Taillamps (Chassis Cab Models)

A. Backup Lamp
A. Backup Lamp
B. Stoplamp/Taillamp/Turn Signal Lamp

To replace one of these bulbs:

1. Remove the four screws.

2. Lift the lens off the lamp assembly.

3. Turn the old bulb counterclockwise and pull the it straight out from the socket.

4. Install a new bulb into the socket, turn it clockwise, and press it in until it is tight.

5. Reinstall the lens and the four screws.

    See also:

    How to Add Coolant to the Coolant Surge Tank for Gasoline Engines
    If the vehicle has a diesel engine, see “Cooling System” in the Duramax Diesel Supplement for the proper coolant fill procedure. WARNING You can be burned if you spill coolant on hot engine part ...

    Compass
    Your vehicle may have a compass in the Driver Information Center (DIC). See Driver Information Center (DIC) (Without DIC Buttons) on page 5‑30 or Driver Information Center (DIC) (With DIC Button ...

    Washing the Vehicle
    To preserve the vehicle's finish, wash it often and out of direct sunlight. Notice: Do not use petroleum based, acidic, or abrasive cleaning agents as they can damage the vehicle's paint, metal, or p ...