1996 GMC SIERRA Owners Manual

Am I likely to stall when going downhill?
A: It’s much more likely to happen going uphill. But
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if it happens going downhill, here’s what to do.
Stop your vehicle by applying the regular brakes.
Apply
the parking brake.
Shift
to PARK (P) (or to NEUTRAL (N) with the
manual transmission) and, while still braking, restart
the engine.
Shift back
to a low gear, release the parking brake,
and drive straight down.
If the engine won’t start, get out and get help.
Driving Across an Incline
Sooner or later, an off-road trail will probably go across
the
incline of a hill. If this happens, you have to decide
whether to try
to drive across the incline. Here are some
things
to consider:
0 A hill that can be driven straight up or down may be
too steep
to drive across. When you go 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 you drive across an incline, the
much more narrow track width (the distance between
the
left and right wheels) may not prevent the vehicle
from tilting and rolling over. Also, driving across an
incline puts more weight
on the downhill wheels.
This could cause
a downhill slide or a rollover.
0 Surface conditions can be a problem when you drive
across a
hill. Loose gravel, muddy spots, or even wet
grass can cause your 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.
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@ 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, your vehicle can tilt even more.
For reasons like these,
you need to decide carefully
whether to try
to drive across an incline. Just because
the trail goes across
the incline doesn’t mean you
have to drive
it. The last vehicle to try it might have
rolled over.
Q.’ What if I’m driving across an incline that’s not
too steep, but I hit some loose gravel and start to
slide downhill. What should
I do?
A: If you feel your vehicle starting to slide sideways,
turn downhill.
This should help straighten out the
vehicle and prevent the side slipping. However, a
much better way to prevent this
is to get out and
“walk the course”
so you know what the surface is
like before you drive
it.
1 A CAUTION: r: .. -. :. *. -
Driving across an incline that’s 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, don’t drive
across it. Find another route instead.
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Stalling on an Incline
If your vehicle stalls when you're crossing an incline, be
sure you (and your passengers) get out on the uphill
side, even
if the door there is harder to open. If you get
out on
the downhill side and the vehicle starts to roll
over, you'll be right in its path.
If you have to walk down the slope. stay out of the path
the vehicle will take
if it does roll over.
Getting out on the downhill (low) side of a vehicle
stopped across an incline is dangerous.
If the
vehicle rolls over, you could be crushed or killed.
Always get out on the uphill (high) side
of the
' vehicle and stay well clear of the rollover path.
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Driving in Mud, Sand, Snow or Ice
When you drive in mud, snow or sand, your wheels
won’t get good traction.
You can’t accelerate as
quickly, turning
is more difficult, and you’ll need
longer braking distances.
It’s best to
use a low gear when you’re in mud -- the
deeper the mud, the lower the gear. In really deep mud,
the idea is to keep your vehicle moving so you don’t
get stuck.
When
you drive on sand, you’ll sense a change in wheel
traction. But
it will depend upon how loosely packed the
sand is. On loosely packed sand (as on beaches or sand
dunes) your tires will tend
to sink into the sand. This has
an effect on steering, accelerating and braking. You may
want t.o reduce the air pressure in your tires slightly
when driving
on sand. This will improve traction. Hard
packed snow and ice offer the worst tire traction.
On these surfaces, it’s very easy
to lose control. On wet
ice, for example, the traction is so poor that you will
have difficulty accelerating. And if you do get moving,
poor steering and difficult braking can cause
you to slide
out of control.
Driving on frozen lakes, ponds or rivers can be
dangerous. Underwater springs, currents under
the ice, or sudden thaws can weaken the ice. Your
vehicle could fall through the ice and you and
your passengers could drown. Drive your vehicle
on safe surfaces only.
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Driving in Water
Light rain causes no special off-road driving problems.
But heavy rain can mean flash flooding, and flood
waters demand extreme caution.
Find out how deep the water
is before you drive through
it.
If it’s deep enough to cover your wheel hubs, axles or
exhaust pipe, don’t try
it -- you probably won’t get
through. Also, water that deep can damage your axle
and other vehicle parts.
If the water isn’t too deep, then drive through it
slowly. At fast speeds, water splashes on your ignition
system and your vehicle can stall. Stalling can also
occur
if you get your tailpipe under water. And, as
long as your tailpipe
is under water, you’ll never be
able to start your engine. When you go through water,
remember that when your brakes get wet,
it may take
you longer
to stop. Driving mrough rushing water can be dangerous.
Deep water can sweep your vehicle downstream
and you and your passengers could drown.
If it’s
only shallow water, it can still wash away the
ground from under your tires, and you could lose
traction and roll the vehicle over. Don’t drive
through rushing water.
See “Driving Through Water” in the Index for more
information on driving through water.
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Dr g at I
Remove any brush or debris that has collected on the
underbody, chassis or under the hood. These
accumulations can be a fire hazard.
After operation
in mud or sand, have the brake linings
cleaned
and checked. These substances can cause
glazing and uneven braking. Check the body structure,
steering, suspension, wheels, tires and exhaust system
for damage. Also, check the fuel lines and cooling
system for any leakage.
Your vehicle
will require more frequent service due to
off-road use. Refer
to the Maintenance Schedule for
additional information.
Night driving
is more dangerous than day driving.
One reason
is that some drivers are likely to be
impaired
-- by alcohol or drugs, with night vision
problems, or by fatigue.
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Here are some tips on night driving.
0 Drive defensively.
0 Don’t drink and drive.
0 Adjust your inside rearview mirror to reduce the
glare from he.adlamps behind
you.
0 Since you can’t see as well, you may need to
slow down and keep more space between you
and other vehicles.
Slow down, especially on higher speed roads. Your
headlamps can light
up only so much road ahead.
0 In remote areas, watch for animals.
0 If you’re tired, pull off the road in a safe place
and rest.
ght Vis- -
No one can see as well at night as in the daytime. But as
we get older these differences increase. A 50-year-old
driver may require at least twice as much light
to see the
same thing at night
as a 20-year-old.
What you
do in the daytime can also affect your night
vision. For example,
if you spend the day in bright
sunshine you are wise to wear sunglasses.
Your eyes will have less trouble
adjusting
to night. But if you’re
driving, don’t wear sunglasses at night. They may cut
down on glare from headlamps, but they also make a lot
of things invisible.
You can be temporarily blinded by approaching
headlamps. It can take
a second or two, or even several
seconds, for your eyes
to readjust to the dark. When you
are faced with severe glare (as from a driver who
doesn’t lower the high beams,
or a vehicle with
misaimed headlamps), slow down
a little. Avoid staring
directly
into the approaching headlamps.
Keep your windshield and all the glass on your vehicle
clean
-- inside and out. Glare at night is made much
worse by dirt on the glass. Even
the inside of the glass
can build up
a film caused by dust. Dirty glass makes
lights dazzle and flash more than clean glass would,
making the pupils
of your eyes contract repeatedly.
Remember that your headlamps light
up far less of a
roadway when
you are in a turn or curve. Keep your
eyes moving; that way, it’s easier
to pick out dimly
lighted objects. Just as your headlamps should
be
checked regularly for proper aim, so should your eyes
be examined regularly. Some drivers suffer from night
blindness
-- the inability to see in dim light -- and aren’t
even aware
of it.
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Driving in Rain and on Wet Roads Rain and wet roads can mean driving trouble. On a wet
road, you can’t stop, accelerate or turn as well because
your tire-to-road traction isn’t as good as on dry roads.
And,
if your tires don’t have much tread left, you’ll get
even less traction.
It’s always wise to go slower and be
cautious
if rain starts to fall while you are driving. The
surface may get wet suddenly when your reflexes are
tuned for driving
on dry pavement.
The heavier the rain, the harder
it is to see. Even if’ your
windshield wiper blades are
in good shape, a heavy rain
can make
it harder to see road signs and traffic signals,
pavement markings, the edge
of the road and even
people walking.
It’s wise to keep your wiping equipment in good shape
and keep your windshield washer tank filled with
washer fluid. Replace your windshield wiper inserts
when they show signs
of streaking or missing areas on
the windshield, or when strips of rubber start to separate
from the inserts.
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