1993 GMC SIERRA spare wheel

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 dow\
n steadily
when you have to stop suddenly.
As long as the front wheels are rolling, you
will have steering control. Steer the way you want to go.
Off-Road Driving with Your FourcWheel
Drive Vehicle
This off-road guide is for vehicles that have four-wheel drive. Also, see
“Anti-lock Brakes” in the Index.
If your vehicle doesn’t have four-wheel drive,
you shouldn’t drive off-road unless you’re on a level, so\
lid surface.
Off-road driving can be great fun. But it does have some defi\
nite hazards.
The greatest
of these is the terrain itself.
“Off-roading” means you’ve left the great North American\
road system behind.
Traffic lanes aren’t marked. Curves aren’t banked. There a\
re no road signs.
Surfaces can be slippery, rough, uphill
or downhill. In short, you’ve gone right
back
to nature.
Off-road driving involves some new skills. And that’s why it’s very important
that you read this guide. You’ll find many driving tips and suggestions. These
will help make your off-road driving safer and more enjoyable. \
Before You Go Off-Roading
There are some things to do before you go out. For example, be sure to
have all necessary maintenance and service work done. Be sure \
you read all
the information about your four-wheel drive vehicle in this manual.
Is there
enough fuel?
Is the spare tire fully inflated? Are the fluid levels up where
they should be? What are the local laws that apply to off-roa\
ding where you’ll be driving?
If you don’t know, you should check with law enforcement people\

in the area. Will you be on someone’s private land?
If so, be sure to get the
necessary permission.
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Problenrs on the Road
Jack Storage
Your jack and wheel ratchet are behind the passenger seat. Turn. th\
e wing
nut counterclockwise and remove the cover
if there is one.
Spare Tire
-
i
K2517
Your spare tire is either underneath the rear of the vehicle, or mounted to the
inside of the bed on the driver’s side.
If you have a chassis cab, refer to the
information from the body supplier/installer.
The spare tire
is a full size tire, like the other tires’ on your vehicle.
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Problems on the Road
"I
K2536
Attach the ratchet, with the DOWN marking facing you, to the wheel wrench.
Put the chisel end
of the wheel wrench on an angle through the hole in the
rear bumper. Be sure the wheel wrench connects into the hoist shaft.
Turn the ratchet to the left to lower the spare tire. Keep turning the ratchet
until the spare tire can be pulled out from under the vehicle\
.
K2537
When the tire has been lowered, tilt the retainer at the end of the cable and
pull
it through the wheel opening.
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A
T
..
LL
'2
K2521
Attach the jack handle (and jack handle extensions, if needed) to the jack. With
the
UP marking on the ratchet facing you, rotate the ratchet clockwise. That will
lift the jack head a little. Before raising the vehicle, do the fo\
llowing things.
Put your spare tire near the flat tire.
Remove the wheel trim.
K2367
If there is a wheel cover, remove it by using the flat end of the wheel
wrench.
Pry along the edge of the wheel cover until it comes off. Be
careful; the rim edges may be sharp. Don't
try to remove it with your bare
hands.
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I CAUTION
Sust or dirt on the wheel, or on the parts to which it is fastened,
could come
off and cause an accident. When you change a wheel,
remove any rust or dirt from the places where the wheel attac\
hes 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 vou
need to, to get all the rust or dirt
off.
A :an make the wheel nuts become loose after a time. The wheel
Remove any rust
or dirt from the wheel bolts, mounting surfaces or spare
wheel. Place the spare on the wheel mounting surface.
1 CAUTION I
Never use oil or grease on studs or nuts. If you do, the nuts migh
come loose. Your wheel could fall
off, causing a serious accident.
K2530
Replace the wheel nuts with the rounded end of the nuts toward the wheel.
Tighten each wheel nut by hand until the wheel is held against the hub.
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Incorrect wheel nuts or improperly tightened wheel nuts can cau\
se
the wheel to become loose and even come
off. This could lead to
i accident. Be sure to use the correct wheel nuts. If you have to
Stop somewhere as soon as you can and have tht; wts tightened
vvith a torque wrench to the proper torque.
. lace them, be sure to get the right kind. mGe+ . p+p+<.:,
For proper torque, see “Wheel Nut Torque” in the Index.
Put the wheel trim back on. For vehicles with plastic nut cap\
s, tighten the
caps until they are finger tight, then tighten them an additio\
nal one-half turn
with the ratchet. Remove any wheel
blocks.
ring a jack, a tire or other equipment in the passenger - I.
compartment of the vehicle cnvld cause injuy In a sudden stnn OW 4s
in collision, loose equipment
the proper place.
-
Storing the Jack and Tire
Storing Tire in Underbody Carrier
UNDERBODY SPARE TIRE MOUNTING
HOIST
CABLE
RETAINER
& RATCHET
=r/49q “UP/DOWN” MARKING
WHEEL WRENCH

SHAFT (CHISEL END)
TIRE
a>
SPARE VALVE STEM
(POINTED DOWN)
PB009
Put the tire on the ground at the rear of the vehicle, with the valve stem
pointed down.
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r CAUTION I
If you operate your vehicle with a tire that is badly underinflated, the
tire can overheat. An overheated tire can lose air suddenly or catcl.
fire. You or others could be injured. Be sure all tires (including the
spare,
if any) are properly inflated.
Buying New Tires
To find out what kind and size of tires you need, look at the Certificationflire
label. The tires installed on your vehicle when it was new had a Tire
Performance Criteria Specification (TPC Spec) number on each tire’s sidewall.
When you get new tires, get ones with that same TPC Spec num\
ber. That
way, your vehicle will continue to have tires that are designed to give proper
endurance, handling, speed rating, traction, ride and other thin\
gs during
normal service on your vehicle. If your tires have an all-season tread design,
the TPC number will be followed by a
“MS” (for mud and snow).
If you ever replace your tires with those not having a TPC Spec number,
make sure they are the same size, load range, speed rating and construction
type (bias, bias-belted
or radial) as your original tires.
1 CAUTION
* Mixing tires could cause you to lose control while driving. If you mix
vehicle may not handle properly, and you could have a crash. Be
- ) tires of different sizes or types (radial and bias-belted tires), the
I sure to use the same size and type tires on all wheels. I
Uniform Tire Qua/ity Grading
The following information relates to the system developed by the United
States National Highway Traffic Safety Administration which grade\
s tires by
treadwear, traction and temperature performance. (This applies o\
nly to
vehicles sold in the United States.)
Treadwear
The treadwear grade is a comparative rating based on the wear rate of the
tire when tested under controlled conditions on a specified governmen\
t test
course. For example, a tire graded
150 would wear one and a half (1 1/2)
times as well on the government course as a tire graded 100. The relative
performance
of tires depends upon the actual conditions of their use,
however, and may depart significantly from the norm due to var\
iations in
driving habits, service practices and differences in road characteristics and
climate.
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S
Safety Belts .................................. 1-1 1
Center Passenger Position
...... 1-26
Cleaning
..................................... 6-87
Checking Restraint System
..... 1-52
Child Restraints
........................ 1-37
Children
..................................... 1-35
Driver Position
.......................... 1-1 8
Extender
.................................... 1-52
Lap Shoulder
............................. 1-19
Larger Children
.......... : .............. 1-50
Proper Wear
.............................. 1-1 8
Questions and Answers
.......... 1-1 6
Rear Seat Passengers
............. 1-29
Reminder Light
......................... 1-1 7
Replacing After a Crash
.......... 1-53
Right Front Passenger Position
.................................. 1-25
Small Children and Babies
..... 1-36
Use During Pregnancy
............. 1-24
Why They Work
........................ 1-13
Safety Chains
............................... 4-58
Safety Warnings and Symbols
..... 0-2
Scheduled Maintenance Services
................ 7-3, 7-4, 7-18
Seats
Controls
........................................ 1-2
Easy Entry Seat
.......................... 1-8
Latches
.............................. 1-5, 1-10
Manual Front
............................... 1-2
Power Driver’s
............................ 1-3
Rear
.............................................. 1-9
Reclining
..................................... 1-3
Do-It-Yourself
............................... 6-3
Parts Identification Label
......... 6-94
Publications
........................ 8-6, 8-8
Replacement
. Parts and
Filter Recommendations
...... 6-99
Light
................................ 2-83, 6-66
Adults
........................................ 1-1
8
Service
Service Engine Soon Service Station Checks
............... 7-28
Shift Indicator Light
.......... 2.27. 2-85
Shifting Into Park
........................ 2-30
Single Belt Accessory Drive
...... 6-51
Sliding Rear Window
.................. 2-40
Spare Tire
..................................... 5-20
Pickup Bed Mourrting
.... 5.23. 5-32
Removal
..................................... 5-21
Storage
...................................... 5-31
Specification Charts
.................... 6-95
Speedometer
................................ 2-76
Starting Your Diesel Engine
....... 2-15
Starting Your Gasoline Engine
... 2-12
Steering
......................................... 4-19
Column Shift Lever
.................. 2-31
In Emergencies
........................ 4-21
Storage Compartments
............... 2-63
Console
........................... 2.64. 2-65
Glove Box
................................. 2-63
Other
.......................................... 2-68
Sun Visors
.................................... 2-61
Swing-Out Windows
.................... 2-40
T
Tachometer ........................ 2-76, 2-78
Tailgate
............................................ 2-8
Theft
................................................ 2-9
Thermostat
.................................... 6-46
Tilt Wheel
..................................... 2-41
Tires
............................................... 6-72
Balancing
................................... 6-82
Chains
........................................ 6-84
Changing a Flat
............. 5-17, 5-23
Flat
............................................. 5-17
Hub CapsNVheel Nut Caps
.... 5-24
Inspection/Rotation
........ 6-78. 6-79
Loading
...................................... 6-67
New
................................. 6-80. 6-81
Pressure
..................................... 6-73
Spare (See “Spare Tire”) Underbody Carrier
................... 5-21
Uniform Tire Quality Grading
. 6-81
9-6
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