Hummer 2005 H2 - Manual (Page 393)

5. Turn the ratchet clockwise to raise the jack head to
the lifting point.
Front Flat Tire: Position
the jack under the vehicle
on the frame behind
the flat tire where the
frame sections overlap.
See the graphic following
for an approximate
measurement of the jack
location on the frame.
Front Flat Tire
X = 28.5 inches (72.0 cm)
5-81