air conditioning GMC YUKON 2004 User Guide

The knob has three speed positions. To increase the
ow of cooled air, turn the knob clockwise. To decrease
the ow of cooled air, turn it counterclockwise. To
turn the fan off, turn the knob to the off position.
To operate the rear system using the front control, just
turn the knob to the fan position you want.
To use the rear control, rst turn the front control to the
AUX position. Then, the rear control can be used to
increase and decrease the airow.Rear Air Conditioning and Heating
System
If your vehicle is equipped with this system, there are
two rear heat and air conditioning controls. One control
is located in the overhead console and the other is
located in the headliner above the second row seats.
The system can be controlled from the front controls as
well as the rear controls.
The front control has three knobs that control airow
speed, temperature and airow location. Rear Control
Front Control
3-35

Rear Air Conditioning and Heating
System and Electronic Climate
Controls
With this system the front or rear passengers can
control the air temperature, air ow and fan speed for
the rear seat passengers. The climate control has
an overhead control near the driver and a control on the
back of the center console.
Driver Overhead Control
To control the rear climate control from the front seat
position, use the driver overhead control. The rear
console control must be on.AUX:Turn the knob, located on the left side of the
control panel, to this position to allow the rear seat
passengers to have control over the rear climate control
system. See “Rear Passenger Console Control” later
for more information.
9(Off):Turn the knob, located on the left side of the
control panel, to this position to turn the rear climate
control system off.
9(Fan):To adjust the airow speed, turn the fan
knob located on the left side of the control panel to the
desired setting. Choose AUTO if you want the system
to automatically choose the fan speed to maintain
a selected temperature. See “Auto Mode” later in this
section for more information on using this feature.
°F (°C):To adjust the air temperature, turn the
temperature knob on the center of the control panel. For
cooler or warmer air turn the knob counterclockwise
toward 66°F (19°C) or clockwise toward 82°F (27°C).
To regulate the airow direction, adjust the right knob on
the control panel. Turn the knob clockwise for oor vent
airow or counterclockwise for headliner vent airow.
Generally, the upper vents are used for air conditioning
and the oor vents for heating. The knob can be set to
any blend setting. Choose AUTO if you want the system
to automatically regulate the airow. See “Auto Mode”
later in this section for more information on using this
feature. Front Controls
3-38

Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to
its width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.Cold Ination Pressure:The amount of air pressure in
a tire, measured in pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat
from driving. SeeInation - Tire Pressure on page 5-72.
Curb Weight:This means the weight of a motor
vehicle with standard and optional equipment including
the maximum capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the U.S.
Department of Transportation motor vehicle safety
standards. The DOT code includes the Tire Identication
Number (TIN), an alphanumeric designator which can
also identify the tire manufacturer, production plant,
brand and date of production.
GVWR:Gross Vehicle Weight Rating, seeLoading
Your Vehicle on page 4-56.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 4-56.
GAWR RR:Gross Axle Weight Rating for the rear axle,
seeLoading Your Vehicle on page 4-56.
5-69

Fuses Usage
4WSVent Solenoid
Canister/Quadrasteer Module
Power
RR HVAC Rear Climate Control
AUX PWRAuxiliary Power
Outlet — Console
IGN 1 Ignition Relay
PCM 1 Powertrain Control Module
ETC/ECMElectronic Throttle Control,
Electronic Brake Controller
IGN EInstrument Panel Cluster, Air
Conditioning Relay, Turn
Signal/Hazard Switch, Starter
Relay
RTD Ride Control
TRL B/U Backup Lamps Trailer Wiring
PCM BPowertrain Control Module,
Fuel Pump
F/PMP Fuel Pump (Relay)
B/U LPBack-up Lamps, Automatic
Transmission Shift Lock
Control SystemFuses Usage
RR DEFOG Rear Window Defogger
HDLP-HI Headlamp High Beam Relay
PRIME Not Used
SIRSupplemental Inatable
Restraint System
FRT PARKFront Parking Lamps,
Sidemarker Lamps
DRLDaytime Running Lamps
(Relay)
SEO IGN Rear Defog Relay
TBC IGN1 Truck Body Controller Ignition
HI HDLP-LT High Beam Headlamp-Left
LH HID Not Used
DRL Daytime Running Lamps
IPC/DICInstrument Panel
Cluster/Driver Information
Center
HVAC/ECAS Climate Control Controller
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
5-120

Fuses Usage
HDLP-LOW Headlamp Low Beam Relay
A/C COMP Air Conditioning Compressor
A/C COMPAir Conditioning Compressor
Relay
RR WPR Rear Wiper/Washer
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
HomeLink, Rear Heated
Seats
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock System
CRANK Starting System
LO HDLP-RT Headlamp Low Beam-Right
FOG LP Fog Lamp RelayFuses Usage
FOG LP Fog Lamps
HORN Horn Fuse
HORN Horn Relay
W/S WASHWindshield and Rear Window
Washer Pump Relay
W/S WASHWindshield and Rear Window
Washer Pump
INFOOnStar/Rear Seat
Entertainment
RADIO AMP Radio Amplier
RH HID Not Used
EAP Electric Adjustable Pedals
TREC All-Wheel Drive Module
SBA Supplemental Brake Assist
5-121

After rell, the level must be rechecked. Add enough engine oil so that the uid is within the proper operating range.
SeeEngine Oil on page 5-16.
Capacities
ApplicationCapacities
English Metric
Engine Oil with Filter
VORTEC™ 4800 V8 VIN V 6.0 quarts† 5.7 L†
VORTEC™ 5300 V8 VIN T 6.0 quarts† 5.7 L†
VORTEC™ 5300 V8 VIN Z (E-85) 6.0 quarts† 5.7 L†
VORTEC™ 6000 V8 VIN U 6.0 quarts† 5.7 L†
VORTEC™ 8100 V8 VIN G 6.5 quarts† 6.1 L†
Fuel Tank Capacity
Yukon 26.0 gallons 98.4 L
Yukon XL (1500 Series) 31.0 gallons 117.3 L
Yukon XL (2500 Series) 37.5 gallons 140.0 L
Air Conditioning Refrigerant Capacity
Yukon 2.71 lbs. 1.23 kg
Yukon XL 3.0 lbs. 1.36 kg
†Oil lter should be changed at every oil change.
5-124

(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl, rear
compartment hinges, outer liftgate handle pivot points,
rear door detent link, roller mechanism, liftgate handle
pivot points, latch bolt, fuel door hinge, cargo door hinge,
locks and folding seat hardware. More frequent
lubrication may be required when exposed to a corrosive
environment. Applying silicone grease on weatherstrips
with a clean cloth will make them last longer, seal better
and not stick or squeak.(g)Add uid as needed. A uid loss could indicate a
problem; repair as needed. Check vent hose at transfer
case for kinks and proper installation.
(h)Change automatic transmission uid and lter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, ush and rell cooling system. See Engine
Coolant on page 5-26for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and ller neck.
Pressure test the cooling system and pressure cap.
(j)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the uid level checked. Add uid if needed.
(k)Inspect system. Check all fuel and vapor lines and
hoses for proper hook-up, routing and condition.
Check that the purge valve works properly (if equipped).
Replace as needed.
6-8

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

Child Restraints (cont.)
Securing a Child Restraint in the Right Front
Seat Position...........................................1-68
Top Strap...................................................1-55
Top Strap Anchor Location............................1-57
Where to Put the Restraint...........................1-54
Chime Level Adjustment.................................3-139
Cigarette Lighter.............................................3-21
Cleaning
Inside of Your Vehicle.................................5-104
Outside of Your Vehicle..............................5-107
Underbody Maintenance.............................5-109
Video Screen............................................3-139
Weatherstrips............................................5-106
Cleaning Aluminum or Chrome-Plated Wheels.....5-108
Cleaning Exterior Lamps/Lenses......................5-107
Cleaning Fabric/Carpet...................................5-104
Cleaning Glass Surfaces................................5-106
Cleaning Interior Plastic Components...............5-106
Cleaning Leather...........................................5-105
Cleaning the Mirror.................................2-46, 2-49
Cleaning the Top of the Instrument Panel.........5-106
Cleaning the Windshield, Backglass and Wiper
Blades.....................................................5-108
Cleaning Tires..............................................5-109
Cleaning Vinyl..............................................5-105
Climate Control System...................................3-22
Dual..........................................................3-23
Dual Automatic............................................3-27
Rear Air Conditioning and Heating System......3-35Climate Control System (cont.)
Rear Air Conditioning and Heating System,
Electronic................................................3-38
Rear Air Conditioning System........................3-34
Compass Calibration...............................2-46, 2-47
Compass Operation.........................................2-47
Compass Variance..................................2-45, 2-48
Content Theft-Deferrent....................................2-18
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-62
Coolant
Engine Temperature Gage............................3-49
Heater, Engine............................................2-23
Surge Tank Pressure Cap.............................5-28
Cooling System..............................................5-32
Cruise Control................................................3-11
Cruise Control Light........................................3-56
Cupholder(s)..................................................2-60
Current and Past Model Order Forms................7-13
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors.......7-12
Reporting Safety Defects to the Canadian
Government............................................7-12
4

Power
Accessory Outlets........................................3-21
Door Locks.................................................. 2-9
Electrical System.......................................5-113
Lumbar Controls........................................... 1-5
Seat............................................................ 1-4
Steering Fluid.............................................5-38
Windows....................................................2-16
Power Steering...............................................4-14
Power Winches..............................................4-79
Programmable Automatic Door Locks.................2-10
Programming the HomeLink
®Transmitter...........2-56
Q
QUADRASTEER™..........................................4-16
Questions and Answers About Safety Belts.........1-27
R
Radio Data System (RDS)..............3-81, 3-93, 3-108
Radio Messages.............................3-80, 3-87, 3-99
Radios..........................................................3-77
AM-FM Radio.............................................3-78
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
Radio with Cassette and CD.........................3-92
Radio with CD............................................3-81Radios (cont.)
Radio with Six-Disc CD..............................3-108
Rear Seat Audio........................................3-134
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-78
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-77
Theft-Deterrent..........................................3-135
Understanding Reception............................3-137
RDS Messages.............................3-86, 3-98, 3-113
REAR ACCESS OPEN....................................3-73
Rear Air Conditioning and Heating System.........3-35
Rear Air Conditioning and Heating System and
Electronic Climate Controls...........................3-38
Rear Air Conditioning System...........................3-34
Rear Axle......................................................5-52
Locking......................................................4-11
Rear Door Security Locks................................2-12
Rear Safety Belt Comfort Guides......................1-42
Rear Seat Audio Controls...............................3-134
Rear Seat Audio (RSA)..................................3-134
Rear Seat Entertainment System.....................3-122
Rear Seat Operation......................................... 1-8
Rear Seat Outside Passenger Positions.............1-39
Rear Seat Passengers, Safety Belts..................1-39
Rear Storage Area..........................................2-62
Rear Window Defogger............................3-25, 3-33
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-46
12