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 veh ...

OnStar Additional Information

Transferring Service Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle owne ...

See also:

Commandshift
If CommandShift™ is selected in high range, gears 1 or 2 may be used for moving off from stationary. In low range, gears 1, 2 or 3 may be used, which may prove useful in certain off-road driving ...

Hazard Warning Flashers
(Hazard Warning Flashers): Press this button located on top of the steering column, to make the front and rear turn signal lamps flash on and off. This warns others that you are having trouble. ...

DVD Error Messages
Player Error: This message displays when there are disc load or eject problems. Disc Format Error: This message displays if the disc is inserted with the disc label wrong side up, or if the disc is ...