Hummer 2010 H3 Owner's Manual page 336

10-70 Vehicle Care
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).
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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. Raise the vehicle far
enough off the ground so there
is enough room for the spare tire
to clear the ground.
Rear Positions
Refer to the graphic above to
locate the placement of the jack
if the flat tire is on the rear of the
vehicle.