Electrical System
See also:
Tire Messages
TIRE PRESSURE LOW ADD AIR TO TIRE
On vehicles with the Tire Pressure Monitor System (TPMS), this message displays when the pressure in one or more of the vehicle's tires is low.
The low tire pressur ...
RELEASE PARK BRAKE
This message is displayed if the
electric parking brake is on while the
vehicle is in motion. Release it
before you attempt to drive. See
Parking Brake for
more information. ...
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push to try the
call again or try again after driving a
few miles into ...
