2007 Hummer H2 Owners Manual PDF | Page 437

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 (+) remote terminal cover,
if equipped, to its original position.
Rear Axle
When to Check Lubricant
It is not necessary to regularly check rear axle
?uid unless you suspect there is a leak or you hear
an unusual noise. A ?uid loss could indicate a
problem. Have it inspected and repaired.
All axle assemblies are ?lled by volume of ?uid
during production. They are not ?lled to reach
a certain level. When checking the ?uid level on
any axle, variations in the readings can be caused
by factory ?ll differences between the minimum
and the maximum ?uid volume. Also, if a vehicle
has just been driven before checking the ?uid
level, it may appear lower than normal because
?uid has traveled out along the axle tubes and has
not drained back to the sump area. Therefore, a
reading taken ?ve minutes after the vehicle
has been driven will appear to have a lower ?uid
level than a vehicle that has been stationary
for an hour or two. Remember that the rear axle
assembly must be supported to get a true reading.
437

Summary of Content

To disconnect the jumper cables from bothvehicles do the following:1. Disconnect the black negative () cable fromthe vehicle that had the dead battery.2. Disconnect the black negative () cable fromthe vehicle with the good battery.3. Disconnect the red positive (+) cable from thevehicle with the good battery.4. Disconnect the red positive (+) cable from theother vehicle.5. Return the positive (+) remote terminal cover,if equipped, to its original position.Rear AxleWhen to Check LubricantIt is not necessary to regularly check rear axleuid unless you suspect there is a leak or you hearan unusual noise. A uid loss could indicate aproblem. Have it inspected and repaired.All axle assemblies are lled by volume of uidduring production. They are not lled to reacha certain level. When checking the uid level onany axle, variations in the readings can be causedby factory ll differences between the minimumand the maximum uid volume. Also, if a vehiclehas just been driven before checking the uidlevel, it may appear lower than normal becauseuid has traveled out along the axle tubes and hasnot drained back to the sump area. Therefore, areading taken ve minutes after the vehiclehas been driven will appear to have a lower uidlevel than a vehicle that has been stationaryfor an hour or two. Remember that the rear axleassembly must be supported to get a true reading.437