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:
Torque Lock
(Automatic Transmission)
Torque lock is when the weight
of the vehicle puts too much
force on the parking pawl in the
transmission. This happens when
parking on a hill and shifting the
transmission into P (Park) is ...
Retained Accessory Power (RAP)
These accessories can be used after the engine is turned off:
- Audio system (up to 10 minutes or driver door is opened).
- Power windows, sunroof (if equipped), and power outlets (up to 10 minu ...
Remote Control Buttons
POWER: Press to turn the Headrest DVD RSE system on and off.
SOURCE: Press to select between Monitor 3, Monitor 4, or AV INPUT. Any video
equipment connected to the AV inputs automatically overri ...