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:
General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:
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Driving On Grades
Reduce speed and shift to a lower gear before starting down a
long or steep downgrade. If the transmission is not shifted down, the brakes might
have to be used so much that they would get hot and ...
Lock Sensor
Lock Sensor
When all doors are closed and the
ignition is off, the vehicle can be
locked by pressing this area on the
door handle. This feature will be
available for several minutes after
...