trailer GMC YUKON XL 2007 Service Manual

Fuses Usage
41 Audio System
42 Four-Wheel Drive
43Miscellaneous (Ignition), Rear Vision
Camera, Cruise Control
44 Liftgate Release
45OnStar
®, Rear Seat Entertainment
Display
46 Instrument Panel Cluster
47 Not Used
48 Not Used
49Auxiliary Climate Control (Ignition),
Compass-Temperature Mirror
50 Rear Defogger
51 Airbag System (Battery)
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)
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 Four-Wheel Drive System
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 2
546

(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. This
service can be complex; you should have your
dealer perform this service. See Engine Coolant on
page 449 for 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.(l)If you drive regularly under dusty conditions,
inspect the lter at each engine oil change.
(m)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
Owner Checks and Services
These owner checks and services should be
performed at the intervals specied to help
ensure the safety, dependability, and emission
control performance of your vehicle. Your
GM Goodwrench
®dealer can assist you with
these checks and services.
Be sure any necessary repairs are completed at
once. Whenever any uids or lubricants are added
to your vehicle, make sure they are the proper
ones, as shown inRecommended Fluids and
Lubricants on page 564.
At Each Fuel Fill
It is important to perform these underhood checks
at each fuel ll.
560

M
Maintenance Schedule
Additional Required Services..................... 557
At Each Fuel Fill....................................... 560
At Least Once a Month............................ 561
At Least Once a Year............................... 562
Introduction............................................... 552
Maintenance Footnotes............................. 558
Maintenance Record................................. 568
Maintenance Requirements....................... 552
Normal Maintenance Replacement Parts..... 566
Owner Checks and Services..................... 560
Recommended Fluids and Lubricants........ 564
Scheduled Maintenance............................ 555
Using........................................................ 553
Your Vehicle and the Environment............ 552
Malfunction Indicator Light............................ 236
Manual Seats................................................... 9
Memory Seat, Mirrors, and Pedals................. 13
Message
DIC Warnings and Messages.................... 254
Mirrors
Automatic Dimming Rearview with
Compass and Temperature Display........ 160
Automatic Dimming Rearview with
OnStar
®, Compass and Temperature
Display.................................................. 157Mirrors (cont.)
Outside Automatic Dimming Mirror............ 166
Outside Convex Mirror.............................. 166
Outside Curb View Assist Mirrors.............. 166
Outside Heated Mirrors............................. 167
Outside Manual Mirrors............................. 163
Outside Power Foldaway Mirrors............... 165
Outside Power Mirrors.............................. 164
Outside Trailer-Tow Mirrors....................... 163
MyGMLink.com............................................. 574
N
Navigation/Radio System,
see Navigation Manual.............................. 321
New Vehicle Break-In................................... 136
Normal Maintenance Replacement Parts...... 566
O
Odometer..................................................... 226
Odometer, Trip............................................. 226
Off-Road Driving........................................... 356
Off-Road Recovery....................................... 353
601

Oil
Engine...................................................... 438
Pressure Gage.......................................... 239
Pressure Light.......................................... 240
Oil, Engine Oil Life System.......................... 441
Older Children, Restraints.............................. 61
Online Owner Center................................... 574
OnStar
®System, see OnStar®Manual......... 167
Other Warning Devices................................ 188
Outlet Adjustment......................................... 220
Outlet(s), Accessory Power........................... 208
Outside
Automatic Dimming Mirror......................... 166
Convex Mirror........................................... 166
Curb View Assist Mirrors........................... 166
Heated Mirrors.......................................... 167
Manual Mirrors.......................................... 163
Power Foldaway Mirrors............................ 165
Power Mirrors........................................... 164
Trailer-Tow Mirrors.................................... 163
Overheated Engine Protection
Operating Mode........................................ 454
Owner Checks and Services........................ 560
Owners, Canadian........................................... 3
P
Paint, Damage............................................. 536
Park Aid....................................................... 205
Park (P)
Shifting Into.............................................. 152
Shifting Out of.......................................... 154
Parking
Assist....................................................... 205
Brake........................................................ 151
Over Things That Burn............................. 154
Passenger Airbag Status Indicator................ 228
Passenger Sensing System.......................... 100
Passing........................................................ 353
PASS-Key
®III+............................................ 134
PASS-Key®III+ Operation............................ 134
Power
Accessory Outlet(s)................................... 208
Door Locks............................................... 121
Electrical System...................................... 539
Liftgate..................................................... 125
Lumbar Controls......................................... 11
Retained Accessory (RAP)........................ 138
Running Boards........................................ 129
Seat........................................................... 10
602

Stuck in Sand, Mud, Ice, or Snow................ 388
Sun Visors................................................... 132
Sunroof........................................................ 181
T
Tachometer.................................................. 226
Taillamps
Turn Signal, Stoplamps and
Back-up Lamps..................................... 478
Theft-Deterrent, Radio.................................. 334
Theft-Deterrent Systems............................... 132
Content Theft-Deterrent............................. 132
PASS-Key
®III+......................................... 134
PASS-Key®III+ Operation......................... 134
Third Row Seat.............................................. 33
Throttle, Adjustable....................................... 140
Tilt Wheel..................................................... 189
Tire
Pressure Light.......................................... 235
Tires............................................................ 482
Aluminum or Chrome-Plated Wheels,
Cleaning................................................ 534
Buying New Tires...................................... 500
Chains...................................................... 506Tires (cont.)
Changing a Flat Tire................................. 508
Cleaning................................................... 535
Different Size............................................ 502
If a Tire Goes Flat.................................... 507
Ination - Tire Pressure............................. 490
Inspection and Rotation............................ 497
Installing the Spare Tire............................ 513
Pressure Monitor System.......................... 492
Removing the Flat Tire............................. 513
Removing the Spare Tire and Tools.......... 509
Secondary Latch System.......................... 519
Spare Tire................................................. 526
Storing a Flat or Spare Tire and Tools...... 522
Tire Sidewall Labeling............................... 484
Tire Terminology and Denitions................ 487
Uniform Tire Quality Grading..................... 502
Wheel Alignment and Tire Balance............ 504
Wheel Replacement.................................. 504
When It Is Time for New Tires.................. 499
Tow/Haul Mode............................................ 145
Tow/Haul Mode Light.................................... 242
Towing
Recreational Vehicle.................................. 401
Towing a Trailer........................................ 405
Your Vehicle.............................................. 400
606

Traction
StabiliTrak®System.................................. 348
Trailer
Recommendations..................................... 422
Transmission
Fluid, Automatic........................................ 445
Transmission Operation, Automatic............... 142
Trip Odometer.............................................. 226
Turn and Lane-Change Signals.................... 191
Turn Signal/Multifunction Lever..................... 190
U
Ultrasonic Rear Parking Assist (URPA)......... 205
Understanding Radio Reception.................... 335
Uniform Tire Quality Grading........................ 502
Universal Home Remote System.................. 169
Operation.................................................. 170
V
Vehicle
Control...................................................... 344
Damage Warnings........................................ 5
Loading..................................................... 390
Symbols....................................................... 5Vehicle Customization, DIC.......................... 264
Vehicle Data Collection and Event Data
Recorders................................................. 583
Vehicle Identication
Number (VIN)........................................... 538
Service Parts Identication Label.............. 538
Ventilation Adjustment.................................. 220
Visors........................................................... 132
Voltmeter Gage............................................ 231
W
Warning Lights, Gages and Indicators.......... 224
Warnings
DIC Warnings and Messages.................... 254
Hazard Warning Flashers.......................... 188
Other Warning Devices............................. 188
Safety and Symbols...................................... 4
Vehicle Damage........................................... 5
Wheels
Alignment and Tire Balance...................... 504
Different Size............................................ 502
Replacement............................................. 504
Where to Put the Restraint............................ 72
Windows...................................................... 130
Power....................................................... 131
607