Hummer 2007 H3 - Manual (Page 357)

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.
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