2011 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 453

Vehicle Care 10-47 Replacement Bulbs Exterior Lamp Back-up Lamp Back-up Lamp* Cargo Lamp and Center High-Mounted Stoplamp (CHMSL) Fender Marker Lamp (If Equipped) High-Beam Headlamp Bulb Number 921LL 1156 Exterior Lamp Low-Beam Headlamp License Plate Lamp Sidemarker Lamp/ Stoplamp/Taillamp/ Turn Signal Lamp Stoplamp/Turn Signal Lamp/ Taillamp* * Chassis Cab Models Bulb Number H11 168 3047K Electrical System Electrical System Overload The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems. Fuses and circuit breakers protect power devices in the vehicle. Replace a bad fuse with a new one of the identical size and rating. 912LL W5WLL 9005 1157 For replacement bulbs not listed here, contact your dealer.