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:

    Hazard Warning Flashers
    The hazard warning flashers warn others. They also let police know you have a problem. Your front and rear turn signal lamps will flash on and off. The hazard warning flasher button is loca ...

    Engine Coolant Temperature Gauge
    English Shown, Metric Similar This gauge shows the engine coolant temperature. If the indicator needle moves to the hot side of the gauge toward the shaded area, the engine is too hot. If the v ...

    Ignition Positions (Key Access)
    Ignition Positions (Key Access) The ignition switch has four different positions. Notice: Using a tool to force the key to turn in the ignition could cause damage to the switch or break t ...