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:

    Store a Name Tag for Speed Dialing
    1. Push System responds: “OnStar ready.” 2. Say “Store.” System responds: “Please say the number you would like to store.” 3. Say the entire number without pausing. System responds: ...

    Starting the Engine Using Remote Start
    To start the vehicle: 1. Aim the RKE transmitter at the vehicle. 2. Press and release on the RKE transmitter. 3. Immediately after completing Step 2, press and hold until the parking lamps flash. ...

    Climate Control System (With Air Conditioning)
    Climate Control System (With Air Conditioning) A. Fan Control B. Temperature Control C. Air Delivery Mode Control D. Air Conditioning E. Outside Air F. Air Recirculation G. Rear Window Defo ...