lights GMC YUKON XL 2018 Owner's Manual

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
246 Driving and Operating parking assist on again, select On in
vehicle personalization. The On with
Towbar setting allows for the
parking assist to work properly with
an attached trailer hitch. Turn off
parking assist when towing a trailer.
To turn the rear parking assist
symbols, guidance lines, or Rear
Cross Traffic Alert on or off, see
“ Rear Camera ” and “ Collision/
Detection Systems ” under Vehicle
Personalization 0 158 .
Assistance Systems for
Driving If equipped, when driving the
vehicle in a forward gear, Forward
Collision Alert (FCA), Lane
Departure Warning (LDW), Lane
Keep Assist (LKA), Side Blind Zone
Alert (SBZA), Lane Change Alert
(LCA), and/or Forward Automatic
Braking (FAB) can help to avoid a
crash or reduce crash damage. 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 8 km/h (5 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. See
Adaptive Cruise Control 0 235 .
{ 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 Driving 0 190 .
FCA can be disabled with either the
FCA steering wheel control or,
if equipped, through vehicle
personalization. See “ Collision/
Detection Systems ” under Vehicle
Personalization 0 158 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
Driving and Operating 251LCA Detection Zones
1. SBZA Detection Zone
2. LCA Detection Zone
The LCA sensor covers a zone of
approximately one lane over from
both sides of the vehicle, or 3.5 m
(11 ft). The height of the zone is
approximately between 0.5 m (1.5 ft)
and 2 m (6 ft) off the ground. The
Side Blind Zone Alert (SBZA)
warning area starts at approximately
the middle of the vehicle and goes
back 5 m (16 ft). Drivers are also
warned of vehicles rapidly
approaching from up to 70 m (230 ft)
behind the vehicle. 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 Mirror
Display Right 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 0 158 .
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

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Service and Maintenance 377.
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 0 379 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/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
416 Index Folding Mirrors . . . . . . . . . . . . . . . . . . 53
Forward Automatic Braking . . . . . 248
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 246
Four-Wheel Drive . . . . . . . . . . 222, 299
Four-Wheel-Drive Light . . . . . . . . . 146
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 396
Front Axle . . . . . . . . . . . . . . . . . . . . . . 300
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Front Seats
Heated and Ventilated . . . . . . . . . . 67
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Additives . . . . . . . . . . . . . . . . . . . . . 255
Economy Driving . . . . . . . . . . . . . . . 26
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 258
Filling the Tank . . . . . . . . . . . . . . . 256
Foreign Countries . . . . . . . . . . . . 255
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 137
Low Fuel Warning Light . . . . . . . 149
Management, Active . . . . . . . . . . 214
Requirements, California . . . . . 255
Full-Size Spare Tire . . . . . . . . . . . . 350
Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 310 Fuses (cont'd)
Fuses and Circuit Breakers . . . 309
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 314, 317
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 319
G Garage Door Opener . . . . . . . . . . . 166
Programming . . . . . . . . . . . . . . . . . 166
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 305
Gauges
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 138
Engine Oil Pressure . . . . . . . . . . 137
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Odometer . . . . . . . . . . . . . . . . . . . . . 136
Speedometer . . . . . . . . . . . . . . . . . 136
Tachometer . . . . . . . . . . . . . . . . . . . 136
Transmission Temperature . . . . 139
Trip Odometer . . . . . . . . . . . . . . . . 136
Voltmeter . . . . . . . . . . . . . . . . . . . . . 140
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 132
General Information
Service and Maintenance . . . . . 369
Towing . . . . . . . . . . . . . . . . . . . . . . . . 259
Vehicle Care . . . . . . . . . . . . . . . . . . 277
Glass Replacement . . . . . . . . . . . . . 304 Glove Box . . . . . . . . . . . . . . . . . . . . . . 118
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 390
H Hazard Warning Flashers . . . . . . . 174
Head Restraints . . . . . . . . . . . . . . . . . 61
Head-up Display . . . . . . . . . . . . . . . . 154
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 306
Automatic . . . . . . . . . . . . . . . . . . . . . 173
Bulb Replacement . . . . . . . . . . . . 306
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 173
Flash-to-Pass . . . . . . . . . . . . . . . . . 172
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 306
High-Beam On Light . . . . . . . . . . 149
High/Low Beam Changer . . . . . 172
Lamps On Reminder . . . . . . . . . 150
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . 69
Steering Wheel . . . . . . . . . . . . . . . 123
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Heated Mirrors . . . . . . . . . . . . . . . . . . . 54
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 210
Heating . . . . . . . . . . . . . . . . . . . . 180, 184

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
Index 417High-Beam On Light . . . . . . . . . . . . 149
High-Speed Operation . . . . . . . . . . 328
Hill and Mountain Roads . . . . . . . . 198
Hill Descent Control (HDC) . . . . . 231
Hill Start Assist (HSA) . . . . . . . . . . 229
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 77
HVAC . . . . . . . . . . . . . . . . . . . . . . 180, 184
I Ignition Positions . . . . . . . . . . 205, 207
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . . . 303
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 51
Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 146
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 98
Infotainment . . . . . . . . . . . . . . . . . . . . 179
Infotainment System . . . . . . . . . . . . 399
Instrument Cluster . . . . . . . . . . . . . . 133
Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . .118
Interior Rearview Mirrors . . . . . . . . . 55
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2 J Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 351
K Keyless Entry
Remote (RKE) System . . . . . 31, 33
Keys . . . . . . . . . . . . . . . . . . . . . . . . . 27, 28
L Labeling, Tire Sidewall . . . . . . . . . . 322
Lamps
Daytime Running (DRL) . . . . . . 173
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 176
Exterior Controls . . . . . . . . . . . . . . 170
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 172
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 178
License Plate . . . . . . . . . . . . . . . . . 308
Malfunction Indicator
(Check Engine) . . . . . . . . . . . . . 143
On Reminder . . . . . . . . . . . . . . . . . 150
Reading . . . . . . . . . . . . . . . . . . . . . . 176
Lane Change Alert (LCA) . . . . . . . 250
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . 252
Lane Keep Assist (LKA) . . . . . . . . 252
Lane Keep Assist Light . . . . . . . . . 146 Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 83
Lap-Shoulder Belt . . . . . . . . . . . . . . . 78
LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . 111
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . 104
LED Lighting . . . . . . . . . . . . . . . . . . . . 307
Level Control
Automatic . . . . . . . . . . . . . . . . . . . . . 232
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 177
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Illumination Control . . . . . . . . . . . 176
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Lights
Airbag Readiness . . . . . . . . . . . . . 141
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 145
Brake System Warning . . . . . . . 145
Charging System . . . . . . . . . . . . . 142
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 143
Cruise Control . . . . . . . . . . . . . . . . 150
Door Ajar . . . . . . . . . . . . . . . . . . . . . 150
Engine Coolant
Temperature Warning . . . . . . . 148

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
418 Index Lights (cont'd)
Engine Oil Pressure . . . . . . . . . . 149
Flash-to-Pass . . . . . . . . . . . . . . . . . 172
Four-Wheel-Drive . . . . . . . . . . . . . 146
Front Fog Lamp . . . . . . . . . . . . . . 150
High-Beam On . . . . . . . . . . . . . . . . 149
High/Low Beam Changer . . . . . 172
Lane Keep Assist . . . . . . . . . . . . . 146
Low Fuel Warning . . . . . . . . . . . . 149
Seat Belt Reminders . . . . . . . . . . 140
Security . . . . . . . . . . . . . . . . . . . . . . 149
StabiliTrak OFF . . . . . . . . . . . . . . . 147
Tire Pressure . . . . . . . . . . . . . . . . . 148
Tow/Haul Mode . . . . . . . . . . . . . . . 146
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 147
Traction Off . . . . . . . . . . . . . . . . . . . 147
Locking Rear Axle . . . . . . . . . . . . . . 232
Locks
Automatic Door . . . . . . . . . . . . . . . . . 42
Delayed Locking . . . . . . . . . . . . . . . . 42
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Lockout Protection . . . . . . . . . . . . . . 42
Power Door . . . . . . . . . . . . . . . . . . . . . 42
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Loss of Control . . . . . . . . . . . . . . . . . 192
Low Fuel Warning Light . . . . . . . . . 149
Low-Profile Tires . . . . . . . . . . . . . . . . 322 Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 104
Lumbar Adjustment . . . . . . . . . . . . . . 63
Front Seats . . . . . . . . . . . . . . . . . . . . . 63
M Magnetic Ride Control . . . . . . . . . . 232
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 382
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 376
Maintenance Schedule . . . . . . . . . 370
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . 379
Transfer Case . . . . . . . . . . . . . . . . 222
Malfunction Indicator Lamp . . . . . 143
Manual Mode . . . . . . . . . . . . . . . . . . . 218
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 64
Messages
Engine Power . . . . . . . . . . . . . . . . 158
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 157
Vehicle Speed . . . . . . . . . . . . . . . . 158
Mirror
Child-View . . . . . . . . . . . . . . . . . . . . . . 56
Mirrors
Automatic Dimming . . . . . . . . . . . . . 54 Mirrors (cont'd)
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 56
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 54
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 52
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 53
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 54
Manual Rearview . . . . . . . . . . . . . . . 55
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Tilt in Reverse . . . . . . . . . . . . . . . . . . 55
Mirrors, Interior Rearview . . . . . . . . 55
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 329
N Navigation
OnStar . . . . . . . . . . . . . . . . . . . . . . . 402
Net, Convenience . . . . . . . . . . . . . . 120
New Vehicle Break-In . . . . . . . . . . . 204
Noise Control System . . . . . . . . . . 301
O Odometer . . . . . . . . . . . . . . . . . . . . . . . 136
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 192
Driving . . . . . . . . . . . . . . . . . . . . . . . . 192
Recovery . . . . . . . . . . . . . . . . . . . . . 191
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 283

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
422 Index Tires (cont'd)
Rotation . . . . . . . . . . . . . . . . . . . . . . 334
Sidewall Labeling . . . . . . . . . . . . . 322
Terminology and Definitions . . 324
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 337
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 339
Wheel Replacement . . . . . . . . . . 339
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 335
Winter . . . . . . . . . . . . . . . . . . . . . . . . 321
Tow/Haul Mode . . . . . . . . . . . . . . . . . 222
Tow/Haul Mode Light . . . . . . . . . . . 146
Towing
Driving Characteristics . . . . . . . . 259
Equipment . . . . . . . . . . . . . . . . . . . . 267
General Information . . . . . . . . . . 259
Recreational Vehicle . . . . . . . . . . 355
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 262
Trailer Sway Control (TSC) . . . 273
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 355
Traction
Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 147
Off Light . . . . . . . . . . . . . . . . . . . . . . 147
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . . 229 Trailer
Sway Control (TSC) . . . . . . . . . . 273
Towing . . . . . . . . . . . . . . . . . . . . . . . . 262
Transfer Case . . . . . . . . . . . . . . . . . . 222
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . 216
Fluid, Automatic . . . . . . . . . 286, 289
Temperature Gauge . . . . . . . . . . 139
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 392
Trip Odometer . . . . . . . . . . . . . . . . . . 136
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 174
U Uniform Tire Quality Grading . . . 337
Universal Remote System . . . . . . 166
Operation . . . . . . . . . . . . . . . . . . . . . 168
Programming . . . . . . . . . . . . . . . . . 166
Using This Manual . . . . . . . . . . . . . . . . 2
V Vehicle
Alarm System . . . . . . . . . . . . . . . . . . 49
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 190
Identification Number (VIN) . . . 383
Load Limits . . . . . . . . . . . . . . . . . . . 200
Messages . . . . . . . . . . . . . . . . . . . . 157 Vehicle (cont'd)
Personalization . . . . . . . . . . . . . . . 158
Remote Start . . . . . . . . . . . . . . . . . . . 39
Security . . . . . . . . . . . . . . . . . . . . . . . . 49
Speed Messages . . . . . . . . . . . . . 158
Towing . . . . . . . . . . . . . . . . . . . . . . . . 355
Vehicle Ahead Indicator . . . . . . . . 146
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . 327
Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . . . . . 398
Ventilation, Air . . . . . . . . . . . . . . . . . . 185
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Voltmeter Gauge . . . . . . . . . . . . . . . 140
W Warning
Brake System Light . . . . . . . . . . . 145
Caution and Danger . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . 252
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . . 132
Warnings
Hazard Flashers . . . . . . . . . . . . . . 174
Washer Fluid . . . . . . . . . . . . . . . . . . . 296
Wheels
Alignment and Tire Balance . . 339
Different Size . . . . . . . . . . . . . . . . . 337
Replacement . . . . . . . . . . . . . . . . . 339