the following steps: 21.1. Pull the tab (1) out on the block side (2) of the automatic transmission shift lock control. 21.2. Press on the adjuster block (2) to compress the internal adjuster spring to disengage the adjuster teeth. Slide the adjuster block (2) as far away from the solenoid as possible. 21.3. Lock in place by pushing the tab (1) back in.
22. Inspect the automatic transmission shift lock control using the following steps: 22.1. The automatic transmission shift lock control must lock the shift lever clevis when it is put into the PARK position. 22.2. When the column is installed in the vehicle you will not be able to shift the gear shift lever out of the PARK position without pressing on the brake pedal. The solenoid will be energized. 22.3. Readjust if needed. IMPORTANT: The electrical contact on the turn signal and multifunction switch assembly must rest on the turn signal cancel cam assembly.
23. Install the turn signal and multifunction switch assembly.
24. Install the 2 pan head tapping screws. Tighten Tighten the 2 pan head tapping screws to 10 N.m (89 lb in).
25. Install the tilt spring assembly only. Refer to «TILT SPRING REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
26. Install the ignition lock cylinder case. Refer to «IGNITION LOCK CYLINDER CASE REPLACEMENT (FLOOR SHIFT)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) or «IGNITION LOCK CYLINDER CASE REPLACEMENT (TILT COLUMN)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .

Steering Shaft, Lower Bearing, and Jacket Replacement (Floor Shift)

Tools Required

1. J 21854-01 Pivot Pin Remover. See «Special Tools and Equipment»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
2. J 41688 Centering Sphere Installer Tool. See «Special Tools and Equipment»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .

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1. Remove the ignition lock cylinder case. Refer to «IGNITION LOCK CYLINDER CASE REPLACEMENT (FLOOR SHIFT)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) or «IGNITION LOCK CYLINDER CASE REPLACEMENT (TILT COLUMN)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
2. Remove the tilt spring only. Refer to «TILT SPRING REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
3. Remove the 2 pan head screws (1) from the turn signal and multifunction switch assembly (2).
4. Remove the turn signal and multifunction switch assembly (2).
5. Remove the steering shaft seal (1).
6. Remove the sensor retainer (2) from the adapter and bearing assembly.
7. Remove the following components from the steering shaft assembly: 7.1. The lower spring retainer (1). 7.2. Dispose of the lower spring retainer (1). 7.3. The lower bearing spring (2). 7.4. The lower bearing seat (3) from the adapter and bearing assembly (4). 7.5. The adapter and bearing assembly (4).
8. Remove the 2 pivot pins (3) from the steering column support assembly (1) by using J 21854-01.
9. Install the tilt knob into the steering column tilt head assembly.
10. Pull back on the tilt knob and at the same time pull the steering column tilt head assembly down and away from the steering column.
11. Remove the steering column tilt head assembly (1) with the steering shaft assembly from the steering column support assembly (2).
12. Remove the tilt knob.
13. Remove the steering shaft assembly (2) from the steering column tilt head assembly (1). IMPORTANT: Mark the race and upper shaft assembly and the lower shaft assembly before disassembly. Failure to assemble the race and upper shaft assembly and the lower shaft assembly correctly will cause the steering wheel to be turned 180 degrees.
14. Tilt the race and upper shaft assembly (1) 90 degrees to the lower shaft assembly (2).
15. Disengage the race and upper shaft assembly (1) from the lower shaft assembly (2).
16. Insert the race and upper shaft assembly (1) into J 41688.
17. Rotate the driver 90 degrees in the counterclockwise direction in order to disengage the centering sphere.
18. Remove the shaft preload spring from the centering sphere.
19. If necessary, discard the old centering sphere and the old joint preload spring.
20. Remove the 4 TORX® head screws (2) from the steering column support assembly (1).
21. Dispose of the 4 TORX® head screws.
22. Remove the steering column support assembly (1) from the steering column jacket assembly.

Note. Refer to FASTENER NOTICE in Cautions and Notices.

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1. Attach the steering column support assembly (1) to the steering column jacket assembly with the 4 TORX® head screws (2). Tighten Tighten the 4 TORX® head screws to 17 N.m (13 lb ft).
2. Lubricate the centering sphere with GM P/N 12345718 (Canadian P/N 10953516).
3. Install the centering sphere (1) and the joint preload spring (2) by using J 41688.
4. Place the base of J 41688 in a vise.
5. Place the bottom half of the new centering sphere (1), the new joint preload spring (2), the top half of the new centering sphere (1), into J 41688.
6. Compress the centering sphere and the joint preload spring.
7. Rotate the driver 90 degrees in the clockwise direction until the arms lock in place.
8. Attach the race and upper shaft assembly (1) to the centering sphere.
9. Rotate the race and upper shaft assembly (1) downward 90 degrees until the centering sphere is locked in place.
10. Remove the race and upper shaft assembly and J 41688 from the vise.
11. Disassemble J 41688 by separating the base.
12. Remove the race and upper shaft assembly, which is now attached to the centering sphere, from J 41688.
13. Lubricate the centering sphere with GM P/N 12345718 (Canadian P/N 10953516).
14. Align the lower steering shaft assembly to the race and upper shaft assembly by using the marks from the disassembly procedure.
15. Tilt the lower steering shaft assembly at 90 degrees to the race and upper shaft assembly.
16. Install the lower steering shaft assembly onto the race and upper shaft assembly.
17. Install the steering shaft assembly (2) into the steering column tilt head assembly (1).
18. Install the steering shaft assembly with the steering column tilt head assembly (1) into the steering column support assembly.
19. Move the tilt knob and push the steering column tilt head assembly up towards the steering column in order to lock the steering wheel lock shoes in place. IMPORTANT: Replace the steering column support assembly and the pivot pins if they have been staked 3 times.
20. Stake the steering column support assembly in 3 locations.
21. Install the 2 pivot pins (1) into the steering column tilt head assembly. 21.1. Lubricate the pivot pins (1) with GM P/N 12346293 (Canadian P/N 992723). 21.2. Firmly seat each pivot pin (1) into the steering column tilt head assembly.
22. Install the adapter and bearing assembly (4) onto the steering column jacket assembly. 22.1. Align the tab on the adapter and bearing assembly (4) with the slot in the steering column jacket assembly. 22.2. Push the adapter and bearing assembly (4) onto the steering shaft assembly until the tab snaps into the slot.
23. Install the lower bearing seat (3) onto the adapter and bearing assembly (4). The lower bearing seat must contact the adapter and bearing assembly (4).
24. Install the lower bearing spring (2) onto the steering shaft assembly.
25. Install the lower spring retainer (1) onto the steering shaft assembly. IMPORTANT: Align the block tooth on the steering shaft assembly to the 12 o'clock position.
26. Install the sensor retainer (2) onto the adapter and bearing assembly using the following steps: 26.1. Align the slots of the sensor retainer (2) to the ribs of the adapter and bearing assembly. 26.2. Push the sensor retainer (2) onto the steering shaft assembly so that the sensor retainer (2) contacts the adapter and bearing assembly.
27. Install the steering shaft seal (1) onto the steering shaft assembly. IMPORTANT: The electrical contact from the turn signal and multifunction switch assembly must rest on the turn signal cancel cam assembly.
28. Install the turn signal and multifunction switch assembly (2) onto the steering column tilt head assembly.
29. Screw the 2 pan head tapping screws (1) into the turn signal and multifunction switch assembly (2). Tighten Tighten the 2 pan head tapping screws to 7 N.m (62 lb in).
30. Install the tilt spring only. Refer to «TILT SPRING REPLACEMENT»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .
31. Install the ignition lock cylinder case. Refer to «IGNITION LOCK CYLINDER CASE REPLACEMENT (FLOOR SHIFT)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) or «IGNITION LOCK CYLINDER CASE REPLACEMENT (TILT COLUMN)»(/buick/century/vi-1997-2005/remont/ignition-switchsteering-lock/#steering-wheel-and-steering-column) .

Inflatable Restraint Steering Wheel Module Coil Centering

Note. The new SIR coil assembly will be centered. Improper alignment of the SIR coil assembly may damage the unit, causing an inflatable restraint malfunction.

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1. Verify the following conditions before centering the SIR coil: The wheels on the vehicle are straight ahead. The block tooth (1) of the steering shaft assembly is in the 12 o'clock position. The ignition switch is in the LOCK position.
2. If the front (5) of the SIR coil has a centering window (4), and the back side (2) includes a spring service lock (1), perform the following steps: 2.1. Hold the SIR coil with the face up. 2.2. While depressing the spring service lock, rotate the coil hub clockwise until the coil ribbon stops. 2.3. Rotate the coil hub slowly, counterclockwise, until the centering window appears yellow and both arrows (3) line up. 2.4. Release spring service lock between the locking tab. The SIR coil is now centered. 2.5. Align the centered SIR coil with the horn tower and slide onto the steering shaft assembly.
3. If the front (4) of the SIR coil has a centering window (3), and the back side (1) includes NO spring service lock, perform the following steps: 3.1. Hold the SIR coil with the face up. 3.2. Rotate the coil hub clockwise until the coil ribbon stops. 3.3. Rotate the coil hub slowly, counterclockwise until the centering window appears yellow and both arrows (2) line up. This is the CENTER position. 3.4. While holding the coil hub in the CENTER position, align the SIR coil with the horn tower and slide onto the steering shaft assembly.
4. If the front side (3) of the SIR coil has NO centering window, but the back side (2) includes a spring service lock (1), perform the following steps: 4.1. Hold the SIR coil with the back side up. 4.2. While depressing the spring service lock, rotate the coil hub in the direction of the arrow (4) until the coil ribbon stops. 4.3. Still pressing the spring service lock, rotate the coil hub in the opposite direction 21/2 revolutions. 4.4. Release the spring service lock between locking tabs. The SIR coil is now centered. 4.5. Align the centered SIR coil with the horn tower and slide onto the steering shaft assembly.
5. For the front side (2) of the SIR coil has NO centering window, and the back side (1) includes NO spring service lock, perform the following steps: 5.1. Hold the SIR coil with the face up. 5.2. Rotate the coil hub in the direction of the arrow until the coil ribbon stops. 5.3. Rotate the coil hub, slowly, counterclockwise, for 21/2 revolutions. This is the CENTER position. 5.4. While maintaining the coil hub in the CENTER position, align the centered SIR coil with the horn tower and slide onto the steering shaft assembly.

Steering Wheel and Column Description and Operation

The steering wheel and column has 4 primary functions

1. Vehicle steering
2. Vehicle security
3. Driver convenience
4. Driver safety

Vehicle Steering

The steering wheel is the first link between the driver and the vehicle. The steering wheel is fastened to a steering shaft within the column. At the lower end of the column, the intermediate shaft connects the column to the steering gear.

Vehicle Security - Some Vehicle Models

Theft deterrent components are mounted and designed into the steering column. The following components allow the column to be locked in order to minimize theft

1. The ignition switch
2. The steering column lock
3. The ignition cylinder

Driver Convenience

The steering wheel and column may also have driver controls attached for convenience and comfort.

The following controls may be mounted on or near the steering wheel or column.

1. The turn signal switch
2. The hazard switch
3. The headlamp dimmer switch
4. The wiper/washer switch
5. The horn pad/cruise control switch
6. The redundant radio/entertainment system controls
7. The tilt or tilt/telescoping functions
8. The navigation OnStar® features
9. The HVAC controls

Driver Safety

In the event of a front-end collision the energy-absorbing steering column compresses, which reduces the chance of injury to the driver. The mounting capsules break away from the mounting bracket in the event of an accident.

Ignition Lock Cylinder Control Actuator

If the vehicle is equipped with a floor-mounted console gear shifter, an added safety feature is an ignition lock cylinder control actuator system in the steering column. The ignition lock cylinder control actuator system prevents the steering wheel from being locked when the transmission is in gear and the vehicle may be moving. The column ignition lock system consists of a ignition lock cylinder control actuator and a ignition lock cylinder control switch, that is located in the A/T shift lock control switch. The ignition lock cylinder control actuator contains a spring-loaded pin that mechanically prevents the ignition key cylinder from being turned to the Lock position when the transmission is not in the Park position. If vehicle power is lost or the transmission is not in the Park position, the operator will not be able to turn the ignition key to the Lock position and will not be able to remove the ignition key from the column.

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See also:
• FASTENER NOTICE
• LIFTING AND JACKING THE VEHICLE
• SIR CAUTION
• DISABLING & ACTIVATING AIR BAG SYSTEM
• SIR INFLATOR MODULE COIL CAUTION
• REMOVAL & INSTALLATION (DRIVER-SIDE)
• SIR COIL ASSEMBLY
• STEERING WHEEL AND COLUMN DESCRIPTION AND OPERATION
• LOCK SYSTEM DOES NOT UNLOCK
• STEERING WHEEL REPLACEMENT
• TURN SIGNAL CANCEL CAM AND UPPER BEARING THRUST WASHER
• STEERING SHAFT, LOWER BEARING, AND JACKET REPLACEMENT (COLUMN SHIFT)
• STEERING COLUMN ACCIDENT DAMAGE INSPECTION