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:

    How to Change the Video Format when inthe Auxiliary Mode
    The auxiliary input video format is preset to NTSC. In some countries, the video format may be in the PAL system. To change the video format, perform the following: 1. Press the display menu b ...

    Power Outlets
    The accessory power outlets can be used to plug in electrical equipment, such as a cellular telephone. The vehicle may have up to three power outlets depending on the type of front seat installed ...

    Warning Lights, Gages, and Indicators
    Warning lights and gages can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gages could p ...