AUTO BATTERY GMC YUKON 2020 User Guide

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Vehicle Care 361
unwanted ground connection.
You would not be able to start
your vehicle, and the bad
grounding could damage the
electrical systems.
To avoid the possibility of the
vehicles rolling, set the parking
brake firmly on both vehicles
involved in the jump start
procedure. Put the automatic
transmission in P (Park) or a
manual transmission in Neutral
before setting the parking
brake. For vehicles with
four-wheel-drive with a
N (Neutral) transfer case
position, be sure the transfer
case is in a drive gear—not
N (Neutral).
Caution
If any accessories are left on or
plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
(Continued)
Caution (Continued)
warranty. Whenever possible, turn
off or unplug all accessories on
either vehicle when jump starting.
3. Turn the ignition off on both vehicles. Unplug unnecessary
accessories plugged into the
accessory power outlets. Turn
off the radio and all the lamps
that are not needed. This will
avoid sparks and help save
both batteries. And it could
save the radio!
4. Open the hood on the other vehicle and locate the
positive (+) and negative (−)
terminal locations on that
vehicle.
The positive (+) terminal is
under a red plastic cover at the
positive battery post. To
uncover the positive (+)
terminal, open the red plastic
cover. For more information on the
location of the remote
positive (+) and remote
negative (−) terminals, see
Engine Compartment Overview
0
286.
{Warning
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
{Warning
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
and some have been blinded.
Use a flashlight if you need more
light.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
(Continued)

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
OnStar 411
Press=to:
. Open the OnStar app on the
infotainment display. See the
infotainment manual for
information on how to use the
OnStar app.
Or
. Give OnStar Turn-by-Turn
Navigation voice commands.
. Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
Press
Qto 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 safety and security 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.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
422 Index
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 400
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 245
Assistance Systems for Parking and Backing . . . . . . . . . . 242
Automatic
Dimming Mirrors . . . . . . . . . . . . . . . . 39
Door Locks . . . . . . . . . . . . . . . . . . . . . 25
Emergency Braking (AEB) . . . . 248
Headlamp System . . . . . . . . . . . . 167
Level Control . . . . . . . . . . . . . . . . . 229
Transmission . . . . . . . . . . . . . . . . . 213
Transmission Fluid . . . . . . 292, 295
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 216
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 308
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 306
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 306
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 173
Load Management . . . . . . . . . . . . 172 Battery (cont'd)
Power Protection . . . . . . . . . . . . . 172
Battery - North America . . . . 305, 360
Blade Replacement, Wiper . . . . . 309
Blind Spot Mirrors . . . . . . . . . . . . . . . 39
Brake Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 201
System Warning Light . . . . . . . . 138
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Antilock . . . . . . . . . . . . . . . . . . . . . . . 224
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 225
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Parking . . . . . . . . . . . . . . . . . . . . . . . 225
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 186 AutomaticEmergency (AEB) . . . . . . . . . . . 248
Break-In, New Vehicle . . . . . . . . . . 201
Bulb Replacement
Back-up Lamps . . . . . . . . . . . . . . . 313
Fog Lamps . . . . . . . . . . . . . . . . . . . 312
Headlamp Aiming . . . . . . . . . . . . . 312
Headlamps . . . . . . . . . . . . . . . . . . . 312
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 312
License Plate Lamps . . . . . . . . . 314
Buying New Tires . . . . . . . . . . . . . . . 342
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 119
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 283
California Proposition
65 Warning . . . . . . . . . .282, 305, 360, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 393
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 212
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 27
Winter Driving . . . . . . . . . . . . . . . . 194
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . .112
Caution, Danger, and Warning . . . . 3
Center Console Storage . . . . . . . . 110
Center Seat . . . . . . . . . . . . . . . . . . . . . 48
Chains, Tire . . . . . . . . . . . . . . . . . . . . 347
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 122
Charging System Light . . . . . . . . . 135
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 136

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
424 Index
DrivingAssistance Systems . . . . . . . . . . 245
Better Fuel Economy . . . . . . . . . 184
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 259
Defensive . . . . . . . . . . . . . . . . . . . . . 185
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 185
Hill and Mountain Roads . . . . . . 193
If the Vehicle is Stuck . . . . . . . . . 195
Loss of Control . . . . . . . . . . . . . . . 187
Off-Road . . . . . . . . . . . . . . . . . . . . . 188
Off-Road Recovery . . . . . . . . . . . 187
Vehicle Load Limits . . . . . . . . . . . 196
Wet Roads . . . . . . . . . . . . . . . . . . . 193
Winter . . . . . . . . . . . . . . . . . . . . . . . . 194
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 175
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 255
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 280
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 315
Fuses and Circuit Breakers . . . 315
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 320, 323 Electrical System (cont'd)
Overload . . . . . . . . . . . . . . . . . . . . . 314
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 325
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . .411
Engine Air Cleaner/Filter . . . . . . . . . . . . . 296
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 136
Compartment Overview . . . . . . . 286
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 131
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 141
Cooling System . . . . . . . . . . . . . . . 297
Drive Belt Routing . . . . . . . . . . . . 395
Exhaust . . . . . . . . . . . . . . . . . . . . . . 212
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Heater . . . . . . . . . . . . . . . . . . . . . . . . 207
Oil Life System . . . . . . . . . . . . . . . 291
Oil Pressure Gauge . . . . . . . . . . 130
Oil Pressure Light . . . . . . . . . . . . 142
Overheating . . . . . . . . . . . . . . . . . . 300
Power Messages . . . . . . . . . . . . . 151
Running While Parked . . . . . . . . 212
Starting . . . . . . . . . . . . . . . . . . . . . . . 206
Entry Lighting . . . . . . . . . . . . . . . . . . . 171 Equipment, Towing . . . . . . . . . . . . . 270
Event Data Recorders . . . . . . . . . . 408
Exit Lighting . . . . . . . . . . . . . . . . . . . . 171
Extended Parking . . . . . . . . . . . . . . . 211
Extender, Seat Belt . . . . . . . . . . . . . . 71
Exterior Lamp Controls . . . . . . . . . 164
Exterior Lamps Off Reminder . . . 166
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 173
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 302
Filter, Engine Air Cleaner . . . . . . . . . . . 296
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 167
Flashers, Hazard Warning . . . . . . 168
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 347 Changing . . . . . . . . . . . . . . . . . . . . . 349
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Floor Console Storage . . . . . . . . . . 111
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 375
Fluid AutomaticTransmission . . . . . . . . . . . 292, 295
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 304

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
426 Index
Headlamps (cont'd)Lamps On Reminder . . . . . . . . . 143
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 55
Steering Wheel . . . . . . . . . . . . . . . .116
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Heated Mirrors . . . . . . . . . . . . . . . . . . . 39
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 207
Heating . . . . . . . . . . . . . . . . . . . . 175, 179
High-Beam On Light . . . . . . . . . . . . 143
High-Speed Operation . . . . . . . . . . 334
Hill and Mountain Roads . . . . . . . . 193
Hill Descent Control (HDC) . . . . . 228
Hill Start Assist (HSA) . . . . . . . . . . 225
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 63
HVAC . . . . . . . . . . . . . . . . . . . . . . 175, 179
I
Ignition Positions . . . . . . . . . . 202, 204
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 308
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 36 Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 140
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 88
Information Publication Ordering . . . . . . . . . . 405
Infotainment . . . . . . . . . . . . . . . . . . . . 174
Infotainment System . . . . . . . . . . . . 409
Instrument Cluster . . . . . . . . . . . . . . 126
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 41
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 360
K
Keyless EntryRemote (RKE) System . . . . . 13, 16
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . .9, 10
L
Labeling, Tire Sidewall . . . . . . . . . . 329
Lamps Daytime Running (DRL) . . . . . . 167
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 170
Exterior Controls . . . . . . . . . . . . . . 164 Lamps (cont'd)
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 166
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 173
License Plate . . . . . . . . . . . . . . . . . 314
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 136
On Reminder . . . . . . . . . . . . . . . . . 143
Reading . . . . . . . . . . . . . . . . . . . . . . 171
Lane Change Alert (LCA) . . . . . . . 250
Lane Keep Assist (LKA) . . . . . . . . 251
Lane Keep Assist Light . . . . . . . . . 139
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 71
Lap-Shoulder Belt . . . . . . . . . . . . . . . 65
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . 103
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 93
LED Lighting . . . . . . . . . . . . . . . . . . . . 312
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . 229
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 171
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Illumination Control . . . . . . . . . . . 170