shift lock GMC YUKON 2020 Owner's Guide

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Vehicle Care 363
engine and supports the
resonator, on the vehicle with
the dead battery.
10. Start the vehicle with the good battery and run the engine for a
while.
11. Try to start the vehicle that had the dead battery. If it will not
start after a few tries, it
probably needs service.
Caution
If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
vehicle. The repairs would not be
covered by the vehicle warranty.
Always connect and remove the
jumper cables in the correct order,
making sure that the cables do
not touch each other or other
metal. Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables.
After starting the disabled vehicle
and removing the jumper cables,
allow it to idle for several minutes.
Towing the Vehicle
Caution
Incorrectly towing a disabled
vehicle may cause damage. The
damage would not be covered by
the vehicle warranty. Do not lash
or hook to suspension
components. Use the proper
straps around the tires to secure
the vehicle. Do not drag a locked
wheel/tire. Use tire skates or
dollies under any locked wheel/
tire while loading the vehicle. Do
not use a sling type lift to tow the
vehicle. This could damage the
vehicle.
Caution
If the vehicle cannot be shifted
into Neutral (N), do not use the
tow eye to tow the vehicle.
Vehicle damage may occur.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
366 Vehicle Care
4. Shift the transfer case toN (Neutral). See “Shifting into
N (Neutral)” underFour-Wheel
Drive 0219. Check that the
vehicle is in N (Neutral) by
starting the engine and shifting
the transmission to
R (Reverse) and then to D
(Drive). There should be no
movement of the vehicle while
shifting.
5. Shift the transmission into D (Drive). Turn the engine off.
Caution
Failure to disconnect the negative
battery cable or to have it contact
the terminals can cause damage
to the vehicle.
6. Disconnect the negative battery cable at the battery and
secure the nut and bolt. Cover
the negative battery post with a
non-conductive material to
prevent any contact with the
negative battery terminal. 7. Shift the transmission to
P (Park).
Caution
If the steering column is locked,
vehicle damage may occur.
8. Move the steering wheel to make sure the steering column
is unlocked.
9. With a foot on the brake pedal, release the parking brake.
10. Keep the ignition key in the towed vehicle in ACC/
ACCESSORY to prevent the
steering column from locking.
If equipped with Keyless
Access, keep the RKE
transmitter outside of the
vehicle, and manually lock the
doors. Access the vehicle as if
it has a dead RKE transmitter
battery, by using the key in the
door lock. Disconnecting the Towed Vehicle
Before disconnecting the towed
vehicle:
1. Park on a level surface.
2. Set the parking brake, then shift the transmission to
P (Park).
3. Connect the battery.
4. Apply the brake pedal.
5. Turn the ignition to ON/RUN with the engine off. Shift the
transfer case out of N (Neutral)
to 2
m. See “Shifting out of
N (Neutral)” underFour-Wheel
Drive 0219. See your dealer if
the transfer case cannot be
shifted out of N (Neutral).
6. Check that the vehicle is in 2
m
by starting the engine and
shifting the transmission to
R (Reverse) and then to D
(Drive). There should be
movement of the vehicle while
shifting.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Vehicle Care 367
7. Shift the transmission toP (Park) and turn off the
ignition.
8. Disconnect the vehicle from the tow vehicle.
9. Release the parking brake.
10. Reset any lost presets. The outside temperature
display will default to 0 °C (32 °
F) but will reset with normal
usage.
Dolly TowingCaution
Do not tow this vehicle with two
wheels on the ground, or vehicle
damage could occur. This
damage would not be covered by
the vehicle warranty.
Dolly towing this vehicle is not
allowed with either the front or the
rear tires on the ground for
two-wheel drive or four-wheel drive,
regardless of transfer case.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using. See
Recommended Fluids and
Lubricants 0388.
Washing the Vehicle
To preserve the vehicle's finish,
wash it often and out of direct
sunlight.
Caution
Do not use petroleum-based,
acidic, or abrasive cleaning
agents as they can damage the
vehicle's paint, metal, or plastic
parts. If damage occurs, it would
not be covered by the vehicle
warranty. Approved cleaning
products can be obtained from
(Continued)

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
428 Index
Monitor System, TirePressure . . . . . . . . . . . . . . . . . . . . . . 335
N
Navigation
Connected Services . . . . . . . . . . 418
Net, Convenience . . . . . . . . . . . . . . 112
New Vehicle Break-In . . . . . . . . . . . 201
Noise Control System . . . . . . . . . . 306
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 129 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 188 Driving . . . . . . . . . . . . . . . . . . . . . . . . 188
Recovery . . . . . . . . . . . . . . . . . . . . . 187
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 289
Engine Oil Life System . . . . . . . 291
Engine Oil Pressure Gauge . . . 130
Pressure Light . . . . . . . . . . . . . . . . 142
Older Children, Restraints . . . . . . . 86
Online Owner Center . . . . . . . . . . . 399
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 409
OnStar Additional
Information . . . . . . . . . . . . . . . . . . . . 412
OnStar Emergency . . . . . . . . . . . . . 411
OnStar Overview . . . . . . . . . . . . . . . 410
OnStar Security . . . . . . . . . . . . . . . . 412 Operation
Fog Lamps . . . . . . . . . . . . . . . . . . . 169
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 120
Overheating, Engine . . . . . . . . . . . . 300
Overview Instrument Panel . . . . . . . . . . . . . . . . 5
P
Park
Shifting Out of . . . . . . . . . . . . . . . . 210
Park Assist . . . . . . . . . . . . . . . . . . . . . 242
Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 225
Brake and P (Park)Mechanism Check . . . . . . . . . . 309
Extended . . . . . . . . . . . . . . . . . . . . . .211
Over Things That Burn . . . . . . . .211
Parking or Backing Assistance Systems . . . . . . . . . . 242
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . 135
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Passenger Sensing System . . . . . 80
Perchlorate Materials Requirements, California . . . . . . 283 Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 152
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 25
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Outlets . . . . . . . . . . . . . . . . . . . . . . . 120
Protection, Battery . . . . . . . . . . . . 172
Retained Accessory (RAP) . . . 209
Seat Adjustment . . . . . . . . . . . . . . . . 48
Windows . . . . . . . . . . . . . . . . . . . . . . . 42
Power Assist Steps . . . . . . . . . . . . . . 32
Pregnancy, Using Seat Belts . . . . 70
Privacy
Vehicle Data Recording . . . . . . . 407
Program Courtesy Transportation . . . . . . 402
Prohibited Fuels . . . . . . . . . . . . . . . . 255
Proposition 65 Warning,
California . . . . . . . . . . . .282, 305, 360, Back Cover
Publication Ordering Information . . . . . . . . . . . . . . . . . . . . 405
R
Radio Frequency Statement . . . . 405
Reading Lamps . . . . . . . . . . . . . . . . . 171
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 306

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
430 Index
Seats (cont'd)Second Row . . . . . . . . . . . . . . . . . . . . 56
Third Row Seat . . . . . . . . . . . . . . . . . 60
Second Row Seats . . . . . . . . . . . . . . 56
Securing Child
Restraints . . . . . . . . . . .103, 105, 106
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 143
OnStar . . . . . . . . . . . . . . . . . . . . . . . 412
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 33
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 33
Service . . . . . . . . . . . . . . . . . . . . . . . . . 182 Accessories andModifications . . . . . . . . . . . . . . . . 283
Doing Your Own Work . . . . . . . . 283
Maintenance Records . . . . . . . . 391
Maintenance, General Information . . . . . . . . . . . . . . . . . . 377
Parts Identification . . . . . . . . . . . . 392
Scheduling Appointments . . . . . 401
Services Special Application . . . . . . . . . . . 384
Servicing the Airbag . . . . . . . . . . . . . 84
Shift Lock Control Function
Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 308
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 209 Shifting (cont'd)
Out of Park . . . . . . . . . . . . . . . . . . . 210
Side Blind Zone Alert (SBZA) . . . 249
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 169
Special Application Services . . . . 384
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 393
Speedometer . . . . . . . . . . . . . . . . . . . 129
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . 140
Start Assist, Hill . . . . . . . . . . . . . . . . . 225
Start Vehicle, Remote . . . . . . . . . . . 23
Starter Switch Check . . . . . . . . . . . 308
Starting the Engine . . . . . . . . . . . . . 206
Steering . . . . . . . . . . . . . . . . . . . . . . . . 186 Heated Wheel . . . . . . . . . . . . . . . . .116
Wheel Adjustment . . . . . . . . . . . . .115
Wheel Controls . . . . . . . . . . . . . . . .116
Steering Column Lock . . . . . . . . . . . 35
Steps Power Assist . . . . . . . . . . . . . . . . . . . 32
Storage
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . .110
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . .110
Center Console . . . . . . . . . . . . . . . .110
Convenience Net . . . . . . . . . . . . . .112 Storage Areas (cont'd)
Floor Console . . . . . . . . . . . . . . . . . 111
Glove Box . . . . . . . . . . . . . . . . . . . . 109
Roof Rack System . . . . . . . . . . . . .112
Sunglasses . . . . . . . . . . . . . . . . . . . .110
Storage Compartments . . . . . . . . . 109
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 195
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 43
Sunglass Storage . . . . . . . . . . . . . . . 110
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System
Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 245
Infotainment . . . . . . . . . . . . . 174, 409
Noise Control . . . . . . . . . . . . . . . . . 306
Roof Rack . . . . . . . . . . . . . . . . . . . . .112
Systems Driver Assistance . . . . . . . . . . . . . 240
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 129
Text Telephone (TTY) Users . . . . 399
Theft-Deterrent Systems . . . . . . . . . 36Immobilizer . . . . . . . . . . . . . . . . . . . . . 36
Third-Row Seats . . . . . . . . . . . . . . . . . 60