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.

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    Athletic design
    With a powerful front-end design, which hints at the GM 3.6L V-6 VVT engine underneath, the Acadia features athletic styling with a raked "GMC" grille and dual halogen projector headlamp ...

    Filling the Tank
    If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. WARNING Fuel vapor burns violently and a fuel fire can cause bad injuries. To help avoid injuries to you ...

    Power Foldaway
    1. Press (A) to fold the mirrors out to the driving position. 2. Press (B) to fold the mirrors in to the folded position. ...