Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Backglass Antenna
The AM-FM antenna is integrated
with the rear window defogger,
located in the rear window.
Make sure that the inside surface of
the rear window is not scratched
and that the lines on the glas ...
Tips and Troubleshooting
IR Sensor Inoperative: Check that the batteries are good in the remote control.
Check that the remote Control IR Sensor is not blocked. Aim the remote control toward
the IR Sensor being controlled ...
Lockout Deterrent
Lockout deterrent decreases the chances that the keys may be accidentally
locked in the vehicle.
When door locking is requested by pressing on the instrument panel
or front door panels, or the RK ...