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:

    Outside Heated Mirrors
    When the rear window defogger is turned on, the driver’s and passenger’s outside rearview mirrors also heat to help clear them of ice, snow, and condensation. ...

    Wiper Blade Replacement
    Windshield wiper blades should be inspected for wear or cracking. See Scheduled Maintenance  for more information. It is a good idea to clean or replace the wiper blade assembly on a regular bas ...

    Safety Belts: They Are for Everyone
    This part of the manual tells you how to use safety belts properly. It also tells you some things you should not do with safety belts. CAUTION: Do not let anyone ride where he or she cannot wea ...