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:
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 the vehicle has be ...
Recommended Fluids and Lubricants
...
Driving On Grades
Reduce speed and shift to a lower gear before
you start down a long or steep downgrade. If you
don’t shift down, you might have to use your
brakes so much that they would get hot and no
longer w ...
