Downloaded from www.Manualslib.com manuals search engine 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; 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.
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.
4-38
Downloaded from www.Manualslib.com manuals search engine Loading Your Vehicle
< SEE OWNER'S MANUAL FOR ADDITIONAL INFORMATION uu-
The CertificatiodTire label is found on the driver's door
edge, above
the door latch. The label shows the size of
your original tires and the inflation pressures needed to
obtain the gross weight capacity of your vehicle. This is
called the GVWR (Gross Vehicle Weight Rating). The
GVWR includes the weight
of the vehicle, all occupants,
fuel, cargo and trailer tongue weight, if pulling a trailer.
The Certificationmire label also
tells you the maximum
weights for the front and rear axles, called Gross Axle
Weight Rating (GAWR). To find out the actual loads
on
your front and rear axles, you need to go to a weigh station and weigh your vehicle.
Your dealer can help
you with this. Be sure'to spread out your load equally
on both sides of the centerline.
Never exceed the GVWR for your vehicle, or
the
Gross Axle Weight Rating (GAWR) for either the front
or rear axle.
And, if you do have a heavy load, you should spread
it out.
Similar appearing vehicles may have different GVWR's
and payloads. Please note the Certificationire label
of
your truck or consult your dealer for additional details.
I
. A CAUTION:
I
In the case of a sudden stop or collision, things
carried in the bed of your truck could shift
forward and come into the passenger area,
injuring you and others.
If you put things in the
bed of your truck, you should make, sure they are
properly secured.
4-42
Downloaded from www.Manualslib.com manuals search engine 0 If you haw a11 automatic transmission, you should Vehicle Axle Ratio Max. Trailer Wt.
use DRIVE (D) (or, as you need to, a lower gear)
when towing a trailer. Operating your vehicle in 2-Wheel Drive,
DRIVE (D) when towing a trailer will minimize heat 2.Z Engine 3.73 2,000
lbs. (908 kg)
4.10 2,000 lbs. (908 kg)
buildup and extend the life
of your transpission. If 2-Wheel Drive, 3.08 5,000 lbs.(2 270 kg)
you have a manual transmission and you are towing
“VORTEC” 4300 3.42 6,000 lbs.(2 724 kg)
a trailer, it’s better not to use
FIFTH (5) gear. Just Auto. Trans.
drive in
FOURTH (4) gear (or, as you need to, a -
lower gear). pi,. 2-Wheel Drive,
“-“‘VORTEC” 4300 3.08 4,000 lbs.( 1 816 kg)
Three important considerations have to do with weight:
Man. Trans. ,I+, : = . -
the weight of the trailer,
0 the weight of the trailer tongue
0 and the weight on your vehicle’s tires.
Weight of the Trailer
How heavy can a trailer safely be? 4-Wheel Drive,
3.08 4,500
lbs.(2 043
kg)
“VORTEC” 4300 3.42
5,500 lbs.(2 497 kg)
Auto. Trans. 3.73
5,500 lbs.(2
497 kg)
4-Wheel Drive, 3.08 3,500
lbs.( 1 589 kg)
“VORTEC” 4300 3.42
4,000 lbs.( 1 816
kg)
Man. Trans. 3.73
4,500 lbs.(2 043 kg)
It depends
on how you plan to use your rig. For
Maximum trailer weight is calculated assuming the
example, speed, altitude, road grades, outside
driver and one passenger are in the tow vehicle and it
temperature and how Your vehicle is used to Pull a
’ has all the required trailering equipment. The weight of
trailer are all important. And, it can also depend on any
agditional optional equipment, passengers and cargo in
special equipment that you have on your vehicle.
the tow vehicle must be subtracted from the maximum
The following chart shows how much your trailer can trailer weight. Two-wheel-drive models
with a GVWR
weigh, based upon your vehicle model and options. of
4,200 lbs.
(1 907 kg) and four-wheel-drive models
JT”;’ ,-p?? , ,- -&-I:. , * with the ZR2 suspension package are limited to a 2,000
’ , :-qqg$+. r *? *. F:. rr I‘
ty+ : ‘ -.. 4 I lbs. (908 kg) trailer rating.
4-49
Downloaded from www.Manualslib.com manuals search engine Total Weight on Your Vehicle’s Tires
Be sure your vehicle’s tires are inflated to the limit
for cold tires. You’ll find these numbers
on the
CertificatiodTire label on the driver’s door edge,
above the door latch or see “Tire Loading” in
the
Index. Then be sure you don’t go over the GVW
limit for your vehicle, including the weight of the
trailer tongue.
Hitches
It’s important to have the correct hitch equipment.
Crosswinds, large trucks going by and rough roads are
a few reasons why you’ll need the right hitch. Here are
some rules
to follow:
0 If you use a step-bumper hitch, your bumper could
be damaged
in sharp turns. Make sure you have
ample room when turning to avoid contact between
the trailer and the bumper.
0
0
If you’ll be pulling a trailer that, when loaded, will
weigh more than
2,000 lbs. (900 kg), be sure to use a
properly mounted, weight-distributing hitch and
sway control
of the proper size. This equipment is
very important for proper vehicle loading and good
handling when you’re driving.
If your vehicle has the bumper delete option, do not
bolt any type
of hitch to the close-out panel. The
close-out panel will not support a hitch.
Safety Chains
You should always attach chains between your 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
manufacturer or by the trailer manufacturer. Follow the
manufacturer’s recommendation
for attaching safety
chains and do
not attach them to the bumper. Always
leave just enough slack
so you can turn with your rig.
And, never allow safety chains to drag on the ground.
4-51
Downloaded from www.Manualslib.com manuals search engine Trailer Brakes
If your trailer weighs more than 1,000 lbs. (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.
Your trailer’s brake system can tap into the vehicle’s
hydraulic brake system only if
a
a
The trailer parts can withstand 3,000 psi
(20 650 kPa) of pressure.
The trailer’s brake system will use less than
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
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.
Driving with a Trailer
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.
Downloaded from www.Manualslib.com manuals search engine Towing Your Vehicle
Try to have a GM dealer or a professional towing
service tow your vehicle. See “Roadside Assistance”
in the Index.
If
your vehicle has been changed since it was
factory-new by adding things like fog lamps, aero
skirting, or special tires and wheels, these instructions
may not be correct.
Before you do anything, turn on the hazard
warning flashers.
When you call, tell the towing service:
0 Whether your vehicle has rear-wheel drive,
four-wheel drive or all-wheel drive.
The make, model and year of your vehicle.
Whether you can move the shift lever for the
transmission and shift the transfer case, if you
have one.
0 If there was an accident, what was damaged.
When
the towing service arrives, let the tow operator
know that this manual contains these towing
instructions. The operator may want
to see them.
To help avoid injury to you or others:
Never let passengers ride in a vehicle that is
being towed.
Never tow faster than safe or posted speeds.
Never tow with damaged parts not
fully secured. Never get under your vehicle after it has
been lifted by the tow truck.
Always use separate safety chains on each
side when towing
a vehicle.
Never use J-hooks. Use
T-hooks instead.
5-7
Downloaded from www.Manualslib.com manuals search engine Engine Fan Noise
This vehicle has a clutched engine cooling fan. When
the clutch is engaged, the fan spins faster to provide
more air
to cool the engine. In most every day driving
conditions the clutch is not engaged. This improves fuel
economy and reduces fan noise. Under heavy vehicle
loading, trailer towing and/or high outside temperatures,
the fan speed increases when the clutch engages.
So
you may hear an increase in fan noise. This is normal
and should not be mistaken as
the transmission
slipping or making extra shifts. It is merely the
cooling system functioning properly. The fan will slow
down when additional cooling
is not required and the
clutch disengages.
You may also hear this fan noise when you start the
engine. It will go away as the fan clutch disengages.
If a Tire Goes Flat
It’s unusual for a tire to “blow out” while you’re driving,
especially if
you maintain your tires properly. If air goes
out of a tire, it’s much more likely to leak out slowly.
But if
you should ever have a “blowout,” here are a few
tips about what
to expect and what to do:
If a front tire fails,
the flat tire will create a drag that
pulls
the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel firmly.
Steer
to maintain lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like a
skid and may require the same correction you’d
use in a
skid.
In any rear blowout, remove your foot from the
accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to
go. It may be
very bumpy and noisy, but
you can still steer. Gently
brake to a stop
-- well off the road if possible.
If a tire goes flat, the next part shows how to use your
jacking equipment
to change a flat tire safely.
5-21
Downloaded from www.Manualslib.com manuals search engine Don’t use your compact spare on other vehicles.
And don’t mix your compact spare tire or wheel with
other wheels or tires. They won’t fit. Keep your spare
tire and its wheel together.
I NOTICE:
Tire chains won’t fit your compact spare. Using
them can damage your vehicle and can damage
the chains too. Don’t use tire chains on your
compact spare.
If You’re Stuck: In Sand, Mud,
Ice or Snow
What you don’t want to do when your vehicle is stuck is
to spin your wheels too fast. The method known as
“rocking” can help you get out when you’re stuck, but
you must
use caution.
I If you let your tires spin at high speed, they can
explode, and you or others could be injured. And,
the transmission or other parts
of the vehicle
can overheat. That could cause an engine
compartment fire or other damage. When you’re stuck,
spin the wheels as little as possible. Don’t
spin the wheels above
35 mph (55 kmh) as shown
on the speedometer.
I
I NOTICE:
Spinning your wheels can destroy parts of your
vehicle as well as the tires.
If you spin the wheels
too
fast while shifting your transmission back
and forth, you can destroy your transmission.
For information about using tire chains on your vehicle,
see “Tire Chains” in the Index.
5-33