OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview  ...

Keys and Locks

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See also:

Spark plugs
WARNING Be sure the engine and the ignition switch are off and that the parking brake is engaged securely. CAUTION Be sure to use the correct socket to remove the spark plugs. An incorre ...

Jump Starting
For more information about the vehicle battery, see Battery  . If the vehicle is a hybrid, see the hybrid supplement for more information. If the vehicle's battery has run down, you may wan ...

Tow/Haul Mode
The vehicle has a Tow/Haul Mode. The Tow/Haul Mode adjusts the transmission shift pattern to reduce shift cycling, providing increased performance, vehicle control, and transmission cooling when d ...