2008 GMC YUKON climate control

The StabiliTrak®light will
ash on the instrument
panel cluster when
the system is both on and
activated.
You may also feel or hear the system working; this is
normal.
The traction control disable
button is located on the
instrument panel below the
climate controls.
The traction control part of StabiliTrak
®can be turned
off by pressing and releasing the StabiliTrak®button
if both systems (traction control and StabiliTrak®) were
previously on. To disable both traction control and
StabiliTrak
®, press and hold the button for ve seconds.
Traction control and StabiliTrak
®can be turned on by
pressing and releasing the StabiliTrak®button if
not automatically shut off for any other reason.When the TCS or StabiliTrak
®system is turned off, the
StabiliTrak®light and the appropriate TCS off or
StabiliTrak®off message will be displayed on the DIC to
warn the driver. Your vehicle will still have brake-traction
control when traction control is off, but will not be
able to use the engine speed management system. See
“Traction Control Operation” next for more information.
When the traction control system has been turned
off, you may still hear system noises as a result of the
brake-traction control coming on.
It is recommended to leave the system on for normal
driving conditions, but it may be necessary to turn
the system off if your vehicle is stuck in sand, mud, ice
or snow, and you want to “rock” your vehicle to
attempt to free it. It may also be necessary to turn off
the system when driving in extreme off-road conditions
where high wheel spin is required. SeeIf Your
Vehicle is Stuck in Sand, Mud, Ice, or Snow on
page 4-33.
When the transfer case is in 4LO, the stability system is
automatically disabled, the StabiliTrak
®light will come
on and the STABILITRAK OFF message will appear on
the DIC. Both traction control and StabiliTrak
®are
automatically disabled in this condition.
4-7

Driving with a Trailer
{CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon
monoxide (CO) could come into your vehicle.
You cannot see or smell CO. It can cause
unconsciousness or death. SeeEngine
Exhaust on page 2-47. To maximize your safety
when towing a trailer:
Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.
Keep the rear-most windows closed.
If exhaust does come into your vehicle
through a window in the rear or another
opening, drive with your front, main
heating or cooling system on and with the
fan on any speed. This will bring fresh,
outside air into your vehicle. Do not use
the climate control setting for maximum air
because it only recirculates the air inside
your vehicle. SeeClimate Control System
on page 3-23.Towing a trailer requires a certain amount of experience.
Before setting out for the open road, you’ll want to get
to know your rig. Acquaint yourself with the feel of
handling and braking with the added weight of the trailer.
And always keep in mind that the vehicle you are
driving is now a good deal longer and not nearly as
responsive as your vehicle is by itself.
Before you start, check all trailer hitch parts and
attachments, safety chains, electrical connector, lamps,
tires and mirror adjustment. If the trailer has electric
brakes, start your vehicle and trailer moving and then
apply the trailer brake controller by hand to be sure
the brakes are working. This lets you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer
brakes are still working.Following Distance
Stay at least twice as far behind the vehicle ahead as
you would when driving your vehicle without a trailer.
This can help you avoid situations that require
heavy braking and sudden turns.
4-58

Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which
grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use
spare tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specied
government test course. For example, a tire
graded 150 would wear one and a half (1.5) times
as well on the government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from
the norm due to variations in driving habits, service
practices, and differences in road characteristics
and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the tire’s
ability to stop on wet pavement as measured
under controlled conditions on specied
government test surfaces of asphalt and concrete.
A tire marked C may have poor traction
performance.
Warning
:The traction grade assigned to this
tire is based on straight-ahead braking
traction tests, and does not include
acceleration, cornering, hydroplaning, or peak
traction characteristics.
5-83

Instrument Panel Fuse Block
The instrument panel fuse block access door is located
on the driver side edge of the instrument panel.
Fuses Usage
1 Rear Seats
2 Rear Accessory Power Outlet
3 Steering Wheel Controls Backlight
4 Driver Door Module
Fuses Usage
5Dome Lamps, Driver Side Turn
Signal
6 Driver Side Turn Signal, Stoplamp
7 Instrument Panel Back Lighting
8Passenger Side Turn Signal,
Stoplamp
9Passenger Door Module, Universal
Home Remote System
10 Power Door Lock 2 (Unlock Feature)
11 Power Door Lock 2 (Lock Feature)
12Stoplamps, Center-High Mounted
Stoplamp
13 Rear Climate Controls
14 Not Used
15 Body Control Module (BCM)
16 Accessory Power Outlets
17 Interior Lamps
18 Power Door Lock 1 (Unlock Feature)
19 Rear Seat Entertainment
20Ultrasonic Rear Parking Assist,
Power Liftgate
21 Power Door Lock 1 (Lock Feature)
22 Driver Information Center (DIC)
5-118

Fuses Usage
23 Rear Windshield Washer
24Fuel Injectors, Ignition Coils
(Left Side)
25 Trailer Park Lamps
26 Driver Park Lamps
27 Passenger Side Park Lamps
28 Fog Lamps
29 Horn
30Passenger Side High-Beam
Headlamp
31 Daytime Running Lamps
32 Driver Side High-Beam Headlamps
33 Daytime Running Lamps 2
34 Sunroof
35Key Ignition System, Theft Deterrent
System
36 Windshield Wiper
37 SEO B2 Uptter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)Fuses Usage
41 Amplier
42 Audio System
43Miscellaneous (Ignition), Cruise
Control
44 Liftgate Release
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Power Take-Off
48Auxiliary Climate Control (Ignition),
Compass-Temperature Mirror
49Center High-Mounted
Stoplamp (CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Uptter Usage (Battery)
53Cigarette Lighter, Auxiliary Power
Outlet
54Automatic Level Control Compressor
Relay, SEO Uptter Usage
55 Climate Controls (Ignition)
56Engine Control Module, Secondary
Fuel Pump (Ignition)
5-122

J-Case Fuses Usage
60 Cooling Fan 1
61 Antilock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Electric Running Boards
66 Heated Windshield Washer System
67 Four-Wheel Drive System
68Stud 1 (Trailer Connector
Battery Power)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Power Liftgate Module
72 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 Headlamp
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
5-123

Chemical Paint Spotting.................................5-114
Child Restraints
Child Restraint Systems...............................1-57
Infants and Young Children...........................1-54
Lower Anchors and Tethers for Children..........1-61
Older Children.............................................1-51
Securing a Child Restraint in a Rear Seat
Position..................................................1-69
Securing a Child Restraint in the Center
Front Seat Position...................................1-71
Securing a Child Restraint in the Right
Front Seat Position...................................1-72
Where to Put the Restraint...........................1-60
Cigarette Lighter.............................................3-23
Cleaning
Aluminum or Chrome-Plated Wheels.............5-113
Exterior Lamps/Lenses................................5-112
Fabric/Carpet............................................5-109
Finish Care...............................................5-112
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-110
Interior.....................................................5-108
Leather....................................................5-110
Tires........................................................5-114
Underbody Maintenance.............................5-114
Washing Your Vehicle.................................5-111
Weatherstrips............................................5-111
Windshield, Backglass, and Wiper Blades......5-113Climate Control System...................................3-23
Dual Automatic............................................3-26
Outlet Adjustment........................................3-33
Rear Air Conditioning and Heating System......3-33
Rear Air Conditioning and Heating System,
Electronic................................................3-35
Clock, Setting.................................................3-82
Collision Damage Repair..................................7-11
Compass...............................................2-49, 2-52
Content Theft-Deterrent....................................2-22
Control of a Vehicle
.......................................... 4-3
Coolant
Engine Temperature Gage............................3-47
Heater, Engine............................................2-30
Surge Tank Pressure Cap.............................5-31
Cooling System..............................................5-34
Cruise Control................................................3-13
Cruise Control Light........................................3-53
Cupholder(s)..................................................2-71
Customer Assistance Information
Courtesy Transportation.................................. 7-9
Customer Assistance for Text
Telephone (TTY) Users............................... 7-5
Customer Assistance Offices........................... 7-5
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-6
Reporting Safety Defects to General Motors....7-14
3

Customer Assistance Information (cont.)
Reporting Safety Defects to the
Canadian Government..............................7-14
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-15
D
Daytime Running Lamps..................................3-17
Defensive Driving............................................. 4-2
Delayed Locking.............................................2-11
Disc, MP3..........................................3-103, 3-108
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-20
Dome Lamps.................................................3-20
Door
Delayed Locking..........................................2-11
Locks........................................................2-10
Power Door Locks.......................................2-11
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-12
Driver Information Center (DIC).........................3-55
DIC Operation and Displays..................3-56, 3-61
DIC Vehicle Customization............................3-72
DIC Warnings and Messages........................3-64Driving
At Night.....................................................4-26
Before a Long Trip......................................4-28
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-28
Hill and Mountain Roads..............................4-29
In Rain and on Wet Roads...........................4-26
Off-Road....................................................4-13
Recovery Hooks..........................................4-34
Rocking Your Vehicle to Get it Out.................4-34
Winter........................................................4-30
Dual Automatic Climate Control System.............3-26
DVD
Rear Seat Entertainment System..................3-115
E
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-117
Center Instrument Panel Fuse Block.............5-119
Fuses and Circuit Breakers.........................5-117
Instrument Panel Fuse Block.......................5-118
Power Windows and Other Power Options....5-117
Underhood Fuse Block...............................5-120
Windshield Wiper Fuses.............................5-117
4