1997 GMC JIMMY brake

Q.' Am I likely to stall when going downhill?
A: It's nl~lch mo~x likely to happen going ~~phill. But if
it happens going downhill, here's whut to do.
Stop your vehicle by applying the reg~11;~I brakes.
Shift to PARK (P) (or to NEUTRAL (N) with the
Apply the
parking brake.
manual transmission) and, while still braking. restart
the engine.
and drive straight
down.
Shif't back to a low gear, release the parking brake.
if the engine won't start, get out md gct help.
Driving Across an Incline
Sooner or later, an off-road trail will probably go m-oss
the incline of a hill. if this happens, yo^^ have to decide
whether to try to drive across the inc!int.. Here are some
things to consider:
A hill that can be driven straight up 01- down may be
too steep to drive across. When you go straight LIP or
down a hill, the length of the wheel base (the
distance from the front wheels to the I-car whecls)
reduces the likelihood
the vehic!e will tumble cnd
over end.
But wlwn you drive i~cross an incline. the
much more narrow track width (the distance bctwee1l
the left and right wheels) nay not prevent the vehicle 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.

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 dso occur if you
tailpipe is under water, yo~l*II never be able to start your
engine. When
you go through water. remember that
when your brakes get
wet. it nay take you longer
to stop.
2 wt your tailpipe under water. And. as long as your
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 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.
After Off-Road Driving
Relmove any brush or debris that has collected on the
underbody. chassis or 11nder the hood. These
accumulations CUI be a fire hazard.
After operation
in mud or sand. have the brake linings
cleaned and checked. These substances can C~LIS~
glazing and 1111even braking. Check the body structure.
steering. suspension. wheels, tires and exlxwst 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.
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The heavier the rain. the harder it is to see. Even il'yo~~r
windshield wiper blades are
in good sl~ape. 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 Wet brakes can cause accidents. They won't work
the windshield. or when strips of rubber start to separatc as well in a quick stop and may cause pulling to
from the inserts. one side. You could lose control of the vehicle.
After driving through a large puddle
of water or
a car wash, apply your brake pedal lightly until
your brakes work nornlally.
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0
0
Keep your 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.
Know
how to go down hills. The most important
thing to know is this:
let your engine do some of the
slowing down.
Shift to a lower gear when you go
down a steep or long hill.
If you don’t shift down, your brakes could get so
hot that they wouldn’t 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.
A CAUTION: . -.
Coasting downhill in NEUTRAL (N) or with the
ignition
otf is dangerous. Your brakes will have to
do all the work
of slowing down. They could get so
hot that they wouldn’t 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.
0 Know how to go uphill. You may want to shift down to a
lower gear. The lower gears help cool yo~~r engine and
transmission, and you can climb the hill better.
0 Stay in your own lane when driving on two-lane
roads
in hills or mountains. Don’t swing wide or cut
across the center
of the road. Drive at speeds that let
you stay
in your own lane.
0 As you go over the top of a hill, be alert. There could be
something
in your lane, like a stalled car or an accident.
You may see highway signs on nmuntains that warn of
special problems. Examples are long grades, passing or
no-passing zones. a falling rocks area or winding
roads.
Be alert to these and take appropriate action.
4-36

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°F; 0°C) and freezing rain begins to fill.
Try to avoid driving on wet ice until salt and sand crews
can get there. Whatever
me condition
-- smooth ice, packed, blowing.
or loose snow -- drive with caution.
Accelerate gently. Try not to break the fragile traction. If
you accelerate
too fist, the drive wheels will spin and
polish the surface under the tires even more.
Your anti-lock brakes improve your vehicle's stability
when
you make a hard stop on a slippery road. Even
though
you have an anti-lock braking system, you'll
want to begin stopping sooner than you would on dry
pavement. See "Anti-Lock"
in the Index.
Allow greater following distance on any
slippery road.
Watch for slippery spots. The road might be fine
until you hit a spot that's covered with ice. On an
otherwise clear road, ice patches may appear
in
shaded areas where the sun can't reach: around
clumps
of trees, behind buildings or under bridges.
Sometimes the surface of
a curve or an overpass may
remain icy when the surrounding roads are clear.
If
you see a patch of ice ahead of you, brake before you
are on it. Try not to brake while you're actually on
the ice, and avoid sudden steering maneuvers.
4-3s

Recreational Vehicle Towing (Four-wheel Drive With
7
Shift Transfer Case Only)
1.
2.
3.
3.
Set the par' * lg brake firmly.
Place an automatic transmission
in PARK (P) or a
manual transmission in FIRST ( I ).
Firmly attach the vehicle being towed to the tow
vehicle.
Do not tow the vehicle by the rear bumper
bar. Refer
to the hitch manufacturer's instructions.
Place the manual shift transfer case shift lever
in
NEUTRAL (N).
A CAUTION:
Shifting the transfer case into NEUTRAL (N) can
cause your vehicle to roll even if the transmission
is
in PARK (P), for an automatic transmission, or
if your vehicle is in gear, for a manual
transmission. You
or others could be injured.
Make sure the parking brake
is firmly set before
you shift the transfer case into
NEUTRAL (N).
5. Release the parking brake only after the vehicle
being towed is firmly attached
to the tow vehicle.
6. Insert the ignition key into the ignition switch and
turn
it one notch forward of the LOCK position. This
places the key
in the OFF position, which unlocks
the steering column while preventing battery drain.
Unlocking the steering column will allow
for proper
movement
of the front wheelshires during towing.
4-41

Towing a Trailer
If you don’t use the correct equipment and drive
properly, you can lose control when you pull a
trailer. For example, if the trailer
is too heavy, the
brakes may not work well
-- or even at all. You
and your passengers could be seriously in.jured.
Pull a trailer only
if you have followed all the
steps in this section.
Ask your GR/I dealer for
advice and information about towing a trailer with vour vehicle.
I NOTICE:
Pulling a trailer improperly can damage your
vehicle and result in costly repairs not covered
by
your warranty. To pull a trailer correctly, follow
the advice in this part, and see your
GM dealer
for important information about towing
a trailer
with your vehicle.
Every vehicle
is ready for some trailer towing. If yours
was built
with trailering options, as many are. it‘s ready
for heavier trailers.
But trailering is different than just
driving your vehicle by itself. Trailering means changes
in handling, durability and fuel economy. Successful,
safe trailering takes correct equipment, and
it has to be
used properly.
That’s the reason for this part. In
it are many
time-tested, important trailering tips and safety rules.
Many
of these are important for your safety and that of
your passengers.
So please read this section carefully
before you pull a trailer.
4-45

Will you have to make any holes in the body of your
vehicle when you install
ti trailer hitch'?
If you do. then be sure to seal the holes later when
you remove the hitch.
If you don't seal them, deadly
carbon monoxide
(CO) f~-om your exhaust can get
into your vehicle (see "Carbon Monoxide"
in the
Index).
Dirt and water can, too.
Safety Chains
you should always attach chains between yo11r vehicle
and
your trailer. Cross the safety chains under the tongue
of the trailer so that the tongue will not drop to the road
if it becomes separated from the hitch. Instructions
about safety chains may be provided by the hitch
manufilcturer
or by the trailer manufacturer. Follow the
manufacturer's recommendation for attaching safety
chains and
clo not attach them to the blmper. Always
leavejust enough slack
so you can turn with your rig.
And, never
allow safety chains to drag on the ground.
Trailer Brakes
If your trailer weighs more than 1.000 Ibs. (450 kg)
loaded, then it needs its own brakes -- and they must be
adequate. Be sure to read and follow the instructions
for
the trailer brakes so you'll be able to install, adjust and
n1aintain them properly.
Your trailer*s
brake system can tap into the vehicle's
hydraulic
brake system only if:
The trailer parts can withstand 3.000 psi
(20 650 kPa) of pressure.
0 The traileras brake system will use less th;m
0.02 cubic inch (0.3 cc) of fluid from your vehicle's
master cylinder-. Otherwise. both braking systems
won't work well.
You could even lose your brakes.
If everything checks out this far, then make the brake
tluid tap at the port on the master cylinder that sends
fluid to the
ear brakes. But don't use copper tubing for
this. If you do, it will bend and finally break off. Use
steel brake tubing.
4-49