light GMC SAFARI 2003 Repair Manual

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. This greatly reduces the
chance offires caused by electrical problems.
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.
Spare fuses and a fuse puller are located in the
underhood fuse block. You can remove fuses with the
fuse puller. Remember to replace any of the spare fuses
you use, so you will have some if you ever need them
again.
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.
There are two fuse blocks in your vehicle: one is inside
the vehicle and one is in the engine compartment.
Instrument Panel Fuse Block
The fuse block is located on the lower portion of the
instrument panel on the driver’s side.
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2003 - Safari OM

Fuse/Circuit
BreakerUsage
1 Stop/Turn/Hazard Lamps, Center
High Mounted Stop Lamp, Anti-Lock
Brakes
2 Radio Accy, Rear Seat Audio
ControlsFuse/Circuit
BreakerUsage
3 Courtesy Lamps, Glove Box Lamp,
Dome Reading Lamps, Vanity Mirror
Lamps, Courtesy Lamps
4 Daytime Running Lamps Relay,
Instrument Panel Cluster
5 Rear Defogger
6 Cruise Module, Truck Body Control
Module, Instrument Panel Cluster,
Cruise Control Switch,
Electrochromic Mirror
7 Power Outlets, DLC, Subwoofer
Amplifier
8 Crank Circuit Fuse, Park/Neutral
Switch, Starter Enabler Relay
9 License Plate Lamp, Tailamps,
Parking Lamps, Ashtray Lamp,
Panel Lights, Trailer Taillamps, Front
and Rear Sidemarker Lamps, Door
Switch Illumination, Headlamp
Switch Illumination, Rear Seat Audio
Illumination, Truck Body Control
Module
10 Air Bag System
11 Not Used
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2003 - Safari OM

Fuse/Circuit
BreakerUsage
12 L, M1, M2 Blower Motor, Rear Air
Conditioning Relay Coil, Front Cont.
Temp. Door Motor, HI Blower Relay,
Defogger Timer Coil
13 Cigarette Lighter, Door Lock
Switches, Dutch Door Release
Module
14 Cluster Illum, Climate Controls,
Chime Module, Radio Illumination,
Rear Heat Switch Illumination, Rear
Wiper/Washer Switch Illumination,
Rear Liftgate Switch Illumination,
Remote Cassette Illumination,
Overhead Console, Truck Body
Control Illumination
15 Truck Body Module, Headlamp
Relay
16 Front Turn Signals, Rear Turn
Signals, Trailer Turn Signals,
Back-Up Lamps, Brake
Transmission Shift Interlock SolenoidFuse/Circuit
BreakerUsage
17 Front Wipers, Front Washer Pump
18 VCM-Ign 3, VCM-Brake, Cruise
Stepper Motor Signal, ATC Module
19 Instrument Panel Radio: ATC (Main
Feed), 2000 Series (Standby)
20 PRNDL/Odometer, TCC Enable and
PWM Solenoid, Shift A and Shift B
Solenoids, 3–2 Downshift Solenoid,
Instrument Panel Cluster, VCM
Module
21 Powr Adjust Mirrors
22 Not Used
23 Rear Wiper, Rear Washer Pump
24 Not Used
A (Circuit Breaker) Power Door Lock
Relay, 6–Way Power Seats
B (Circuit Breaker) Power Windows
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Fuse/Circuit
BreakerUsage
Blank Not Used
RH HDLMP Right Headlamp
LH Headlamp Left Headlamp
Blank Not Used
Blank Not Used
DIODE-1 Air Conditioning
Blank Not Used
Blank Not Used
Blank Not Used
LIGHTING Courtesy Fuse, Power Adjust
Mirrors Fuse, Truck Body Control
Battery FuseFuse/Circuit
BreakerUsage
BATT Power Accessory Circuit Breaker,
Stop/Hazard Fuse, Auxiliary Power
Fuse, Cigarette Lighter Fuse, Radio
Battery Fuse
IGN A Starter Relay, Ignition Switch
IGN B Ignition Switch
ABS Electronic Brake
Control Module
Blank Not Used
RAP Radio Accessory, Power Windows
HTD MIR/RR
DEFOGRear Window Defogger,Climate
Control Head
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At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag
system does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
Cleaning the Outside of Your Vehicle on page 5-79.
Spare Tire Check
At least twice a year, after the monthly ination check of
the spare tire determines that the spare is inated to
the correct tire ination pressure, make sure that
the spare tire is stored securely. Push, pull, and then try
to rotate or turn the tire. If it moves, use the wheel
wrench to tighten the cable. SeeChanging a Flat Tire
on page 5-65.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. SeePart D: Recommended Fluids and
Lubricants on page 6-34.
Automatic Transmission Check
Check the transmissionuid level; add if needed. See
Automatic Transmission Fluid on page 5-22.Auid loss
may indicate a problem. Check the system and repair
if needed.
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2003 - Safari OM

Roadside Assistance Program
GMC’s Roadside Assistance Provides stranded owners
with over-the-phone roadside repairs, location of the
nearest GMC dealer or the following special services:
Flat Tire Change:Installation of spare tire will be covered
at no charge (customer is responsible for repair or
replacement of tire).
Fuel Delivery:Delivery of enough fuel for the customer
to get to the nearest service station (up to $5.00)
will be covered.
Jump Start:No-start situations which require a battery
jump start will be covered at no charge.
Lock Out:Replacement keys or locksmith service will be
covered at no charge if you are unable to gain entry
into your vehicle. Delivery of the replacement key will be
covered within 10 miles (16 km).
Emergency Towing Service:Towing to the nearest GMC
dealer for warranty related disablements will be covered.
Trip Routing:Custom-made, computerized highlighted
maps using the most direct or scenic route are provided
free of charge. Maps include points of interest and a
list of GMC dealers along the route. Also included is a
list of hotels along the route that are discounted
through affiliation with“Quest International.”Trip Routing
is available through Roadside Assistance by calling
1-800-GMC-8782 (462-8782). Please be prepared to
provide your Vehicle Identication Number (VIN). Allow
ve working days for fulllment.Trip Interruption Assistance:GMC will reimburse any
reasonable trip interruption expenses (up to $500.00)
when directly associated with warranty disablement. Trip
interruption service covers expenses such as meals
and overnight lodging if vehicle disablement occurs at
least 150 miles (240 km) from your home or rental
property. You will be required to obtain prior approval
from GMC Roadside Assistance and pay for expenses
at the time of disablement. Original receipts should
be submitted to GMC Roadside Assistance for
reimbursement. A service representative will provide
assistance when you call.
The Roadside Assistance services listed are available to
retail lease customers operating 2003 GMC light duty
trucks for a period of 3 years/36,000 miles (60,000 km).
All services must be pre-arranged by GMC Roadside
Assistance.
Over-the-phone assistance, such as providing the name
of the closest dealer or minor technical advice, etc.,
is available to all owner/operators of GMC trucks,
regardless of vehicle or mileage.
Just dial GMC Roadside Assistance at 1-800-GMC-8782
(1-800-462-8782, Roadside Assistance prompt) to
reach a qualied representative who can assist you.
Text telephone (TTY) users, call 1-888-889-2438.
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A
Accessory Power Outlets.................................3-16
Activating the Theft-Deterrent Feature................3-47
Adding Equipment to Your Air Bag-Equipped
Vehicle.......................................................1-68
Adding Washer Fluid.......................................5-38
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-85
Add-On Equipment..........................................4-31
Adjusting the Speakers (Balance/Fade)......3-39, 3-42
Air Bag
Readiness Light..........................................3-26
Air Bag System..............................................1-62
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-68
How Does an Air Bag Restrain?....................1-66
Servicing Your Air Bag-Equipped Vehicle.........1-67
What Makes an Air Bag Inflate?....................1-65
What Will You See After an Air Bag Inflates? . . 1-66
When Should an Air Bag Inflate?...................1-65
Where Are the Air Bags?..............................1-64
Air Cleaner/Filter, Engine.................................5-21
All Overseas Locations...................................... 7-5
All-Wheel Drive...............................................5-48
All-Wheel Drive (AWD) System.........................2-26
All-Wheel-Drive Service Light............................3-34AM ...............................................................3-49
AM-FM Radio.................................................3-38
Antenna, Fixed Mast.......................................3-49
Anti-lock Brake System..................................... 4-7
Anti-Lock Brake, System Warning Light..............3-29
Appearance Care............................................5-76
Care of Safety Belts....................................5-79
Chemical Paint Spotting...............................5-82
Cleaning the Inside of Your Vehicle................5-77
Cleaning the Outside of Your Vehicle
..............5-79
Finish Damage
............................................5-82
GM Vehicle Care/Appearance Materials
..........5-83
Sheet Metal Damage
...................................5-82
Underbody Maintenance
...............................5-82
Weatherstrips
..............................................5-79
Ashtrays
........................................................3-17
Audio System(s)
.............................................3-37
AM-FM Radio
.............................................3-38
Care of Your CD Player
...............................3-49
Care of Your CDs
........................................3-49
Fixed Mast Antenna
.....................................3-49
Radio with CD
............................................3-40
Rear Seat Audio (RSA)
................................3-45
Setting the Time for Radios with HR and
MN Buttons
.............................................3-37
Setting the Time for Radios with the Set
Button
....................................................3-37
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Audio System(s) (cont.)
Theft-Deterrent Feature................................3-46
Understanding Radio Reception.....................3-49
Automatic Headlamp System............................3-13
Automatic Transmission
Fluid..........................................................5-22
Operation...................................................2-23
Automatic Transmission Check..........................6-28
Automatic Transmission Shift Lock Control
System Check.............................................6-30
B
Backing Up....................................................4-38
Battery..........................................................5-42
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-16
Before Leaving on a Long Trip.........................4-20
Bench Seat............................................1-11, 1-57
Body Lubrication Service..................................6-29
Brake
Parking......................................................2-26
System Inspection.......................................6-33
System Warning Light..................................3-28
Brake Adjustment............................................5-42
Brake Fluid....................................................5-39
Brake Pedal Travel.........................................5-42
Brake Wear...................................................5-41
Brakes..........................................................5-39Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-18
Bucket Seats, Rear.........................................1-12
Bulb Replacement...........................................5-50
Front Turn Signal Lamps..............................5-54
Halogen Bulbs............................................5-50
Headlamps.................................................5-51
Replacement Bulbs......................................5-56
Taillamps....................................................5-54
Buying New Tires...........................................5-60C
California Fuel.................................................. 5-5
Canada........................................................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Canceling the Sliding Door Security Lock...........2-12
Capacities and Specifications............................5-92
Carbon Monoxide...........................4-24, 4-31, 2-30
Care of
Safety Belts................................................5-79
Your CD Player...........................................3-49
Your CDs ...................................................3-49
Cargo Vans...........................................1-41, 1-48
Center Passenger Position, Safety Belts.............1-27
Chains, Tires..................................................5-64
Charging System Light....................................3-27
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Check
Engine Light...............................................3-30
Gages Warning Light...................................3-35
Checking Brake Fluid......................................5-40
Checking Coolant............................................5-26
Checking Engine Oil........................................5-13
Checking Things Under the Hood
....................... 5-9
Checking Your Restraint Systems
......................1-68
Chemical Paint Spotting
...................................5-82
Child Restraints
Child Restraint Systems
...............................1-44
Infants and Young Children
...........................1-38
Lower Anchorages and Top Tethers for
Children (LATCH System)
..........................1-52
Older Children
.............................................1-35
Securing a Child Restraint Designed for the
LATCH System
........................................1-54
Securing a Child Restraint in a Center Seat
Position
..................................................1-57
Securing a Child Restraint in a Rear Outside
Seat Position
...........................................1-54
Securing a Child Restraint in the Right Front
Seat Position
...........................................1-58
Top Strap
...................................................1-48
Top Strap Anchor Location
............................1-50
Where to Put the Restraint
...........................1-47
Cigarette Lighter
.............................................3-17Cleaning
Inside of Your Vehicle..................................5-77
Outside of Your Vehicle................................5-79
Underbody Maintenance...............................5-82
Weatherstrips..............................................5-79
Cleaning Aluminum Wheels..............................5-81
Cleaning Exterior Lamps/Lenses.......................5-80
Cleaning Fabric/Carpet....................................5-77
Cleaning Glass Surfaces..................................5-78
Cleaning Interior Plastic Components.................5-78
Cleaning Leather............................................5-78
Cleaning the Top of the Instrument Panel...........5-78
Cleaning the Windshield and Wiper Blades.........5-81
Cleaning Tires................................................5-81
Cleaning Vinyl................................................5-78
Climate Control System...................................3-18
Rear ..........................................................3-21
Rear Air Conditioning System........................3-20
Rear Heating System...................................3-19
Compact Disc Messages..................................3-44
Compact Spare Tire........................................5-75
Composite Headlamps.....................................5-51
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-45
Coolant
Engine Temperature Gage............................3-29
Heater, Engine............................................2-21
Cooling System..............................................5-30
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E
Electrical System
Add-On Equipment......................................5-85
Fuses and Circuit Breakers...........................5-86
Headlamp Wiring.........................................5-85
Power Windows and Other Power Options......5-85
Windshield Wiper Fuses...............................5-85
Emissions Inspection and
Maintenance Programs.................................3-32
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-42
Check and Service Engine Soon Light............3-30
Compartment Overview................................5-12
Coolant......................................................5-25
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-29
Cooling System Inspection............................6-32
Cover........................................................5-17
Exhaust.....................................................2-30
Fan Noise..................................................5-36
Oil .............................................................5-13
Overheating................................................5-28
Starting......................................................2-20
Engine Coolant Level Check.............................6-27
Engine Oil Additives........................................5-16
Engine Oil Level Check...................................6-27Entry Lighting.................................................3-15
Erasing HomeLink
®Buttons..............................2-37
Except Cargo Vans.................................1-38, 1-47
Exit Lighting...................................................3-15
Express-Down Window....................................2-17
Extender, Safety Belt.......................................1-34
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-21
Finding a Station....................................3-38, 3-41
Finish Care....................................................5-80
Finish Damage...............................................5-82
Fixed Mast Antenna........................................3-49
Flash-to-Pass................................................... 3-7
Flat Tire........................................................5-64
Flat Tire, Changing.........................................5-65
Fluid
Automatic Transmission................................5-22
Power Steering...........................................5-36
Windshield Washer
......................................5-37
FM
...............................................................3-49
Following Distance
..........................................4-37
Front Axle
......................................................5-49
Front Doors
..................................................... 2-8
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2003 - Safari OM