Hummer 2007 H3 - Manual (Page 261)

• 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.
Driving Uphill
Once you decide you can safely drive up the hill,
you need to take some special steps:
• Use transmission and transfer case low gear
and get a firm grip on the steering wheel.
• Get a smooth start up the hill and try to
maintain your speed. Do not use more power
than you need, because you do not want
your wheels to start spinning or sliding.
• Let the traction system work to control any
wheel slippage. The traction control system
allows for moderate wheel spin with some
capability to dig in and power up the hill.
• Do not continue if the vehicle shudders or
exhibits suspension hopping. This can
cause damage to the driveline or suspension
components. Improper driving technique is
not covered by your vehicle warranty.
• Try to drive straight up the hill if at all possible.
If the path twists and turns, you might want
to find another route.
{ CAUTION:
Turning or driving across steep hills can
be dangerous. You could lose traction,
slide sideways, and possibly roll over.
You could be seriously injured or killed.
When driving up hills, always try to go
straight up.
• Ease up on your speed as you approach the
top of the hill.
• Attach a flag to the vehicle to make you more
visible to approaching traffic on trails or hills.
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