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:
Shutting the Engine Off After a Remote Start
To manually shut off the engine after
a remote start, do any of the
following:
- Press until the parking lamps
turn off.
- Turn on the hazard warning
flashers.
- Turn the ignition switch o ...
Radio Frequency Identification (RFID)
RFID technology is used in some vehicles for functions such as tire pressure
monitoring and ignition system security, as well as in connection with conveniences
such as key fobs for remote door lo ...
Turn Signals When Towing a Trailer
The turn signal indicators on the instrument panel flash whenever signaling
a turn or lane change.
Properly hooked up, the trailer lamps also flash, telling other drivers the
vehicle is turning, ...