Hummer 2006 H3 - Manual (Page 229)

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 cannot
do. There are some hills that simply cannot be driven,
no matter how well built the vehicle.
{ CAUTION:
Many hills are simply too steep for any vehicle.
If you drive up them, you will stall. If you drive
down them, you cannot 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.
Approaching a Hill
When you approach a hill, you need to decide if
it is one of those hills that is just too steep to climb,
descend, or cross. Steepness can be hard to judge.
On a very small hill, for example, there may be a
smooth, constant incline with only a small change in
elevation where you can easily see all the way to
the top. On a large hill, the incline may get steeper as
you near the top, but you may not see this because the
crest of the hill is hidden by bushes, grass, or shrubs.
Here are some other things to consider as you
approach a hill:
• Is there a constant incline, or does the hill get
sharply steeper in places?
• Is there good traction on the hillside, or will the
surface cause tire slipping?
• Is there a straight path up or down the hill so you
will not have to make turning maneuvers?
• Are there obstructions on the hill that can block your
path, such as boulders, trees, logs, or ruts?
• What is beyond the hill? Is there a cliff, an
embankment, a drop-off, a fence? Get out and
walk the hill if you do not know. It is the smart way
to find out.
• Is the hill simply too rough? Steep hills often have
ruts, gullies, troughs and exposed rocks because
they are more susceptible to the effects of erosion.
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