2017 GMC YUKON warning lights

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
Driving and Operating 235
Drive Systems
Four-Wheel Drive
If equipped, four-wheel drive
engages the front axle for extra
traction.
Caution
Do not drive on clean, dry
pavement in 4
mand 4n(if
equipped) for an extended period
of time. These conditions may
cause premature wear on the
vehicle’s powertrain.
Driving on clean, dry pavement in
4HI or 4LO may:
. Cause a vibration to be felt in
the steering system.
. Cause tires to wear faster.
. Make the transfer case harder to
shift, and cause it to run noisier.
{Warning
Shifting the transfer case to
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). You or someone else
could be seriously injured. Be
sure to set the parking brake
before placing the transfer case in
N (Neutral). See Parking Brake
0 239.
Caution
Extended high-speed operation in
4
nmay damage or shorten the
life of the drivetrain.
Engagement noise and bump when
shifting between 4
nand 4mor from
N (Neutral), with the engine running,
is normal.
Shifting into 4
nwill turn Traction
Control and StabiliTrak®off. See
Traction Control/Electronic Stability
Control 0241.
Automatic Transfer Case
If equipped, use the transfer case
knob next to the steering wheel to
shift into and out of four-wheel drive.
All of the lights will blink on then off
momentarily when the ignition is
moved to the ON/RUN position. The
light that remains on will indicate the
state of the Transfer Case.
If the indicator mark on the switch
does not match up with the light
then that likely means the switch
was moved when the ignition
was off.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
250 Driving and Operating
Alerting the Driver
Without Head-Up Display
With Head-Up Display
If ACC is engaged, driver action
may be required when ACC cannot
apply sufficient braking because of
approaching a vehicle too rapidly.
When this condition occurs, six red
lights or the collision alert symbol on
the HUD, if equipped, will flash on
the windshield, and either eight
beeps will sound from the front,
or both sides of the Safety Alert
Seat will pulse five times. See
“Collision/Detection Systems” under
Vehicle Personalization 0171. See
Defensive Driving 0202.
Approaching and Following a
Vehicle
The vehicle ahead indicator is in the
instrument cluster and HUD,
if equipped.
The vehicle ahead indicator only
displays when a vehicle is detected
in your vehicle’s path moving in the
same direction.
If this indicator is not displaying,
ACC will not respond to or brake to
vehicles ahead.
ACC automatically slows the vehicle
down and adjusts vehicle speed to
follow the vehicle in front at the
selected follow gap. The vehicle
speed increases or decreases to
follow the vehicle in front of you, but
will not exceed the set speed. It may
apply limited braking, if necessary. When braking is active, the brake
lights will come on. The automatic
braking may feel or sound different
than if the brakes were applied
manually. This is normal.
Stationary or Very Slow-Moving
Objects
{Warning
ACC may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system may not brake for a
vehicle it has never detected
moving. This can occur in
stop-and-go traffic or when a
vehicle suddenly appears due to
a vehicle ahead changing lanes.
Your vehicle may not stop and
could cause a crash. Use caution
when using ACC. Your complete
attention is always required while
driving and you should be ready
to take action and apply the
brakes.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
Driving and Operating 257
Forward Collision Alert
(FCA) System
If equipped, the FCA system may
help to avoid or reduce the harm
caused by front-end crashes. When
approaching a vehicle ahead too
quickly, FCA provides a red flashing
alert on the windshield and rapidly
beeps or pulses the driver seat.
FCA also lights an amber visual
alert if following another vehicle
much too closely.
FCA detects vehicles within a
distance of approximately 60 m
(197 ft) and operates at speeds
above 40 km/h (25 mph). If the
vehicle has Adaptive Cruise Control
(ACC), it can detect vehicles to
distances of approximately 110 m
(360 ft) and operates at all speeds.
SeeAdaptive Cruise Control 0246.
{Warning
FCA is a warning system and
does not apply the brakes. When
approaching a slower-moving or
(Continued)
Warning (Continued)
stopped vehicle ahead too rapidly,
or when following a vehicle too
closely, FCA may not provide a
warning with enough time to help
avoid a crash. It also may not
provide any warning at all. FCA
does not warn of pedestrians,
animals, signs, guardrails,
bridges, construction barrels,
or other objects. Be ready to take
action and apply the brakes. See
Defensive Driving0202.
FCA can be disabled with either the
FCA steering wheel control or,
if equipped, through vehicle
personalization. See “Collision/
Detection Systems” underVehicle
Personalization 0171.
Detecting the Vehicle Ahead
FCA warnings will not occur unless
the FCA system detects a vehicle
ahead. When a vehicle is detected,
the vehicle ahead indicator will
display green. Vehicles may not be
detected on curves, highway exit
ramps, or hills, due to poor visibility;
or if a vehicle ahead is partially
blocked by pedestrians or other
objects. FCA will not detect another
vehicle ahead until it is completely
in the driving lane.
{Warning
FCA does not provide a warning
to help avoid a crash, unless it
detects a vehicle. FCA may not
detect a vehicle ahead if the FCA
sensor is blocked by dirt, snow,
(Continued)

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
262 Driving and Operating
How the System Works
The LCA symbol lights up in the
side mirrors when the system
detects a moving vehicle in the next
lane over that is in the side blind
zone or rapidly approaching that
zone from behind. A lit LCA symbol
indicates it may be unsafe to
change lanes. Before making a lane
change, check the LCA display,
check mirrors, glance over your
shoulder, and use the turn signals.
Left Side MirrorDisplayRight Side Mirror Display
When the vehicle is started, both
outside mirror LCA displays will
briefly come on to indicate the
system is operating. When the
vehicle is in a forward gear, the left
or right side mirror display will light
up if a moving vehicle is detected in
the next lane over in that blind zone
or rapidly approaching that zone. If the turn signal is activated in the
same direction as a detected
vehicle, this display will flash as an
extra warning not to change lanes.
LCA can be disabled through
vehicle personalization using the
Side Blind Zone Alert option. See
“Collision/Detection Systems”
under
Vehicle Personalization 0171.
If LCA is disabled by the driver, the
LCA mirror displays will not light up.
When the System Does Not
Seem to Work Properly
The LCA system requires some
driving for the system to calibrate to
maximum performance. This
calibration may occur more quickly if
the vehicle is driving on a straight
highway road with traffic and
roadside objects (e.g., guardrails,
barriers).
LCA displays may not come on
when passing a vehicle quickly, for
a stopped vehicle, or when towing a
trailer. The LCA detection zones
that extend back from the side of
the vehicle do not move further back
when a trailer is towed. Use caution
while changing lanes when towing a trailer. LCA may alert to objects
attached to the vehicle, such as a
trailer, bicycle, or object extending
out to either side of the vehicle.
Attached objects may also interfere
with the detection of vehicles. This
is normal system operation; the
vehicle does not need service.
LCA may not always alert the driver
to vehicles in the next lane over,
especially in wet conditions or when
driving on sharp curves. The system
does not need to be serviced. The
system may light up due to
guardrails, signs, trees, shrubs, and
other non-moving objects. This is
normal system operation; the
vehicle does not need service.
LCA may not operate when the LCA
sensors in the left or right corners of
the rear bumper are covered with
mud, dirt, snow, ice, or slush, or in
heavy rainstorms. For cleaning
instructions, see "Washing the
Vehicle" under
Exterior Care0366.
If the DIC still displays the system
unavailable message after cleaning
both sides of the vehicle toward the
rear corners of the vehicle, see your
dealer.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
Index 421
FluidAutomatic
Transmission . . . . . . . . . . . 294, 297
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 306
Four-Wheel Drive Transfer Case . . . . . . . . . . . . . . . 235
Washer . . . . . . . . . . . . . . . . . . . . . . . 304
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 187 Bulb Replacement . . . . . . . . . . . . 314
Folding Mirrors . . . . . . . . . . . . . . . . . . 55
Forward Automatic Braking . . . . . 259
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 257
Four-Wheel Drive . . . . . . . . . . 235, 307
Four-Wheel-Drive Light . . . . . . . . . 148
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 403
Front Axle . . . . . . . . . . . . . . . . . . . . . . 308
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Front Seats
Heated and Ventilated . . . . . . . . . . 69
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 Additives . . . . . . . . . . . . . . . . . . . . . 266
Economy Driving . . . . . . . . . . . . . . . 26
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 269
Filling the Tank . . . . . . . . . . . . . . . 267 Fuel (cont'd)
Foreign Countries . . . . . . . . . . . . 266
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 138
Low Fuel Warning Light . . . . . . . 151
Management, Active . . . . . . . . . . 227
Requirements, California . . . . . 266
System Messages . . . . . . . . . . . . 163
Full-Size Spare Tire . . . . . . . . . . . . 357
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 317 Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 317
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 321, 324
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 326
G
Garage Door Opener . . . . . . . . . . . 179Programming . . . . . . . . . . . . . . . . . 179
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 140
Engine Oil Pressure . . . . . . . . . . 139
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Odometer . . . . . . . . . . . . . . . . . . . . . 138
Speedometer . . . . . . . . . . . . . . . . . 138
Tachometer . . . . . . . . . . . . . . . . . . . 138
Transmission Temperature . . . . 141
Trip Odometer . . . . . . . . . . . . . . . . 138 Gauges (cont'd)
Voltmeter . . . . . . . . . . . . . . . . . . . . . 141
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 134
General Information Service and Maintenance . . . . . 375
Towing . . . . . . . . . . . . . . . . . . . . . . . . 269
Vehicle Care . . . . . . . . . . . . . . . . . . 285
Glass Replacement . . . . . . . . . . . . . 313
Glove Box . . . . . . . . . . . . . . . . . . . . . . 121
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 397
H
Hazard Warning Flashers . . . . . . . 186
Head Restraints . . . . . . . . . . . . . . . . . 63
Head-up Display . . . . . . . . . . . . . . . . 156
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 313
Automatic . . . . . . . . . . . . . . . . . . . . . 185
Bulb Replacement . . . . . . . . . . . . 314
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 185
Flash-to-Pass . . . . . . . . . . . . . . . . . 184
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 314
High-Beam On Light . . . . . . . . . . 152
High/Low Beam Changer . . . . . 184
Lamps On Reminder . . . . . . . . . 152

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
422 Index
HeatedRear Seats . . . . . . . . . . . . . . . . . . . . . 71
Steering Wheel . . . . . . . . . . . . . . . 126
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Heated Mirrors . . . . . . . . . . . . . . . . . . . 55
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 223
Heating . . . . . . . . . . . . . . . . . . . . 192, 196
High-Beam On Light . . . . . . . . . . . . 152
High-Speed Operation . . . . . . . . . . 335
Hill and Mountain Roads . . . . . . . . 210
Hill Start Assist (HSA) . . . . . . . . . . 240
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 79
HVAC . . . . . . . . . . . . . . . . . . . . . . 192, 196
I
Ignition Positions . . . . . . . . . . 218, 220
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 311
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 52
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 148
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . 101
Infotainment . . . . . . . . . . . . . . . . . . . . 191 Infotainment System . . . . . . . . . . . . 406
Instrument Cluster . . . . . . . . . . . . . . 135
Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . 121
Interior Rearview Mirrors . . . . . . . . . 57
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 358
K
Key and Lock Messages . . . . . . . . 164
Keyless EntryRemote (RKE) System . . . . . 32, 34
Keys . . . . . . . . . . . . . . . . . . . . . . . . . 28, 31
L
Labeling, Tire Sidewall . . . . . . . . . . 329
Lamps Daytime Running (DRL) . . . . . . 185
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 188
Exterior Controls . . . . . . . . . . . . . . 182
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 184
License Plate . . . . . . . . . . . . . . . . . 315
Malfunction Indicator . . . . . . . . . 145
Messages . . . . . . . . . . . . . . . . . . . . 164
On Reminder . . . . . . . . . . . . . . . . . 152 Lamps (cont'd)
Reading . . . . . . . . . . . . . . . . . . . . . . 188
Lane Change Alert (LCA) . . . . . . . 261
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 263
Lane Keep Assist (LKA) . . . . . . . . 263
Lane Keep Assist Light . . . . . . . . . 148
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 85
Lap-Shoulder Belt . . . . . . . . . . . . . . . 80
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . .114
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . 106
LED Lighting . . . . . . . . . . . . . . . . . . . . 314
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . 243
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 189
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Illumination Control . . . . . . . . . . . 187
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Airbag Readiness . . . . . . . . . . . . . 143
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 147
Brake System Warning . . . . . . . 147

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
Index 423
Lights (cont'd)Charging System . . . . . . . . . . . . . 144
Cruise Control . . . . . . . . . . . . . . . . 152
Door Ajar . . . . . . . . . . . . . . . . . . . . . 153
Engine Coolant
Temperature Warning . . . . . . . 150
Engine Oil Pressure . . . . . . . . . . 151
Flash-to-Pass . . . . . . . . . . . . . . . . . 184
Four-Wheel-Drive . . . . . . . . . . . . . 148
Front Fog Lamp . . . . . . . . . . . . . . 152
High-Beam On . . . . . . . . . . . . . . . . 152
High/Low Beam Changer . . . . . 184
Low Fuel Warning . . . . . . . . . . . . 151
Safety Belt Reminders . . . . . . . . 142
Security . . . . . . . . . . . . . . . . . . . . . . 151
StabiliTrak
®OFF . . . . . . . . . . . . . 149
Tire Pressure . . . . . . . . . . . . . . . . . 150
Tow/Haul Mode . . . . . . . . . . . . . . . 148
Traction Control System (TCS)/StabiliTrak
®. . . . . . . . . . 149
Traction Off . . . . . . . . . . . . . . . . . . . 149
Locking Rear Axle . . . . . . . . . . . . . . 243
Locks Automatic Door . . . . . . . . . . . . . . . . . 43
Delayed Locking . . . . . . . . . . . . . . . . 43
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Lockout Protection . . . . . . . . . . . . . . 43
Power Door . . . . . . . . . . . . . . . . . . . . . 43 Locks (cont'd)
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Loss of Control . . . . . . . . . . . . . . . . . 204
Low Fuel Warning Light . . . . . . . . . 151
Low-Profile Tires . . . . . . . . . . . . . . . . 329
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 106
Lumbar Adjustment . . . . . . . . . . . . . . 65
Front Seats . . . . . . . . . . . . . . . . . . . . . 65
M
Magnetic Ride Control . . . . . . . . . . 243
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 389
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 383
Maintenance Schedule . . . . . . . . . 376 Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . 386
Transfer Case . . . . . . . . . . . . . . . . 235
Malfunction Indicator Lamp . . . . . 145
Manual Mode . . . . . . . . . . . . . . . . . . . 231
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 66
Messages Airbag System . . . . . . . . . . . . . . . . 167
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 160 Messages (cont'd)
Brake System . . . . . . . . . . . . . . . . 160
Compass . . . . . . . . . . . . . . . . . . . . . 161
Door Ajar . . . . . . . . . . . . . . . . . . . . . 162
Engine Cooling System . . . . . . . 162
Engine Oil . . . . . . . . . . . . . . . . . . . . 163
Engine Power . . . . . . . . . . . . . . . . 163
Fuel System . . . . . . . . . . . . . . . . . . 163
Key and Lock . . . . . . . . . . . . . . . . . 164
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 164
Object Detection System . . . . . 164
Ride Control System . . . . . . . . . . 166
Security . . . . . . . . . . . . . . . . . . . . . . 167
Starting the Vehicle . . . . . . . . . . . 168
Steering System . . . . . . . . . . . . . . 168
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Transmission . . . . . . . . . . . . . . . . . 169
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 159
Vehicle Reminder . . . . . . . . . . . . . 170
Washer Fluid . . . . . . . . . . . . . . . . . 171
Mirror Child-View . . . . . . . . . . . . . . . . . . . . . . 57
Mirrors
Automatic Dimming . . . . . . . . . . . . . 55
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 57
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 55
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 54

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
428 Index
V
VehicleAlarm System . . . . . . . . . . . . . . . . . . 50
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 202
Identification Number (VIN) . . . 390
Load Limits . . . . . . . . . . . . . . . . . . . 213
Messages . . . . . . . . . . . . . . . . . . . . 159
Personalization . . . . . . . . . . . . . . . 171
Reminder Messages . . . . . . . . . . 170
Remote Start . . . . . . . . . . . . . . . . . . . 41
Security . . . . . . . . . . . . . . . . . . . . . . . . 50
Towing . . . . . . . . . . . . . . . . . . . . . . . . 361
Vehicle Ahead Indicator . . . . . . . . 148
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . 334
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 404
Ventilation, Air . . . . . . . . . . . . . . . . . . 197
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Voltmeter Gauge . . . . . . . . . . . . . . . 141
W
Warning
Brake System Light . . . . . . . . . . . 147
Caution and Danger . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . 263
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 134 Warnings
Hazard Flashers . . . . . . . . . . . . . . 186
Washer Fluid . . . . . . . . . . . . . . . . . . . 304 Messages . . . . . . . . . . . . . . . . . . . . 171
Wheels Alignment and Tire Balance . . 345
Different Size . . . . . . . . . . . . . . . . . 343
Replacement . . . . . . . . . . . . . . . . . 345
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Where to Put the Restraint . . . . . 105
Wi-Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Windows . . . . . . . . . . . . . . . . . . . . . . . . 57
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Windshield Replacement . . . . . . . . . . . . . . . . . 313
Wiper/Washer . . . . . . . . . . . . . . . . 127
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 210
Winter Tires . . . . . . . . . . . . . . . . . . . . 328
Wiper Blade Replacement . . . . . . 312
Wipers Rear Washer . . . . . . . . . . . . . . . . . 129
Wireless Charging . . . . . . . . . . . . . . 133