2010 Chevrolet Silverado 1500 Crew Cab Owner's Manual - Page 506

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. Replacement Bulbs Exterior Lamp Back-up Lamp Back-up Lamp* Cargo Lamp and Center High-Mounted Stoplamp (CHMSL) Fender Marker Lamp High-Beam Headlamp Low-Beam Headlamp License Plate Lamp Sidemarker Lamp/Stoplamp/Taillamp/ Turn Signal Lamp Stoplamp/Turn Signal Lamp/Taillamp* * Chassis Cab Models Bulb Number 3047 or 921 1156 912 W5WLL 9005 H11 168 3047 1157 License Plate Lamp To replace one of these bulbs: 1. Reach under the rear bumper for the bulb socket. For replacement bulbs not listed here, contact your dealer/retailer. 2. Turn the bulb socket counterclockwise and pull the bulb socket out of the connector. 3. Pull the old bulb from the bulb socket, keeping the bulb straight as you pull it out. 4. Install the new bulb. 5. Reverse Steps 1 through 3 to reinstall the bulb socket. 6-62