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:

    Ignition Positions
    Use the key to turn the ignition switch to four different positions. A (LOCK): This position locks the ignition and transmission. It is a theft-deterrent feature. You will only be able to remo ...

    Winter Driving
    Here are some tips for winter driving: • Have your vehicle in good shape for winter. • You may want to put winter emergency supplies in your vehicle. Include an ice scraper, a small brush ...

    Dual Tone Multi-Frequency (DTMF) Tones
    The in-vehicle Bluetooth system can send numbers during a call. This is used when calling a menu-driven phone system. For Radio with CD: 1. Turn or press the TUNE/MENU knob and select Enter Number ...