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:

    Engine Oil Change
    When the CHANGE ENGINE OIL SOON message displays, have the engine oil and filter changed within the next 1 000 km/600 mi. If driven under the best conditions, the engine oil life system might not ...

    Windows
    Press the switch to lower the window. Pull the switch up to raise it. For more information, see Power Windows on page 2‑21. ...

    Button Retainer
    Floor mats with a button-type retainer. Removing and Replacing the Floor Mat 1. Pull up on the rear of the mat to unlock and remove. 2. Reinstall the floor mat by lining up the floor mat openings ...