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 OnStar Additional Information , and an Advisor can run a check.

    See also:

    Dome Lamps
    Dome Lamps The interior lamps control located in the overhead console controls both the front and rear interior lamps. To operate: (Off): Turns the lamps off. (Door): Turns the lamps on ...

    Rear Window Lockout
    This feature prevents the rear passenger windows from operating, except from the driver position. The rear door locks will also be disabled and only operate from the driver door. This feature on ...

    Weight of the Trailer
    How heavy can a trailer safely be? For a vehicle with a V6 engine, it should never weigh more than 454 kg (1,000 lbs). But even that can be too heavy. It depends on how the rig is used. For e ...