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:

    License Plate Lamp
    The license plate lamps for this vehicle are on the trunk lid. To replace one of these bulbs: 1. Open the trunk. See Trunk for more information. 2. Push the end on either of the lamp assembli ...

    Tire Pressure Monitor System
    The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your tires and transmit tire pressure readings to a ...

    Climate Controls
    The heating, cooling, and ventilation for the vehicle can be controlled with these systems. A. Air Conditioning B. Driver and Passenger Temperature Controls C. Heated Seats D. Air Deliv ...