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:

    Steps for Determining Correct Load Limit
    1. Locate the statement “The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs” on your vehicle's placard. 2. Determine the combined weight of the driver and passengers ...

    Windows
    Turn the hand crank on each door to manually raise or lower the manual windows. ...

    Reading Lamps
    For vehicles with reading lamps, they are located on the overhead console. To turn on the reading lamps, press the button located next to each lamp. To turn them off, press the button again. The veh ...