
GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S/Canada-
9159297) - 2016 - CRC - 10/12/15
290 Vehicle Care
The vehicle has several indicators
to warn of engine overheating.
There is a coolant temperature
gauge in the vehicle's instrument
cluster. SeeEngine Coolant
Temperature Gauge 0138.
In addition, there are ENGINE
OVERHEATED STOP ENGINE,
ENGINE OVERHEATED IDLE
ENGINE, and ENGINE POWER IS
REDUCED messages in the Driver
Information Center (DIC). See
Engine Cooling System Messages
0 154 andEngine Power
Messages 0155.
If the decision is made not to lift the
hood when this warning appears,
get service help right away.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Check to see if the engine cooling
fan(s) are running. If the engine is
overheating, the fans should be
running. If they are not, do not
continue to run the engine, and
have the vehicle serviced.If Steam is Coming from the
Engine Compartment
{Warning
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you open
the hood.
If you keep driving when the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is cool.
If No Steam is Coming from
the Engine Compartment
The ENGINE OVERHEATED STOP
ENGINE or the ENGINE
OVERHEATED IDLE ENGINE message, along with a low coolant
condition, can indicate a serious
problem.
If there is an engine overheat
warning, but no steam is seen or
heard, the problem may not be too
serious. Sometimes the engine can
get a little too hot when the vehicle:
.
Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer; see Trailer
Towing 0262.
If the ENGINE OVERHEATED
STOP ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message appears with no sign of
steam, try this for a minute or so: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.

GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S/Canada-
9159297) - 2016 - CRC - 10/12/15
310 Vehicle Care
ItemUsage
18 Mirror window module
19 Body control module 1
20 Front bolster (if equipped)
21 –
22 –
23 –
24 HVAC/Ignition
25 Instrument cluster/ Ignition sensing
diagnostic module/
Ignition
26 Tilt column/SEO/Tilt column lock 1/SEO
27 Data link connector/ Driver seat module
28 Passive entry/Passive start/HVAC battery
29 Content theft deterrent
30 –
31 –
32 – Item
Usage
33 SEO/Automatic level control
34 Park enable/Electric adjustable pedal (if
equipped)
35 –
36 Miscellaneous/RC
37 Heated steering wheel
38 Steering column lock 2 (if equipped)
39 Instrument cluster battery
40 –
41 –
42 Euro trailer (if equipped)
43 Left doors
44 Driver power seat
45 –
46 Right heated, cooled or ventilated seat (if
equipped) Item
Usage
47 Left heated, cooled or ventilated seat (if
equipped)
48 –
49 –
50 Accessory power outlet 2
51 –
52 Retained accessory power relay
53 Run/Crank relay
54 –
55 –
56 –

GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S/Canada-
9159297) - 2016 - CRC - 10/12/15
324 Vehicle Care
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 pressureshown on the Tire and Loading
Information label. See
Vehicle Load
Limits 0205.
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) 0149 andTire
Messages 0160.
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 0205, for an example of the
Tire and Loading Information label
and its location. Also see Tire
Pressure 0321.
The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See Tire Inspection
0 327, Tire Rotation 0327 and
Tires 0314.
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.

GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S/Canada-
9159297) - 2016 - CRC - 10/12/15
358 Vehicle Care
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, steel
fuel door hinge and power assist
step hinges, unless the components
are plastic. Applying silicone grease
on weatherstrips with a clean cloth
will make them last longer, seal
better, and not stick or squeak.
Underbody Maintenance
At least twice a year, spring and fall,
use plain water to flush any
corrosive materials from the
underbody. Take care to thoroughly
clean any areas where mud and
other debris can collect. If equipped
with power assist steps, extend
them and then use a high pressure
wash to clean all joints and gaps.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage
Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon
and attack painted vehicle surfaces
causing blotchy, ring-shaped
discolorations, and small, irregular
dark spots etched into the paint
surface. See“Finish Care”
previously in this section.
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils.
Newspapers or dark garments can
transfer color to the vehicle’s
interior.
Use a soft bristle brush to remove
dust from knobs and crevices on the
instrument cluster. Using a mild
soap solution, immediately remove
hand lotions, sunscreen, and insect
repellent from all interior surfaces or
permanent damage may result.
Use cleaners specifically designed
for the surfaces being cleaned to
prevent permanent damage. Apply
all cleaners directly to the cleaning
cloth. Do not spray cleaners on any
switches or controls. Remove
cleaners quickly.
Before using cleaners, read and
follow all safety instructions on the
label. While cleaning the interior,
open the doors and windows to get
proper ventilation.

GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S/Canada-
9159297) - 2016 - CRC - 10/12/15
Service and Maintenance 371
.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 0373 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. Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.
Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs

GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S/Canada-
9159297) - 2016 - CRC - 10/12/15
406 Index
Check (cont'd)Malfunction Indicator
Engine Light . . . . . . . . . . . . . . . . 142
Child Restraints
Infants and Young Children . . . 100
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . 105
Older Children . . . . . . . . . . . . . . . . . . 98
Securing . . . . . . . . . . . . .113, 114, 116
Systems . . . . . . . . . . . . . . . . . . . . . . 102
Child-View Mirror . . . . . . . . . . . . . . . . 56
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 354
Interior Care . . . . . . . . . . . . . . . . . . 358
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 184
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Cluster, Instrument . . . . . . . . . . . . . 134
Collision Damage Repair . . . . . . . 387
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . .119
Compass . . . . . . . . . . . . . . . . . . . . . . . 128
Messages . . . . . . . . . . . . . . . . . . . . 153
Connections OnStar
®. . . . . . . . . . . . . . . . . . . . . . 396 Control
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 232
Control of a Vehicle . . . . . . . . . . . . . 194
Convex Mirrors . . . . . . . . . . . . . . . . . . 53
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . . . 287
Engine Temperature Gauge . . 138
Cooling System . . . . . . . . . . . . . . . . . 286 Engine Messages . . . . . . . . . . . . 154
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 386
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 121
Cruise Control . . . . . . . . . . . . . . . . . . 235 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Messages . . . . . . . . . . . . . . . . . . . . 153
Cruise Control, Adaptive . . . . . . . . 238
Cupholders . . . . . . . . . . . . . . . . . . . . . 119
Customer Assistance . . . . . . . . . . . 382 Offices . . . . . . . . . . . . . . . . . . . . . . . . 382
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 382
Customer Information Service Publications
Ordering Information . . . . . . . . 389
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 380
D
Damage Repair, Collision . . . . . . . 387
Danger, Warning, and Caution . . . . 2
Data Recorders, Event . . . . . . . . . 392
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . 176
Defensive Driving . . . . . . . . . . . . . . . 194
Delayed Locking . . . . . . . . . . . . . . . . . 43
Diagnostics OnStar
®. . . . . . . . . . . . . . . . . . . . . . 398
Distracted Driving . . . . . . . . . . . . . . . 193
Dome Lamps . . . . . . . . . . . . . . . . . . . 180
Door Ajar Messages . . . . . . . . . . . . . . . 154
Delayed Locking . . . . . . . . . . . . . . . . 43
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Locks . . . . . . . . . . . . . . . . . . . . 42
Drive Belt Routing, Engine . . . . . . 379
Driver Assistance Systems . . . . . 244
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 149
Driving Assistance Systems . . . . . . . . . . 248
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 260
Defensive . . . . . . . . . . . . . . . . . . . . . 194
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 194
For Better Fuel Economy . . . . . . . 26

GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S/Canada-
9159297) - 2016 - CRC - 10/12/15
Index 409
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . 78
I
Ignition Positions . . . . . . . . . . 210, 212
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . . . 298
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 51
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 146
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . 100
Infotainment . . . . . . . . . . . . . . . . . . . . 183
Infotainment System . . . . . . . . . . . . 393
Instrument Cluster . . . . . . . . . . . . . . 134
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . .119
Interior Rearview Mirrors . . . . . . . . . 56
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 345
K
Key and Lock Messages . . . . . . . . 156
Keyless EntryRemote (RKE) System . . . . . 32, 34
Keys . . . . . . . . . . . . . . . . . . . . . . . . . 28, 31
L
Labeling, Tire Sidewall . . . . . . . . . . 316
Lamps
Daytime Running (DRL) . . . . . . 176
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 180
Exterior Controls . . . . . . . . . . . . . . 174
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 176
License Plate . . . . . . . . . . . . . . . . . 303
Malfunction Indicator . . . . . . . . . 142
Messages . . . . . . . . . . . . . . . . . . . . 156
On Reminder . . . . . . . . . . . . . . . . . 148
Reading . . . . . . . . . . . . . . . . . . . . . . 180
Lane Change Alert (LCA) . . . . . . . 252
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . 253
Lane Keep Assist (LKA) . . . . . . . . 254
Lane Keep Assist Light . . . . . . . . . 145
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 84
Lap-Shoulder Belt . . . . . . . . . . . . . . . 79
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . .113 LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . 105
LED Lighting . . . . . . . . . . . . . . . . . . . . 301
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . 235
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 181
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Illumination Control . . . . . . . . . . . 179
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 Airbag Readiness . . . . . . . . . . . . . 140
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 145
Brake System Warning . . . . . . . 144
Charging System . . . . . . . . . . . . . 142
Cruise Control . . . . . . . . . . . . . . . . 148
Flash-to-Pass . . . . . . . . . . . . . . . . . 176
Front Fog Lamp . . . . . . . . . . . . . . 148
High-Beam On . . . . . . . . . . . . . . . . 148
High/Low Beam Changer . . . . . 176
Low Fuel Warning . . . . . . . . . . . . 147
Safety Belt Reminders . . . . . . . . 140
Security . . . . . . . . . . . . . . . . . . . . . . 147
StabiliTrak
®OFF . . . . . . . . . . . . . 146
Tire Pressure . . . . . . . . . . . . . . . . . 147
Tow/Haul Mode . . . . . . . . . . . . . . . 145