ECU GMC SAFARI 2003 Service Manual

Removing the Spare Tire and Tools
The jacking equipment you’ll need is stored by your
vehicle’s rear doors, along the passenger’s side wall.
1. Remove the jack cover by pulling it away from
the side wall and down to release the tabs
securing the top of the cover.2. Remove the wheel blocks by turning the top nut
counterclockwise. Remove the nut and washer,
then pull the wheel blocks off the bolt.
3. Push down on the bolt and remove the hooked end
from the slot. Slide the jack toward the front of the
vehicle and lift it from the mounting. Remove
the extension and the ratchet from the pouch.
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2003 - Safari OM

Storing a Flat or Spare Tire and Tools
{CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone. Store
all these in the proper place.
1. Put theflat tire on the ground at the rear of the
vehicle with the valve stem pointed down.
2. Tilt the retainer plate downward and through the
wheel opening. Make sure it is fully seated across
the underside of the wheel. Attach the ratchet,
with the UP side facing you, to the extension.
3. Put theflat end of the extension on an angle
through the hole in the rear door frame, above
the bumper.
The compact spare is for temporary use only.
Replace the compact spare tire with a full-size tire
as soon as you can. SeeCompact Spare Tire
on page 5-75. See the storage instructions label to
restore your compact spare properly.4. Raise the tire fully against the underside of the
vehicle by turning the ratchet/wheel wrench until
you hear two clicks or feel it skip twice. The spare
tire hoist cannot be overtightened.
5. Make sure the tire is stored securely. Push, pull,
and then try to rotate or turn the tire. If the tire
moves, use the ratchet/wheel wrench to tighten the
cable.
Return the jacking equipment to its proper location.
Compact Spare Tire
Although the compact spare tire was fully inflated when
your vehicle was new, it can lose air after a time.
Check the inflation pressure regularly. It should be
60 psi (420 kPa).
After installing the compact spare on your vehicle, you
should stop as soon as possible and make sure
your spare tire is correctly inflated. The compact spare
is made to perform well at speeds up to 65 mph
(105 km/h) for distances up to 3,000 miles (5 000 km),
so you canfinish your trip and have your full-size
tire repaired or replaced where you want. Of course, it’s
best to replace your spare with a full-size tire as
soon as you can. Your spare will last longer and be in
good shape in case you need it again.
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2003 - Safari OM

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

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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2003 - Safari OM

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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K
Key Lock Cylinders Service..............................6-29
Keyless Entry System....................................... 2-4
Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-12
Interior.......................................................3-15
Lamps On Reminder.......................................3-13
Lap Belt........................................................1-27
Lap-Shoulder Belt...................................1-19, 1-29
LATCH System
Child Restraints...........................................1-52
Securing a Child Restraint Designed for the
LATCH System........................................1-54
Latches, Seatback............................................ 1-6
Leaving Your Vehicle.......................................2-10
Leaving Your Vehicle With the Engine
Running.....................................................2-28
Light
Air Bag Readiness.......................................3-26
Anti-Lock Brake System Warning...................3-29
Brake System Warning.................................3-28Light (cont.)
Charging System.........................................3-27
Check Gages Warning.................................3-35
Low Fuel Warning.......................................3-36
Malfunction Indicator....................................3-30
Safety Belt Reminder
...................................3-25
Security
.....................................................3-34
Service All-Wheel-Drive
................................3-34
Tow/Haul Mode
...........................................3-35
Loading Your Vehicle
.......................................4-29
Locking Rear Axle
............................................ 4-8
Locks
Door
........................................................... 2-7
Front Doors
.................................................. 2-8
Leaving Your Vehicle
....................................2-10
Power Door
.................................................. 2-8
Programmable Automatic Door Locks
............... 2-9
Long Trip/Highway Definition
.............................. 6-6
Long Trip/Highway Intervals
............................... 6-6
Long Trip/Highway Scheduled Maintenance
........6-19
Loss of Control
...............................................4-13
Low Fuel Warning Light
...................................3-36
Luggage Carrier
..............................................2-45
Lumbar
Manual Controls
............................................ 1-3
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2003 - Safari OM

Restraint Systems
Checking....................................................1-68
Replacing Parts...........................................1-69
Retained Accessory Power (RAP)......................2-20
Right Front Passenger Position, Safety Belts......1-27
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle To Get It Out...................4-28
Running Your Engine While You Are Parked.......2-31
S
Safety Belt
Reminder Light............................................3-25
Safety Belts
Care of
......................................................5-79
Center Passenger Position
............................1-27
Driver Position
............................................1-19
How to Wear Safety Belts Properly
................1-18
Questions and Answers About Safety Belts
.....1-17
Rear Safety Belt Comfort Guides for Children
and Small Adults
......................................1-32
Rear Seat Passengers
.................................1-29
Right Front Passenger Position
......................1-27
Safety Belt Extender
....................................1-34Safety Belts (cont.)
Safety Belt Use During Pregnancy.................1-26
Safety Belts Are for Everyone.......................1-13
Safety Chains.................................................4-36
Safety Warnings and Symbols.............................. iii
Sealed Beam Headlamp..................................5-51
Seat
Head Restraints............................................ 1-5
Seatback Latches............................................. 1-6
Seats
Bench Seat................................................1-11
Bucket Seats, Rear......................................1-12
Manual........................................................ 1-2
Manual Lumbar............................................. 1-3
Power Seat.................................................. 1-3
Rear Seat Operation...................................... 1-7
Reclining Seatbacks...................................... 1-4
Seatback Latches.......................................... 1-6
Securing a Child Restraint
Center Seat Position....................................1-57
Designed for the LATCH System...................1-54
Rear Outside Seat Position...........................1-54
Right Front Seat Position..............................1-58
Security Light.................................................3-34
Selecting the Fan Speed..................................3-20
Selecting the Right Schedule, Maintenance.......... 6-5
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2003 - Safari OM

Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
All-Wheel-Drive Light....................................3-34
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-30
Publications Ordering Information...................7-10
Service Bulletins.............................................7-10
Service Engine Soon Light in the United States
or Check Engine Light
in Canada..................................................3-30
Service Manuals.............................................7-10
Servicing Your Air Bag-Equipped Vehicle............1-67
Setting Preset Stations............................3-38, 3-41
Setting the Temperature...................................3-20
Setting the Time
Radios with HR and MN Buttons...................3-37
Radios with the Set Button...........................3-37
Setting the Tone (Bass/Treble)..................3-39, 3-42
Sheet Metal Damage.......................................5-82
Shifting Into Park (P).......................................2-27
Shifting Out of Park (P)...................................2-29
Short Trip/City Definition.................................... 6-5
Short Trip/City Intervals..................................... 6-5
Short Trip/City Scheduled Maintenance................ 6-7Shoulder Belt Height Adjuster...........................1-20
Skidding........................................................4-13
Sliding Door Security Lock...............................2-11
Sliding Side Door............................................2-10
Some Other Rainy Weather Tips.......................4-18
Spare Tire Check............................................6-28
Special Fabric Cleaning Problems.....................5-77
Specifications, Capacities.................................5-92
Speedometer..................................................3-25
Starter Switch Check.......................................6-29
Starting Your Engine.......................................2-20
Steering
.......................................................... 4-9
Steering in Emergencies
..................................4-10
Steering, Suspension and Front Drive Axle Boot
and Seal Inspection
.....................................6-32
Steering Tips
................................................... 4-9
Storage Areas
................................................2-38
Convenience Net
.........................................2-45
Luggage Carrier
..........................................2-45
Overhead Console
.......................................2-39
Storing a Flat or Spare Tire and Tools
...............5-75
Stuck in Sand, Mud, Ice or Snow
......................4-28
Sun Visors
.....................................................2-17
Sunglasses Storage Compartment
.....................2-44
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2003 - Safari OM