GMC 2009 Envoy Denali Owner's Manual page 258

Avoid sharp turns and abrupt maneuvers. Failure to
operate the vehicle correctly off-road could result in loss
of vehicle control or vehicle rollover.
Off-roading involves some new skills. That is why it is
very important that you read these driving tips and
suggestions to help make off-road driving safer and
more enjoyable.
Before You Go Off-Roading
•
Have all necessary maintenance and service
work done.
•
Make sure there is enough fuel, that fluid levels are
where they should be, and that the spare tire, if the
vehicle has one, is fully inflated.
•
Be sure to read all the information about
four-wheel-drive vehicles in this manual.
•
Make sure all underbody shields, if the vehicle has
them, are properly attached.
•
Know the local laws that apply to off-roading where
you will be driving or check with law enforcement
people in the area.
•
Be sure to get the necessary permission if you will
be on private land.
4-14
Loading Your Vehicle for Off-Road
Driving
CAUTION:
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•
Cargo on the load floor piled higher than the
seatbacks can be thrown forward during a
sudden stop. You or your passengers could
be injured. Keep cargo below the top of the
seatbacks.
•
Unsecured cargo on the load floor can be
tossed about when driving over rough terrain.
You or your passengers can be struck by
flying objects. Secure the cargo properly.
•
Heavy loads on the roof raise the vehicle's
center of gravity, making it more likely to roll
over. You can be seriously or fatally injured if
the vehicle rolls over. Put heavy loads inside
the cargo area, not on the roof. Keep cargo in
the cargo area as far forward and low as
possible.