2018 GMC YUKON XL relay

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
314 Vehicle Care Fuses Usage
109 Police upfitter
110 –
111 –
113 –
114 Front windshield
washer
115 Rear window
washer
116 Left cooling fan
117 Fuel pump prime
118 –
119 –
120 Fuel pump prime
121 Right HID
headlamp
122 Left HID headlamp
123 Right cooling fan
Relays Usage
9 Fuel pump
29 Upfitter 2 Relays Usage
37 Upfitter 3
48 Upfitter 4
51 Parking lamp
64 Secondary
fuel pump
72 Upfitter 1
84 Run/Crank
92 Engine control
module
112 Starter Instrument Panel Fuse
Block (Left)
The left instrument panel fuse block
access door is on the driver side
edge of the instrument panel.
Pull off the cover to access the fuse
block.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Vehicle Care 315
The vehicle may not be equipped
with all of the fuses, relays, and
features shown. Fuses Usage
1 –
2 – Fuses Usage
3 –
4 Accessory power
outlet 1
5 Retained accessory
power
6 APO/BATT
7 Universal garage door
opener/Interior
rearview mirror
8 SEO/Retained
accessory power
9 –
10 Body control module 3
11 Body control module 5
12 Steering wheel control
backlighting
13 –
14 –
15 –
16 Discrete logic ignition
sensor
17 Video processing
module

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
316 Vehicle Care Fuses Usage
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
30 –
31 –
32 – Fuses Usage
33 SEO/Automatic level
control/Left
heated 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
44 Driver power seat
45 – Fuses Usage
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 –
52 Retained accessory
power relay
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 - 6/20/17
Vehicle Care 317
Instrument Panel Fuse
Block (Right)
The right instrument panel fuse
block access door is on the
passenger side edge of the
instrument panel.
Pull off the cover to access the fuse
block.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown. Fuses Usage
1 –
2 –

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Vehicle Care 319Relays Usage
52 Retained accessory
power
Rear Compartment Fuse
Block
The rear compartment fuse block is
behind the access panel on the left
side of the compartment.
Pull the panel out by grabbing the
finger access slot at the rear edge. The vehicle may not be equipped
with all of the fuses, relays, and
features shown. Fuses Usage
1 Rear window
defogger relay
2 –
3 Right heated second
row seat
4 Heated mirrors
5 Liftgate
6 Glass breakage
7 Liftglass
8 Liftgate module logic
9 Rear wiper
10 Rear heating,
ventilation, and air
conditioning blower
11 Second row seat
12 Liftgate module
13 Third row seat
14 Rear accessory power
outlet
15 Rear window
defogger
16 Liftgate

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
320 Vehicle Care Fuses Usage
17 Liftglass
18 Rear fog lamp (if
equipped)
19 Rear fog lamp (if
equipped)
20 Heated mirror
Relays Usage
1 Rear window
defogger
Wheels and Tires Tires Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{ Warning.
Poorly maintained and
improperly used tires are
dangerous. .
Overloading the tires can
cause overheating as a
result of too much
flexing. There could be a
blowout and a serious
crash. See Vehicle Load
Limits 0 200 .
(Continued) Warning (Continued) .
Underinflated tires pose
the same danger as
overloaded tires. The
resulting crash could
cause serious injury.
Check all tires frequently
to maintain the
recommended pressure.
Tire pressure should be
checked when the tires
are cold. .
Overinflated tires are
more likely to be cut,
punctured, or broken by
a sudden impact — such
as when hitting a pothole.
Keep tires at the
recommended pressure.
.
Worn or old tires can
cause a crash. If the
tread is badly worn,
replace them.
(Continued)

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
OnStar 401Or
.
Make a call, end a call,
or answer an incoming call.
.
Give OnStar Hands-Free Calling
voice commands.
.
Give OnStar Turn-by-Turn
Navigation voice commands.
.
Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
Press
Q to connect to an
Advisor to:
.
Verify account information or
update contact information.
.
Get driving directions.
.
Receive a Diagnostic check of
the vehicle's key operating
systems. .
Receive Roadside Assistance.
.
Manage Wi-Fi Settings,
if equipped.
Press
> to get a priority connection
to an OnStar Advisor available 24/
7 to:
.
Get help for an emergency.
.
Be a Good Samaritan or
respond to an AMBER Alert.
.
Get assistance in severe
weather or other crisis situations
and find evacuation routes. OnStar Services Emergency Emergency Services require an
active, OnStar service plan
(excludes Basic Plan). With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor
who is immediately connected in to
the vehicle to help.
Press
> for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and
relay important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Assistance, Advisors
can locate a nearby service provider
to help with a flat tire, a battery
jump, or an empty gas tank.