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:

    Removing the Spare Tire and Tools
    To access the spare tire and tools: 1. Open the trunk. See Trunk . 2. Lift the load floor. A. Retainer Nut B. Tool Bag Tether C. Tool Bag D. Spare Tire 3. Turn the retainer nut (A) counter ...

    Three-Way Calling
    Three-way calling must be supported on the cell phone and enabled by the wireless service carrier. 1. While on a call, press . 2. Say “Three-way call.”. 3. Use the dial or call command to ...

    Air Vents
    Air Vents Use the louvers located on the air vents to change the direction of the airflow. Use the thumbwheels near the air vents to control the amount of airflow or to shut off the airflow. Oper ...