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:
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can
be obtained from your dealer.
...
Auto Door Lock
This feature allows you to select
when the vehicle's doors will
automatically lock. See Automatic
Door Locks for more
information.
Press the customization button until
Auto Door Lock appear ...
Blizzard Conditions
Being stuck in snow can be a
serious situation. Stay with the
vehicle unless there is help nearby.
If possible, use the Roadside
Service (U.S. and Canada) or Roadside Service
(Mexico).
To ge ...