Underbody Maintenance

Use plain water to flush dirt and debris from the vehicle's underbody. Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop.

    See also:

    Power Liftgate Operation
    On vehicles with a power liftgate, the vehicle must be in P (Park) to use the power feature. The taillamps flash when the power liftgate moves. Notice: If you open the liftgate without checking f ...

    Store a Name Tag for Speed Dialing
    1. Push System responds: “OnStar ready.” 2. Say “Store.” System responds: “Please say the number you would like to store.” 3. Say the entire number without pausing. System responds: ...

    What Makes a Denali
    The changes from a regular Acadia to a Denali are obvious from the outside, and they make the Acadia Denali look more put together, as if it were sculpted from one piece of metal rather than glued ...