2003 GMC YUKON DENALI child lock

The 2003 GMC Yukon DenaIiNukon XL Denali
Owner Manual
Seats and Restraint Systems ........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-7
Safety Belts
............................................. 1-25
Child Restraints
....................................... 1-48
Air Bag Systems
...................................... 1-72
Restraint System Check
............................ 1-86
Features and Controls ..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
................................................. 2-14
Theft-Deterrent Systems
............................ 2-1 6
Starting and Operating Your Vehicle
....... 2-18
Mirrors
.................................................... 2-31
Onstar@
S stem ...................................... 2-36
HomeLink
J Transmitter ............................. 2-38
Storage Areas
......................................... 2-42
Sunroof
.................................................. 2-46
Vehicle Personalization
............................. 2-47
Instrument Panel ............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Warning Lights, Gages and Indicators
......... 3-28
Driver Information Center (DIC)
.................. 3-43
Climate Controls
...................................... 3-1 9
Audio System(s)
....................................... 3-58
Driving Your Vehicle ....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
................................................... 4-44
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood ............... 5-10
All-Wheel Drive
........................................ 5-46
Rear Axle ............................................... 5-48
Bulb Replacement
.................................... 5-49
Tires
...................................................... 5-55
Appearance Care ..................................... 5-78
Vehicle Identification
................................. 5-86
Electrical System
...................................... 5-87
Capacities and Specifications
..................... 5-96
Normal Maintenance Replacement Parts
...... 5-98
Maintenance Schedule
................................ 6-2
Customer Assistance Information .................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
............................ 7-9
Index ................................................................ 1
Service and Appearance Care .......................... 5-1
Windshield Wiper Blade Replacement
......... 5-54
Maintenance Schedule ..................................... 6-1

These are some examples of vehicle symbols you may find on your vehicle:
CAUTION
POSSIBLE
INJURY
PROTECT EYES BY
SHIELDING
CAUSTIC
BATTERY
ACID COULD CAUSE
BURNS
AVO ID
SPARKS
OR
FLAMES
SPARK
OR
FLAME '\I/'
COULD
EXPLODE BATTERY LATCH BOTH LAP AND
SHOULDER BELTS TO
PROTECT OCCUPANT
4
DO NOT TWIST SAFETY
BELT WHEN ATTACHING
FASTEN SEAT
BELTS
MOVE SEAT DO NOT INSTALL
A REAR-FACING
CHILD RESTRAINT
SECURE IN THIS SEATING
CHILD SEAT POSITION
FULLY
c REARWARD+ /3
PULL BELT DO NOT INSTALL A
COMPLETELY
THEN SECURE
CHILD SEAT FORWARD-FACING
CHILD RESTRAINT IN THIS SEATING
POSITION
POWER DOOR LOCK
WINDOW UNLOCK LIGHTING
- MASTER SWITCH u- 0 ,
LAMPS #O
ENGINE
COOLANT
-FA TEMP -
CHARGING Fl
BATTERY
SYSTEM
ENGINE OIL PRESSURE
9%77
ANTI-LOCK (@)
BRAKES
FUSE BOX
ACCESS
ENGINE
COOLANT FAN
OWNER'S MANUAL
SERVICE
SERVICE MANUAL
V

The best way to protect the fetus is to protect the
mother. When a safety belt is worn properly, it’s more
likely that the fetus won’t be hurt in a crash. For
pregnant women, as for anyone, the key to making
safety belts effective is Wearing them properly.
Right Front Passenger Position
To learn how to wear the right front passenger’s safety
belt properly, see Driver Position on page
1-30,
The right front passenger’s safety belt works the same
way
as the driver’s safety belt-except for one thing.
If you ever pull the shoulder portion of the belt out all the
way, you will engage the child restraint locking feature
which may turn
off the passenger’s frontal air bag. If this
happens unintentionally, just let the belt go back all
the way and start again.
Center Passenger Position
Second Row - Lap-Shoulder Belt
When you sit in the center seat position in the second
row you have a lap-shoulder belt which works the same
way as the rear outside seat positions. To learn how
to wear this belt, see “Lap-Shoulder Belt” under
Rear Seat Passengers on page
1-4 1.
1-39

6. To tighten the belt, feed the shoulder belt back into
the retractor while you push down on the child
restraint. If you are using a forward-facing child
restraint, you may find it helpful to use your knee to
push down on the child restraint as you tighten the
belt. You should not be able to pull more of the belt
out of the retractor once the lock has been set.
7. Push and pull the child restraint in different
directions to be sure it is secure.
8. If your vehicle has the passenger sensing system
and you’re using a rear-facing child restraint in this
seat, check to be sure the right front passenger’s
frontal air bag is off before you begin to drive.
If the
air bag has been turned off the
off indicator will
light and stay lit when the key is turned to RUN or
START.
If the on indicator is lit, the passenger’s frontal air
bag has not been turned
off. If this ever happens,
turn off the vehicle, unbuckle the safety belt
and perform the steps to install the rear-facing
restraint again. After restarting the vehicle,
if the air
bag still doesn’t turn off, install the infant restraint
in
a rear seat position of the vehicle and have your
vehicle serviced as soon as possible.
To remove the child restraint, just unbuckle the vehicle’s
safety belt and let it go back all the way. The safety
belt will move freely again and be ready to work for an
adult or larger child passenger.
1-71

Doors and Locks
Door Locks
doors can be dangerous.
Passengers - especially children - can
easily open the doors and fall out of a
moving vehicle. When a door is locked, the
handle won’t open
it. You increase the
chance of being thrown out of the vehicle
in a crash if the doors aren’t locked. So,
wear safety belts properly and lock the
doors whenever you drive.
vehicles may be unable to get out.
A child
can be overcome by extreme heat and can
suffer permanent injuries or even death
from heat stroke. Always lock your vehicle
whenever you leave
it.
CAUTION: (Continued)
Young children who get into unlocked
Outsiders can e ~ ily enter through an
unlocked door when you slow down or
stop your vehicle. Locking your doors can
help prevent this from happening.
There are several ways
to lock and unlock your vehicle.
To unlock the door from the outside, use the keyless
entry system
or the key.
To unlock the door from
the inside, slide the
manual lever
forward.
To lock the door, slide the
2-a

Rear Door Security Locks
With this feature, you can lock the rear doors so they
can’t be opened from the inside by passengers.
This feature is located
on the inside edge of the
rear doors.
To use one of the locks, do the following:
1. Open one of the rear doors.
2. Move the lever forward to engage the rear door
security lock.
3. Close the door.
4. Do the same thing to the other rear door.
The rear doors or your vehicle cannot be opened from the
inside when this feature is in use. If you want
to open the
rear door while the security lock is engaged, unlock the
door and open the door from the outside. Move the lever
rearward
to disengage the child security lock feature.
2-1 2

Speed limit signs near curves warn that you should
adjust your speed. Of course, the posted speeds
are based on good weather and road conditions. Under
less favorable conditions you’ll want to go slower.
If you need to reduce your speed as you approach a
curve, do it before you enter the curve, while your front
wheels are straight ahead.
Try
to adjust your speed so you can “drive” through the
curve. Maintain a reasonable, steady speed. Wait to
accelerate until you are out of the curve, and then
accelerate gently into the straightaway.
Steering in Emergencies
There are times when steering can be more effective
than braking. For example, you come over a hill and find
a truck stopped in your lane, or a car suddenly pulls
out from nowhere, or a child darts out from between
parked cars and stops right in front
of you. You
can avoid these problems by braking
- if you can stop
in time. But sometimes you can’t; there isn’t room.
That’s the time for evasive action
- steering around the
problem.
Your vehicle can perform very well in emergencies like
these. First apply your brakes.
See
Braking on page 4-6. It is better to remove as much
speed as you can from a possible collision. Then
steer around the problem, to the left or right depending
on the space available.
4-1
2
An emergency like this requires close attention and a
quick decision. If you are holding the steering wheel at
the recommended
9 and 3 o’clock positions, you
can turn it a full
180 degrees very quickly without
removing either hand. But you have to act fast, steer
quickly, and just as quickly straighten the wheel
once you have avoided the object.
The fact that such emergency situations are always
possible is a good reason
to practice defensive driving
at all times and wear safety belts properly.

Care of Your (cont.)
CD Changer
............................................... 3-88
CDs and DVDs
........................................... 3-88
Cargo Cover
.................................................. 2-45
Cassette Tape Messages
................................. 3-69
Cassette Tape Player Service
........................... 6-10
CD Adapter Kits
............................................. 3-69
CD Changer
................................................... 3-83
CD Functions
................................................. 3-84
Center Console Storage Area
........................... 2-42
Center High-Mounted Stoplamp (CHMSL)
........... 5-52
Center Instrument Panel Fuse Block
.................. 5-90
Center Passenger Position, Safety Belts
............. 1-39
Chains, Tires
.................................................. 5-62
Charging System Light
................................. 3-33
Check
Check Engine Light
........... ........... 3-38
CHECK OIL LEVEL
.............. ............... 3-53
Checking Brake Fluid
...................................... 5-37
CHANGE ENGINE
OIL .................................... 3-52
Engine Light
......... ................... 3-38
CHECK WASHER FLUID
............................. 3-55
Checking Coolant
................................. .... 5-24
Checking Engine Oil
..................................... 5-1 3
Checking Things Under the Hood
...................... 5-10
Checking Your Restraint Systems
................... 1-86
Chemical Paint Spotting
........ ................... 5-84
Child Restraints Child Restraint Systems
............................... 1-54
Infants and Young Children
........................... 1-50 Child Restraints (cont.)
Lower Anchorages and Top Tethers for
Older Children
............................................. 1-48
Securing
a Child Restrairit Designed for the
Securing a Child Restraint in a Center Rear
Securing
a Child Restraint in a Rear Outside
Securing a Child Restraint in the Right Front
Children
(LATCH System)
.......................... 1-61
LATCH System
........................................ 1-63
Seat Position
........................................... 1-65
Seat Position
........................................... 1-63
Seat Position
........................................... 1-68
Top Strap
................................................... 1-57
Cigarette Lighter
......................................... 3-18
Top
Strap Anchor Location
............................ 1-59
Where to Put the Restraint
........................... 1-56
Cleaning Inside of Your Vehicle
.............. ......... 5-78
Outside
of Your Vehicle ........ ............. 5-81
Underbody Maintenance ............................ 5-84
Video Screen
........................................... 3-89
Weatherstrips
.................................. ..... 5-80
Cleaning Exterior Lamps/Lenses
....................... 5-81
Cleaning the Mirror
......................................... 2-33
Climate Control System, Automatic
............................................... 3-19
Climate Control System Climate Controls Personalization
.................... 3-27
Outlet Adjustment
........................................ 3-25
Rear
.......................................................... 3-25