2004 GMC YUKON airbag

Passenger Air Bag Indicator
Your mirror may be equipped with a passenger air bag
indicator on the mirror glass, just above the buttons.
If you have this feature the mirror will display the word
ON, or an airbag symbol in Canada, when the
passenger air bag is enabled. For more information see
Passenger Sensing System on page 1-82
Cleaning the Mirror
When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner. Do not spray
glass cleaner directly on the mirror as that may cause
the liquid cleaner to enter the mirror housing.
Outside Manual Mirrors
Adjust your outside mirrors so you can just see the side of
your vehicle and have a clear view of objects behind you.
The mirrors can be folded in to enter narrow areas.
The use of hood-mounted air deectors and add-on
convex mirror attachments may adversely affect mirror
performance.
Outside Camper-Type Mirrors
If your vehicle is equipped with camper-type mirrors,
they can be adjusted so you can have a clear view
of the objects behind you.
Pull out the mirror head to extend it for better visibility
when towing a trailer.
2-49

DIC Warnings and Messages
Warning messages are displayed on the DIC to notify
the driver that the status of the vehicle has changed and
that some action may be needed by the driver to
correct the condition. If there is more than one message
that needs to be displayed they will appear one after
another. Some messages may not require immediate
action but you should press the select button to
acknowledge that you received the message and clear it
from the display. Some messages cannot be cleared
from the display because they are more urgent. These
messages require action before they can be removed
from the DIC display. The following are the possible
messages that can be displayed and some information
about them.
BATTERY NOT CHARGING
If the battery is not charging during operation, this
message will appear on the DIC. Driving with this
problem could drain your battery. Have the electrical
system checked as soon as possible. Press the select
button to acknowledge this message and clear it
from the DIC display.
BUCKLE SEATBELT
If your vehicle is equipped with the passenger sensing
system, this message reminds you to buckle the
driver’s and/or passenger’s seatbelt. SeePassenger
Sensing System on page 1-82. The message will come
on and a chime will sound when the ignition is in
RUN and the following conditions occur:
The driver’s seatbelt is unbuckled.
The driver’s seatbelt is unbuckled and the
passenger’s seatbelt is unbuckled with the
passenger airbag enabled.
Press the select button to acknowledge the message
and clear it from the DIC display.
BUCKLE PASSENGER
If your vehicle is equipped with the passenger sensing
system, this message reminds you to buckle the
passenger’s seatbelt. SeePassenger Sensing System
on page 1-82. This message will come on and a
chime will sound when the ignition is in RUN and the
driver’s seatbelt is buckled and the passenger’s seatbelt
is unbuckled with the passenger airbag enabled.
Press the select button to acknowledge this message
and clear it from the DIC display.
3-70

PASSENGER DOOR AJAR
If the passenger’s door is not fully closed, this message
will appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Press the select
button to acknowledge the message and clear it from
the DIC display.
REAR ACCESS OPEN
If the liftgate is open while the ignition is in RUN, this
message will appear on the DIC display and you
will hear a chime. Turn the vehicle off and check the
liftgate. Restart the vehicle and check for the message
on the DIC display. Press the select button to
acknowledge the message and clear it from the DIC
display.
REDUCED ENGINE POWER
This message is displayed when the cooling system
temperature gets too hot and the engine further enters
the engine coolant protection mode.
SeeEngine Overheating on page 5-29for further
information.
REPLACE LIFTGATE FUSE
This message will be displayed if the liftgate lock
malfunctions and/or the liftgate fuse blows. For more
information on fuses, seeFuses and Circuit Breakers on
page 5-113.
If the message returns after replacing the fuse, see you
dealer for service.
RIGHT REAR DOOR AJAR
If the passenger’s side rear door is not fully closed, this
message will appear on the display and you will hear
a chime. Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if
the message still appears on the DIC. Press the select
button to acknowledge the message and clear it
from the DIC display.
SERVICE AIRBAG
If there is a problem with the air bag system, this
message will be displayed on the DIC. Have a qualied
technician inspect the system for problems. Press
the select button to acknowledge this message and clear
it from the DIC display.
3-73

Vehicle Data Collection and Event
Data Records
Your vehicle, like other modern motor vehicles, has a
number of sophisticated computer systems that monitor
and control several aspects of the vehicle’s performance.
Your vehicle uses on-board vehicle computers to monitor
emission control components to optimize fuel economy,
to monitor conditions for airbag deployment and, if so
equipped, to provide anti-lock braking and to help the
driver control the vehicle in difficult driving situations.
Some information may be stored during regular
operations to facilitate repair of detected malfunctions;
other information is stored only in a crash or near crash
event by computer systems commonly called event data
recorders (EDR).In a crash or near crash event, computer systems, such
as the Airbag Sensing and Diagnostic Module (SDM) in
your vehicle may record information about the condition
of the vehicle and how it was operated, such as engine
speed, brake applications, throttle position, vehicle
speed, seat belt usage, airbag readiness, airbag
performance data, and the severity of a collision. This
information has been used to improve vehicle crash
performance and may be used to improve crash
performance of future vehicles and driving safety. Unlike
the data recorders on many airplanes, these on-board
systems do not record sounds, such as conversation of
vehicle occupants.
To read this information, special equipment is needed
and access to the vehicle or the SDM is required.
GM will not access information about a crash event or
share it with others other than
with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the lessee,
in response to an official request of police or similar
government office,
as part of GM’s defense of litigation through the
discovery process, or
as required by law.
7-10

A
Accessory Power Outlets.................................3-21
Adding Washer Fluid.......................................5-40
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-113
Adjustable Throttle and Brake Pedal..................2-23
Adjusting the Speakers
(Balance/Fade)..................3-80, 3-84, 3-96, 3-111
After Off-Road Driving.....................................4-36
Air Bag
Passenger Status Indicator...........................3-43
Readiness Light..........................................3-43
Air Bag Systems.....................................1-72, 1-78
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-86
How Does an Air Bag Restrain?....................1-79
Passenger Sensing System...........................1-82
Servicing Your Air Bag-Equipped Vehicle.........1-86
What Makes an Air Bag Inate?....................1-79
What Will You See After an Air Bag
Inates?..................................................1-80
When Should an Air Bag Inate?...................1-77
Where Are the Air Bags?..............................1-75
Air Cleaner/Filter, Engine.................................5-21
Air Conditioning..............................................3-31
Airbag Sensing and Diagnostic Module (SDM).......7-10
All Overseas Locations...................................... 7-5
All-Wheel Drive...............................................5-51All-Wheel Drive with Stabilitrak
®........................2-33
AM .............................................................3-137
AM-FM Radio.................................................3-78
Antenna, Fixed Mast......................................3-139
Antenna, XM™ Satellite Radio Antenna
System.....................................................3-139
Anti-lock Brake System..................................... 4-7
Anti-Lock Brake, System Warning Light..............3-47
Appearance Care..........................................5-103
Care of Safety Belts...................................5-106
Chemical Paint Spotting..............................5-110
Cleaning the Inside of Your Vehicle..............5-104
Cleaning the Outside of Your Vehicle............5-107
Finish Damage..........................................5-109
Sheet Metal Damage..................................5-109
Underbody Maintenance.............................5-109
Vehicle Care/Appearance Materials...............5-110
Weatherstrips............................................5-106
Approaching a Hill..........................................4-28
Ashtrays........................................................3-21
Audio Output................................................3-131
Audio System(s).............................................3-77
AM-FM Radio.............................................3-78
Audio Steering Wheel Controls....................3-136
Care of Your Cassette Tape Player...............3-137
Care of Your CD and DVD Player................3-139
Care of Your CDs and DVDs.......................3-138
Chime Level Adjustment.............................3-139
Fixed Mast Antenna...................................3-139
Radio with Cassette and CD.........................3-92
1

Safety Belts (cont.)
Right Front Passenger Position......................1-37
Safety Belt Extender....................................1-44
Safety Belt Use During Pregnancy.................1-36
Safety Belts Are for Everyone.......................1-23
Safety Chains.................................................4-70
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-27
Scheduled Maintenance..................................... 6-4
Seats
50/50 Split Bench Seat.................................1-11
60/40 Split Bench Seat.................................. 1-8
Bench Seat................................................1-16
Bucket Seats, Rear......................................1-21
Head Restraints............................................ 1-7
Heated Seats............................................... 1-5
Manual........................................................ 1-3
Memory.....................................................2-64
Power Lumbar.............................................. 1-5
Power Seats................................................. 1-4
Rear Seat Operation...................................... 1-8
Reclining Seatbacks...................................... 1-6
Second Row..................................................1-65
Secondary Latch System.................................5-99
Securing a Child Restraint
Center Front Seat Position............................1-67
Center Rear Seat Position............................1-65
Designed for the LATCH System...................1-62
Rear Outside Seat Position...........................1-62Securing a Child Restraint (cont.)
Right Front Seat Position..............................1-68
Security While You Travel.................................. 7-6
Select Button.................................................3-69
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-51
Publications Ordering Information...................7-12
SERVICE 4 WHEEL STEER.............................3-74
SERVICE 4WD...............................................3-74
SERVICE AIRBAG..........................................3-73
SERVICE BRAKE SYSTEM.............................3-74
Service Bulletins.............................................7-13
Service Manuals.............................................7-12
SERVICE RIDE CONTROL..............................3-74
SERVICE STABILITY......................................3-74
SERVICE TIRE MONITOR...............................3-75
Setting Preset PTYs (RDS Only).....3-86, 3-97, 3-113
Setting Preset Stations..........3-79, 3-83, 3-95, 3-110
Setting the Time
Radios with Radio Data Systems (RDS).........3-78
Radios without Radio Data Systems (RDS).....3-77
Setting the Tone (Bass/Treble).................3-80, 3-84,
3-95, 3-111
Sheet Metal Damage.....................................5-109
Shifting Into Park (P).......................................2-38
Shifting Out of Park (P)...................................2-41
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