2020 GMC YUKON recommended fluids

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Service and Maintenance 377
Service and
Maintenance
General Information
General Information . . . . . . . . . . 377
Maintenance Schedule
Maintenance Schedule . . . . . . . 379
Special Application Services
Special ApplicationServices . . . . . . . . . . . . . . . . . . . . 384
Additional Maintenance
and Care
Additional Maintenanceand Care . . . . . . . . . . . . . . . . . . . . 385
Recommended Fluids,
Lubricants, and Parts
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 388
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . 390
Maintenance Records
Maintenance Records . . . . . . . . 391
General Information
Your vehicle is an important
investment. This section describes
the required maintenance for the
vehicle. Follow this schedule to help
protect against major repair
expenses resulting from neglect or
inadequate maintenance. It may
also help to maintain the value of
the vehicle if it is sold. It is the
responsibility of the owner to have
all required maintenance performed.
Your dealer has trained technicians
who can perform required
maintenance using genuine
replacement parts. They have
up-to-date tools and equipment for
fast and accurate diagnostics. Many
dealers have extended evening and
Saturday hours, courtesy
transportation, and online
scheduling to assist with service
needs.
Your dealer recognizes the
importance of providing
competitively priced maintenance
and repair services. With trained
technicians, the dealer is the place for routine maintenance such as oil
changes and tire rotations and
additional maintenance items like
tires, brakes, batteries, and wiper
blades.
Caution
Damage caused by improper
maintenance can lead to costly
repairs and may not be covered
by the vehicle warranty.
Maintenance intervals, checks,
inspections, recommended fluids,
and lubricants are important to
keep the vehicle in good working
condition.
Do not have chemical flushes that
are not approved by GM
performed on the vehicle. The
use of flushes, solvents, cleaners,
or lubricants that are not
approved by GM could damage
the vehicle, requiring expensive
repairs that are not covered by
the vehicle warranty.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Service and Maintenance 385
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required.
It is recommended that your dealer
perform these services—their
trained dealer technicians know
your vehicle best. Your dealer can
also perform a thorough
assessment with a multi-point
inspection to recommend when your
vehicle may need attention.
The following list is intended to
explain the services and conditions
to look for that may indicate
services are required.
Battery
The 12-volt battery supplies power
to start the engine and operate any
additional electrical accessories. .
To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of
cracking or splitting.
. Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary.
Brakes
Brakes stop the vehicle and are
crucial to safe driving.
. Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping. .
Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants 0388 for GM approved
fluids.
. Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled.
Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
388 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission (Except Denali) DEXRON-VI Automatic Transmission Fluid.
Automatic Transmission (Denali Only) DEXRON ULV Automatic Transmission Fluid (GM Part No. 19352619, in
Canada 19352620).
Chassis Lubrication Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. SeeCooling System 0297.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil
0 289.
Front Axle (Four-Wheel Drive) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88900401, in Canada 89021678).
Front Axle Propshaft Spline or One-Piece Propshaft Spline (Two-Wheel Drive) Spline Lubricant, Special Lubricant (GM Part No. 19257121, in
Canada 19257122).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19353127).

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Technical Data 393
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and
Lubricants 0388 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Engine Cooling System* 5.3L V8 16.8 L 17.8 qt
6.2L V8 16.8 L 17.8 qt
Engine Oil with Filter 5.3L V8 7.6 L 8.0 qt
6.2L V8 7.6 L 8.0 qt
Fuel Tank Short Wheelbase 98.4 L 26.0 gal
Long Wheelbase 119.2 L 31.5 gal
Transfer Case Fluid 1.5 L 1.6 qt

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
Index 427
Lighting (cont'd)LED . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Lights Airbag Readiness . . . . . . . . . . . . . 134
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 138
Brake System Warning . . . . . . . 138
Charging System . . . . . . . . . . . . . 135
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 136
Cruise Control . . . . . . . . . . . . . . . . 144
Door Ajar . . . . . . . . . . . . . . . . . . . . . 144
Engine Coolant Temperature Warning . . . . . . . 141
Engine Oil Pressure . . . . . . . . . . 142
Flash-to-Pass . . . . . . . . . . . . . . . . . 167
Four-Wheel-Drive . . . . . . . . . . . . . 139
Front Fog Lamp . . . . . . . . . . . . . . 143
High-Beam On . . . . . . . . . . . . . . . . 143
High/Low Beam Changer . . . . . 166
Lane Keep Assist . . . . . . . . . . . . . 139
Low Fuel Warning . . . . . . . . . . . . 142
Seat Belt Reminders . . . . . . . . . . 133
Security . . . . . . . . . . . . . . . . . . . . . . 143
StabiliTrak OFF . . . . . . . . . . . . . . . 140
Tire Pressure . . . . . . . . . . . . . . . . . 141
Tow/Haul Mode . . . . . . . . . . . . . . . 139 Lights (cont'd)
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 141
Traction Off . . . . . . . . . . . . . . . . . . . 140
Lock Steering Column . . . . . . . . . . . . . . . . 35
Locking Rear Axle . . . . . . . . . . . . . . 229
Locks Automatic Door . . . . . . . . . . . . . . . . . 25
Delayed Locking . . . . . . . . . . . . . . . . 25
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Lockout Protection . . . . . . . . . . . . . . 26
Power Door . . . . . . . . . . . . . . . . . . . . . 25
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Loss of Control . . . . . . . . . . . . . . . . . 187
Low Fuel Warning Light . . . . . . . . . 142
Low-Profile Tires . . . . . . . . . . . . . . . . 328
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 93
Lumbar Adjustment . . . . . . . . . . . . . . 49 Front Seats . . . . . . . . . . . . . . . . . . . . . 49
M
Magnetic Ride Control . . . . . . . . . . 229
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 391 Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 385
Maintenance Schedule . . . . . . . . . 379 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 388
Transfer Case . . . . . . . . . . . . . . . . 219
Malfunction Indicator Lamp . . . . . 136
Manual Mode . . . . . . . . . . . . . . . . . . . 216
Memory Seats . . . . . . . . . . . . . . . . . . . 51
Messages Engine Power . . . . . . . . . . . . . . . . 151
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 151
Vehicle Speed . . . . . . . . . . . . . . . . 152
Mirror Child-View . . . . . . . . . . . . . . . . . . . . . . 41
Mirrors
Automatic Dimming . . . . . . . . . . . . . 39
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 41
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 39
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 37
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 38
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 39
Manual Rearview . . . . . . . . . . . . . . . 41
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Tilt in Reverse . . . . . . . . . . . . . . . . . . 40
Mirrors, Interior Rearview . . . . . . . . 41

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
Index 429
Rear Axle (cont'd)Locking . . . . . . . . . . . . . . . . . . . . . . . 229
Rear Climate Control System . . . 179
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 55 Heated . . . . . . . . . . . . . . . . . . . . . . . . . 55
Rear Storage . . . . . . . . . . . . . . . . . . . 110
Rear Vision Camera (RVC) . . . . . 242
Rear Window Washer/Wiper . . . . 118
Rearview Mirrors . . . . . . . . . . . . . . . . 41 Automatic Dimming . . . . . . . . . . . . . 41
Reclining Seatbacks . . . . . . . . . . . . . 50
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . 388
Records Maintenance . . . . . . . . . . . . . . . . . . 391
Recreational Vehicle Towing . . . . 364
Reimbursement Program,
GM Mobility . . . . . . . . . . . . . . . . . . . 399
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . 13, 16
Remote Vehicle Start . . . . . . . . . . . . 23
Replacement
Glass . . . . . . . . . . . . . . . . . . . . . . . . . 310
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 86
Maintenance . . . . . . . . . . . . . . . . . . 390 Replacing Airbag System . . . . . . . . 86
Replacing LATCH System
Parts after a Crash . . . . . . . . . . . . 103
Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . 72
Reporting Safety Defects Canadian Government . . . . . . . . 407
General Motors . . . . . . . . . . . . . . . 407
U.S. Government . . . . . . . . . . . . . 406
Restraints Where to Put . . . . . . . . . . . . . . . . . . . 92
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . 209
Reverse Tilt Mirrors . . . . . . . . . . . . . . 40
Ride Control Systems Magnetic . . . . . . . . . . . . . . . . . . . . . 229
Roads Driving, Wet . . . . . . . . . . . . . . . . . . 193
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . . 400
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 44
Roof Rack System . . . . . . . . . . . . . . 112
Rotation, Tires . . . . . . . . . . . . . . . . . . 340
Routing, Engine Drive Belt . . . . . . 395
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 212S
Safety Defects ReportingCanadian Government . . . . . . . . 407
General Motors . . . . . . . . . . . . . . . 407
U.S. Government . . . . . . . . . . . . . 406
Safety Locks . . . . . . . . . . . . . . . . . . . . . 26
Safety System Check . . . . . . . . . . . . 71
Scheduling Appointments . . . . . . . 401
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 62 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Extender . . . . . . . . . . . . . . . . . . . . . . . . 71
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . 63
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . 71
Lap-Shoulder Belt . . . . . . . . . . . . . . 65
Reminders . . . . . . . . . . . . . . . . . . . . 133
Replacing after a Crash . . . . . . . . 72
Use During Pregnancy . . . . . . . . . . 70
Seats
Center Seat . . . . . . . . . . . . . . . . . . . . 48
Head Restraints . . . . . . . . . . . . . . . . 47
Heated and Ventilated Front . . . . 54
Heated, Rear . . . . . . . . . . . . . . . . . . . 55
Lumbar Adjustment, Front . . . . . . 49
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 51
Power Adjustment, Front . . . . . . . 48
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Reclining Seatbacks . . . . . . . . . . . . 50