2003 GMC YUKON child restraint

The passenger sensing system is designed to turn off
the right front passenger’s frontal air bag if:
•the right front passenger seat is unoccupied
•the system determines that an infant is present in a
rear-facing infant seat
•the system determines that a small child is present
in a forward-facing child restraint
•the system determines that a small child is present
in a booster seat
•a right front passenger takes his/her weight off of
the seat for a period of time
•the right front passenger seat is occupied by a
smaller person, such as a child who has outgrown
child restraints
•or if there is a critical problem with the air bag
system or the passenger sensing system.
When the passenger sensing system has turned off the
passenger’s frontal air bag, the off indicator will light
and stay lit to remind you that the air bag is off.
The passenger sensing system is designed to turn off
the passenger’s frontal air bag when a rear facing infant
seat, a forward-facing child restraint or a booster seatis detected. If the child restraint has been installed and
the on indicator is lit, turn the vehicle off, remove
the child restraint from the vehicle and reinstall the
restraint following the child restraint manufacturer’s
directions and refer toSecuring a Child Restraint in the
Right Front Seat Position on page 1-66of this manual.
If after reinstalling the child restraint and restarting
the vehicle, the on indicator is still lit, secure the child in
the child restraint in a rear seat position in the vehicle
and check with your dealer.
The passenger sensing system is designed to enable
(may inflate) the right front passenger’s frontal air
bag anytime the system senses that a person of adult
size is sitting properly in the right front passenger’s seat.
When the passenger sensing system has allowed the
air bag to be enabled, the on indicator will light and stay
lit to remind you that the air bag is active.
For some children who have outgrown child restraints
and for very small adults, the passenger sensing system
may or may not turn off the right front passenger’s
frontal air bag, depending upon the person’s seating
posture and body build. Everyone in your vehicle
who has outgrown child restraints should wear a safety
belt properly—whether or not there is an air bag
for that person.
1-83
2003 - Yukon/Yukon XL

When the ignition key is turned to RUN or START, the
passenger air bag status indicator will light ON and
OFF, or the symbol for on and off, for several seconds
as a system check. Then, after several more seconds,
the status indicator will light either ON or OFF, or either
the on or off symbol to let you know the status of the
right front passenger’s frontal air bag.If the word ON or the on symbol is lit on the passenger
air bag status indicator, it means that the right front
passenger’s frontal air bag is enabled (may inflate).
{CAUTION:
If the on indicator comes on when you have a
rear-facing child restraint installed in the right
front passenger’s seat, it means that the
passenger sensing system has not turned off
the passenger’s frontal air bag. A child in a
rear-facing child restraint can be seriously
injured or killed if the right front passenger’s
air bag inates. This is because the back of
the rear-facing child restraint would be very
close to the inating air bag. Don’t use a
rear-facing child restraint in the right front
passenger’s seat unless the air bag has been
turned off.
If the word OFF or the off symbol is lit on the air bag
status indicator, it means that the passenger sensing
system has turned off the right front passenger’s frontal
air bag. SeePassenger Sensing System on page 1-81
for more on this, including important safety information. Passenger Air Bag Status Indicator–United States
Passenger Air Bag
Status Indicator
–Canada
3-41
2003 - Yukon/Yukon XL

Using heavier suspension components to get added
durability might not change your weight ratings. Ask your
dealer to help you load your vehicle the right way.
If you put things inside your vehicle–like suitcases,
tools, packages, or anything else–they go as fast
as the vehicle goes. If you have to stop or turn quickly,
or if there is a crash, they’ll keep going.
{CAUTION:
Things you put inside your vehicle can strike
and injure people in a sudden stop or turn, or
in a crash.
•Put things in the trunk of your vehicle. In a
trunk, put them as far forward as you can.
Try to spread the weight evenly.
•Never stack heavier things, like suitcases,
inside the vehicle so that some of them
are above the tops of the seats.
•Don’t leave an unsecured child restraint in
your vehicle.
•When you carry something inside the
vehicle, secure it whenever you can.There’s also important loading information for off-road
driving in this manual. See″Loading Your Vehicle
for Off-Road Driving″in the Index.
Level Control
Self-Adjusting
The self-adjusting rear suspension is available on
C/K 1500 vehicles and is available with the premium
smooth ride suspension package.
This type of level control will provide a leveled riding
position as well as improved handling under a variety of
passenger and loading conditions. A hydraulic pump
inside each rear shock absorber raises the rear of
the vehicle to the proper height, based on inputs from
the road surface, while the vehicle is being driven.
It takes approximately 2 miles (3.2 km) of driving for the
leveling to complete, depending on the road surface
conditions.
If the loaded vehicle is not moved for approximately
twelve hours, the leveling system may bleed down to a
lower height. This can be especially apparent if a trailer is
left attached to a parked vehicle for long periods of time.
The vehicle must be driven to re-level the vehicle.
If a self-equalizing hitch is being used, the vehicle
should be driven approximately 2 miles (3.2 km) with the
trailer prior to adjusting (leveling) the hitch.
4-59
2003 - Yukon/Yukon XL

C
California Fuel.................................................. 5-5
Canada........................................................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Specifications..........................5-106
Car Washes for QUADRASTEER™Equipped
Vehicles.....................................................4-19
Carbon Monoxide...................4-47, 4-61, 2-12, 2-38
Care of
Safety Belts................................................5-91
Your Cassette Tape Player..........................3-124
Your CD and DVD Player...........................3-125
Your CDs and DVDs ..................................3-125
Cargo Cover..................................................2-57
Cargo Tie Downs............................................2-57
Cassette Tape Messages.................................3-94
Cassette Tape Player Service...........................6-11
CD Adapter Kits.............................................3-95
Center Console Storage Area...........................2-54
Center Instrument Panel Fuse Block................5-100
Center Passenger Position, Safety Belts.............1-36
Chains, Tires..................................................5-68
CHANGE ENGINE OIL
....................................3-64
Check
Engine Light
...............................................3-48
Check Engine Light
.........................................3-48
CHECK OIL LEVEL
.........................................3-68
CHECK WASHER FLUID
.................................3-68Checking Brake Fluid......................................5-41
Checking Coolant............................................5-28
Checking Engine Oil........................................5-16
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-86
Chemical Paint Spotting...................................5-94
Child Restraints
Child Restraint Systems...............................1-50
Infants and Young Children...........................1-46
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-58
Older Children.............................................1-44
Securing a Child Restraint Designed for the
LATCH System........................................1-61
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-64
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-61
Securing a Child Restraint in the Center Front
Seat Position...........................................1-66
Securing a Child Restraint in the Right Front
Seat Position...........................................1-66
Top Strap...................................................1-54
Top Strap Anchor Location............................1-55
Where to Put the Restraint
...........................1-53
Chime Level Adjustment
.................................3-126
Cigarette Lighter
.............................................3-21
Cleaning
Inside of Your Vehicle
..................................5-89
Outside of Your Vehicle
................................5-92
3
2003 - Yukon/Yukon XL

H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamp High/Low-Beam Changer.................... 3-9
Headlamps....................................................5-53
Bulb Replacement.......................................5-52
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-54
Halogen Bulbs............................................5-53
Roof Marker Lamps.....................................5-55
Side Identification Marker Lamps...................5-55
Headphones.................................................3-117
Heated Seats................................................... 1-5
Heating.........................................................3-30
Highway Hypnosis...........................................4-44
Hill and Mountain Roads..................................4-45
Hitches..........................................................4-67
HomeLink Transmitter, Programming..................2-51
HomeLink
®Transmitter....................................2-50
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-7
How to Add Coolant to the Coolant Surge Tank......5-34
How to Add Fluid
............................................5-25
How to Check
........................................5-23, 5-61
How to Check Lubricant
...................................5-50How to Check Power Steering Fluid..................5-39
How to Inspect...............................................5-21
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-27
Hydroplaning..................................................4-40
I
If No Steam Is Coming From Your Engine..........5-31
If Steam Is Coming From Your Engine...............5-30
If the Light is Flashing.....................................3-49
If the Light Is On Steady.................................3-49
If You Are Stuck in Sand, Mud, Ice or Snow.......4-52
If You Do Decide To Pull A Trailer.....................4-62
If You’re Caught in a Blizzard...........................4-50
Ignition Positions.............................................2-19
Ignition Transmission Lock Check......................6-14
Infants and Young Children, Restraints...............1-46
Inflation -- Tire Pressure..................................5-61
Inspection
Brake System.............................................6-16
Engine Cooling System................................6-16
Exhaust System..........................................6-15
Fuel System...............................................6-15
Part C - Periodic Maintenance.......................6-15
Steering and Suspension..............................6-15
Transfer Case and Front Axle
(Four-Wheel Drive)...................................6-16
8
2003 - Yukon/Yukon XL

Instrument Panel
Cluster.......................................................3-38
Overview..................................................... 3-4
Instrument Panel Brightness.............................3-18
Instrument Panel Fuse Block............................5-98
Interior Lamps................................................3-18
J
Jump Starting.................................................5-44
K
Key Lock Cylinders Service..............................6-12
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Lamps
Exterior......................................................3-14
Interior.......................................................3-18
Lamps On Reminder.......................................3-16
Lap Belt........................................................1-37
Lap-Shoulder Belt...........................................1-28
LATCH System
Child Restraints...........................................1-58
Securing a Child Restraint Designed for the
LATCH System........................................1-61Leaving Your Vehicle With the Engine Running . . . 2-36
LEFT REAR DOOR AJAR................................3-69
Level Control..................................................4-59
Liftgate..........................................................2-12
Liftgate Glass and Liftgate................................2-13
Light
Air Bag Readiness.......................................3-40
Anti-Lock Brake System Warning...................3-44
Battery Warning..........................................3-42
Brake System Warning.................................3-43
Cruise Control.............................................3-52
Low Fuel Warning.......................................3-53
Malfunction Indicator....................................3-48
Passenger Air Bag Status Indicator................3-40
Safety Belt Reminder...................................3-39
Tow/Haul Mode...........................................3-52
Traction Off................................................3-45
Lighted Visor Vanity Mirror...............................2-16
Listening to a DVD................................3-97, 3-110
Loading Your Vehicle.......................................4-58
Loading Your Vehicle for Off-Road Driving..........4-25
Locking Rear Axle...........................................4-12
Lockout Protection..........................................2-12
Lock-Out Switch
.............................................2-15
Locks
Delayed Locking
........................................... 2-9
Door
........................................................... 2-7
Lockout Protection
.......................................2-12
Power Door
.................................................. 2-8
Programmable Automatic Door Locks
............... 2-9
9
2003 - Yukon/Yukon XL

Mirrors (cont.)
Outside Manual Mirrors................................2-45
Outside Power Camper-Type.........................2-47
Outside Power Foldaway Mirrors....................2-47
Outside Power Mirrors..................................2-46
Model Reference................................................ vi
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-18
Normal Maintenance Replacement Parts...........5-109
O
Odometer......................................................3-39
Off-Road Recovery..........................................4-19
Oil
Engine.......................................................5-16
Pressure Gage............................................3-51
OIL PRESSURE LOW .....................................3-65
Older Children, Restraints................................1-44
Online Owner Center........................................ 7-3
OnStar
®Personal Calling.................................2-49
OnStar®Services............................................2-49
OnStar®Steering Wheel Controls......................2-50
OnStar®System.............................................2-48
OnStar®Virtual Advisor....................................2-49
Operating Your All-Wheel-Drive Vehicle Off
Paved Roads..............................................4-22Other Warning Devices...................................... 3-7
Outlet Adjustment...................................3-25, 3-31
Outside
Automatic Dimming Mirror.............................2-47
Camper-Type Mirrors....................................2-46
Convex Mirror.............................................2-48
Curb View Assist Mirrors..............................2-47
Heated Mirrors............................................2-48
Manual Mirrors............................................2-45
Power Foldaway Mirrors...............................2-47
Power Mirrors.............................................2-46
Outside Power Camper-Type Mirror...................2-47
Overheated Engine Protection Operating Mode
(V8 Engines Only).......................................5-29
Owners, Canadian............................................... ii
Owner’s Information........................................7-11
P
Panel Doors...................................................2-13
Park (P)
Shifting Out of............................................2-37
Parking
Brake........................................................2-34
Over Things That Burn.................................2-38
Parking Brake and Automatic Transmission Park
(P) Mechanism Check..................................6-14
Parking on Hills..............................................4-71
Park(P)
Shifting Into................................................2-35
11
2003 - Yukon/Yukon XL

S
Safety Belt
Reminder Light............................................3-39
Safety Belts
Care of ......................................................5-91
Center Passenger Position............................1-36
Driver Position............................................1-28
How to Wear Safety Belts Properly................1-27
Questions and Answers About Safety Belts.....1-27
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-41
Rear Seat Passengers.................................1-38
Right Front Passenger Position......................1-36
Safety Belt Extender....................................1-43
Safety Belt Use During Pregnancy.................1-35
Safety Belts Are for Everyone.......................1-22
Safety Chains.................................................4-67
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-27
Scheduled Maintenance..................................... 6-5
Seat
Head Restraints
............................................ 1-8
Seats
50/50 Split Bench Seat
.................................1-11
60/40 Split Bench Seat
.................................. 1-9
Bench Seat
................................................1-15
Bucket Seats, Rear
......................................1-20
Heated Seats
............................................... 1-5
Manual
........................................................ 1-3Seats (cont.)
Memory .....................................................2-58
Power Lumbar .............................................. 1-5
Power Seats................................................. 1-4
Rear Seat Operation...................................... 1-8
Reclining Seatbacks...................................... 1-6
Second Row..................................................1-64
Secondary Latch System.................................5-84
Securing a Child Restraint
Center Front Seat Position............................1-66
Center Rear Seat Position............................1-64
Designed for the LATCH System...................1-61
Rear Outside Seat Position...........................1-61
Right Front Seat Position..............................1-66
Select Button.................................................3-64
Self-Adjusting.................................................4-59
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-48
Publications Ordering Information...................7-10
SERVICE 4 WHEEL STEER.............................3-67
SERVICE 4WD ...............................................3-67
SERVICE AIRBAG ..........................................3-65
SERVICE BRAKE BOOSTER...........................3-66
SERVICE BRAKE SYSTEM
.............................3-65
Service Bulletins
.............................................7-10
Service Manuals
.............................................7-10
SERVICE RIDE CONTROL
..............................3-67
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2003 - Yukon/Yukon XL