Cellular Communication System: Removal & Installation Cadillac STS I

Removal Procedure

1. Remove the passenger side sail panel. Refer to «Sail Panel Replacement»(ref-197541-S24952228632005101200000) in Interior Trim
2. Lower the rear of the headliner to gain access to the coax cable. Refer to «Headliner Replacement»(ref-197541-S10799250892005101200000) in Interior Trim.
3. Remove the right rear compartment trim.
4. Disconnect the coax cable connectors. IMPORTANT: If replacing the cable with a new one cut the connector ends off and leave the old cable installed in the wire harness.
5. Remove the coax cable.

Installation Procedure

1. Install the coax cable.
2. Connect the electrical connectors.
3. Install the right side sail panel. Refer to «Sail Panel Replacement»(ref-197541-S24952228632005101200000) in Interior Trim.
4. Install the headliner. Refer to «Headliner Replacement»(ref-197541-S10799250892005101200000) in Interior Trim.

1. Remove the rear sail panels. Refer to «Sail Panel Replacement»(ref-197541-S24952228632005101200000) in Interior Trim.
2. Lower the rear of the headliner.
3. Remove the foam tape from the antenna cable connection.
4. Disconnect the antenna connectors (1).
5. Remove the antenna bolt (2) and expansion sleeve (3).
6. Remove the antenna.
7. Remove the screws securing antenna mast to the antenna base.
8. Remove the mast.

1. Install the antenna to the roof.
2. Route the wiring pigtail to the side in the slot on the antenna shaft and install the antenna expansion sleeve (3) and bolt (2) to the antenna shaft. Tighten: Tighten the bolt to 9 N.m (80 lb in).
3. Connect the antenna connectors (1).
4. Wrap the connectors (1) with foam tape.
5. Install the antenna cable connection above the AM/FM antenna module.
6. Install the antenna cable hold down clips.
7. Align the headliner to the roof panel.
8. Install the rear sail panels. Refer to «Sail Panel Replacement»(ref-197541-S24952228632005101200000) in Interior Trim.
9. Locate the mast to the antenna base.
10. Install the screws securing the mast to the antenna base. Tighten: Tighten the screws to 1 N.m (9 lb in).

1. Remove the right rear compartment trim. Refer to «Compartment Trim Panel Replacement - Rear»(ref-197543-S21104577462005101200000) in Body Rear End.
2. Remove the nuts (2) securing the OnStar® module (1) to the vehicle body.
3. Disconnect all the electrical connectors from the module.
4. Remove the module from the vehicle.

1. When replacing the VCIM, record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM.
2. Reconnect the electrical connectors the module.
3. Install the module onto the vehicle. Tighten: Tighten the nuts to 9 N.m (80 lb in).
4. Install the scan tool. Use the special functions menu in order to perform the OnStar® setup procedure for this vehicle.
5. Move the vehicle to an open area that is away from tall buildings and with a clear view of unobstructed sky. Allow the vehicle to run for 10 minutes.
6. Use the ID information menu on the scan tool to access the new station ID (STID) and the electronic serial number (ESN) from the new VCIM.
7. Press the blue OnStar® button to connect to the OnStar® Call Center and perform the following procedure: Tell the advisor that this vehicle has received a new VCIM. Ask the advisor to add the new STID and the ESN to update the customer's account. Follow any additional instructions from the OnStar® advisor. Ask the advisor to activate the OnStar® Personal Calling feature, if available.
8. Voice recognition in the generation 4 module can NOT be changed. The default language for voice recognition in the generation 5 OnStar® module is English. To change the language resident in the module, refer to «Service Programming System (SPS)»(ref-197540-S04668130452005101200000) in Programming.