All-Wheel Drive

When to Check Lubricant

It is not necessary to regularly check fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired.

How to Check Lubricant

To get an accurate

To get an accurate reading, the vehicle should be on a level surface.

If the level is below the bottom of the filler plug hole, located on the transfer case, you’ll need to add some lubricant. Add enough lubricant to raise the level to the bottom of the filler plug hole.

Use care not to overtighten the plug.

What to Use

To determine what kind of lubricant to use.

    See also:

    Recommended Fluids and Lubricants
    ...

    Automatic Dimming Mirror Operation
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    Roadside Assistance Program
    U.S.: 1-800-252-1112 TTY Users (U.S.): 1-888-889-2438 Canada: 1-800-268-6800 Mexico: 01-800-466-0818 As the owner of a new Buick, you are automatically enrolled in the Roadside Assistance prog ...