2016 GMC YUKON DENALI service indicator

GMC Yukon Denali/Yukon XL Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9159308) - 2016 - crc - 6/2/15
Driving and Operating 253
.White: Ground
. Light Green: Back-up Lamps
. Red/Green: Battery Feed
. Dark Blue: Trailer Brake
If charging a remote (non-vehicle)
battery, press the Tow/Haul mode
button at the end of the shift lever.
This will boost the vehicle system
voltage and properly charge the
battery. If the trailer is too light for
Tow/Haul mode, turn on the
headlamps as a second way to
boost the vehicle system and
charge the battery.
Electric Brake Control Wiring
Provisions
These wiring provisions are
included with the vehicle as part of
the trailer wiring package. These
provisions are for an electric brake
controller.
The harness should be installed by
your dealer or a qualified service
center.
Tow/Haul Mode
Pressing this button at the end of
the shift lever turns on and off the
Tow/Haul Mode.
This indicator light on the instrument
cluster comes on when the Tow/
Haul Mode is on. Tow/Haul is a feature that assists
when pulling a heavy trailer or a
large or heavy load. See
Tow/Haul
Mode 0212.
Tow/Haul is designed to be most
effective when the vehicle and
trailer combined weight is at least
75 percent of the vehicle's Gross
Combined Weight Rating (GCWR).
See “Weight of the Trailer” under
Trailer Towing 0248. Tow/Haul is
most useful under the following
driving conditions:
. When pulling a heavy trailer or a
large or heavy load through
rolling terrain.
. When pulling a heavy trailer or a
large or heavy load in
stop-and-go traffic.
. When pulling a heavy trailer or a
large or heavy load in busy
parking lots where improved low
speed control of the vehicle is
desired.
Operating the vehicle in Tow/Haul
when lightly loaded or with no trailer
at all will not cause damage.
However, there is no benefit to the

GMC Yukon Denali/Yukon XL Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9159308) - 2016 - crc - 6/2/15
Driving and Operating 259
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp (Check Engine Light)
0 129. A device connected to the
Data Link Connector (DLC)—
such as an aftermarket fleet or
driver-behavior tracking device—
may interfere with vehicle
systems. This could affect vehicle
operation and cause a crash.
Such devices may also access
information stored in the vehicle’s
systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
warranty. Always check with your
dealer before adding electrical
equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 084 and Adding Equipment
to the Airbag-Equipped Vehicle
0 84.

GMC Yukon Denali/Yukon XL Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9159308) - 2016 - crc - 6/2/15
Vehicle Care 273
1. Remove the coolant surge tankpressure cap when the cooling
system, including the coolant
surge tank pressure cap and
upper radiator hose, is no
longer hot.
Turn the pressure cap slowly
counterclockwise about one full
turn. If a hiss is heard, wait for
that to stop. A hiss means
there is still some pressure left.
2. Keep turning the pressure cap slowly, and remove it.
3. Fill the coolant surge tank with the proper mixture to the FULL
COLD mark.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until the
engine coolant temperature
gauge indicates approximately
90 °C (195 °F). By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
mixture to the coolant surge
tank until the level reaches the
FULL COLD mark.
5. Replace the pressure cap tightly.
6. Verify coolant level after the engine is shut off and the
coolant is cold. If necessary,
repeat coolant fill procedure
Steps 1-6.
Caution
If the pressure cap is not tightly
installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.
The vehicle has several indicators
to warn of engine overheating.
There is a coolant temperature
gauge in the vehicle's instrument
cluster. See Engine Coolant
Temperature Gauge 0124.
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
0 146 andEngine Power Messages
0 147.
If the decision is made not to lift the
hood when this warning appears,
get service help right away.

GMC Yukon Denali/Yukon XL Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9159308) - 2016 - crc - 6/2/15
276 Vehicle Care
Caution (Continued)
.Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of the
washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank
only three-quarters full when
it is very cold. This allows
for fluid expansion if
freezing occurs, which could
damage the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or be heard all the time when the vehicle
is moving, except when applying the
brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
a crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and evenly tighten wheel nuts in the
proper sequence to torque
specifications. See
Capacities and
Specifications 0358.
Brake pads should be replaced as
complete sets.
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service may be required.
Replacing Brake System Parts
Always replace brake system parts
with new, approved replacement
parts. If this is not done, the brakes
may not work properly. The braking
performance expected can change
in many other ways if the wrong
replacement brake parts are
installed or parts are improperly
installed.

GMC Yukon Denali/Yukon XL Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9159308) - 2016 - crc - 6/2/15
352 Service and Maintenance
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
of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire. .
Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see Interior Care 0339 and
Exterior Care 0334.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
. Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
. Your dealer has the required
equipment to ensure proper
wheel alignment. Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
.
Signs of damage include
scratches, cracks, and chips.
. Trained dealer technicians can
inspect the windshield and
recommend proper replacement
if needed.
Wiper Blades
Wiper blades need to be cleaned
and kept in good condition to
provide a clear view.
. Signs of wear include streaking,
skipping across the windshield,
and worn or split rubber.
. Trained dealer technicians can
check the wiper blades and
replace them when needed.

GMC Yukon Denali/Yukon XL Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9159308) - 2016 - crc - 6/2/15
388 Index
Fuel (cont'd)Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 245
Filling the Tank . . . . . . . . . . . . . . . 244
Foreign Countries . . . . . . . . . . . . 243
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 122
Low Fuel Warning Light . . . . . . . 135
Management, Active . . . . . . . . . . 205
Requirements, California . . . . . 243
System Messages . . . . . . . . . . . . 147
Full-Size Spare Tire . . . . . . . . . . . . 325
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 287 Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 288
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 291, 294
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 296
G
Garage Door Opener . . . . . . . . . . . 162
Programming . . . . . . . . . . . . . . . . . 162
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . 124
Engine Oil Pressure . . . . . . . . . . 123
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Odometer . . . . . . . . . . . . . . . . . . . . . 122
Speedometer . . . . . . . . . . . . . . . . . 122 Gauges (cont'd)
Tachometer . . . . . . . . . . . . . . . . . . . 122
Transmission Temperature . . . . 125
Trip Odometer . . . . . . . . . . . . . . . . 122
Voltmeter . . . . . . . . . . . . . . . . . . . . . 125
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . .119
General Information Service and Maintenance . . . . . 343
Towing . . . . . . . . . . . . . . . . . . . . . . . . 246
Vehicle Care . . . . . . . . . . . . . . . . . . 261
Glass Replacement . . . . . . . . . . . . . 283
Glove Box . . . . . . . . . . . . . . . . . . . . . . 106
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 364
H
Hazard Warning Flashers . . . . . . . 168
Head Restraints . . . . . . . . . . . . . . . . . 52
Head-up Display . . . . . . . . . . . . . . . . 140
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 284
Automatic . . . . . . . . . . . . . . . . . . . . . 167
Bulb Replacement . . . . . . . . . . . . 284
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 166
Flash-to-Pass . . . . . . . . . . . . . . . . . 166
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 284 Headlamps (cont'd)
High-Beam On Light . . . . . . . . . . 135
High/Low Beam Changer . . . . . 166
Lamps On Reminder . . . . . . . . . 136
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 58
Steering Wheel . . . . . . . . . . . . . . . . 111
Heated and Cooled Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Heated Mirrors . . . . . . . . . . . . . . . . . . . 45
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 202
High-Beam On Light . . . . . . . . . . . . 135
High-Speed Operation . . . . . . . . . . 305
Hill and Mountain Roads . . . . . . . . 191
Hill Start Assist (HSA) . . . . . . . . . . 218
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 66
I
Ignition Positions . . . . . . . . . . . . . . . 199
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 43
IndicatorVehicle Ahead . . . . . . . . . . . . . . . . 132
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 87
Infotainment . . . . . . . . . . . . . . . . . . . . 173

GMC Yukon Denali/Yukon XL Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9159308) - 2016 - crc - 6/2/15
Index 391
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 373
OnStar®Additional
Information . . . . . . . . . . . . . . . . . . . . 378
OnStar
®Connections . . . . . . . . . . . 376
OnStar®Diagnostics . . . . . . . . . . . . 378
OnStar®Emergency . . . . . . . . . . . . 375
OnStar®Navigation . . . . . . . . . . . . . 375
OnStar®Overview . . . . . . . . . . . . . . 374
OnStar®Security . . . . . . . . . . . . . . . 375
Ordering Service Publications . . . . . . . . . . 369
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . .116
Overheating, Engine . . . . . . . . . . . . 273
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 203
Shifting Out of . . . . . . . . . . . . . . . . 204
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 217
Brake and P (Park)
Mechanism Check . . . . . . . . . . 282
Over Things That Burn . . . . . . . 205
Parking or Backing Assistance Systems . . . . . . . . . . 231
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 127 Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Passenger Sensing System . . . . . 80
Perchlorate Materials Requirements, California . . . . . . 261
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 155
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 34
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Outlets . . . . . . . . . . . . . . . . . . . . . . . .116
Protection, Battery . . . . . . . . . . . . 172
Retained Accessory (RAP) . . . 203
Seat Adjustment . . . . . . . . . . . . . . . . 53
Windows . . . . . . . . . . . . . . . . . . . . . . . 47
Power Assist Steps . . . . . . . . . . . . . . 40
Pregnancy, Using Safety Belts . . . 71
Privacy
Vehicle Data Recording . . . . . . . 372
Program Courtesy Transportation . . . . . . 366
Proposition 65 Warning,
California . . . . . . . . . . . .261, 278, 326
R
Radio Frequency Statement . . . . 370
Reading Lamps . . . . . . . . . . . . . . . . . 170
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 280Locking . . . . . . . . . . . . . . . . . . . . . . . 220
Rear Climate Control System . . . 178
Rear Seats Heated . . . . . . . . . . . . . . . . . . . . . . . . . 58
Rear Storage . . . . . . . . . . . . . . . . . . . 107
Rear Window Washer/Wiper . . . . 114
Rearview Mirrors Automatic Dimming . . . . . . . . . . . . . 46
Reclining Seatbacks . . . . . . . . . . . . . 54
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . 353
Records Maintenance . . . . . . . . . . . . . . . . . . 356
Recreational Vehicle Towing . . . . 330
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . 364
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . 26, 27
Remote Vehicle Start . . . . . . . . . . . . 33
Replacement Glass . . . . . . . . . . . . . . . . . . . . . . . . . 283
Replacement Bulbs . . . . . . . . . . . . . 287
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 85