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:

    How to Check Lubricant
    To get an accurate reading, the vehicle should be on a level surface. 1500 Series A. Fill Plug B. Drain Plug All Except 1500 Series A. Fill Plug B. Drain Plug • When the differential is c ...

    Reprogramming Universal Home Remote Buttons
    Any of the three buttons can be reprogrammed by repeating the instructions. ...

    Battery
    Refer to the replacement number on the original battery label when a new battery is needed. WARNING Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known ...