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:
Service Parts Identification Label
This label, located either in the glove box or the trunk area, has the following information:
► Vehicle Identification Number (VIN).
► Model designation.
► Paint information.
...
Footnotes — Maintenance
Schedule Additional Required
Services — Normal
a) Or every two years, whichever
comes first. More frequent
replacement may be needed if the
vehicle is driven in areas with heavy
traffic, areas with poor air quality,
or areas with high du ...
Rear Window Defogger
(Rear Window Defogger): Press to
turn the rear window defogger on or off.
The rear window defogger turns off automatically after about 10 minutes. If turned
on again it runs for about five minute ...