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:

    Universal Home Remote SystemOperation (With Three Round LED)
    Your vehicle may have the Universal Home Remote System. If there are three round Light Emitting Diode (LED) above the Universal Home Remote System buttons, follow the instructions below. If th ...

    Automatic Dimming Feature
    The vehicle may have an automatic dimming driver outside mirror. Automatic dimming reduces the glare of the headlamps behind you. See Power Mirrors. ...

    Exterior Mirrors
    Controls for the outside power mirrors are located on the driver door armrest. 1. Press the left or right side of the selector switch located beneath the control pad to choose the driver or ...