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:
Flash-to-Pass
The flash&-to&-pass feature works with the low beams or Daytime Running Lamps
(DRL) on or off.
To flash the high beams, pull the turn signal/lane change lever all the way toward
you, then ...
Glass Replacement
If the windshield or front side glass must be replaced, see your dealer to determine the correct replacement glass. ...
Using the “Delete” Command
1. Press and hold for two seconds.
2. Say “Delete.” 3. Say the name tag you want to delete. ...