lights GMC YUKON DENALI 2003 Owners Manual

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

Vehicle Damage Warnings
Also, in this book you will find these notices:
Notice: These mean there is something that could
damage
your vehicle.
A notice will tell you about something that can damage
your vehicle. Many times, this damage would not be covered by your warranty, and
it could be costly. But the
notice will tell you what
to do to help avoid the
damage.
When you read other manuals, you might see CAUTION
and NOTICE warnings in different colors or in different
words.
You’ll also see warning labels on your vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
Your vehicle has components and labels that use
symbols instead of text. Symbols, used on your vehicle,
are shown along with the text describing the operation
or information relating
to a specific component, control,
message, gage or indicator.
If you need help figuring out a specific name of a
component, gage or indicator reference the following
topics:
Seats and Restraint Systems in Section 1
0 Features and Controls in Section 2
Instrument Panel Overview in Section 3
Climate Controls in Section 3
Warning Lights, Gages and Indicators in Section 3
0 Audio System(s) in Section 3
Engine Compartment Overview in Section 5
iv

Power Lumbar
Heated Seats
You can increase or
decrease lumbar support in an area of the lower
seatback.
To increase support, press and hold the front of the
control.
To decrease support, press and hold the rear of
the control. Let go of the control when the lower
seatback reaches the desired level of support.
You can also reshape the side wing area
of the lower
seatback for more lateral support.
To increase support, press and hold the top of the
control. To decrease support, press and hold the bottom
of the control. Let go of the control when the lower
seatback reaches the desired level
of support.
-1 control this feature are
The
buttons used
to
located on the front doors.
The engine must be
running for the heated seat
feature
to work.
To heat the entire seat, press the horizontal button with
the heated seat symbol. Press the button
to cycle
through the temperature settings
of high, medium and
low and
to turn the heated seat off. Indicator lights
will glow
to designate the level of heat selected, three
for high, two for medium, and one for low.
The low setting warms the seatback and cushion until
the seat temperature is near body temperature. The
medium and high settings heat the seatback and seat
cushion
to a slightly higher temperature. You will be able
to feel heat in about two minutes.
1 -4

Mirrors
Automatic Dimming Rearview Mirror
with Onstar@, Compass
and
Temperature Display
Your vehicle may have this feature. When on, an
electrochromic mirror automatically dims to the proper
level to minimize glare from lights behind you after dark.
The mirror also includes a duel display in the upper
right corner of the mirror face. The compass reading and
the outside temperature will both appear in the display
at the same time.
Temperature and Compass Display
Press the on/off button, located to the far left, briefly to
turn the comp/temp display on or
off.
If the display reads CAL, you will need to calibrate the
compass. For more information on calibration, see
below.
To adjust between Fahrenheit and Celsius do the
following:
1.
2. Press and hold the
on/off button for approximately
four seconds until either a flashing OF, or "C
appears.
Press the button again to change the display to the
desired unit
of measurement. After approximately
four seconds of inactivity, the new unit will be locked
in and the compass/temperature display will
return.
6 (On/Off): This is the on/off button.
2-31

Section 3 Instrument Panel
Instrument Panel Overview ............................... 3.4
Hazard Warning Flashers
................................ 3.5
Other Warning Devices ................................... 3.6
Horn
............................................................. 3.6
Tilt Wheel
..................................................... 3-6
Turn SignaVMultifunction Lever
......................... 3.7
Exterior Lamps
............................................. 3.13
Interior Lamps
.............................................. 3.16
Accessory Power Outlets
............................... 3.17
Ashtrays and Cigarette Lighter
........................ 3.18
Climate Controls ............................................ 3. 1 9
Electronic Climate Control System
................... 3.19
Outlet Adjustment
......................................... 3.25
Rear Climate Control System
......................... 3.25
Climate Controls Personalization
..................... 3.27
Warning Lights, Gages and Indicators ............. 3.28
Instrument Panel Cluster
................................ 3.29
Speedometer and Odometer
........................... 3.30
Tachometer
................................ ......... 3.30
~
Safety Belt Reminder Light ............................. 3.30
Air Bag Readiness Light
................................ 3.31
Passenger Air Bag Status Indicator ................ -3-32
Charging System Light
.................................. 3-33
Voltmeter Gage
............................................ 3-34
Brake System Warning Light
...................... 3-34
Anti-Lock Brake System Warning Light
........................................... 3-35
Traction
Off Light .......................................... 3-36
Transmission Temperature Gage
..................... 3-37
Malfunction Indicator Lamp
............................. 3-38
Oil Pressure Gage ........................................ 3-40
Security Light
............................................... 3-41
Tow/Haul Mode Light .................................... 3-42
Fuel Gage
................................................... 3-42
Low Fuel Warning Light
............................. 3-42
Engine Coolant Temperature Gage
.................. 3-36
Cruise Control
Light ...................................... 3-41
3- 1

Exterior Lamps
The control on the driver’s side of your instrument panel
operates the exterior lamps.
The exterior lamp control has four positions:
AUTO: Turn the control to this position to put the
system into automatic headlamp mode. The Daytime
Running Lamps (DRL) will also be activated
if it is light
enough outside.
A light near the symbol will be lit
when in this mode.
0 (Off): Turn the control to this position and release it
to turn
off all exterior lamps including the DRLs. A
light near the symbol will be lit when in this mode.
To turn the lamps back on when in this mode, turn the
switch to the headlamp mode. The
off mode will
cancel when the vehicle is turned
off. This mode is not
available for vehicles first sold in Canada.
:oo: (Parking Lamps): Turn the control to this position
to turn on the parking lamps, together with the
following:
Parking Lamps
Sidemarker Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
$0 (Headlamps): Turn the control to this position to
turn
on the headlamps, together with the previously
listed lamps and lights.
When the vehicle is turned
off and the headlamps are in
AUTO, the headlamps may automatically remain on
for a set time. You can change this delay time using the
DIC. See Driver hformation Center
(DIC) on page 3-43.
You can switch your headlamps from low to high-beam
by pushing the turn signaVmultifunction lever toward
the instrument panel.
3-1 3

Automatic Headlamp System
When it is dark enough outside and the headlamp
switch is in AUTO, your automatic headlamp system will
turn on your headlamps at the normal brightness
along with other lamps such as the taillamps,
sidemarker, parking lamps, roof marker lamps and the
instrument panel lights. The radio lights will also be dim.
To turn off the automatic headlamp system, turn the
exterior lamps switch
to the off position and then
release.
Your vehicle has a light sensor located on the top of the
instrument panel. Be sure
it is not covered, or the
system will be on whenever the ignition is on.
The system may also turn on your headlamps when
driving through a parking garage, heavy overcast
weather or a tunnel. This is normal.
There is a delay in the transition between the daytime
and nighttime operation of the Daytime Running
Lamps (DRL) and the automatic headlamp systems
so
that driving under bridges or bright overhead street
lights does not affect the system. The DRL and
automatic headlamp system will only be affected when
the light sensor sees a change in lighting lasting
longer than the delay. If
you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage,
it will take approximately
one minute for the automatic headlamp system to
change
to DRL if it is light outside. During that delay,
your instrument panel cluster may not be as bright
as usual. Make sure your instrument panel brightness
control is in the full bright position. See ”Instrument
Panel Brightness” under lnterior
Lamps on page 3-76.
Lamps On Reminder
If a door is open, a reminder chime will sound when
your headlamps or parking lamps are manually turned
on and your key is out of the ignition. To turn off
the chime, turn the headlamp switch
to off or AUTO and
then back on. In the automatic mode, the headlamps
turn off once the ignition is in LOCK and the headlamps
on at exit delay ends
(if enabled in the DIC).
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others
to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
first sold in Canada.
3-1 4

The fog lamps will be cancelled after the ignition is
turned
off. If you still want to use the fog lamps after you
restart the vehicle, you will need
to press the fog
lamp button again.
Interior Lamps
Instrument Panel Brightness
The thumbwheel for this feature is located next to the
exterior lamps control.
G:~ (Instrument Panel Lights): Turn the thumbwheel,
located next
to the exterior lamps control, up or
down to brighten or dim the instrument panel lights and
the radio display. This will only work
if the headlamps
or parking lamps are on.
To turn on the dome lamps, with the vehicle doors
closed, turn the thumbwheel all the way up.
Dome Lamps
The dome lamps will come on when you open a door
and will slowly dim
to off when all doors are closed.
You can also turn the dome lamps on by turning
the thumbwheel, located next to the exterior lamp
control, all the way up. In this position, the dome lamps
will remain on whether a door is opened or closed.
(Dome Override): Press this button, located below
the exterior lamp control,
to set the dome lamps to
come on automatically when a door is opened, or remain
off. To turn the lamps off, press the button into the in
position. With the button in this position, the dome lamps
will remain
off when the doors are open. To return the
lamps
to automatic operation, press the button again
and return it
to the out position. With the button in this
position, the dome lamps will come on when you
open a door.
Entry Lighting
Your vehicle is equipped with an illuminated entry
feature.
When a door is opened, the dome lamps and puddle
lamps will come
on if the dome override button is in the
out position. If the dome override button is pressed
in, the lamps will not come on.
Exit Lighting
With exit lighting, the interior lamps will come on when
you remove the key from the ignition. The lamps
will not come on
if the dome override button is
pressed in.
3-1 6

Warning Lights, Gages and
Indicators
This part describes the warning lights and gages on
your vehicle. The pictures will help you locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough
to cause
an expensive repair or replacement. Paying attention
to
your warning lights and gages could also save you
or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions.
As you will
see in the details on the next few pages, some
warning lights come on briefly when you start the
engine
just to let you know they’re working. If you are
familiar with this section, you should not be alarmed
when this happens. Gages can indicate
when there may be or
is a problem
with one of your vehicle’s functions. Often gages
and warning lights work together
to let you know when
there’s a problem with your vehicle.
When one of the warning lights comes on and stays on
when you are driving, or when one of the gages
shows there may be a problem, check the section that
tells you what to do about it. Please follow this
manual’s advice. Waiting to do repairs can be
costly
- and even dangerous. So please get to know
your warning lights and gages. They’re
a big help.
Your vehicle also has a message center that works
along with warning lights and gages. See
DIC Warnings
and Messages on page
3-52.
3-28

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. See Passenger Sensing System on page
7 -8 7
for more on this, including important safety information.
If, after several seconds, all status indicator lights
remain on, or
if there are no lights at all, there may be a
problem with the lights or the passenger sensing
system. See your dealer for service.
__ -he ofl ..jdicator and the air bag readiness
light ever come on together, it means that
something may be wrong with the air bag
system.
If this ever happens, have the vehicle
serviced promptly, because an adult-size
person sitting in the right front passenger seat
may not have the protection of the frontal air
bag. See “Air Bag Readiness Light” in the
Index.
Charging System Light
The charging system light
will come on briefly when you turn on the ignition,
but the engine is
not
running, as a check to
show you it
is working.
It should go out once the engine is running. If it stays
on, or comes on while you are driving, you may have a
problem with the charging system.
It could indicate
that you have problems with a generator drive belt, or
another electrical problem. Have it checked right
away. Driving while this light is on could drain your
battery.
When this light comes on the DIC will also display the
battery not charging message. See
DIC Warnings
and Messages
on page 3-52.
If you must drive a short distance with the light on, be
certain to turn
off all your accessories, such as the radio
and air conditioner.
3-33