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:

    Automatic Operation
    AUTO (Automatic Fan): When AUTO is selected on the fan control, the system automatically adjusts the fan speed. If the OnStar® system is activated when this position is selected, the fan speed ...

    Safety Belt Pretensioners
    Your vehicle has safety belt pretensioners for the driver and right front passenger. Although you cannot see them, they are part of the safety belt assembly. They help tighten the safety belts in ...

    Sunroof
    Sunroof On vehicles with a sunroof, the switches are located on the overhead console. The ignition must be in ON/RUN or ACC/ACCESSORY, or in Retained Accessory Power (RAP). See Retained ...