Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.
See also:
Unlock Feedback (Lights)
When on, the exterior lamps will flash when unlocking the vehicle with the
RKE transmitter.
Press the MENU/SELECT knob when Unlock Feedback (Lights) is highlighted.
Turn the knob to select Flash ...
Service Vehicle Messages
SERVICE A/C SYSTEM
This message displays when the
electronic sensors that control the
air conditioning and heating
systems are no longer working.
Have the climate control system
serviced by ...
Heated Mirrors
(Rear Window Defogger):
Press to heat the mirrors.
See “Rear Window Defogger” under Dual Automatic Climate Control System for
more information. ...