2019 GMC YUKON Lighting

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
Lighting 189
moving up or down. This is normal.
If there is a problem, an alert will be
displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all the
power that is needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, fog
lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power, whenever
needed. It can temporarily reduce
the power demands of some
accessories.
Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommended
that the driver reduce the electrical
loads as much as possible.
Battery Power Protection
This feature shuts off the dome and
reading lamps if they are left on for
more than 10 minutes when the
ignition is off. This will keep the
battery from running down.
Exterior Lighting Battery
Saver
The exterior lamps turn off about
10 minutes after the ignition is
turned off, if the parking lamps or
headlamps have been manually left
on. This protects against draining
the battery. To restart the 10-minute
timer, turn the exterior lamp control
to the
Oposition and then back to
the
;or2position.
To keep the lamps on for more than
10 minutes, the ignition must be on
or in ACC/ACCESSORY.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
268 Driving and Operating
steering, an alert, chime, or DIC
message may be provided. Steer
the vehicle to dismiss.
When the System Does Not
Seem to Work Properly
The system performance may be
affected by:
.Close vehicles ahead.
. Sudden lighting changes, such
as when driving through tunnels.
. Banked roads.
. Roads with poor lane markings,
such as two-lane roads. If the LKA system is not functioning
properly when lane markings are
clearly visible, cleaning the
windshield may help.
A system unavailable message may
display if the camera is blocked.
The LKA system does not need
service.
LKA assistance and/or LDW alerts
may occur due to tar marks,
shadows, cracks in the road,
temporary or construction lane
markings, or other road
imperfections. This is normal system
operation; the vehicle does not need
service. Turn LKA off if these
conditions continue.
Fuel
Top Tier Fuel
GM recommends the use of TOP
TIER Detergent Gasoline to keep
the engine clean, reduce engine
deposits, and maintain optimal
vehicle performance. Look for the
TOP TIER Logo or see
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline marketers
and applicable countries.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
Vehicle Care 295
Vehicle Care
General Information
General Information . . . . . . . . . . 296
California Proposition65 Warning . . . . . . . . . . . . . . . . . 296
California Perchlorate Materials Requirements . . . . . 297
Accessories and Modifications . . . . . . . . . . . . . . . . 297
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 297
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 298
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 299
Engine Oil . . . . . . . . . . . . . . . . . . . . 302
Engine Oil Life System . . . . . . . 304
Automatic Transmission Fluid (6-Speed Transmission) . . . . . 305
Automatic Transmission Fluid (10 Speed Transmission) . . . 308
Engine Air Cleaner/Filter . . . . . . 309
Cooling System . . . . . . . . . . . . . . 310
Engine Overheating . . . . . . . . . . 313
Engine Fan . . . . . . . . . . . . . . . . . . . 315
Washer Fluid . . . . . . . . . . . . . . . . . 315
Brakes . . . . . . . . . . . . . . . . . . . . . . . 316 Brake Fluid . . . . . . . . . . . . . . . . . . . 317
Battery - North America . . . . . . 318
Four-Wheel Drive . . . . . . . . . . . . . 318
Front Axle . . . . . . . . . . . . . . . . . . . . 319
Rear Axle . . . . . . . . . . . . . . . . . . . . 320
Noise Control System . . . . . . . . 320
Starter Switch Check . . . . . . . . . 321
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 322
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 322
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 322
Wiper Blade Replacement . . . . 323
Glass Replacement . . . . . . . . . . 324
Windshield Replacement . . . . . 324
Gas Strut(s) . . . . . . . . . . . . . . . . . . 324
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 325
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 326
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 326
LED Lighting . . . . . . . . . . . . . . . . . 326
Fog Lamps . . . . . . . . . . . . . . . . . . . 326
Back-Up Lamps . . . . . . . . . . . . . . 327
License Plate Lamp . . . . . . . . . . 328
Electrical System
Electrical System Overload . . . 329
Fuses and Circuit Breakers . . . 329
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 330
Instrument Panel Fuse Block
(Right) . . . . . . . . . . . . . . . . . . . . . . 334
Instrument Panel Fuse Block (Left) . . . . . . . . . . . . . . . . . 337
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 339
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 341
All-Season Tires . . . . . . . . . . . . . . 342
Winter Tires . . . . . . . . . . . . . . . . . . 342
Low-Profile Tires . . . . . . . . . . . . . 342
All-Terrain Tires . . . . . . . . . . . . . . . 343
Tire Sidewall Labeling . . . . . . . . 343
Tire Designations . . . . . . . . . . . . . 344
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 345
Tire Pressure . . . . . . . . . . . . . . . . . 348
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 349
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 349
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 350
Tire Inspection . . . . . . . . . . . . . . . . 354

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
326 Vehicle Care
Bulb Replacement
For the proper type of replacement
bulbs, or any bulb changing
procedure not listed in this section,
contact your dealer.
Caution
Do not replace incandescent
bulbs with aftermarket LED
replacement bulbs. This can
cause damage to the vehicle
electrical system.
High Intensity Discharge
(HID) Lighting
{Warning
The High Intensity Discharge
(HID) lighting system operates at
a very high voltage. If you try to
service any of the system
components, you could be
seriously injured. Have your
dealer or a qualified technician
service them.
After an HID headlamp bulb has
been replaced, the beam might be a
slightly different shade than it was
originally. This is normal.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
Fog Lamps
To replace the front fog lamp bulb: 1. Locate the fog lamp under the front bumper.
2. Disconnect the electrical connector from the fog lamp
bulb assembly by pressing the
connector release.
3. Turn the bulb counterclockwise to remove it from the housing.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
338 Vehicle Care
FusesUsage
3 –
4 Accessory power outlet 1
5 Accessory power outlet from retained
accessory power
6 Accessory power outlet from battery
power
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 – Fuses
Usage
16 Discrete logic ignition sensor
17 Video processing module/Virtual key
module
18 Mirror window module
19 Body control module 1
20 Front bolster
21 –
22 –
23 –
24 HVAC ignition/AUX HVAC ignition
25 Instrument cluster/ Ignition sensing
diagnostic module
ignition
26 Tilt column/Tilt column lock 1/SEO 1/SEO 2
27 Data link connector/ Driver seat module Fuses
Usage
28 Passive locking, Passive
theft-deterrent/HVAC
battery
29 Content theft deterrent
30 –
31 –
32 –
33 SEO//Left heated seat
34 Park enable/Electric adjustable pedal
35 –
36 Miscellaneous/Run crank
37 Heated steering wheel
38 Steering column lock 2
39 Instrument cluster battery
40 –
41 –

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
438 Index
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 415
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 260
Assistance Systems for Parking and Backing . . . . . . . . . . 256
Automatic
Dimming Mirrors . . . . . . . . . . . . . . . . 58
Door Locks . . . . . . . . . . . . . . . . . . . . . 45
Forward Braking . . . . . . . . . . . . . . 262
Headlamp System . . . . . . . . . . . . 184
Level Control . . . . . . . . . . . . . . . . . 245
Transmission . . . . . . . . . . . . . . . . . 228
Transmission Fluid . . . . . . 305, 308
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 231
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 322
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 319
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 320
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 189
Load Management . . . . . . . . . . . . 188 Battery (cont'd)
Power Protection . . . . . . . . . . . . . 189
Battery - North America . . . . 318, 374
Blade Replacement, Wiper . . . . . 323
Blind Spot Mirrors . . . . . . . . . . . . . . . 58
Brake Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 216
System Warning Light . . . . . . . . 155
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 316 Antilock . . . . . . . . . . . . . . . . . . . . . . . 239
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 241
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Parking . . . . . . . . . . . . . . . . . . . . . . . 240
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 201 Automatic Forward . . . . . . . . . . . 262
Break-In, New Vehicle . . . . . . . . . . 216
Bulb Replacement Back-up Lamps . . . . . . . . . . . . . . . 327
Fog Lamps . . . . . . . . . . . . . . . . . . . 326
Headlamp Aiming . . . . . . . . . . . . . 325
Headlamps . . . . . . . . . . . . . . . . . . . 326
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 326
License Plate Lamps . . . . . . . . . 328
Buying New Tires . . . . . . . . . . . . . . . 357
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 136
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 297
California Proposition
65 Warning . . . . . . . . . .296, 318, 374, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 409
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 227
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 47
Winter Driving . . . . . . . . . . . . . . . . 209
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . 129
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 128
Center Seat . . . . . . . . . . . . . . . . . . . . . 67
Chains, Tire . . . . . . . . . . . . . . . . . . . . 361
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 139
Charging System Light . . . . . . . . . 152
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 153

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
440 Index
Driver InformationCenter (DIC) . . . . . . . . . . . . . . . . . . 161
Driving Assistance Systems . . . . . . . . . . 260
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 273
Defensive . . . . . . . . . . . . . . . . . . . . . 201
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 201
For Better Fuel Economy . . . . . . . 27
Hill and Mountain Roads . . . . . . 209
If the Vehicle is Stuck . . . . . . . . . .211
Loss of Control . . . . . . . . . . . . . . . 203
Off-Road . . . . . . . . . . . . . . . . . . . . . 203
Off-Road Recovery . . . . . . . . . . . 202
Vehicle Load Limits . . . . . . . . . . . 212
Wet Roads . . . . . . . . . . . . . . . . . . . 208
Winter . . . . . . . . . . . . . . . . . . . . . . . . 209
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 191
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 270
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 294
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 330
Fuses and Circuit Breakers . . . 329 Electrical System (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 334, 337
Overload . . . . . . . . . . . . . . . . . . . . . 329
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 339
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 426
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 309
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 153
Compartment Overview . . . . . . . 299
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 148
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 158
Cooling System . . . . . . . . . . . . . . . 310
Drive Belt Routing . . . . . . . . . . . . 410
Exhaust . . . . . . . . . . . . . . . . . . . . . . 227
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Heater . . . . . . . . . . . . . . . . . . . . . . . . 223
Oil Life System . . . . . . . . . . . . . . . 304
Oil Pressure Gauge . . . . . . . . . . 147
Oil Pressure Light . . . . . . . . . . . . 159
Overheating . . . . . . . . . . . . . . . . . . 313
Power Messages . . . . . . . . . . . . . 168
Running While Parked . . . . . . . . 228 Engine (cont'd)
Starting . . . . . . . . . . . . . . . . . . . . . . . 221
Entry Lighting . . . . . . . . . . . . . . . . . . . 188
Equipment, Towing . . . . . . . . . . . . . 284
Event Data Recorders . . . . . . . . . . 423
Exit Lighting . . . . . . . . . . . . . . . . . . . . 188
Extended Parking . . . . . . . . . . . . . . . 226
Extender, Seat Belt . . . . . . . . . . . . . . 90
Exterior Lamp Controls . . . . . . . . . 181
Exterior Lamps Off Reminder . . . 183
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 189
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 315
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter,
Engine Air Cleaner . . . . . . . . . . . 309
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 184
Flashers, Hazard Warning . . . . . . 185
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 362 Changing . . . . . . . . . . . . . . . . . . . . . 363
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Floor Console Storage . . . . . . . . . . 129
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 391

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
442 Index
Headlamps (cont'd)High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 326
High-Beam On Light . . . . . . . . . . 160
High/Low Beam Changer . . . . . 183
Lamps On Reminder . . . . . . . . . 160
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 74
Steering Wheel . . . . . . . . . . . . . . . 133
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Heated Mirrors . . . . . . . . . . . . . . . . . . . 58
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 223
Heating . . . . . . . . . . . . . . . . . . . . 191, 195
High-Beam On Light . . . . . . . . . . . . 160
High-Speed Operation . . . . . . . . . . 349
Hill and Mountain Roads . . . . . . . . 209
Hill Descent Control (HDC) . . . . . 244
Hill Start Assist (HSA) . . . . . . . . . . 241
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 82
HVAC . . . . . . . . . . . . . . . . . . . . . . 191, 195I
Ignition Positions . . . . . . . . . . 217, 219
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 322
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 55
Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 157
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . 106
Information
Publication Ordering . . . . . . . . . . 420
Infotainment . . . . . . . . . . . . . . . . . . . . 190
Infotainment System . . . . . . . . . . . . 424
Instrument Cluster . . . . . . . . . . . . . . 143
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . 126
Interior Rearview Mirrors . . . . . . . . . 60
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 374
K
Keyless EntryRemote (RKE) System . . . . . 34, 41
Keys . . . . . . . . . . . . . . . . . . . . . . . . . 29, 30
L
Labeling, Tire Sidewall . . . . . . . . . . 343
Lamps Daytime Running (DRL) . . . . . . 184
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 187
Exterior Controls . . . . . . . . . . . . . . 181
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 183
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 189
License Plate . . . . . . . . . . . . . . . . . 328
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 153
On Reminder . . . . . . . . . . . . . . . . . 160
Reading . . . . . . . . . . . . . . . . . . . . . . 187
Lane Change Alert (LCA) . . . . . . . 264
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 266
Lane Keep Assist (LKA) . . . . . . . . 266
Lane Keep Assist Light . . . . . . . . . 156
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 89
Lap-Shoulder Belt . . . . . . . . . . . . . . . 84
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 120
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . 111
LED Lighting . . . . . . . . . . . . . . . . . . . . 326