
Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-9
Child Restraints
.......................................1-30
Air Bag Systems
......................................1-51
Restraint System Check
............................1-67
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-25
Theft-Deterrent Systems
............................2-27
Starting and Operating Your Vehicle
...........2-30
Mirrors
....................................................2-49
OnStar
®System
......................................2-59
HomeLink®Transmitter
.............................2-61
Storage Areas
.........................................2-65
Sunroof
..................................................2-89
Vehicle Personalization
.............................2-90
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages, and Indicators
........3-33
Driver Information Center (DIC)
..................3-53
Audio System(s)
.......................................3-72Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-52
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Rear Axle
...............................................5-55
Four-Wheel Drive
.....................................5-56
Front Axle
...............................................5-57
Bulb Replacement
....................................5-58
Windshield Wiper Blade Replacement
.........5-67
Tires
......................................................5-68
Appearance Care
...................................5-111
Vehicle Identi cation
...............................5-119
Electrical System
....................................5-119
Capacities and Speci cations
...................5-128
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-12
Index................................................................ 1
2004 Chevrolet Avalanche Owner ManualM

HomeLink®Transmitter...................................2-61
Programming the HomeLink®Transmitter.........2-62
Storage Areas................................................2-65
Glove Box...................................................2-65
Center Overhead Console..............................2-65
Front Armrest Storage Area...........................2-65
Center Console Storage Area.........................2-66
Luggage Carrier...........................................2-66Rear Storage Area........................................2-67
Cargo Cover Panels......................................2-67
All-Weather Cargo Area.................................2-78
Top-Box Storage..........................................2-82
Tonneau Cover............................................2-83
Sunroof.........................................................2-89
Vehicle Personalization...................................2-90
Memory Seat...............................................2-90
Section 2 Features and Controls
2-2

Reverse the procedure to reinstall the tonneau cover
using the following suggestions:
When reinstalling the front rail, start by holding the
back edge of the rail up and then twisting the back
edge down while pushing it into place.
Both bows are the same size and therefore
interchangeable.
When placing the bows in the side rails, it is easiest
to place the spring-loaded bow end in rst.
When placing the bows,
locate the small notches
(arrow) in the side rails.
These notches receive
the tang on the bow
ends and help the bows
seat into place.
When reinstalling the tonneau cover, start at the
front, near the cab. Place the plastic lip into the front
rail, then the rear rail, and nish with the side rails.
To clean the tonneau cover, use mild soap and water. If
necessary, use a soft bristle brush to remove dirt
trapped in the grain of the material.
Sunroof
Your vehicle may be equipped with a power sliding
sunroof. To open or close your sunroof, the ignition
needs to be on or RAP needs to be active. See
“Retained Accessory Power” underIgnition Positions on
page 2-31.
Press and release the rear side of the button located in
the front overhead console to express-open the glass
panel and sunshade. To close the glass panel,
press and hold the front of the button. The glass will not
be fully seated unless the button is held until the
glass stops moving. With the sunroof closed, press the
forward side of the button to open the sunroof to the
vent position.
The sunroof is also equipped with a sunshade which
you can pull forward to block sun rays.
2-89

If a hand, arm, or other object is blocking the sunroof
glass panel as it is closing, the glass panel will stop
at the obstruction. After the obstruction is removed, the
glass panel can be closed or opened.
Use care not to leave the sunroof open for long periods
of time as debris may collect in the tracks.
If the battery has been recharged, disconnected or is
not working, you may need to reprogram the sunroof. To
do this, start the vehicle and press the forward side of
the sunroof button until the glass panel moves to a fully
closed position. Release, and press again to move to
the vent position which occurs when the sunroof is fully
tilted rearward. This will reset the memory and enable
the sunroof to function properly.Vehicle Personalization
Memory Seat
If your vehicle has this
feature, then the controls
for the memory function are
located on the driver’s door.
These buttons are used to program and recall memory
settings for the driver’s seat, throttle and brake
pedals, both the driver’s and passenger’s outside mirror,
the radio station presets and the last chosen climate
control system settings. The settings for these features
can be personalized for both driver 1 and driver 2.
Driver 1 or driver 2 corresponds to the memory buttons
labeled 1 and 2 on the driver’s door and the numbers
on the back of the remote keyless entry transmitters.
2-90

XM™ Satellite Radio Antenna
System
The XM™ Satellite Radio antenna is located on the roof
of your vehicle. Keep this antenna clear of snow and
ice build up for clear radio reception.
The performance of the XM™ system may be affected if
the sunroof is open.
Loading items onto the roof of your vehicle can interfere
with the performance of the XM™ system. Make sure
that the XM™ satellite antenna is not obstructed.
Chime Level Adjustment
The radio is the vehicle chime producer. To change the
volume level, press and hold pushbutton 6 with the
ignition on and the radio power off. The chime volume
level will change from the normal level to loud, and
LOUD will appear on the radio display. To change back
to the default or normal setting, press and hold
pushbutton 6 again. The chime level will change from
the loud level to normal, and NORMAL will appear
on the radio display. Each time the chime volume is
changed, three chimes will sound as an example of the
new volume selected. Removing the radio and not
replacing it with a factory radio or chime module will
disable vehicle chimes.
3-117

*1— Gasoline Engine and Fuel Injection Rail #2.
*2— Gasoline Engine and Fuel Injection Rail #1.
*3— Gasoline Engine; Oxygen Sensors.
*4— Gasoline Engine; Oxygen Sensors.
*5— PCM Ignition
Fuses Usage
GLOW PLUG Not Used
CUST FEED Accessory Power
STUD #1 Auxiliary Power
MBECMid Bussed Electrical Center
Power Feed, Front Seats,
Right Doors
BLOWER Front Climate Control Fan
LBECLeft Bussed Electrical Center,
Door Modules, Door Locks,
Auxiliary Power Outlet—Rear
Cargo Area and Instrument
Panel
STUD 2Accessory Power/Trailer
Wiring Brake Feed
ABS Anti-Lock Brakes
VSES/ECAS Vehicle Stability
Fuses Usage
IGN A Ignition Power
IGN B Ignition Power
LBEC 1Left Bussed Electrical Center,
Left Doors, Truck Body
Controller, Flasher Module
TRL PARK Parking Lamps Trailer Wiring
RR PARKRight Rear Parking and
Sidemarker Lamps
LR PARKLeft Rear Parking and
Sidemarker Lamps
PARK LP Parking Lamps Relay
STARTER Starter Relay
INTPARK Interior Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller
Battery Feed
SUNROOF Sunroof
SEO B2 Off-Road Lamps
4WSVent Solenoid
Canister/Quadrasteer
Module Power
5-125

Service (cont.)
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-5
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-47
Publications Ordering Information...................7-13
SERVICE 4WD...............................................3-67
SERVICE AIR BAG.........................................3-67
SERVICE BRAKE SYSTEM.............................3-67
Service Bulletins.............................................7-14
Service Manuals.............................................7-13
SERVICE RIDE CONTROL..............................3-67
SERVICE STABILITY......................................3-71
SERVICE TIRE MONITOR...............................3-72
Setting Preset PTYs (RDS Only)...............3-78, 3-90
Setting Preset Stations............................3-76, 3-88
Setting the Time.............................................3-73
Setting the Tone (Bass/Treble)..................3-76, 3-88
Sheet Metal Damage.....................................5-117
Shifting Into Park (P).......................................2-43
Shifting Out of Park (P)...................................2-46
Side Impact Air Bags.......................................1-58
Side Rail Channels.........................................2-80
Skidding........................................................4-19
Snow Plow....................................................4-63
Some Other Rainy Weather Tips.........................4-38
Spare Tire....................................................5-110Special Fabric Cleaning Problems....................5-112
Speci cations, Capacities...............................5-128
Speedometer..................................................3-35
Stabilitrak
®System.........................................4-11
STABILITY SYS ACTIVE..................................3-71
STABILITY SYS DISABLED..............................3-71
Stalling on an Incline.......................................4-30
Starting Your Engine.......................................2-32
Steering........................................................4-15
Steering in Emergencies..................................4-16
Steering Tips..................................................4-15
Steering Wheel Controls, Audio.......................3-114
Steering Wheel, Tilt Wheel................................. 3-7
Stereo RCA Jacks.........................................3-101
Storage Areas
All-Weather Cargo Area................................2-78
Center Console Storage Area........................2-66
Center Overhead Console.............................2-65
Front Armrest Storage Area...........................2-65
Glove Box..................................................2-65
Luggage Carrier..........................................2-66
Rear Storage Area.......................................2-67
Top-Box Storage..........................................2-82
Storing a Flat or Spare Tire, Jack and Tools.....5-103
Stuck in Sand, Mud, Ice or Snow......................4-49
Sun Visors.....................................................2-26
Sunroof.........................................................2-89
15