Hill And Mountain Roads - GMC TopKick 2007 Owner's Manual

Hill and Mountain Roads

Driving on steep hills or mountains is different
from driving in flat or rolling terrain.
Here are some tips that can make your drive
through steep country safer:
•
Keep the vehicle in good shape. Check all
fluid levels and also the brakes, tires,
cooling system, and transmission. These parts
can work hard on mountain roads.
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CAUTION:
{
If you do not shift down, your brakes
could get so hot that they would not work
well. You would then have poor braking or
even none going down a hill. You could
crash. Shift down to let your engine assist
your brakes on a steep downhill slope.
CAUTION:
{
Coasting downhill in NEUTRAL (N) or with
the ignition off is dangerous. Your brakes
will have to do all the work of slowing
down. They could get so hot that they
would not work well. You would then have
poor braking or even none going down a
hill. You could crash. Always have your
engine running and your vehicle in gear
when you go downhill.