GMC Sierra Owners Manuals

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Auxiliary Battery
The auxiliary battery provision can be used to supply electrical power to additional equipment that may be added, such as a slide-in camper. If the vehicle has this provision, this relay will be loca ...

Wheel Alignment
Wheel alignment is critical for ensuring that the tires deliver optimal wear and performance. • Signs that the alignment may need to be adjusted include pulling, improper vehicle handling, or unusu ...

How to Add Coolant to the Recovery Tank
WARNING You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. Notic ...