Chevrolet 2007 TrailBlazer Owner's Manua page 331

Q:
What should I do if my vehicle stalls,
or is about to stall, and I cannot make
it up the hill?
A:
If this happens, there are some things you
should do, and there are some things you
must not do. First, here is what you should do:
•
Push the brake pedal to stop the vehicle
and keep it from rolling backwards. Also,
apply the parking brake.
•
If the engine is still running, shift the
transmission to REVERSE (R), release
the parking brake, and slowly back down
the hill in REVERSE (R).
•
If the engine has stopped running, you will need
to restart it. With the brake pedal pressed and
the parking brake still applied, shift the
transmission to PARK (P) and restart the
engine. Then, shift to REVERSE (R), release
the parking brake, and slowly back down the hill
as straight as possible in REVERSE (R).
•
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.
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