Hummer 2010 H3 Owner's Manual page 344

10-78 Vehicle Care
3. Turn the wheel wrench
counterclockwise to loosen the
wheel nuts. Do not remove
them yet.
If the vehicle has locking lug
nuts, the key is supplied in the
tool bag. Use the key along with
the wheel wrench to remove the
wheel nuts from the tire.
Now jack up the vehicle.
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Jacking Locations (Overall View)
A. Front Position - Lower
Control Arm
B. Rear Position - Lower Axle
4. Locate the vehicle's jacking
positions (A and B).
5. Assemble the jack and tools as
follows:
Front Position
Front Tire Flat: If the flat tire is
on a front tire of the vehicle, use
the jack handle and both jack
handle extensions. Attach the
wheel wrench to the jack handle
extensions. Attach the jack
handle to the jack. From the
front of the vehicle position the
jack on the front lower control
arm along the bar that runs front
to back. Turn the wheel wrench
clockwise to raise the vehicle.