2005 GMC Sierra 1500 Pickup Owner's Manual - Page 465

Taillamps (Chassis Cab Models) A. Turn Signal Lamp B. Stoplamp C. Back-up Lamp Replacement Bulbs Exterior Lamp Back-up Lamp Back-up Lamp* Cargo Lamp Center High-Mounted Stoplamp (CHMSL) Daytime Running Lamps (DRL) Fender Marker Lamps Front Parking and Turn Lamp Front Roof Marker Lamps Headlamps High-Beam Low-Beam Rear Marker Lamp, Taillamp and Stoplamp* Rear Turn Signal Lamp Rear Turn Signal Lamp* Sidemarker Lamp (If Equipped) Stoplamp and Taillamp* * Chassis Cab Models Bulb Number 3157 1156 912 912 4114K 194 3457A 194 9005 9006 3157 3157 1156 194 1157 To replace a taillamp bulb for chassis cab models, do the following: 1. Peel the rubber seal away from the lens using your hands. 2. Lift the lens off the lamp assembly. 3. Pull the old bulb straight out from the socket. 4. Put a new bulb into the socket and press it in until it is tight. 5. Reinstall the lens and the lens seal. For replacement bulbs not listed here, contact your dealer. 5-71