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

    See also:

    How to Wear Safety Belts Properly
    This section is only for people of adult size. Be aware that there are special things to know about safety belts and children. And there are different rules for smaller children and infants. If a chi ...

    Power 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 control knob to t ...

    Front Fog Lamp Light
    For vehicles with fog lamps, this light comes on when the fog lamps are in use. The light goes out when the fog lamps are turned off. See Fog Lamps  for more information. ...