2011 GMC Sierra 1500 Hybrid Review

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Active Fuel Management®
Vehicles with V8 engines may have Active Fuel Managementâ„¢. This system allows the engine to operate on either all or half of its cylinders, depending on the driving conditions. When less power is r ...

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. • The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). †...

Selecting the Right Engine Oil
Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants on page 11‑12. Specification Use and ask for licensed en ...