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:
Courtesy Lamps
When any door is opened, several lamps turn on
making it easier for you to enter and exit the vehicle.
Turn the instrument panel brightness control completely
clockwise to manually turn on these ...
Winter Tires
Consider installing winter tires on the vehicle if frequent driving on snow or
ice covered roads is expected. All season tires provide good overall performance
on most surfaces, but they may not o ...
Checking Brake Fluid
You can check the brake fluid without taking off
the cap.
Look at the brake fluid
reservoir. The fluid level
should be above
MIN. If it is not, have
your brake system
checked to see if there
...