tire pressure CHEVROLET TRACKER 1995 Owners Manual

A computer senses that the rear wheels are slowing
down.
If one of the rear wheels is about to stop rolling,
the computer will work the brakes at the rear wheels. It
is programmed to make the most
of available tire and
road conditions.
As you brake, your computer keeps receiving updates
on
rear wheel speed and controls braking pressure
accordingly. Remember:
Anti-lock doesn’t change the time you need
to get your foot up to the brake pedal. If you get too
close to the vehicle in front of you,
you won’t have time
to apply your brakes if that vehicle suddenly slows or
stops. Always leave enough room up ahead to stop, even
though
you have anti-lock brakes.
To Use Anti-Lock
Use rear-wheel anti-lock like regular brakes. You may
feel the brakes; vibrate, or you may notice some noise
outside your vehicle, but this is normal. Let anti-lock
work for
you, but remember: Your front wheels can still
stop rolling.
If that happens, release enough pressure on
the brakes to get the wheels rolling again
so that you can
steer.
With the four-wheel drive option, you won’t have
anti-lock brak.ing when
you shift into four-wheel drive.
But
you will have regular braking. When you shift back
into two-wheel drive,
you will have anti-lock again.
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Braking in Emergencies
At some time, nearly every driver gets into a situation
that requires hard braking.
You have the rear-wheel anti-lock braking system. Your
front wheels can stop rolling when
you brake very hard.
Once they do, the vehicle can’t respond to your steering.
Momentum will carry it in whatever direction it was
headed when the front wheels stopped rolling. That
could be
off the road, into the very thing you were trying
to avoid, or into traffic.
So, use a “squeeze” braking technique. This will give
you maximum braking while maintaining steering
control. You
do this by pushing on the brake pedal with
steadily increasing pressure. When
you do, it will help
maintain steering control.
In many emergencies, steering
can help you more than even the very best braking.
Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you
can steer but
it will take much more effort.
Steering Tips
Driving on Curves
It’s important to take curves at a reasonable speed.
A lot of the “driver lost control” accidents mentioned on
the news happen on curves. Here’s why:
Experienced driver or beginner, each
of us is subject to
the same laws
of physics when driving on curves. The
traction
of the tires against the road surface makes it
possible for the vehicle
to change its path when you turn
the front wheels.
If there’s no traction, inertia will keep
the vehicle going in the same direction.
If you’ve ever
tried
to steer a vehicle on wet ice, you’ll understand this.
The traction you can get in
a curve depends on the
condition of your tires and the road surface, the angle at
which the curve is banked, and your speed. While
you’re
in a curve, speed is the one factor you can
control.
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If your vehicle starts to slide, ease your foot off the
accelerator pedal and quickly steer the way you want the
vehicle to go. If you start steering quickly enough, your
vehicle may straighten
out. Always be ready for a
second skid if it occurs.
Of course, traction is reduced when water, snow, ice,
gravel, or other material is on the road. For safety,
you’ll
want to slow down and adjust your driving to these
conditions. It is important to slow down on slippery
surfaces because stopping distance will be longer and
vehicle control more limited.
While driving
on a surface with reduced traction, try
your best to avoid sudden steering, acceleration, or
braking (including engine braking by shifting to a lower
gear). Any sudden changes could cause the tires to slide.
You may not realize the surface
is slippery until your
vehicle is skidding. Learn
to recognize warning
clues
-- such as enough water, ice or packed snow on
the road to make a “mirrored surface” -- and slow
down when you have any doubt.
Remember: The rear-wheel anti-lock braking system
(RWAL) helps avoid only a rear braking skid.
In a
braking skid (where the front wheels are no longer
rolling), release enough pressure
on the brakes to get the front
wheels rolling again. This restores steering control.
Push the brake pedal down steadily when you have to
stop suddenly. As long as the front wheels are rolling,
you will have steering control.
Driving Guidelines
This multipurpose passenger vehicle is defined as a
utility vehicle
in Consumer Information Regulations
issued by the National Highway Traffic Safety
Administration (NHTSA) of the United States
Department of Transportation, Utility vehicles have
higher ground clearance and a narrower track to make
them capable of performing in a wide variety
of off-road
applications. Specific design characteristics give them
a
higher center of gravity than ordinary cars. An
advantage
of the higher ground clearance is a better
view
of the road allowing you to anticipate problems.
They are
not designed for cornering at the same speeds
as conventional 2-wheel drive vehicles any more than
low-slung sports cars are designed
to perform
satisfactorily under off-road conditions. If at all
possible, avoid sharp turns or abrupt maneuvers.
As with
other vehicles of this type, failure
to operate this vehicle
correctly may result in loss of control or vehicle
rollover.
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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 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.
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Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that
they can actually ride on the water.
This can happen if the road
is wet enough and you’re
going fast enough. When your vehicle is hydroplaning,
it has little or no contact with the road.
Hydroplaning doesn’t happen often.
But it can if your
tires haven’t much tread or if the pressure
in one or
more is low. It can happen if a lot of water is standing
on
the road. If you can see reflections from trees, telephone
poles, or other vehicles, and raindrops “dimple” the
water’s surface, there could be hydroplaning.
Hydroplaning usually happens at higher speeds. There
just isn’t a hard and fast rule about hydroplaning. The
best advice is to slow down when it is raining.
Some Other Rainy Weather Tips
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Turn on your low-beam headlamps -- not just your
parking lamps
-- to help make you more visible to
others.
Besides slowing down, allow some extra following
distance. And be especially careful when
you pass
another vehicle. Allow yourself more clear room
ahead, and be prepared to have your view restricted
by road spray.
Have good tires with proper tread depth. (See
“Tires” in the Index.)
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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
ChevroletlGeo 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:
0 Windshield Washer Fluid: Is the reservoir full? Are
all windows clean inside and outside?
0 Wiper Blades: Are they in good shape?
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Fuel, Engine Oil, Other Fluids: Have you checked
all levels?
Lamps: Are they all working? Are the lenses clean?
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? Should you delay your trip a short
time to avoid a major storm system?
Maps: Do you have up-to-date maps?
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.
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I
NOTICE:
The front wheels transmit shocks during towing.
The steering column may not be strong enough to
withstand the shocks. Always unlock the steering
wheel before towing.
Loading Your Vehicle
I NOTICE:
Make sure that the towing speed does not exceed
damaged.
I 50 mph (SO kmh), or your Geo could be badly
f
TIRE PLACARD
GhR GWVR FRT GAWR RR
WKg
TIRES
RIMS
INFLATION PRESSURE COLD PSVkPa
Two labels on your vehicle show how much weight it
may properly carry. The Tire-Loading Information label
found on the driver’s door lock pillar tells you the
proper size, speed rating and recommended inflation
pressures for the tires on your vehicle. It also gives you
important information about the number of people that
can be in your vehicle and the total weight that
you can
carry.
This weight is called the Vehicle Capacity Weight
and includes the weight of all occupants, cargo, and all
nonfactory-installed options.
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nailer Brakes
If your trailer weighs more than 1,000 pounds (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
maintain them properly.
Driving with a Trailer
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Don’t tap into your vehicle’s brake system if the
trailer’s brake system will use more than
0.02 cubic
inch
(0.3 cc) of fluid from your vehicle’s master
cylinder.
If it does, both systems won’t work well.
You could even lose your brakes.
Will the trailer brake parts take
3,000 psi
(20 650 kPa) of pressure? If not, the trailer brake
system must not be used with your vehicle.
If everything checks out this far, then make the brake
fluid tap at the port on the master cylinder that sends
fluid to the rear brakes. But don’t use copper tubing
for this.
If you do, it will bend and finally break off.
Use steel brake tubing. Towing
a trailer requires a certain amount of experience.
Before setting out for the open road, you’ll
want to get
to know your rig. Acquaint yourself with the feel of
handling and braking with the added weight
of the
trailer. And always keep in mind that the vehicle you
are
driving is now a good deal longer and not nearly as
responsive as your vehicle
is by itself.
Before you start, check the trailer hitch and platform
(and attachments), safety chains, electrical connector,
lamps, tires and mirror adjustment.
If the trailer has
electric brakes, start your vehicle and trailer moving and
then apply the trailer brake controller by hand to be sure
the brakes are working. This lets
you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer brakes
are still working.
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Inflation - Tire Pressure
The Tire-Loading Information label which is on the
driver’s door shows the correct inflation pressures for
your tires, when they’re cold.
“Cold” means your
vehicle has been sitting for at least three hours or driven
no more than
a mile.
I
’ NOTICE:
Don’t let anyone tell you that underidation or
~ overinflation is all right. It’s not. If your tires don’t
~ have enough air (underinflation) you can get:
Too much flexing
Too much heat
Tire overloading
Bad wear
Bad handling
Bad fuel economy.
If your tires have too much air (overinflation),
you can get:
Unusual wear
0 Bad handling
Rough ride
Needless damage from road hazards. When to Check
Check your
tires once a month or more. Also, check the
tire pressure of
the spare tire.
How to Check
Use a good quality pocket-type gage to check tire
pressure. Simply looking at the tires will
not tell you the
pressure, especially if you have radial tires
-- which
may look properly inflated even
if they’re underinflated.
If your tires have valve caps, be sure to put them back on.
They help prevent leaks by keeping out dirt and moisture.
Tire Inspection and Rotation
Tires should be inspected every 6,000 to 8,000 miles
(10 000 to 13 000 km) for any signs of unusual wear. If
unusual wear is present, rotate your tires as
soon as
possible and check wheel alignment. Also check for
damaged tires or wheels. See “When It’s Time for New
Tires” and “Wheel Replacement” later in this section for
more information.
The purpose
of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first
rotation is the most important. See “Scheduled
Maintenance Services” in
the Index for scheduled
rotation intervals.
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When rotating your tires, always use one of the correct
rotation patterns shown here.
,
c
t
ri . e1
After the tires have Deen rotated, adjust the front and
rear inflation pressures as shown on the Tire-Loading
Information label. Make certain that all wheel nuts are
properly tightened. See “Wheel
Nut Torque” in the
Index.
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