wiring GMC YUKON 1999 Owner's Manual

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2-11
Rear Doors
CAUTION:
It can be dangerous to drive with the tailgate
glass, tailgate or rear doors open because carbon
monoxide (CO) gas can come into your vehicle.
You can't see or smell CO. It can cause
unconsciousness and even death.
If you must drive with the tailgate glass, tailgate
or rear doors open or if electrical wiring or other
cable connections must pass through the seal
between the body and the tailgate glass, tailgate
or rear doors:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting on
VENT. That will force outside air into your
vehicle. See ªComfort Controlsº in the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.
Tailgate Glass and Tailgate
If your vehicle has a tailgate, you must raise the rear
glass before lowering the tailgate.
To open the glass from the outside, use your key. With
the key in the lock, turn the key clockwise to release the
glass, then lift it up.
To release the glass from the inside, use the electric
tailgate glass release switch on the instrument panel. For
more information, see ªTailgate
-- Electric Glass
Releaseº in the Index.
To open the tailgate, lift up on the handle while pulling
the tailgate toward you.
Close the tailgate before closing the rear glass. After
closing the tailgate, make sure the tailgate is securely
latched by pulling it toward you. After closing the rear
glass, pull up on its handle to make sure it is locked.

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2-46
Exterior Lamps
Your parking/headlamp knob is on the driver's side of
your instrument panel.
Turn the knob clockwise, to the parking lamp symbol, to
turn on the following:

Parking Lamps

Sidemarker Lamps
Taillamps

License Plate Lamps

Instrument Panel Lights
Turn the knob clockwise again, to the master lighting
symbol, to turn on all the lamps listed as well as
the headlamps.
Turn the knob counterclockwise, to OFF, to turn off
your lamps. For additional information on headlamp
operation, see ªHeadlamp Delayº in the Index.
Turn the thumbwheel next to the knob up to adjust
instrument panel lights. Turn the thumbwheel up to the
first notch to return the radio display and gearshift
indicator LED display to full intensity when the
headlamps or parking lamps are on. To turn on the dome
lamps (with the vehicle doors closed) turn the
thumbwheel up to the second notch position.
You can switch your headlamps from high to low beam
by pulling on the turn signal/high
-beam lever.
A circuit breaker protects your headlamps. If you have
an electrical overload, your headlamps will flicker on
and off. Have your headlamp wiring checked right away
if this happens.

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2-73 Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows AIR BAG. The system checks the
air bag's electrical system for malfunctions. The light
tells you if there is an electrical problem. The system
check includes the air bag sensors, the air bag modules,
the wiring and the crash sensing and diagnostic module.
For more information on the air bag system, see ªAir
Bagº in the Index.
This light will come on
when you start your engine,
and it will flash for a few
seconds. Then the light
should go out. This means
the system is ready.
If the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away.
The air bag readiness light should flash for a few
seconds when you turn the ignition key to RUN. If the
light doesn't come on then, have it fixed so it will be
ready to warn you if there is a problem.
Charging System Warning Light
The charging system
warning light should come
on briefly when you turn on
the ignition, before starting
the engine, as a check to
show you it is working.
After the engine starts, the light should go out. If it stays
on or comes on while you are driving, you may have a
problem with your charging system. It could indicate a
problem with the generator drive belt, or some other
charging system problem. Have it checked right away.
Driving while this light is on could drain your battery.
If you must drive a short distance with this light on, it
helps to turn off all your accessories, such as the radio
and the air conditioner.

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4-53 When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:

Start your engine;

Shift into a gear; and

Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you're
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transmission fluid (don't
overfill), engine oil, axle lubricant, belt, cooling system
and brake adjustment. Each of these is covered in this
manual, and the Index will help you find them quickly.
If you're trailering, it's a good idea to review these
sections before you start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Trailer Wiring Harness
Light-Duty Wiring Harness

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4-54
Additional Heavy-Duty Wiring
An eight
-wire harness is stored under the rear bumper of
your vehicle. The five
-wire light-duty harness is located
at the left hand rear inner lower quarter panel. The
additional heavy
-duty wiring is located forward of the
rear bumper and is attached to the center of the rear
crossmember or the forward vertical surface of the
platform hitch.
This harness has a 30 amp battery feed wire and no
connector, and should be wired by a qualified electrical
technician. After choosing an aftermarket mating
connector pair, have the technician attach one connector tothe eight
-wire trailer harness and the other connector to the
wiring harness on the trailer. Be sure that the wiring
harness on the trailer is strapped to the trailer's frame and
leave it loose enough so that the wiring doesn't bend or
break, but not so loose that it drags on the ground. The
technician can use the following color code chart when
connecting the wiring harness to your trailer.

Brown: Rear Lamps

Yellow: Left Stoplamp and Turn Signal

Dark Green: Right Stoplamp and Turn Signal

White (Heavy Gauge): Ground

Light Green: Back
-up Lamps

White (Light Gauge): Center High
-Mounted Stop
Lamp (If Equipped)

Blue: Auxiliary/Electric Trailer Brake Circuit
(If Equipped)

Orange: Fused Auxiliary Circuit (If Equipped)
Store the harness in its original place. Wrap the harness
together and tie it neatly so it won't be damaged.

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6-56
Electrical System
Add-On Electrical Equipment
NOTICE:
Don't add anything electrical to your vehicle unless
you check with your dealer first. Some electrical
equipment can damage your vehicle and the
damage wouldn't be covered by your warranty.
Some add
-on electrical equipment can keep other
components from working as they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see ªServicing
Your Air Bag
-Equipped Vehicleº in the Index.
Headlamps
The headlamp wiring is protected by a circuit breaker in
the lamp switch. An electrical overload will cause the
lamps to flicker on and off, or in some cases to remain
off. If this happens, have your headlamp wiring checked
right away.
Windshield Wipers
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow, etc., the wiper will stop until the motor cools.
Although the circuit is protected from electrical
overload, overload due to heavy snow, etc., may cause
wiper linkage damage. Always clear ice and heavy snow
from the windshield before using the windshield wipers.
If the overload is caused by some electrical problem and
not snow, etc., be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power
windows and other power accessories. When the current
load is too heavy, the circuit breaker opens and closes.
This protects the circuit until the current load returns to
normal or the problem is fixed.

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6-57 Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses, circuit breakers
and fusible thermal links in the wiring itself. This
greatly reduces the chance of fires caused by electrical
problems. See ªFuses and Circuit Breakersº in the Index
for more information.
Look at the silver
-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical size
and rating.
If you ever have a problem on the road and don't have a
spare fuse, you can borrow one that has the same
amperage. Just pick some feature of your vehicle that
you can get along without
-- like the radio or cigarette
lighter
-- and use its fuse, if it is the correct amperage.
Replace it as soon as you can.Instrument Panel Fuse Block
The fuse block access door
is on the driver's side edge
of the instrument panel. Pull
off the cover to access the
fuse block.
You can remove fuses with
a fuse extractor. The fuse
extractor is mounted to the
fuse block access door.
To remove fuses, if you don't have a fuse extractor, hold
the end of the fuse between your thumb and index finger
and pull straight out.
You may have spare fuses attached to the inside of the
fuse block access door. These can be used to replace a
bad fuse. However, make sure that it is the
correct amperage.

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9-5
Gages
Engine Coolant Temperature 2-76 . . . . . . . . . . . . . . . . . . . .
Engine Oil Pressure 2-79 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 2-82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltmeter 2-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAWR 4-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Positions, Automatic Transmission 2-25 . . . . . . . . . . . . .
Glove Box 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GM Mobility Program for Persons with Disabilities 8-5 . . . . .
GM Vehicle Care/Appearance Materials 6-54 . . . . . . . . . . . . .
Gross Axle Weight Rating 4-44 . . . . . . . . . . . . . . . . . . . . . . . .
Gross Vehicle Weight Rating 4-43 . . . . . . . . . . . . . . . . . . . . . .
Guide en Fran†ais ii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GVWR 4
-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Halogen Bulbs 6-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazard Warning Flashers 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . .
Head Restraints 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlamp Delay 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlamps 2-46, 6-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-34, 6-61 . . . . . . . . . . . . . . . . . . . . . . .
High/Low Beam Changer 2-41 . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing Impaired, Customer Assistance 8-4 . . . . . . . . . . . . . .
Heated Front Seats 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heated Rear Seats 1-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating 3-2, 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-Beam Headlamps 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . .
Highway Hypnosis 4-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill and Mountain Roads 4-36 . . . . . . . . . . . . . . . . . . . . . . . . .
Hitches, Trailer 4-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hood, Checking Things Under 6
-8 . . . . . . . . . . . . . . . . . . . . .
Hood Release 6-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydroplaning 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Positions 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transmission Lock Check 7-38 . . . . . . . . . . . . . . . . .
Inflation, Tire 6-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Rearview Mirror 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspections 7-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake System 7-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Axle 7-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling System 7-39 . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust System 7-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 7-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension 7-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle System 7-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case (Four-Wheel Drive) 7-40 . . . . . . . . . . . . . . .
Instrument Panel 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brightness Control 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cluster 2-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Lamps 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack, Tire 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-36 . . . . . . . . . . . . . . . . . . . . . .
Keyless Entry System 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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9-11
Tire-Loading Information Label 4-43 . . . . . . . . . . . . . . . . . . .
Tires 6-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance 6-45 . . . . . . . . . . . . . . . . . . . . . . . .
Buying New 6-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation 6-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation Check 7-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Rotation 6-41 . . . . . . . . . . . . . . . . . . . . . . . .
Loading 4-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure 6-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Traction 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Treadwear 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Uniform Quality Grading 6-44 . . . . . . . . . . . . . . . . . . . . . . .
Used Wheel Replacement 6-46 . . . . . . . . . . . . . . . . . . . . . .
Wear Indicators 6-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Replacement 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . .
When It's Time for New 6-42 . . . . . . . . . . . . . . . . . . . . . . .
Top Strap 1-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Lock 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque, Wheel Nut 5-29, 6-63 . . . . . . . . . . . . . . . . . . . . . . . . .
Towing
From the Front 5
-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
From the Rear 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recreational Vehicle 4-42 . . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer 4-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Your Vehicle 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trailer
Brakes 4
-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving on Grades 4-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving with 4-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling When Towing 4-53 . . . . . . . . . . . . . . . . . . .
Hitches 4-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance When Towing 4-53 . . . . . . . . . . . . . . . . . . . . .
Parking on Hills 4-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Chains 4-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tongue Weight 4-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Weight on Tires 4-48 . . . . . . . . . . . . . . . . . . . . . . . . . .
Towing 4-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signals 4-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weight 4-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Harness 4-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case 6-21, 7-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case, Automatic 2-28 . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Fluid, Automatic 6-17, 7-41 . . . . . . . . . . . . . . .
Transmitter, Keyless Entry 2-6 . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter, Universal 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transportation, Courtesy 8-8 . . . . . . . . . . . . . . . . . . . . . . . . . .
Trip Odometer 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TTY Users 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Lane Change Signals 2-40 . . . . . . . . . . . . . . .
Turn Signals When Towing a Trailer 4-51 . . . . . . . . . . . . . . . .
Underbody Maintenance 6-53 . . . . . . . . . . . . . . . . . . . . . . . .
Underhood Fuse/Relay Center 6-59 . . . . . . . . . . . . . . . . . . . . .
Universal Transmitter 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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9-12
Vehicle
Control 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Damage Warnings iv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification Number 6
-55 . . . . . . . . . . . . . . . . . . . . . . . . .
Loading 4-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading for Off-Road Driving 4-15 . . . . . . . . . . . . . . . . . . .
Storage 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ventilation System 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visors, Sun 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltmeter 2-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Devices 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Lights, Gages and Indicators 2-72 . . . . . . . . . . . . . . .
Warranty Information 8-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washer Fluid, Windshield 6-28, 7-41 . . . . . . . . . . . . . . . . . . .
Washing Your Vehicle 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrip Lubrication 7-36 . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrips 6-50, 7-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel
Alignment 6
-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nut Torque 5-29, 6-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used Replacement 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrench 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Window Lock 2
-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows, Lockout Switch 2-38 . . . . . . . . . . . . . . . . . . . . . . . .
Windows, Power 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Washer 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 2-42, 6-28, 7-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Level Check 7-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wipers 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blade Replacement 6-38, 6-64 . . . . . . . . . . . . . . . . . . . . . .
Cleaning the Blades 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winter Driving 4-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper Blades, Cleaning 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Harness, Trailer 4-53 . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring, Headlamp 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrecker Towing 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrench, Wheel 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .