2018 GMC YUKON trailer

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Vehicle Care 317
FusesUsage
52 –
53 –
54 –
55 –
56 –
57 –
58 –
59 Euro trailer
60 Air conditioning control
61 –
62 –
63 Upfitter 1
64 –
65 –
66 –
67 Trailer battery
68 Secondary fuel pump
69 RC upfitter 3 and 4 Fuses
Usage
70 VBAT upfitter 3 and 4
71 –
73 –
74 Engine control module/Ignition
75 Miscellaneous/ Ignition/–
76 Transmission/ Ignition
77 RC upfitter 1 and 2
78 VBAT upfitter 1 and 2
79 –
80 –
81 –
82 –
83 Euro trailer/RC
85 –
86 –
87 MAF/IAT/Humidity/ TIAP sensor Fuses
Usage
88 Injector A –odd
89 Injector B –even
90 O2 sensor B
91 Throttle control
93 Horn
94 Fog lamps
95 High-beam headlamps
96 –
97 –
98 –
99 –
100 O2 sensor A
101 Engine control module
102 Engine control module/
Transmission
control module
103 Auxiliary interior heater
104 Starter

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
320 Vehicle Care
FusesUsage
17 Video processing module
18 Mirror window module
19 Body control module 1
20 Front bolster (if equipped)
21 –
22 –
23 –
24 HVAC/Ignition
25 Instrument cluster/ Ignition sensing
diagnostic module/
Ignition
26 Tilt column/SEO/Tilt column lock 1/SEO
27 Data link connector/ Driver seat module
28 Passive entry/Passive start/HVAC battery
29 Content theft deterrent Fuses
Usage
30 –
31 –
32 –
33 SEO/Automatic level control/Left heated
second row seat
34 Park enable/Electric adjustable pedal (if
equipped)
35 –
36 Miscellaneous/Run crank
37 Heated steering wheel
38 Steering column lock 2 (if equipped)
39 Instrument cluster battery
40 –
41 –
42 Euro trailer (if equipped)
43 Left doors Fuses
Usage
44 Driver power seat
45 –
46 Right heated, cooled, or ventilated seat (if
equipped)
47 Left heated, cooled, or ventilated seat (if
equipped)
48 –
49 –
50 Accessory power outlet 2
51 –
54 –
55 –
56 –
Relays Usage
52 Retained accessory power
53 Run/Crank relay

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Vehicle Care 327
(2) TPC Spec (Tire
Performance Criteria
Specification)
:Original
equipment tires designed to
GM's specific tire performance
criteria have a TPC specification
code molded onto the sidewall.
GM's TPC specifications meet or
exceed all federal safety
guidelines.
(3) DOT (Department of
Transportation)
:The
Department of Transportation
(DOT) code indicates that the
tire is in compliance with the
U.S. Department of
Transportation Motor Vehicle
Safety Standards.
DOT Tire Date of
Manufacture
:The last four
digits of the TIN indicate the tire
manufactured date. The first two
digits represent the week
(01-52) and the last two digits,
the year. For example, the third week of the year 2010 would
have a four-digit DOT date
of 0310.
(4) Tire Identification Number
(TIN)
:The letters and numbers
following the DOT code are the
Tire Identification Number (TIN).
The TIN shows the
manufacturer and plant code,
tire size, and date the tire was
manufactured. The TIN is
molded onto both sides of the
tire, although only one side may
have the date of manufacture.
(5) Tire Ply Material
:The type
of cord and number of plies in
the sidewall and under the tread.
(6) Uniform Tire Quality
Grading (UTQG)
:Tire
manufacturers are required to
grade tires based on three
performance factors: treadwear,
traction, and temperature
resistance. For more
information, see Uniform Tire
Quality Grading 0342. (7) Maximum Cold Inflation
Load Limit
:Maximum load that
can be carried and the
maximum pressure needed to
support that load. For
information on recommended
tire pressure see Tire Pressure
0 331 and Vehicle Load Limits
0 204.
(8) Temporary Use Only
:Only
use a temporary spare tire until
the road tire is repaired and
replaced. This spare tire should
not be driven on over 112 km/h
(70 mph), or 88 km/h (55 mph)
when pulling a trailer, with the
proper inflation pressure. See
Full-Size Spare Tire 0355.
Tire Designations
Tire Size
The example shows a typical
passenger vehicle tire size.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Vehicle Care 355
4. Insert the open end of theextension (7) through the hole
in the rear bumper (8) (hoist
shaft access hole).
5. Raise the tire part way upward. Make sure the retainer is
seated in the wheel opening.
6. Raise the tire fully against the underside of the vehicle by
turning the wheel wrench
clockwise until you hear two
clicks or feel it skip twice. The
cable cannot be overtightened.7. Make sure the tire is storedsecurely. Push, pull, and then
try to turn the tire. If the tire
moves, use the wheel wrench
to tighten the cable.
8. Reinstall the spare tire lock.
9. Reinstall the hoist shaft access cover.
If equipped, reinstall the hitch
cover and turn the retainers
clockwise.
To store the tools: 1. Return the tools (wheel wrench, jack handle, and jack
handle extensions) to the
tool bag.
2. Assemble the wheel blocks and jack together with the
wing nut.
3. Position the jack and wheel blocks in the driver side trim
panel over the wheelhouse.
4. Turn the jack knob clockwise until the jack is secured tight in
the mounting bracket. Be sure to position the holes in the
base of the jack onto the pin in
the mounting bracket.
5. Use the retaining bracket to fasten the tool bag on the stud
and turn the wing nut clockwise
to secure.
6. Close the trim panel door.
Full-Size Spare Tire
If this vehicle came with a full-size
spare tire, it was fully inflated when
new, however, it can lose air over
time. Check the inflation pressure
regularly. See Tire Pressure0331
and Vehicle Load Limits 0204. For
instructions on how to remove,
install, or store a spare tire, see Tire
Changing 0346.
If equipped with a temporary use
full-size spare tire, it is indicated on
the tire sidewall. See Tire Sidewall
Labeling 0326. This spare tire
should not be driven on over
112 km/h (70 mph), or 88 km/h
(55 mph) when pulling a trailer, at
the proper inflation pressure. Repair

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Vehicle Care 361
recreational vehicle towing are
dinghy and dolly towing. Dinghy
towing is towing the vehicle with all
four wheels on the ground. Dolly
towing is towing the vehicle with two
wheels on the ground and two
wheels on a dolly.
Follow the tow vehicle
manufacturer’s instructions. See
your dealer or trailering professional
for additional advice and equipment
recommendations.
Caution
Use of a shield mounted in front
of the vehicle grille could restrict
airflow and cause damage to the
transmission. The repairs would
not be covered by the vehicle
warranty. If using a shield, only
use one that attaches to the
towing vehicle.
Dinghy Towing
Two-Wheel-Drive Vehicles
Caution
If the two-wheel-drive vehicle is
towed with all four wheels on the
ground, the drivetrain
components could be damaged.
The repairs would not be covered
by the vehicle warranty.
Two-wheel-drive vehicles should not
be towed with all four wheels on the
ground. Four-Wheel-Drive Vehicles
Only dinghy tow four-wheel-drive
vehicles with a two speed transfer
case that have a N (Neutral) and a 4
nsetting.
{Warning
Shifting a four-wheel-drive
vehicle's transfer case into
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). You or others could
be injured. Set the parking brake
before shifting the transfer case
to N (Neutral).

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Service and Maintenance 375
The Tire Rotation and Required
Services are the responsibility of the
vehicle owner. It is recommended to
have your dealer perform these
services every 12 000 km/7,500 mi.
Proper vehicle maintenance helps to
keep the vehicle in good working
condition, improves fuel economy,
and reduces vehicle emissions.
Because of the way people use
vehicles, maintenance needs vary.
There may need to be more
frequent checks and services. The
Additional Required Services -
Normal are for vehicles that:
.Carry passengers and cargo
within recommended limits on
the Tire and Loading Information
label. See Vehicle Load Limits
0 204.
. Are driven on reasonable road
surfaces within legal driving
limits. .
Use the recommended fuel. See
Fuel 0259.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Normal chart.
The Additional Required Services -
Severe are for vehicles that are:
. Mainly driven in heavy city traffic
in hot weather
. Mainly driven in hilly or
mountainous terrain
. Frequently towing a trailer
. Used for high speed or
competitive driving
. Used for taxi, police, or delivery
service
Refer to the information in the
Maintenance Schedule Additional
Required Services - Severe chart.{Warning
Performing maintenance work can
be dangerous and can cause
serious injury. Perform
maintenance work only if the
required information, proper tools,
and equipment are available.
If they are not, see your dealer to
have a trained technician do the
work. See Doing Your Own
Service Work 0282.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
428 Index
Tires (cont'd)Full-Size Spare . . . . . . . . . . . . . . . 355
If a Tire Goes Flat . . . . . . . . . . . . 345
Inspection . . . . . . . . . . . . . . . . . . . . 337
Low Profile . . . . . . . . . . . . . . . . . . . 326
Pressure . . . . . . . . . . . . . . . . . 331, 332
Pressure Light . . . . . . . . . . . . . . . . 151
Pressure Monitor Operation . . 334
Pressure Monitor System . . . . . 333
Rotation . . . . . . . . . . . . . . . . . . . . . . 338
Sidewall Labeling . . . . . . . . . . . . . 326
Terminology and Definitions . . 328
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 342
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 343
Wheel Replacement . . . . . . . . . . 343
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 339
Winter . . . . . . . . . . . . . . . . . . . . . . . . 325
Tow/Haul Mode . . . . . . . . . . . . . . . . . 225
Tow/Haul Mode Light . . . . . . . . . . . 149
Towing Driving Characteristics . . . . . . . . 263
Equipment . . . . . . . . . . . . . . . . . . . . 271
General Information . . . . . . . . . . 263
Recreational Vehicle . . . . . . . . . . 360
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 266 Towing (cont'd)
Trailer Sway Control (TSC) . . . 277
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 360
Traction
Control System (TCS)/StabiliTrak Light . . . . . . . . . . . . . 151
Off Light . . . . . . . . . . . . . . . . . . . . . . 150
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 234
Trailer Sway Control (TSC) . . . . . . . . . . 277
Towing . . . . . . . . . . . . . . . . . . . . . . . . 266
Transfer Case . . . . . . . . . . . . . . . . . . 226
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 220
Fluid, Automatic . . . . . . . . . 290, 293
Temperature Gauge . . . . . . . . . . 142
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 398
Trip Odometer . . . . . . . . . . . . . . . . . . 139
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 178
U
Uniform Tire Quality Grading . . . 342
Universal Remote System . . . . . . 170Operation . . . . . . . . . . . . . . . . . . . . . 173 Universal Remote System (cont'd)
Programming . . . . . . . . . . . . . . . . . 170
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 51
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 194
Identification Number (VIN) . . . 388
Load Limits . . . . . . . . . . . . . . . . . . . 204
Messages . . . . . . . . . . . . . . . . . . . . 161
Personalization . . . . . . . . . . . . . . . 162
Remote Start . . . . . . . . . . . . . . . . . . . 41
Security . . . . . . . . . . . . . . . . . . . . . . . . 51
Speed Messages . . . . . . . . . . . . . 162
Towing . . . . . . . . . . . . . . . . . . . . . . . . 360
Vehicle Ahead Indicator . . . . . . . . 150
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 331
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 404
Ventilation, Air . . . . . . . . . . . . . . . . . . 189
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Voltmeter Gauge . . . . . . . . . . . . . . . 143