Driving On Off-Road Hills - Hummer H2 2004 Owner's Manual

Log Crossing. Using the proper technique, the
HUMMER H2 will cross logs up to 10 inches (25.4 cm)
in diameter. Approach the log at approximately a
15° angle (A) with the transmission in FIRST (1) and
the transfer case in 4LO LOCK and "walk" the
HUMMER H2 over, one tire at a time. As with all
obstacles, face your tires perpendicular to the object for
best traction and tire life. It may be necessary to
modulate your brake pedal and accelerator to avoid
spin-out. Ease the vehicle down from the log with
your brake.
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Driving on Off-Road Hills

Off-road driving often takes you up, down or across a
hill. Driving safely on hills requires good judgment
and an understanding of what your vehicle can and can
not do. There are some hills that simply can not be
driven, no matter how well built the vehicle.
CAUTION:
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Many hills are simply too steep for any vehicle.
If you drive up them, you will stall. If you drive
down them, you can not control your speed. If
you drive across them, you will roll over. You
could be seriously injured or killed. If you have
any doubt about the steepness, do not drive
the hill.