Towin; a Traile
A CAUTION:
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 injured.
Pull
a trailer only if you have followed all the
steps in this section.
Ask your GM dealer for
advice and information about towing
a trailer
with your vehicle.
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.
Your vehicle can tow
a trailer. To identify what the
vehicle trailering capacity is for your vehicle, you
should read
the information in “Weight of the Trailer”
that appears later
in this section. 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 section.
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.
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6. Remove all the wheel
nuts, and take
off the
flat tire.
7. Remove any rust or dirt
from the wheel bolts,
mounting surfaces and
spare wheel.
I
A C it 'ION:
-
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel nuts
become loose after a time. The wheel could come'
off and cause an accident. When you change
a
wheel, remove any rust or dirt from the places
where the wheel attaches to the vehicle. In an
emergency, you can use
a cloth or a paper towel
to do this; but be,sure to use
a scraper or wire
brush later, if you need to, to get all the rust or
dirt off.
~~
A CAUTION:
7
Never use oil or g;,ase on studs or nuts. If you
do, the nuts might come
loose. Your wheel could
fall
off, causing a serious accident.
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Automatic Transmission Fluid
7 ’ ~ n to Check and Change
A good time to check your automatic transmission fluid
level is when the engine oil is changed.
Change
both the fluid and filter every 50,000 miles
(83 000 km) if the vehicle’s GVWR is over 8,600 or
if
the vehicle is mainly driven under one or more of
these conditions:
0 In heavy city traffic where the outside temperature
0 In hilly or mountainous terrain.
0 When doing frequent trailer towing.
regularly
reaches
90°F (32°C) or higher.
0 Uses such as found in taxi, police or delivery service.
If your vehicle’s GVWR is not over 8,600 and you do
not use your vehicle under any of these conditions, the
fluid and filter do not require changing.
See “Scheduled Maintenance Services”
in the Index.
How to Check
Because this operation can be a little difficult, you
may choose to have this done at your GM dealer
Service Department.
If you do it yourself, be sure to follow all the
instructions here, or you could get
a false reading on
the dipstick.
NOTICE:
Too much or too little fluid can damage your
transmission.
Too much can mean that some of
the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be
sure to get an accurate reading if you check your
transmission fluid.
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Replacing Brake System Parts
The braking system on a modern vehicle is complex. Its
many parts have to be of top quality and work well
together
if the vehicle is to have really good braking.
Vehicles we design and test have top-quality
GM brake
parts in them, as your vehicle does when
it is new. When
you replace parts
of your braking system -- for example,
when your brake linings wear down and you have to
have
new ones put in -- be sure you get new genuine
GM replacement parts. If you don’t, your brakes may
no longer work properly. For example, if someone
puts
in brake linings that are wrong for your vehicle,
the balance between your front and rear brakes can
change
-- for the worse. The braking performance
you’ve come to expect can change
in many other ways if
someone puts in the wrong replacement brake parts.
Battery
Every new vehicle has a Delco Freedom@ battery. You
never have to add water to one of these. When it’s time
for a new battery,
we recolnmend a Delco Freedom
battery. Get one that has the replacement number shown
on the original battery’s label.
Vehicle Storage
If you’re not going to drive your vehicle for 25 days
or more, take off the black, negative
(-) cable from
the battery.
This will help keep your battery from
running down.
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A CAUTION:
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make wheel nuts become loose
after
a time. The wheel could come off and cause
an accident. When you change
a wheel, remove
any rust or dirt from places where the wheel
attaches to the vehicle. In an emergency, you can
use
a cloth or a paper towel to do this; but be
sure to use
a scraper or wire brush later, if you
need
to, to get all the rust or dirt off. (See
“Changing a Flat Tire” in the Index.) When
It’s Time for New Tires
One way
to tell when it’s
time for new tires
is to
check the treadwear
indicators, which will
appear when your tires have
only 1/16 inch (1.6 mm) or
less of tread remaining.
Some commercial truck
tires may
not have
treadwear indicators.
You need a new tire if any of the following statements
are true:
0 You can see the indicators at three or more places
0 You can see cord or fabric showing through the
tire’s rubber.
0 The tread or sidewall is cracked, cut or snagged deep
enough to
show cord or fdbric.
0 The tire has a bump, bulge or split.
The tire has a puncture, cut or other damage that
around the
tire.
can’t
be repaired well because of the size or location
of the damage.
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Capacities and Specifications
Normal Maintenance Replacement Parts
Replacement part numbers listed in this section are based on the latest information available at the time of printing,
and are subject
to change. If a part listed in this manual is not the same as the part used in your vehicle when it was
built, or if you have any questions, please contact your GM truck dealer.
These specifications are for information only.
If you have any questions, see the service manual for the chassis or
refer to the body manufacturer’s publications.
Engine Identification -- Gasoline Engines
Type V6 V8
Engine “VORTEC” 4300 ”VORTEC” 5000
VIN Code W M
Fuel System SFI 1 SFI 1
‘Sequential Central Port Fuel Injection
Wheel Nut Torque
MODEL TORQUE
All 122 ft-lb (165 Nem)
“VORTEC” 5700 “VORTEC” 7400
V8
V8
R J
SF1 I SFI’
? -Sequential Multi-Port Fuel Injection
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1 ne Lommitment Plus Courtesy Transportation Program
is not part of the Bumper to Bumper Limited Wdrranty.
GMC Truck reserves the right to make any changes or
discontinue the Courtesy Transportation Program at any
time without notification.
For additional program details contact your GMC
Truck dealer.
For warranty repairs during the Complete Vehicle
Coverage period
in the New Vehicle Limited Wmanty,
interim transportation may be available under the
Courtesy Transportation Program. Please consult your
dealer for details. The Roadside Assistance program
is
available only in the United States and Canada.
GM Participation in BBB AUTO
LINE -- Alternative Dispute
Resolution Program*
"'This program may not be available in all states,
depending on state law. Canadian owners refer
to
your Warranty and Owner Assistance Information
booklet. General Motors rese.rves the right to change
eligibility limitations and/or to discontinue its
participation
in this program.
Both GMC Truck and your GMC Truck dealer are
committed
to making sure you are completely satisfled with your new vehicle. Our experience has shown that,
if a
situation arises where you feel your concern has not been
adequately addressed, the Customer Satisfaction Procedure
described earlier
in this section is very successful.
There may be instances where an impartial third party
can assist
in arriving at a solution to a disagreement
regarding vehicle repairs or interpretation
of the New
Vehicle Limited Warranty.
To assist in resolving these
disagreements,
GMC Truck voluntarily participates in
BBB AUTO LINE.
BBB AUTO LINE
is an out-of-court program
administered by the Better Business Bureau system to
settle disputes between customers and automobile
manufacturers. This program is available ,free
of charge
to customers who currently
own or lease a GM vehicle.
If you are not satisfied after following the Customer
Satisfaction Procedure, you may contact the BBB using
the toll-free telephone number, or write them at the
following address:
BBB AUTO LINE
Council
of Better Business Bureaus
4200 Wilson Boulevard
Suite
800
Arlington, VA 22203
Telephone:
1-800-955-5 IO0
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