air conditioning GMC YUKON 2007 User Guide

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 Tire 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 488.
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 (DOT)
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. See
Loading Your Vehicle on page 392.
GAWR FRT:Gross Axle Weight Rating for the
front axle. SeeLoading Your Vehicle on page 392.
GAWR RR:Gross Axle Weight Rating for the
rear axle. SeeLoading Your Vehicle on page 392.
485

Fuses Usage
1 Not Used
2Electronic Stability Suspension
Control, Automatic Level Control
Exhaust
3 Left Trailer Stop/Turn Lamp
4 Engine Controls
5Engine Control Module,
Throttle Control
6 Right Trailer Stop/Turn Lamp
7 Front Washer
8 Oxygen Sensors
9 Anti-lock Brakes System 2
10 Trailer Back-up Lamps
11 Driver’s Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13Fuel Injectors, Ignition Coils
(Right Side)
14Transmission Control Module
(Battery)
15 Vehicle Back-up LampsFuses Usage
16Passenger’s Side Low-Beam
Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Not Used
22 Rear Washer
23Fuel Injectors, Ignition Coils
(Left Side)
24 Trailer Park Lamps
25 Driver’s Side Park Lamps
26 Passenger’s Side Park Lamps
27 Fog Lamps
28 Horn
29Passenger’s Side High-Beam
Headlamp
30 Daytime Running Lamps
31 Driver’s Side High-Beam Headlamp
543

J-Case Fuses Usage
60 Cooling Fan 1
61 Automatic Level Control Compressor
62 Heavy Duty Anti-lock Brake System
63 Cooling Fan 2
64 Anti-lock Brake System 1
65 Starter
66 Stud 2 (Trailer Brakes)
67 Left Bussed Electrical Center 1
68 Electric Running Boards
69 Heated Windshield Washer System
70 Not Used
71Stud 1 (Trailer Connector
Battery Power)
72 Mid-Bussed Electrical Center 1
73 Climate Control Blower
74 Power Liftgate Module
75 Left Bussed Electrical Center 2Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
ENG EXH VLV Not Used
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamps
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power
545

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended
Fluids and Lubricants on page 561for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant
Regular 2.5 lbs 1.130 kg
Extended 3.0 lbs 1.36 kg
Cooling System 18.1 qt 17.1 L
Engine Oil with Filter 6.0 qt† 5.7 L†
Fuel Tank
Regular 26.0 gal 98.4 L
Extended 31.5 gal 119.2 L
Transmission Fluid (Pan Removal and Filter Replacement) 6.0 qt 5.7 L
Transfer Case Fluid 1.5 qt 1.4 L
Wheel Nut Torque 140 lbft
190Y
†Oil lter should be changed at every oil change.
After rell, the level must be rechecked. Add enough engine coolant so that the uid is within the proper
operating range.
Engine Specications
Engine VIN Code Transmission Spark Plug Gap
6.2L V8 8 Automatic 0.040 in (1.01 mm)
546

(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing
parts, signs of wear, or lack of lubrication. Inspect
power steering lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc.
Visually check constant velocity joints, rubber
boots, and axle seals for leaks.
(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 wiper blades 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 airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, hood latch
assembly, secondary latch, pivots, spring anchor,
release pawl, door hinges, liftgate hinge, liftgate
linkage, liftgate handle pivot points, latch bolt, fuel
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.
556

A
Accessories and Modications..................... 421
Accessory Power Outlet(s).......................... 213
Adding Equipment to Your Airbag-Equipped
Vehicle..................................................... 107
Additives, Fuel............................................ 424
Add-On Electrical Equipment....................... 537
Adjustable Throttle and Brake Pedal............ 143
Air Cleaner/Filter, Engine............................. 437
Air Conditioning........................................... 214
Airbag
Passenger Status Indicator....................... 230
Readiness Light....................................... 229
Airbag Sensing and Diagnostic
Module (SDM).......................................... 582
Airbag System............................................... 90
Adding Equipment to Your
Airbag-Equipped Vehicle....................... 107
How Does an Airbag Restrain?.................. 99
Passenger Sensing System...................... 101
Servicing Your Airbag-Equipped Vehicle.... 106
What Makes an Airbag Inate?.................. 98Airbag System (cont.)
What Will You See After an Airbag
Inates?................................................ 100
When Should an Airbag Inate?................. 96
Where Are the Airbags?............................. 93
All-Wheel Drive........................................... 469
All-Wheel-Drive (AWD) System.................... 353
Antenna, Rear Side Window........................ 338
Antenna, XM™ Satellite Radio Antenna
System.................................................... 339
Anti-Lock Brake System (ABS).................... 347
Anti-Lock Brake, System Warning Light....... 234
Appearance Care
Aluminum Wheels.................................... 532
Care of Safety Belts................................ 530
Chemical Paint Spotting........................... 534
Cleaning Exterior Lamps/Lenses.............. 531
Cleaning the Inside of Your Vehicle.......... 526
Fabric/Carpet........................................... 528
Finish Care.............................................. 531
Finish Damage......................................... 534
Instrument Panel, Vinyl, and Other Plastic
Surfaces............................................... 529
593

Cleaning
Aluminum Wheels.................................... 532
Exterior Lamps/Lenses............................. 531
Fabric/Carpet........................................... 528
Finish Care.............................................. 531
Inside of Your Vehicle.............................. 526
Instrument Panel, Vinyl, and Other Plastic
Surfaces............................................... 529
Leather.................................................... 529
Speaker Covers....................................... 530
Tires........................................................ 533
Underbody Maintenance........................... 534
Washing Your Vehicle.............................. 530
Weatherstrips........................................... 530
Windshield, Backglass, and Wiper
Blades.................................................. 532
Wood Panels........................................... 530
Climate Control System
Dual Automatic......................................... 214
Outlet Adjustment..................................... 222
Rear Air Conditioning and Heating
System, Electronic................................ 223
Collision Damage Repair............................. 583
Comfort Guides, Rear Safety Belt................. 56
Compass..................................................... 158
Content Theft-Deterrent............................... 135Control of a Vehicle..................................... 346
Convenience Net......................................... 180
Coolant
Engine Temperature Gage........................ 236
Heater, Engine......................................... 144
Surge Tank Pressure Cap........................ 448
Cooling System........................................... 451
Cruise Control............................................. 200
Cruise Control Light.................................... 242
Cupholder(s)................................................ 178
Customer Assistance Information
Courtesy Transportation........................... 579
Customer Assistance for Text Telephone
(TTY) Users.......................................... 573
Customer Assistance Offices.................... 574
Customer Satisfaction Procedure.............. 570
GM Mobility Reimbursement Program...... 575
Reporting Safety Defects to General
Motors.................................................. 589
Reporting Safety Defects to the Canadian
Government.......................................... 588
Reporting Safety Defects to the United
States Government............................... 588
Roadside Assistance Program.................. 575
Service Publications Ordering
Information........................................... 589
596

Power
Accessory Outlet(s).................................. 213
Door Locks.............................................. 123
Electrical System..................................... 537
Liftgate..................................................... 128
Lumbar Controls........................................ 10
Reclining Seatbacks................................... 14
Retained Accessory (RAP)....................... 141
Running Boards....................................... 132
Seat............................................................ 9
Steering Fluid.......................................... 457
Windows.................................................. 133
Pretensioners, Safety Belt............................. 60
Programmable Automatic Door Locks.......... 124
Q
Questions and Answers About Safety Belts ... 42
R
Radios........................................................ 272
Care of Your CD and DVD Player............ 338
Care of Your CDs and DVDs................... 338
Navigation/Radio System, see Navigation
Manual................................................. 321Radios (cont.)
Radio with CD and DVD.......................... 294
Radio with Six-Disc CD............................ 276
Rear Seat Audio...................................... 333
Setting the Time..............................274, 275
Theft-Deterrent......................................... 335
Understanding Reception......................... 336
Rainsense™ II Wipers................................. 197
Rear Air Conditioning and Heating System
and Electronic Climate Controls............... 223
Rear Axle.................................................... 470
Rear Door Security Locks........................... 124
Rear Heated Seats....................................... 17
Rear Safety Belt Comfort Guides.................. 56
Rear Seat Audio (RSA)............................... 333
Rear Seat Entertainment System................. 321
Rear Seat Passengers, Safety Belts.............. 53
Rear Side Window Antenna......................... 338
Rear Storage Area...................................... 180
Rear Windshield Washer/Wiper.................... 199
Rearview Mirror, Automatic Dimming with
OnStar®, Compass and Temperature
Display..................................................... 158
Reclining Seatbacks, Power.......................... 14
Recommended Fluids and Lubricants.......... 561
Recovery Hooks.......................................... 391
603