2017 GMC YUKON XL warning light

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
336 Vehicle Care
alternate tires and wheels allow the
TPMS to continue to function
properly.
SeeTire Pressure Monitor
Operation 0336.
See Radio Frequency
Statement 0401.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire
and wheel assembly. The TPMS
sensors monitor the air pressure in
the tires and transmit the tire
pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light
located on the instrument cluster.
If the warning light comes on, stop
as soon as possible and inflate the
tires to the recommended pressure
shown on the Tire and Loading
Information label. See Vehicle Load
Limits 0212.
A message to check the pressure in
a specific tire displays in the Driver
Information Center (DIC). The low
tire pressure warning light and the
DIC warning message come on at
each ignition cycle until the tires are
inflated to the correct inflation
pressure. If the vehicle has DIC
buttons, tire pressure levels can be
viewed. For additional information
and details about the DIC operation
and displays, see Driver Information
Center (DIC) 0152 andTire
Messages 0167. The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the
air pressure is getting low and
needs to be inflated to the proper
pressure.
A Tire and Loading Information label
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. See
Vehicle Load
Limits 0212, for an example of the
Tire and Loading Information label
and its location. Also see Tire
Pressure 0333.
The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See Tire Inspection
0 339, Tire Rotation 0339 and
Tires 0326.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
Vehicle Care 337
Caution
Tire sealant materials are not all
the same. A non-approved tire
sealant could damage the TPMS
sensors. TPMS sensor damage
caused by using an incorrect tire
sealant is not covered by the
vehicle warranty. Always use only
the GM approved tire sealant
available through your dealer or
included in the vehicle.
TPMS Malfunction Light and
Message
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire pressure warning light
flashes for about one minute and
then stays on for the remainder of
the ignition cycle. A DIC warning
message also displays. The
malfunction light and DIC warning
message come on at each ignitioncycle until the problem is corrected.
Some of the conditions that can
cause these to come on are:
.
One of the road tires has been
replaced with the spare tire. The
spare tire does not have a
TPMS sensor. The malfunction
light and the DIC message
should go off after the road tire
is replaced and the sensor
matching process is performed
successfully. See "TPMS Sensor
Matching Process" later in this
section.
. The TPMS sensor matching
process was not done or not
completed successfully after
rotating the tires. The
malfunction light and the DIC
message should go off after
successfully completing the
sensor matching process. See
"TPMS Sensor Matching
Process" later in this section.
. One or more TPMS sensors are
missing or damaged. The
malfunction light and the DIC
message should go off when the
TPMS sensors are installed and the sensor matching process is
performed successfully. See
your dealer for service.
. Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended
could prevent the TPMS from
functioning properly. See Buying
New Tires 0341.
. Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction.
If the TPMS is not functioning
properly, it cannot detect or signal a
low tire condition. See your dealer
for service if the TPMS malfunction
light and DIC message come on
and stay on.
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. The identification
code needs to be matched to a new
tire/wheel position after rotating the
vehicle’s tires or replacing one or

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
340 Vehicle Care
Check that all wheel nuts are
properly tightened. See“Wheel
Nut Torque” underCapacities
and Specifications 0389.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any
rust or dirt from places where the
wheel attaches to the vehicle. In
an emergency, a cloth or a paper
towel can be used; however, use
a scraper or wire brush later to
remove all rust or dirt.
Lightly coat the center of the
wheel hub with wheel bearing
grease after a wheel change or
tire rotation to prevent corrosion
or rust build-up. Do not get
grease on the flat wheel
mounting surface or on the
wheel nuts or bolts.
When It Is Time for New
Tires
Factors, such as maintenance,
temperatures, driving speeds,
vehicle loading, and road conditions
affect the wear rate of the tires.
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining. Some
commercial truck tires may not have
treadwear indicators. See Tire
Inspection 0339 andTire Rotation
0 339 for additional information. The rubber in tires ages over time.
This also applies to the spare tire,
if the vehicle has one, even if it is
never used. Multiple factors
including temperatures, loading
conditions, and inflation pressure
maintenance affect how fast aging
takes place. GM recommends that
tires, including the spare if
equipped, be replaced after six
years, regardless of tread wear. The
tire manufacture date is the last four
digits of the DOT Tire Identification
Number (TIN) which is molded into
one side of the tire sidewall. The
first two digits represent the week
(01-52) and the last two digits, the
year. For example, the third week of
the year 2010 would have a
four-digit DOT date of 0310.Vehicle Storage
Tires age when stored normally
mounted on a parked vehicle. Park
a vehicle that will be stored for at
least a month in a cool, dry, clean
area away from direct sunlight to
slow aging. This area should be free

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
Vehicle Care 343
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0341 and
Accessories and
Modifications 0285.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration
(NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
one-half (1½) times as well on
the government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the
norm due to variations in driving
habits, service practices and
differences in road
characteristics and climate.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
344 Vehicle Care
Traction
The traction grades, from
highest to lowest, are AA, A, B,
and C. Those grades represent
the tire's ability to stop on wet
pavement as measured under
controlled conditions on
specified government test
surfaces of asphalt and
concrete. A tire marked C may
have poor traction performance.
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction
tests, and does not include
acceleration, cornering,
hydroplaning, or peak traction
characteristics.
Temperature
The temperature grades are A
(the highest), B, and C,
representing the tire's resistance
to the generation of heat and its
ability to dissipate heat when
tested under controlled
conditions on a specified indoorlaboratory test wheel. Sustained
high temperature can cause the
material of the tire to degenerate
and reduce tire life, and
excessive temperature can lead
to sudden tire failure. The grade
C corresponds to a level of
performance which all
passenger car tires must meet
under the Federal Motor Safety
Standard No. 109. Grades B and
A represent higher levels of
performance on the laboratory
test wheel than the minimum
required by law. Warning: The
temperature grade for this tire is
established for a tire that is
properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.Wheel Alignment and Tire
Balance
The tires and wheels were aligned
and balanced at the factory to
provide the longest tire life and best
overall performance. Adjustments to
wheel alignment and tire balancing
are not necessary on a regular
basis. Consider an alignment check
if there is unusual tire wear or the
vehicle is significantly pulling to one
side or the other. Some slight pull to
the left or right, depending on the
crown of the road and/or other road
surface variations such as troughs
or ruts, is normal. If the vehicle is
vibrating when driving on a smooth
road, the tires and wheels may need
to be rebalanced. See your dealer
for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or
corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts, and
wheel nuts should be replaced.
If the wheel leaks air, replace it.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
358 Vehicle Care
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 off the ignition 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
0287.
{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-9955936) - 2017 - crc - 7/5/16
Index 415
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 285
Accessory Power . . . . . . . . . . . . . . . 223
Active Fuel Management
®. . . . . . 226
Adaptive Cruise Control . . . . . . . . 244
Add-On Electrical Equipment . . . 282
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 410
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 381
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . . 216
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 65
Air Cleaner/Filter, Engine . . . . . . . 297
Air Conditioning . . . . . . . . . . . 191, 195
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 197
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 196
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 97
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 90
Passenger Sensing System . . . . 92
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 90 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 91
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 89
Where Are the Airbags? . . . . . . . . 87
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 97
Passenger Status Indicator . . . 142
Readiness Light . . . . . . . . . . . . . . 142
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 96
System Check . . . . . . . . . . . . . . . . . . 86
Alarm Vehicle Security . . . . . . . . . . . . . . . . 50
Alert Lane Change . . . . . . . . . . . . . . . . . 259
Side Blind Zone (SBZA) . . . . . . 259
All-Season Tires . . . . . . . . . . . . . . . . 327
All-Terrain Tires . . . . . . . . . . . . . . . . . 328
Antilock Brake System (ABS) . . . 237 Warning Light . . . . . . . . . . . . . . . . . 146
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 365
Interior . . . . . . . . . . . . . . . . . . . . . . . . 369
Armrest Storage . . . . . . . . . . . . . . . . 121

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
416 Index
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 395
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 255
Assistance Systems for Parking and Backing . . . . . . . . . . 252
Automatic
Dimming Mirrors . . . . . . . . . . . . . . . . 55
Door Locks . . . . . . . . . . . . . . . . . . . . . 43
Forward Braking . . . . . . . . . . . . . . 257
Headlamp System . . . . . . . . . . . . 184
Level Control . . . . . . . . . . . . . . . . . 241
Transmission . . . . . . . . . . . . . . . . . 227
Transmission Fluid . . . . . . 293, 296
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 230
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 310
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 307
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 308
B
Battery Load Management . . . . . . . . . . . . 188
Power Protection . . . . . . . . . . . . . 189
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 158 Battery - North America . . . . 306, 357
Blade Replacement, Wiper . . . . . 311
Blind Spot Mirrors . . . . . . . . . . . . . . . 55
Brake
Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 216
System Warning Light . . . . . . . . 145
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 304 Antilock . . . . . . . . . . . . . . . . . . . . . . . 237
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 238
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Parking . . . . . . . . . . . . . . . . . . . . . . . 237
System Messages . . . . . . . . . . . . 159
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 201 Automatic Forward . . . . . . . . . . . 257
Break-In, New Vehicle . . . . . . . . . . 216
Bulb Replacement . . . . . . . . . . . . . . 315
Back-up Lamps . . . . . . . . . . . . . . . 313
Fog Lamps . . . . . . . . . . . . . . . . . . . 313
Headlamp Aiming . . . . . . . . . . . . . 312
Headlamps . . . . . . . . . . . . . . . . . . . 313
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 313
License Plate Lamps . . . . . . . . . 314
Buying New Tires . . . . . . . . . . . . . . . 341
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 128
California
Fuel Requirements . . . . . . . . . . . 264
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 284
California Proposition
65 Warning . . . . . . . . . .284, 306, 357
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 389
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 226
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 44
Winter Driving . . . . . . . . . . . . . . . . 209
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . 122
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 121
Chains, Tire . . . . . . . . . . . . . . . . . . . . 345
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . 132
Charging System Light . . . . . . . . . 143
Check
Ignition Transmission Lock . . . 310
Malfunction IndicatorEngine Light . . . . . . . . . . . . . . . . 144