GMC Sierra Quiz
Vehicle Care

Taillamps (Chassis Cab Models)

In this manual: Vehicle Care
Introduction — 6In Brief — 46Seats and Restraints — 48Storage — 7Instruments and Controls — 75Lighting — 22Infotainment System — 22Climate Controls — 7Driving and Operating — 77Vehicle Care — 79Service and Maintenance — 26Technical Data — 8Customer Information — 25OnStar — 25Keys, Doors, and Windows — 38
~1min read
GMS Sierra: Taillamps (Chassis Cab Models). A. Backup 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.

Test yourself

A quick GMC Sierra quiz: every answer comes with an explanation and a link to the manual page.