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:
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems. It also
checks the tire pressures, if the v ...
Folding Mirrors
Manual
Vehicles with manual fold mirrors
are folded inward toward the vehicle
to prevent damage when going
through an automatic car wash.
Push the mirror outward, to return it
to the origina ...
Warning Lights, Gauges, and Indicators
WARNING lights and gauges can signal that something is wrong before it becomes
serious enough to cause an expensive repair or replacement. Paying attention to
the warning lights and gauges co ...