GMC Sierra Denali 2006, Owner'S Manual, Page: 237 / 438

•
As you are backing down the hill, put your left hand
on the steering wheel at the 12 o’clock position.
This way, you will be able to tell if the wheels are
straight and maneuver as you back down. It is
best that you back down the hill with the wheels
straight rather than in the left or right direction.
Turning the wheel too far to the left or right
will increase the possibility of a rollover.
Here are some things you must not do if you stall, or
are about to stall, when going up a hill.
•
Never attempt to prevent a stall by shifting into
NEUTRAL (N) to rev-up the engine and regain
forward momentum. This will not work. Your vehicle
will roll backwards very quickly and you could go
out of control.
Instead, apply the regular brake to stop the
vehicle. Then apply the parking brake. Shift to
REVERSE (R), release the parking brake,
and slowly back straight down.
•
Never attempt to turn around if you are about to
stall when going up a hill. If the hill is steep
enough to stall your vehicle, it is steep enough to
cause you to roll over if you turn around. If you
cannot make it up the hill, you must back straight
down the hill.
Q:
Suppose, after stalling, I try to back down
the hill and decide I just cannot do it. What
should I do?
A:
Set the parking brake, put the transmission in
PARK (P) and turn off the engine. Leave the
vehicle and go get some help. Exit on the uphill
side and stay clear of the path the vehicle would
take if it rolled downhill.
Driving Downhill
When off-roading takes you downhill, you will want to
consider a number of things:
•
How steep is the downhill? Will I be able to maintain
vehicle control?
•
What is the surface like? Smooth? Rough?
Slippery? Hard-packed dirt? Gravel?
•
Are there hidden surface obstacles? Ruts? Logs?
Boulders?
•
What is at the bottom of the hill? Is there a hidden
creek bank or even a river bottom with large rocks?
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