OnStar Services

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Jump Starting
For more information about the vehicle battery, see Battery on page 10‑31. If the vehicle is a hybrid, see the hybrid supplement for more information. If the vehicle's battery (or batteries) h ...

General Information
Your vehicle is an important investment. This section describes the required maintenance for the vehicle. Follow this schedule to help protect against major repair expenses resulting from neglect ...

Running the Vehicle While Parked
It is better not to park with the engine running. But if you ever have to, here are some things to know. WARNING Idling a vehicle in an enclosed area with poor ventilation is dangerous. Engine exhau ...