Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Engine Oil
For diesel engine vehicles, see “Engine Oil” in the Duramax Diesel Supplement.
To ensure proper engine performance and long life, careful attention must be paid to engine oil.
Following these si ...
Using the Outside Mirror with the Blind Spot Mirror
1. Set the main mirror so that the side of the vehicle can just be seen and the
blind spot mirror has an unobstructed view.
2. When checking for traffic or before changing a lane, look at the main ...
Replacement Bulbs
For replacement bulbs not listed here, contact your dealer. ...