Chevrolet 2009 Colorado, Owner'S Manual

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Driving Across an Incline
An off-road trail will probably go across the incline
of a hill. To decide whether to try to drive across the
incline, consider the following:
{
CAUTION:
Driving across an incline that is too steep will
make your vehicle roll over. You could be
seriously injured or killed. If you have any doubt
about the steepness of the incline, do not drive
across it. Find another route instead.
•
A hill that can be driven straight up or down might
be too steep to drive across. When going straight
up or down a hill, the length of the wheel base — the
distance from the front wheels to the rear
wheels — reduces the likelihood the vehicle
will tumble end over end. But when driving across
an incline, the narrower track width — the distance
between the left and right wheels — might not
prevent the vehicle from tilting and rolling over.
Driving across an incline puts more weight on the
downhill wheels which could cause a downhill slide
or a rollover.
•
Surface conditions can be a problem. Loose gravel,
muddy spots, or even wet grass can cause the
tires to slip sideways, downhill. If the vehicle slips
sideways, it can hit something that will trip it — a
rock, a rut, etc. — and roll over.
•
Hidden obstacles can make the steepness of the
incline even worse. If you drive across a rock with
the uphill wheels, or if the downhill wheels drop into
a rut or depression, the vehicle can tilt even more.
For these reasons, carefully consider whether to try to
drive across an incline. Just because the trail goes
across the incline does not mean you have to drive it.
The last vehicle to try it might have rolled over.
If you feel the vehicle starting to slide sideways, turn
downhill. This should help straighten out the vehicle
and prevent the side slipping. The best way to prevent
this is to “walk the course” first, so you know what
the surface is like before driving it.
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