2010 GMC Sierra 1500 Service and Repair Manual

This factory service and repair manual for the 2010 GMC Sierra 1500 spans seven trims, Denali, Hybrid, SL, SLE, SLT, WT and XFE, and three cab lengths. Four of its five engines run flex fuel: the 325-cubic-inch 5.3L V8, the 294-cubic-inch 4.8L V8, the 376-cubic-inch 6.2L V8 and a full hybrid 364-cubic-inch 6.0L V8, with the 262-cubic-inch 4.3L V6 on gasoline. All five are naturally aspirated with overhead valves.

Engines covered

• 5.3L V8 (325 cu in) — OHV, naturally aspirated, flex-fuel
• 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
• 4.8L V8 (294 cu in) — OHV, naturally aspirated, flex-fuel
• 6.2L V8 (376 cu in) — OHV, naturally aspirated, flex-fuel
• 6.0L V8 full hybrid (364 cu in) — OHV, naturally aspirated, flex-fuel

Body styles covered

• 4-door crew cab pickup
• 4-door extended cab pickup
• 2-door standard cab pickup

Trims covered

• Denali
• Hybrid
• SL
• SLE
• SLT
• WT
• XFE

Known issues on the 2010 Sierra 1500. Owner complaints on this model year come to 217. The largest share, 86 of them, concerns the air bags, followed by 34 on the structure and 11 on the electrical system, which is to say the restraint hardware, the cab and bed, and the wiring that ties them together. Those systems are documented here the way the rest of the truck is, with removal and installation procedures, specifications, torque values, wiring diagrams and diagnostic routines covering all five engines, all three cab lengths and every trim from WT through Denali.