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:
Replacement Bulbs
For replacement bulbs not listed here, contact your dealer. ...
Rear Window Wiper/Washer
The rear wiper controls are on the end of the windshield wiper lever.
ON: Press the upper portion of the button for continuous rear window wipes.
OFF: The rear wiper turns off when the button is r ...
Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire sidewall between tread
shoulder and maximum section width. For example: ...