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:

    Manual Seats
    To adjust the seat: 1. Lift the bar to unlock the seat. 2. Slide the seat to the desired position and release the bar. 3. Try to move the seat back and forth to be sure the seat is locked in pl ...

    Dolly Towing (Front-Wheel&- Drive Vehicles)
    To tow the vehicle from the front with the rear wheels on the ground, do the following: 1. Put the front wheels on a dolly. 2. Move the shift lever to P (Park).. 3. Set the parking brake.. 4. ...

    Ignition Transmission Lock Check
    While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. • The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). †...