OnStar Services

See also:

Antilock Brake System (ABS) Warning Light
The Antilock Brake System (ABS) light comes on briefly when the engine is started. If the light does not come on, have it fixed so it will be ready to warn if there is a problem. If the ABS light ...

Turn-by-Turn Navigation
1. Push to connect to a live Advisor. 2. Request directions. 3. Directions are downloaded to the vehicle. 4. Follow the voice-guided commands. ...

Engine Heater
The engine heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug in the heater at least ...