OnStar Services

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Before Driving Off-Road
Have all necessary maintenance and service work completed. Fuel the vehicle, fill fluid levels, and check inflation pressure in all tires, including the spare, if equipped. Read all the info ...

Anti-theft Alarm System
This vehicle has an anti-theft alarm system. The LED light, located on the instrument panel near the windshield, indicates the status of the system. Arming the System 1. Close all doors, lif ...

Engine Heater
The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine heater should ...