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:

    Traction Control System (TCS) Warning Light
    For vehicles with a Traction Control System (TCS) and StabiliTrak® warning light, this light comes on briefly when the engine is started. If it does not, have the vehicle serviced by you ...

    Universal Remote System
    See Radio Frequency Statement for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310. ...

    Navigation System
    If the vehicle has a navigation system, use of the system may result in the storage of destinations, addresses, telephone numbers, and other trip information. Refer to the navigation system operating ...