Tail/Turn Signal Lamp Replacement Cab/Chassis

1. Disconnect the lamp electrical connector from the lamp assembly.
2. Remove the nuts from the back of the bracket.
3. Remove the lamp assembly from the bracket.
4. Remove the 4 lens screws.
5. Remove the lens.
6. Remove the gasket.
7. Remove the bulb.

1. Install the lamp assembly to the bracket.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nuts to the back of the bracket.

Tighten
Tighten the nuts to 35 N·m (26 lb ft).

3. Connect the electrical connector to the lamp assembly.
4. Install the bulb.
5. Install the gasket.
6. Install the lens.
7. Install the 4 screws.

Tighten
Tighten the 4 screws to 2 N·m (18 lb in).

Tail/Turn Signal Lamp Replacement Pickup/ Utility/ Z-71 Tahoe

1. Make sure the headlamp switch is in the OFF position.



2. Lower the endgate or open the cargo doors.




Important: Z-71 Tahoes have a rear tail lamp cover, Once the cover is installed removal will result in breakage of the cover.

3. Remove the 2 screws retaining the tail/turn signal lamp assembly to the body.



4. Rotate the tail/turn signal lamp assembly from the vehicle.
5. Disconnect the electrical connector from the assembly.
6. Identify the bulb in need of replacement.

•	The top bulb is a parking lamp.

•	The center bulb is a parking, brake, and turn indicator lamp.

•	The lower bulb is a backup lamp.

7. Pull the bulb straight out by the tabs on the base of the bulb in order to remove the bulb.

1. Push the bulb straight into the lamp assembly in order to install the bulb.
2. Install the lamp base to the lens assembly with the 2 screws.



3. Connect the electrical connector.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.




4. Install the tail/turn signal lamp assembly to the vehicle with the 2 screws.

Tighten
Tighten the 2 screws to 2 N·m (18 lb in).