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 ...

    Lap Belt
    This part is only for the lap belt. To learn how to wear a lap-shoulder belt, see Lap-Shoulder Belt. You vehicle may have a center seating position. When you sit in the center front seating positi ...

    Safety Locks
    The rear door safety locks prevent passengers from opening the rear doors from inside the vehicle. Press to activate the safety locks. The indicator light will illuminate. This switch also di ...