Rear Axle - Hummer 2008 H3 Owner's Manual

To disconnect the jumper cables from both vehicles, do
the following:
1. Disconnect the black negative (−) cable from the
vehicle that had the dead battery.
2. Disconnect the black negative (−) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the other
vehicle.
5. Return the positive (+) battery terminal cover to its
original position.

Rear Axle

When to Check and Change Lubricant
It is not necessary to regularly check rear axle 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 reading, the vehicle should be on a
level surface.
The proper level is from 0 to 3/8 inch (0 mm to 10 mm)
below the bottom of the filler plug hole, located on
the rear axle.
What to Use
See Recommended Fluids and Lubricants on page 6-12
to determine which kind of lubricant to use.
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