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:
Adjustable Throttle and Brake Pedal
The vehicle has adjustable throttle and brake pedals that allow you to change
their positions.
The feature will not operate when the vehicle is in R (Reverse) or while using
the cruise control.
...
Competitive Driving
Competitive driving may affect the
vehicle warranty. See the warranty
book before using the vehicle for
competitive driving.
Notice: If you use your vehicle
for competitive driving, the
eng ...
Heated Mirrors
(Rear Window Defogger):
Press to heat the mirrors.
See “Rear Window Defogger” under Dual Automatic Climate Control System for
more information. ...