Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception.
Cellular reception is required for OnStar to send remote signals to the vehicle.
See also:
When the System Does Not Seem
to Work Properly
Occasional missed alerts can
occur under normal circumstances
and will increase in wet conditions.
The system does not need to be
serviced due to an occasional
missed alert. The number of mis ...
High Intensity Discharge (HID) Lighting
WARNING
The low beam high intensity discharge lighting system operates at a very high
voltage.
If you try to service any of the system components, you could be seriously
injured. Have your dealer ...
Extending Engine Run Time
For a 10-minute extension, repeat Steps 1 and 2 while the engine is still
running. The remote start can only be extended once.
When the remote start is extended, the second 10-minute period will s ...