Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps

GMC Sierra / GMC Sierra Owners Manuals / Vehicle Care / Bulb Replacement / Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps

To replace one of these bulbs:

1. Open the tailgate. See Tailgate on page 2‑10 for more information.

2. Remove the two rear lamp assembly screws near the tailgate latch strikerpost and pull rearward until disengaging the two outer pins on the taillamp assembly from the vehicle.

2. Remove the two rear lamp assembly screws near the tailgate latch strikerpost and pull rearward until disengaging the two outer pins on the taillamp assembly from the vehicle.

B. Back-up Lamp A. Stoplamp/Taillamp/Turn Signal Lamp
B. Back-up Lamp

3. Turn the bulb socket counterclockwise to remove it from the taillamp assembly.

4. Pull the old bulb straight out from the socket.

5. Press a new bulb into the socket and turn the socket clockwise into the taillamp assembly.

6. Reinstall the taillamp assembly.

    See also:

    Units
    Press the vehicle information button until UNITS displays. This display allows you to select between metric or English units of measurement. Once in this display, press the set/ reset button to selec ...

    Object Detection System Messages
    FORWARD COLLISION ALERT OFF If your vehicle has the Forward Collision Alert (FCA) system, this message may display if the FCA system cannot activate due to a temporary condition. See Forward Coll ...

    Dinghy Towing
    If the vehicle is front-wheel-drive, it can be dinghy towed from the front. These vehicles may also be towed by putting the front wheels on a dolly. See “Dolly Towing” later in this section. I ...