OnStar Services

See also:

Automatic Operation
AUTO (Automatic): When automatic operation is active the system will control the inside temperature, the air delivery, and the fan speed. Use the steps below to place the entire system in automatic ...

Underbody Maintenance
Use plain water to flush dirt and debris from the vehicle's underbody. Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop. ...

Windshield Wiper/Washer
The windshield wiper lever is on the right side of the steering column. Sedan and Coupe Model shown Wagon Model shown Move the windshield wiper lever to select the wiper speed. : Use for ...