Lighting Systems: Removal & Installation Hummer H2 I

Removal Procedure

1. Disconnect the electrical connector from the stop lamp switch (2).
2. Remove the pushrod retaining clip (4).
3. Remove the stop lamp switch (2).

Installation Procedure

1. Install the stop lamp switch (2).
2. Install the pushrod retaining clip (4).
3. Connect the electrical connector to the stop lamp switch (2).

1. Remove the instrument panel trim plate. Refer to «Trim Plate Replacement - Instrument Panel (I/P) Accessory Left»(ref-187217-S38179256272005083100000) in Instrument Panel, Gauges, and Console.
2. Pull out the headlamp switch in order to release the clips.
3. Remove the headlamp switch.
4. Disconnect the electrical connector.

1. Connect the electrical connectors to the headlamp switch.
2. Align and install the headlamp switch to the instrument panel.
3. Install the instrument panel trim plate. Refer to «Trim Plate Replacement - Instrument Panel (I/P) Accessory Left»(ref-187217-S38179256272005083100000) in Instrument Panel, Gauges, and Console.

1. Remove the instrument panel top cover. Refer to «Trim Pad Replacement - Instrument Panel (I/P) Upper»(ref-187217-S16609271192005083100000) in Instrument Panel, Gauges, and Console.
2. Disconnect the electrical connector to the ambient light sensor on the underside of the I/P upper trim panel.
3. Turn the ambient light sensor 1/4 turn and remove it from the I/P top cover.

1. Install the ambient light sensor to the underside of the I/P top cover, turning it 1/4 turn to secure it in place.
2. Connect the electrical connector to the ambient light sensor on the underside of the I/P top trim panel.
3. Install the I/P top cover to the I/P. Refer to «Trim Pad Replacement - Instrument Panel (I/P) Upper»(ref-187217-S16609271192005083100000) in Instrument Panel, Gauges, and Console.

1. Disconnect the electrical connector.
2. Remove the nuts from the rear of the lamp assembly.
3. Disengage the clips retaining lamp.
4. Remove the lamp assembly.
5. Remove the bulb socket by turning the socket counter clockwise.
6. Remove the bulb.

1. Install the bulb.
2. Install the bulb socket by turning the socket clockwise.
3. Install the lamp assembly.
4. Engage the clips retaining the lamp.
5. Install the nuts to the rear of the lamp assembly. Tighten: Tighten the nuts to 6 N.m (53 lb in).
6. Connect the electrical connector.

1. Remove the knee bolster trim panel. Refer to «Trim Panel Replacement - Knee Bolster»(ref-187217-S19396169522005083100000) in Instrument Panel, Gauges and Console.
2. On the back side of the fuse block release the retainer while pulling the flasher (1) inboard.
3. Remove the flasher (1) from the fuse block.

1. Install the flasher (1) to the fuse block until the retainer clicks into place.
2. Install the knee bolster. Refer to «Trim Panel Replacement - Knee Bolster»(ref-187217-S19396169522005083100000) in Instrument Panel, Gauges and Console.

1. Remove the instrument panel cluster (IPC). Refer to «Instrument Panel Cluster (IPC) Replacement»(ref-187217-S04067860002005083100000) in Instrument Panel, Gauges and Console.
2. Unclip the IPC rear cover plate by prying gently on the tabs with a screwdriver.
3. Remove rear cover plate from the IPC.
4. Remove the bulb and the base assembly by turning clockwise and pulling outward.

1. Install the bulb to the base.
2. Install the bulb and base assembly into the IPC by turning the bulb 1/2 turn clockwise.
3. Carefully snap the rear cover plate to the IPC.
4. Install the IPC. Refer to «Instrument Panel Cluster (IPC) Replacement»(ref-187217-S04067860002005083100000) in Instrument Panel, Gauges and Console.

1. Use a flat bladed tool and pop the reading lamp lens from the forward console.
2. Turn the bulb 1/4 turn and remove the bulb from the reading lamp socket.
3. Remove the overhead console.
4. Disconnect the electrical connector from the reading lamp.
5. Remove the lamp socket assembly from the overhead console.

1. Fasten the new lamp socket to the overhead console. Tighten: Tighten the screws to 2 N.m (18 lb in).
2. Connect the electrical connectors to the reading lamp.
3. Attach the overhead console to the headliner. Tighten: Tighten the screws to 2 N.m (18 lb in).
4. Install the new bulb assembly to the overhead console.
5. Snap the lens for the reading lamp into place in the overhead console.

1. Remove the overhead console. Refer to «Console Replacement - Overhead (Full Length)»(ref-187215-S02423310712005083100000) «Console Replacement - Overhead (Short Length)»(ref-187215-S37639558712005083100000) in Interior Trim.
2. Note the color and position of the wires (1) on the switch terminals.
3. Disconnect the wires (1) from the switch.
4. Remove the nuts (2) retaining the switch (3) to the overhead console.
5. Remove the switch (3) from the overhead console.

1. Position the switch (3) into the opening in the overhead console.
2. Install the nut (2) onto the switch (3).
3. Tighten the nut (2) until fully seated not stripped.
4. Connect the wires (1) to the terminals on the switch (3) as noted in the removal procedure.
5. Install the overhead console. Refer to «Console Replacement - Overhead (Full Length)»(ref-187215-S02423310712005083100000) «Console Replacement - Overhead (Short Length)»(ref-187215-S37639558712005083100000) in Interior Trim.

1. Ensure that the headlamp switch is in the OFF position
2. Lower the I/P storage compartment door by pressing the tab.
3. Depress the switch plunger.
4. Pull the switch assembly downward from the retainer.
5. Disconnect the electrical connector (1) from the I/P compartment lamp switch.
6. Remove the I/P compartment lamp switch (2).

1. Connect the electrical connector (1) to the I/P compartment lamp switch.
2. Depress the switch plunger (2).
3. Slide the assembly upward into the retainer.
4. Close the instrument panel storage compartment.

1. Fold down the sunshade.
2. Open the cover to the vanity mirror in order to reveal the vanity light.
3. Use a flat bladed tool in order to release the retaining tab on the vanity light lens.
4. Remove the vanity light lens from the vanity mirror.
5. Remove the bulb from the socket.

1. Install the bulb to the socket.
2. Install the vanity light lens to the vanity mirror ensuring the retaining tab is fully seated.
3. Close the cover to the vanity mirror.
4. Return the sunshade to the folded up position.

1. Remove the lamp lens assembly using a small screw driver.
2. Remove the dome lamp assembly from the headliner.
3. Disconnect the electrical connector.
4. Remove the bulb.

1. Install the bulb.
2. Connect the electrical connector.
3. Install the dome lamp assembly into the headliner.
4. Press the lens into place.

1. Open the hood.
2. Disconnect the electrical connector.
3. Depress the locking tab at the bottom of the lamp to disengage.
4. Tilt the lamp to disengage the top hook from the hood.
5. Remove the lamp from the hood.

1. Position the lamp to the hood.
2. Tilt the lamp to engage the top hook to the hood.
3. Apply light pressure at the bottom of the lamp to engage the retaining clip.
4. Connect the electrical connector.
5. Close the hood.

1. Remove the grille. Refer to «Grille Replacement»(ref-187240-S25910809282005083100000) in Exterior Trim.
2. Open the hood.
3. Remove the retaining nuts.
4. Disconnect the wiring harness.
5. Close the hood.
6. Remove the headlamp.

1. Open the hood.
2. Connect the wiring harness.
3. Install the headlamp.
4. Ensure the alignment pin (4) is positioned to the housing (2).
5. Install the retaining nuts (3). Tighten: Tighten the nuts to 6 N.m (53 lb in).
6. Connect the electrical connector (4) to the headlamp bulb socket.
7. Close the hood.
8. Install the grille. Refer to «Grille Replacement»(ref-187240-S25910809282005083100000) in Exterior Trim.

1. Open the hood.
2. Disconnect the electrical connector (4).
3. Remove the headlamp bulb retaining ring.
4. Remove the bulb from the socket.

1. Install the bulb to the socket.
2. Install the headlamp bulb retaining ring.
3. Connect the electrical connector (4).
4. Close the hood.

1. Remove the sunshade.
2. Remove the windshield pillar garnish molding. Refer to «Garnish Molding Replacement - Windshield Pillar»(ref-187215-S17714370252005083100000) in Interior Trim.
3. Disconnect the body harness roof lamp wire connectors.
4. Remove the overhead console. Refer to «Console Replacement - Overhead (Full Length)»(ref-187215-S02423310712005083100000) «Console Replacement - Overhead (Short Length)»(ref-187215-S37639558712005083100000) in Interior Trim.
5. Remove the power switch nut.
6. Remove the power switch.
7. Remove the connector retention clip from the hole in the driver's side lamp bar assembly stanchion.
8. Remove the clearance lamp bulb and the clearance lamp. Refer to «Clearance Lamp Replacement (SUV)»(ref-187211-S37849965142005083100000) .
9. Remove the wires through the opening (1) in the marker lamp pocket in the roof rail.
10. Remove the bolt (1) in the opening in the dash rail from the J-nut on the upper relay flange, and remove the relays.
11. Disconnect the section of harness connected to the Z82 location of the MidBec, trailer wiring connector, and remove.
12. Remove the body harness containing the 3 wires through the overhead console opening through the headliner down the windshield pillar.
13. If equipped, remove the luggage carrier roof rails. Refer to «Power Roof Systems Component Views»(ref-187264-S07485382282005083100000) in Roof.
14. Remove the lamp bar assembly with the lamps installed, out of the roof from the openings in the roof rails.
15. Disconnect the lamp electrical connectors from the retainers on the back of the lamp stanchions.
16. Remove the lamps from the U-brackets of the lamp bar assembly.

1. Install the lamps into the U-brackets of the lamp bar assembly.
2. Install the bolts (1) through the U-brackets and the lamps. Tighten: Tighten the bolts to 15 N.m (11 lb ft).
3. Connect the lamp electrical connectors (2), and snap the connectors into the retainers on the back of the lamp stanchions (3). If equipped, remove the luggage carrier roof rails. Refer to «Luggage Carrier Replacement (SUV)»(ref-187264-S42030582302005083100000) .
4. Guide the lamp bar assembly, with the lamps installed, onto the roof through the openings in the roof rails.
5. If equipped, replace the luggage carrier roof rails. Refer to «Power Roof Systems Component Views»(ref-187264-S07485382282005083100000) in Roof.
6. Install the lamp covers.
7. Remove the overhead console. Refer «Console Replacement - Overhead (Full Length)»(ref-187215-S02423310712005083100000) «Console Replacement - Overhead (Short Length)»(ref-187215-S37639558712005083100000) in Interior Trim.
8. Remove the windshield pillar garnish molding. Refer to «Garnish Molding Replacement - Windshield Pillar»(ref-187215-S17714370252005083100000) in Interior Trim.
9. Remove the sunshade. Refer to «Sunshade Replacement»(ref-187215-S36908867292005083100000) in Interior Trim.
10. Route the section of the body harness containing the three individual wire connectors up the windshield pillar and through the headliner into the overhead console opening.
11. Route the section of the harness with the connector under the dashboard, and connect into the Z82 location of the MidBec (trailer wiring connector), ensuring the connector is fully seated.
12. Route the section of the body harness containing the relays along the dash panel rail. Install bolt (1) through the opening in the dash rail, through the relays and into the J-nut on the upper relay flange. Tighten: Tighten bolt to 7 N.m (62 lb in).
13. Locate the harness for the overhead clearance lamp, which is located near the top of the A-pillar above the headliner, and disconnect.
14. Remove the drivers side front overhead marker lamp and bulb. Refer to «Clearance Lamp Replacement (SUV)»(ref-187211-S37849965142005083100000) .
15. Remove the clearance lamp harness through the hole in the roof, being careful not snag or force harness out.
16. Guide the section of the harness containing the 3 individual wire connectors down through the hole where the original harness was removed in step 9, and into the vehicle along the A-pillar.
17. Guide the remaining wires through the opening (1) the marker lamp pocket in the roof rail.
18. Guide the wires into the connector. Once terminals are fully seated, close the retaining clip of the connector. Wires are to be placed in this order: Opening A = Purple wire Opening B = Black wire Opening C = Red wire
19. Insert connector into the connector from the light bar assembly.
20. Re-install the clearance lamp, making sure to re-install the lamp bulb. Refer to «Clearance Lamp Replacement (SUV)»(ref-187211-S37849965142005083100000) .
21. Insert connector retention clip on the connector into the hole on the drivers' side lamp bar assembly stanchion.
22. Inside the vehicle, guide the 3 individual wire connectors running out of the headliner through the power switch nut (1) and through the hole from the inside of the overhead center console.
23. Insert the individual wire connectors into the terminals of the power switch, and insert the switch into the overhead center console. Hand tighten the power switch nut securely. Wires are to be placed in this order: Terminal 1= Blue Wire Terminal 2= Yellow Wire Terminal 3= Black Wire
24. Install the overhead center console. Refer to «Console Replacement - Overhead (Full Length)»(ref-187215-S02423310712005083100000) «Console Replacement - Overhead (Short Length)»(ref-187215-S37639558712005083100000) in Interior Trim.
25. Locate the harness connector for the overhead clearance lamp that was disconnected in step 15, and connect to the new harness. Guide the remaining 2 connectors down to underneath the dash.
26. Once the wires have been routed under the dash, locate the connectors on the body harness.
27. Insert one wire and connector from roof lamp harness into one wire and connector in the body harness. Connect the remaining connectors. Tie wrap any loose wires securely to prevent squeaks, rattles, or wire damage.
28. Replace the windshield pillar garnish molding. Refer to «Garnish Molding Replacement - Windshield Pillar»(ref-187215-S17714370252005083100000) in Interior Trim.
29. Replace the sunshade. Refer to «Sunshade Replacement»(ref-187215-S36908867292005083100000) in Interior Trim.
30. Operate lights and inspect for proper operation.

Marker Lamp Bulb Replacement - Side

The side marker lamps on this vehicle use an LED type system. If the lamp fails, it must be replaced as an assembly. There are no conventional type bulbs to replace.

1. Open the hood.
2. Disconnect the electrical connector (5).
3. Remove the screws from the lamp housing.
4. Remove the lamp, with the attached harness (1), from the hood.

1. Install the lamp, with the attached harness, to the hood.
2. Install the screws to the lamp housing. Tighten: Tighten the screws to 3 N.m (26 lb in).
3. Connect the electrical connector and secure the harness.
4. Close the hood.

1. Remove the interior trim panel. Refer to «Door Sill Plate Replacement - Rear»(ref-187215-S08503312222005083100000) .
2. Remove the wiring harness fastener from the body.
3. Disconnect the electrical connector.
4. Remove the screws from the lamp.
5. Remove the lamp, with the attached harness, from the vehicle.

1. Install the lamp, with the attached harness, to the vehicle.
2. Install the screws to the lamp. Tighten: Tighten the screws to 3 N.m (26 lb in).
3. Connect the electrical connector.
4. Install the wiring harness fastener to the body.
5. Install the interior trim panel. Refer to «Door Sill Plate Replacement - Rear»(ref-187215-S08503312222005083100000) .

1. Remove the grille. Refer to «Grille Replacement»(ref-187240-S25910809282005083100000) in Exterior Trim.
2. Open the hood.
3. Remove the retaining nuts.
4. Disconnect the electrical harness connector (2).
5. Disengage the retaining clips.
6. Close the hood.
7. Remove the lamp.
8. Remove the bulb socket by turning the socket counterclockwise.
9. Remove the bulb.

1. Install the bulb.
2. Install the bulb socket (6) by turning the socket clockwise.
3. Install the lamp.
4. Open the hood.
5. Install the retaining nuts (2). Tighten: Tighten the nuts to 6 N.m (53 lb in).
6. Connect the electrical harness.
7. Close the hood.
8. Install the grille. Refer to «Grille Replacement»(ref-187240-S25910809282005083100000) in Exterior Trim.

1. Insert a flat-bladed tool underneath the lamp on the notched side, to disengage the retaining clip.
2. Tilt the lamp back to disengage the hook.
3. Remove the electrical harness at the connector.
4. Remove the lamp from the vehicle.
5. Turn the bulb socket counterclockwise to remove the bulb from the lamp assembly.
6. Remove the bulb from the socket.

1. Install the bulb to the socket.
2. Turn the bulb socket clockwise to lock the socket into the lamp assembly.
3. Install the lamp assembly to the vehicle.
4. Install the electrical harness at the connector.
5. Tilt the lamp forward to engage the hook.
6. Apply light pressure downward on the lamp to engage the retaining clip.

1. Remove the screw from the lamp.
2. Remove the lamp by tilting back the assembly and disengaging the hook.
3. Remove the bulb socket.
4. Remove the lamp from the vehicle.
5. Remove the bulb.

1. Install the bulb.
2. Install the lamp to the vehicle.
3. Install the bulb socket.
4. Install the lamp assembly by engaging the hook and tilting the assembly down into place.
5. Install the screw to the lamp assembly. Tighten: Tighten the screw to 2.5 N.m (22 lb in).

1. Remove the liftgate trim panel. Refer to «Trim Panel Replacement - Liftgate»(ref-187243-S20317004132005083100000) in Body Rear End.
2. Disconnect the electrical connector from the high mounted stop lamp.
3. Remove the retaining screws.
4. Remove the grommet from the liftgate.
5. Remove the lamp, with the attached harness, from the vehicle.

1. Install the lamp, with the attached harness, to the vehicle.
2. Install the grommet to the liftgate.
3. Install the retaining screws. Tighten: Tighten the screws to 3 N.m (26 lb in).
4. Connect the electrical connector to the high mounted stop lamp.
5. Install the liftgate trim panel. Refer to «Trim Panel Replacement - Liftgate»(ref-187243-S20317004132005083100000) in Body Rear End.

1. Remove the screws from the license pocket bezel.
2. Remove the bezel and the lamp.
3. Disconnect the electrical connector.
4. Remove the screw from the lamp.
5. Remove the lamp from the vehicle.
6. Remove the bulb socket from the lamp.
7. Remove the bulb.

1. Install the bulb to the socket.
2. Install the bulb socket to the lamp.
3. Install the lamp to the vehicle.
4. Install the screws to the lamp. Tighten: Tighten the screws to 3 N.m (26 lb in).
5. Connect the electrical connector.
6. Install the bezel and lamp to the license plate pocket.
7. Install the screws to the license pocket bezel. Tighten: Tighten the screws to 3 N.m (26 lb in).

1. Remove the screws from the lamp.
2. Remove the lamp from the body.
3. Disconnect the electrical harness at the connector.
4. Turn the bulb socket counterclockwise.
5. Remove the bulb from the socket.

1. Install the bulb to the socket.
2. Turn the bulb socket clockwise in order to lock.
3. Connect the electrical harness at the connector.
4. Install the lamp to the body.
5. Install the screws to the lamp. Tighten: Tighten the screws to 6 N.m (53 lb in).

1. Open the liftgate.
2. Remove the screws retaining the tail lamp guard.
3. Carefully separate adhesive strip from body.
4. Remove the tail lamp guard from the vehicle.

1. Position the tail lamp guard to the vehicle.
2. Install the screws retaining the tail lamp guard. Tighten: Tighten to 6 N.m (53 lb in).
3. Clean the surface where the adhesive strip will mount with varnish and makers (VMP) naptha.
4. Carefully align adhesive strip to body and pull exposed tape lead down.
5. Apply approximately 30 psi to tail lamp guard to adhere guard to the body.
6. Close the liftgate.