Downloaded from www.Manualslib.com manuals search engine Approaching a Hill
When you approach a hill, you need to decide if it’s one of those hills that’s
just too steep to climb, descend, or cross. Steepness can be hard to judge.
On a very small hill, for example, there may be a smooth, constant incline
with only a small change in elevation where you can easily see all the way
to the top. On a large hill, the incline may get steeper as you near the top,
but you may not see this because the crest of the hill is hidden by bushes,
grass, or shrubs.
Here are some other things to consider as you approach a hill.
Is there a constant incline, or does the hill get sharply steeper in places?
Is there good traction on the hillside, or will the surface cause tire
slipping?
Is there a straight path up or down the hill so you won’t have to make
turning maneuvers?
Are there obstructions on the hill that can block your path (boulders,
trees, logs or ruts)?
What’s beyond the hill? Is there a cliff, an embankment, a drop-off, a
fence? Get out and walk the hill if you don’t know. It’s the smart way
to
find out.
Is the hill simply too rough? Steep hills often have ruts, gullies, troughs
and exposed rocks because they are more susceptible to the effects
of
erosion.
Driving Uphill
Once you decide you can safely drive up the hill, you need to take some
special steps.
Use a low gear and get a firm grip on the steering wheel.
Get a smooth start up the hill and try to maintain your speed. Don’t use
more power than you need, because you don’t want your wheels to start
spinning or sliding.
turns, you might want to find another route.
0 Try to drive straight up the hill if at all possible. If the path twists and
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Downloaded from www.Manualslib.com manuals search engine Ease up on your speed as you approach the top of the hill.
Attach a flag to the vehicle to make you more visible to approaching
traffic
on trails or hills.
0 Sound the horn as you approach the top of the hill to let opposing
traffic know you’re there.
Use your headlights even during the day. They make you more visible
to oncoming traffic.
Q: What should I do if my vehicle stalls, or is about to stall, and I
can’t 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’s what
you should do:
Push the brake pedal to stop the vehicle and keep it from rolling
backwards. Also, apply the parking brake.
If your engine is still running, shift the transmission into reverse,
release the parking brake, and slowly back down the hill in reverse.
If your engine has stopped running, you’ll need to restart it. With the
brake pedal depressed and the parking brake still applied, shift the
transmission to PARK (P) (or, shift to NEUTRAL
(N) if your vehicle
has a manual transmission) and restart the engine. Then, shift to
reverse, release the parking brake, and slowly back down the hill as
straight as possible
in reverse.
As you are backing down the hill, put your left hand on the steering
wheel at the
12 o’clock position. This way, you’ll be able to tell if your
wheels are straight and maneuver as
you back down. It’s best that you
back down the hill with your 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.
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Downloaded from www.Manualslib.com manuals search engine Driving Downhill
When off-roading takes you downhill, you’ll want to consider a number of
things:
0 How steep is the downhill? Will I be able to maintain vehicle control?
0 What’s the surface like? Smooth? Rough? Slippery? Hard-packed dirt?
Gravel?
Are there hidden surface obstacles? Ruts? Logs? Boulders?
What’s at the bottom of the hill? Is there a hidden creek bank or even a
river bottom with large rocks?
If
you decide you can go down a hill safely, then try to keep your vehicle
headed straight down, and use
a low gear. This way, engine drag can help
your brakes and they won’t have
to do all the work. Descend slowly,
keeping your vehicle under control at all times.
Q: Are there some things I should not do when driving down a hill?
A: Yes! These are important because if you ignore them you could lose
control and have a serious accident.
0 When driving downhill, avoid turns that take you across the incline of
the hill. A hill that’s not too steep to drive down may be too steep to
drive across. You could roll over if you don’t drive straight down.
0 Never go downhill with the transmission in NEUTRAL (N), or with
the clutch pedal depressed in a manual shift. This is called
“free-wheeling.” Your brakes will have
to do all the work and could
overheat and fade.
Unless you have four-wheel anti-lock: Avoid braking so hard that you
lock the front wheels when going downhill. If your front wheels are
locked, you can’t steer your vehicle.
If your wheels lock up during
downhill braking, you may feel the vehicle starting
to slide sideways.
To regain your direction, just ease off
the brakes and steer to keep the
front of the vehicle pointing straight downhill.
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Downloaded from www.Manualslib.com manuals search engine Q: Am I likely to stall when going downhill?
A: It’s much more likely to happen going uphill. But 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 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.
0 If the engine won’t start, get out and get help.
Driving Across an lncline
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:
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.
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.
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.
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Downloaded from www.Manualslib.com manuals search engine 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 6fi Sad, 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 to 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 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 fwt 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.
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Downloaded from www.Manualslib.com manuals search engine Driving through rushing water can be dangerous. Deep water can sweep your vehicle downstream and you and your
passengers
could drown. If it’s only inches deep, it can still wash
away the ground from under your tires, and you could lose
traction and roll the vehicle over. Ron’t drive through rush\
ing water.
After Off-Road Driving
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.
Driving at Night
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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Downloaded from www.Manualslib.com manuals search engine The exit ramp can be curved, sometimes quite sharply.
The
exit speed is usually posted.
Reduce your speed according to your speedometer, not
to your sense of
motion. After driving for any distance at higher speeds, you may tend to
think you are going slower than you actually are.
Before Leaving on a Long Trip
Make sure you’re ready. Try to be well rested. If you must start when you’re
not fresh
- such as after a day’s work - don’t plan to make too many
miles that first part of the journey. Wear comfortable clothing and shoes you
can easily drive
in.
Is your vehicle ready for a long trip? If you keep it serviced and maintained,
it’s ready to
go. If it needs service, have it done before starting out. Of
course, you’ll find experienced and able service experts in GM dealerships
all across North America. They’ll be ready and willing to help if you need
it.
Here are some things you can check before a trip:
Windshield Washer Fluid: Is the reservoir full? Are all windows clean
inside and outside?
Wiper Blades: Are they in good shape?
Fuel, Engine Oil, Other Fluids: Have you checked all levels?
Lights: Are they all working? Are the lenses clean?
0 Tires: They are vitally important to a safe, trouble-free trip. Is the tread
good enough for long-distance driving? Are the tires all inflated to the
recommended pressure?
Weather Forecasts: What’s the weather outlook along your route?
Maps: Do you have up-to-date maps?
Should
you delay your trip a short time to avoid a major storm system?
Highway Hypnosis
Is there actually such a condition as “highway hypnosis”? Or is it just plain
falling asleep at the wheel? Call it highway hypnosis, lack of awareness, or
whatever.
There
is something about an easy stretch of road with the same scenery,
along with the hum of the tires on the road,
the drone of the engine, and the
rush of the wind against the vehicle that can make you sleepy. Don’t let it
happen to you! If it does, your vehicle can leave the road in
less than a
second,
and you could crash and be injured.
What can you
do about highway hypnosis? First, be aware that it can
happen.
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Downloaded from www.Manualslib.com manuals search engine Include an ice scraper, a small brush or broom, a supply of windshield
washer fluid, a rag, some winter outer clothing, a small shovel, a flashlight,
a red cloth, and a couple
of reflective warning triangles. And, if you will be
driving under severe conditions, include a small bag of sand, a piece of old
carpet
or a couple of burlap bags to help provide traction. Be sure you
properly secure these items in your vehicle.
Driving on Snow or Ice
Most of the time, those places where your tires meet the road probably have
good traction.
However, if there is snow
or ice between your tires and the road, you can
have a very slippery situation. You’ll have a lot less traction or “grip” and
will need to be very careful.
What’s the worst time for this? “Wet ice.” Very cold snow or ice can
be
slick and hard to drive on. But wet ice can be even more trouble because it
may offer the least traction
of all. You can get “wet ice” when it’s about
freezing
(32 OF; OOC) and freezing rain begins to fall. Try to avoid driving
on wet ice until salt and sand crews can get there.
Whatever the condition
- smooth ice, packed, blowing or loose snow -
drive with caution.
Accelerate gently. Try not to break the fragile traction.
If you accelerate too
fast,
the drive wheels will spin and polish the surface under the tires even
more.
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