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:

    Vehicle Personalization
    The audio system controls are used to access the personalization menus for customizing vehicle features. CONFIG (Configuration): Press to access the Configuration Settings menu. Menu Knob: ...

    Muting a Call
    To Mute a Call Turn the Menu knob to select Mute Call, then press SELECT. To Cancel Mute Turn the Menu knob to select Mute Call, then press SELECT. ...

    Mirror Adjustment
    Exterior Mirrors Controls for the outside power mirrors are located on the driver door. 1. Turn the control knob to the L (left) or R (right) selecting the driver or passenger mirror. 2. Push the ...