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:

    Playing a DVD
    DVD/CD AUX (Auxiliary): Press to cycle through DVD, CD, or Auxiliary when listening to the radio. The DVD/CD text tab and a message showing the track or chapter number will display when a disc is in e ...

    Folding Mirrors
    Vehicles with outside power foldaway mirrors have controls on the driver door. ...

    Hitches
    The correct hitch equipment helps maintain combination control. Many trailers can be towed with a weight-carrying hitch which simply features a coupler latched to the hitch ball, or a tow eye latched ...