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 an Advisor can run a check., and an Advisor can run a check.

    See also:

    Tips and Troubleshooting Chart
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    Convex Mirrors
    WARNING A convex mirror can make things, like other vehicles, look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on the right. Check ...

    Mirror Adjustment
    1. Press (A) or (B) to select the driver or passenger side mirror. 2. Press the arrows on the control pad to move the mirror up, down, right, or left. 3. Press the opposite side to get the control ...