313 GMC YUKON 2018 Owner's Manual

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GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Keys, Doors, and Windows 53
Intrusion and Inclination
Sensors Disable Switch
It is recommended that the intrusion
and inclination sensors be
deactivated if pets are left in the
vehicle or the vehicle is being
transported.
With the vehicle off, press
oin
the front overhead console to turn
off the feature. The indicator light will come on
momentarily, indicating that these
sensors have been disabled until
the next time the alarm system is
armed.
Immobilizer
See
Radio Frequency Statement
0 402.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off. The system is automatically
disarmed when the ignition is turned
from off to on.
The security light, in the instrument
cluster, comes on if there is a
problem with arming or disarming
the theft-deterrent system.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key. It may be
necessary to check the fuse. See
Fuses and Circuit Breakers
0313.
If the engine still does not start with
the other key, the vehicle needs
service. If the vehicle does start, the
first key may be faulty. See your
dealer.

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GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Lighting 179
The lever returns to its starting
position whenever it is released.
If after signaling a turn or a lane
change the arrows flash rapidly or
do not come on, a signal bulb could
be burned out.
Replace any burned out bulbs. If a
bulb is not burned out, check the
fuse. SeeFuses and Circuit
Breakers 0313.
Turn Signal On Chime
If the turn signal is left on for more
than 1.2 km (0.75 mi), a chime
sounds at each flash of the turn
signal. The message TURN
SIGNAL ON will also appear in the
Driver Information Center (DIC). To
turn the chime and message off,
move the turn signal lever to the off
position.Fog Lamps
If equipped with fog lamps, the
button is on the exterior lamp
control, to the left of the steering
column. The ignition must be on for the fog
lamps to come on.
#:
Press to turn the fog lamps on
or off. A light will come on in the
instrument cluster.
When the fog lamps are turned on,
the parking lamps automatically
turn on.
When the headlamps are changed
to high beam, the fog lamps also go
off. When the high-beam headlamps
are turned off, the fog lamps will
come on again.
Some localities have laws that
require the headlamps to be on with
the fog lamps.

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GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
264 Driving and Operating
.The trailer must be equipped
with brakes adequate for the
intended use. A loaded trailer
weighing more than 900 kg
(2,000 lb) must be equipped with
its own brake system, with
brakes working on all axles.
Trailer braking equipment
conforming to Canadian
Standards Association (CSA)
requirement CAN3-D313, or its
equivalent, is recommended.
. Do not tow a trailer during the
first 800 km (500 mi) to prevent
damage to the engine, axle,
or other parts.
. Then during the first 800 km
(500 mi) of trailer towing, do not
drive over 80 km/h (50 mph) and
do not make starts at full throttle.
. Vehicles can tow in D (Drive).
Shift the transmission to a lower
gear if the transmission shifts
too often under heavy loads and/
or hilly conditions.
. Do not use Adaptive Cruise
Control when towing. .
Turn off Parking Assist and Rear
Cross Traffic Alert (RTCA) when
towing.
. The Forward Automatic Braking
System should be set to Off
when towing. See Forward
Automatic Braking (FAB) 022.
. Turn off Lane Keep Assist (LKA)
when towing. See Lane Keep
Assist (LKA) 0257.
{Warning
When towing a trailer, exhaust
gases may collect at the rear of
the vehicle and enter if the
liftgate, trunk/hatch, or rear-most
window is open.
When towing a trailer:
. Do not drive with the
liftgate, trunk/hatch,
or rear-most window open.
. Fully open the air outlets on
or under the instrument
panel.
(Continued)
Warning (Continued)
.Also adjust the climate
control system to a setting
that brings in only outside
air. See “Climate Control
Systems” in the Index.
For more information about
carbon monoxide, see Engine
Exhaust 0219.
Towing a trailer requires a certain
amount of experience. The
combination you are driving is
longer and not as responsive as the
vehicle itself. Get acquainted with
the handling and braking of the rig
before setting out for the open road.
The structure, tires, and brakes of
the trailer must be rated to carry the
load. Inadequate trailer equipment
can cause the combination to
operate in an unexpected or unsafe
manner.
Before starting, check all trailer hitch
parts and attachments, safety
chains, electrical connectors, lamps,

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272 Driving and Operating
leave just enough slack so the
combination can turn. Never allow
safety chains to drag on the ground.
Trailer Brakes
A loaded trailer that weighs more
than 900 kg (2,000 lb) must be
equipped with its own brake system,
with brakes working on all axles.
Trailer braking equipment
conforming to Canadian Standards
Association (CSA) requirement
CAN3-D313, or its equivalent, is
recommended.
State and local regulations may also
require the trailer to have its own
braking system if loaded above a
certain threshold. These
requirements vary from state to
state.
Be sure to read and follow the
instructions for the trailer brakes so
they are installed, adjusted, and
maintained properly. These
requirements vary from state to
state.Do not tap into the vehicle's
hydraulic brake system.
Since the vehicle is equipped with
StabiliTrak, the trailer brakes cannot
tap into the vehicle's hydraulic
system.
Trailer Wiring Harness
The seven-pin trailer connector is
mounted in the bumper. This
connector can be plugged into a
seven-pin universal heavy-duty
trailer connector available through
your dealer.
Use only a round, seven-wire
connector with flat blade terminals
meeting SAE J2863 specifications
for proper electrical connectivity.
The seven-wire harness contains
the following trailer circuits:
.
Yellow/Grey: Left Stop/Turn
Signal
. Green/Violet: Right Stop/Turn
Signal
. Grey/Brown: Taillamps
. White: Ground .
White/Green: Back-up Lamps
. Red/Green: Battery Feed
. Dark Blue: Trailer Brake
To help charge a remote
(non-vehicle) battery, press the Tow/
Haul Mode button at the end of the
shift lever. If the trailer is too light for
Tow/Haul Mode, turn on the
headlamps to help 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.

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GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
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280 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 281
California Proposition65 Warning . . . . . . . . . . . . . . . . . 281
California Perchlorate Materials Requirements . . . . . 282
Accessories and Modifications . . . . . . . . . . . . . . . . 282
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 282
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 283
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 284
Engine Oil . . . . . . . . . . . . . . . . . . . . 287
Engine Oil Life System . . . . . . . 289
Automatic Transmission Fluid (6 Speed Transmission) . . . . . 290
Automatic Transmission Fluid (8 and 10 Speed
Transmission) . . . . . . . . . . . . . . . 293
Engine Air Cleaner/Filter . . . . . . 294
Cooling System . . . . . . . . . . . . . . 295
Engine Overheating . . . . . . . . . . 298
Engine Fan . . . . . . . . . . . . . . . . . . . 300
Washer Fluid . . . . . . . . . . . . . . . . . 300 Brakes . . . . . . . . . . . . . . . . . . . . . . . 301
Brake Fluid . . . . . . . . . . . . . . . . . . . 302
Battery - North America . . . . . . 303
Four-Wheel Drive . . . . . . . . . . . . . 303
Front Axle . . . . . . . . . . . . . . . . . . . . 304
Rear Axle . . . . . . . . . . . . . . . . . . . . 305
Noise Control System . . . . . . . . 305
Starter Switch Check . . . . . . . . . 306
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 307
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 307
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 307
Wiper Blade Replacement . . . . 308
Glass Replacement . . . . . . . . . . 309
Windshield Replacement . . . . . 309
Gas Strut(s) . . . . . . . . . . . . . . . . . . 309
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 310
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 311
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 311
LED Lighting . . . . . . . . . . . . . . . . . . 311
Fog Lamps . . . . . . . . . . . . . . . . . . . 311
Back-Up Lamps . . . . . . . . . . . . . . 311
License Plate Lamp . . . . . . . . . . 312
Electrical System
Electrical System Overload . . . 313
Fuses and Circuit Breakers . . . 313
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 314
Instrument Panel Fuse
Block (Left) . . . . . . . . . . . . . . . . . 318
Instrument Panel Fuse Block (Right) . . . . . . . . . . . . . . . . . . . . . . 321
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 323
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 324
All-Season Tires . . . . . . . . . . . . . . 325
Winter Tires . . . . . . . . . . . . . . . . . . 325
Low-Profile Tires . . . . . . . . . . . . . 326
All-Terrain Tires . . . . . . . . . . . . . . . 326
Tire Sidewall Labeling . . . . . . . . 326
Tire Designations . . . . . . . . . . . . . 327
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 328
Tire Pressure . . . . . . . . . . . . . . . . . 331
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 332
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 333
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 334
Tire Inspection . . . . . . . . . . . . . . . . 337

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Vehicle Care 313
1. Bulb Socket
2. Bulb
3. Lamp Assembly
To replace one of these bulbs:1. Push the lamp assembly (3) toward the center of the
vehicle.
2. Pull the lamp assembly down to remove.
3. Turn the bulb socket (1) counterclockwise to remove it
from the lamp assembly (3).
4. Pull the bulb (2) straight out of the bulb socket (1).
5. Push the replacement bulb straight into the bulb socket
and turn the bulb socket
clockwise to install it into the
lamp assembly.
6. Push the lamp assembly back into position until the release
tab locks into place.
Electrical System
Electrical System
Overload
The vehicle has fuses to protect
against an electrical system
overload. Fuses also protect power
devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, there
are some spare fuses and a fuse
puller in the left instrument panel
fuse block. The same amperage
fuse can also be borrowed. Choose
some feature of the vehicle that is
not needed to use and replace it as
soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.

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420 Index
Check (cont'd)Ignition Transmission Lock . . . 307
Child Restraints Infants and Young Children . . . 101
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . 107
Older Children . . . . . . . . . . . . . . . . 100
Securing . . . . . . . . . . . . .115, 117, 118
Systems . . . . . . . . . . . . . . . . . . . . . . 104
Child-View Mirror . . . . . . . . . . . . . . . . 57
Circuit Breakers . . . . . . . . . . . . . . . . 313
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 365
Interior Care . . . . . . . . . . . . . . . . . . 369
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 184
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Cluster, Instrument . . . . . . . . . . . . . 136
Collision Damage Repair . . . . . . . 399
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . 121
Compass . . . . . . . . . . . . . . . . . . . . . . . 129
Connections
OnStar . . . . . . . . . . . . . . . . . . . . . . . 409
Control Hill Descent . . . . . . . . . . . . . . . . . . 236 Control (cont'd)
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 234
Control of a Vehicle . . . . . . . . . . . . . 194
Convenience Net . . . . . . . . . . . . . . . 123
Convex Mirrors . . . . . . . . . . . . . . . . . . 54
Coolant
Engine Temperature Gauge . . 141
Engine TemperatureWarning Light . . . . . . . . . . . . . . . 151
Cooling . . . . . . . . . . . . . . . . . . . . 184, 188
Cooling System . . . . . . . . . . . . . . . . . 295
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 398
Cruise Control . . . . . . . . . . . . . . . . . . 237 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Cruise Control, Adaptive . . . . . . . . 240
Cupholders . . . . . . . . . . . . . . . . . . . . . 121
Customer Assistance . . . . . . . . . . . 395 Offices . . . . . . . . . . . . . . . . . . . . . . . . 394
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 395
Customer Information
Service PublicationsOrdering Information . . . . . . . . 401
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 392D
Damage Repair, Collision . . . . . . . 399
Danger, Warning, and Caution . . . . 3
Data CollectionInfotainment System . . . . . . . . . . 405
OnStar . . . . . . . . . . . . . . . . . . . . . . . 405
Data Recorders, Event . . . . . . . . . 404
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 177
Defensive Driving . . . . . . . . . . . . . . . 194
Delayed Locking . . . . . . . . . . . . . . . . . 43
Diagnostics
OnStar . . . . . . . . . . . . . . . . . . . . . . . .411
Distracted Driving . . . . . . . . . . . . . . . 193
Dome Lamps . . . . . . . . . . . . . . . . . . . 180
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 154
Delayed Locking . . . . . . . . . . . . . . . . 43
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Power Locks . . . . . . . . . . . . . . . . . . . . 43
Drive Belt Routing, Engine . . . . . . 391
Driver Assistance Systems . . . . . 247
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 154
Driving Assistance Systems . . . . . . . . . . 250
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 263

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Index 421
Driving (cont'd)Defensive . . . . . . . . . . . . . . . . . . . . . 194
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 194
For Better Fuel Economy . . . . . . . 27
Hill and Mountain Roads . . . . . . 202
If the Vehicle is Stuck . . . . . . . . . 203
Loss of Control . . . . . . . . . . . . . . . 196
Off-Road . . . . . . . . . . . . . . . . . . . . . 196
Off-Road Recovery . . . . . . . . . . . 195
Vehicle Load Limits . . . . . . . . . . . 204
Wet Roads . . . . . . . . . . . . . . . . . . . 201
Winter . . . . . . . . . . . . . . . . . . . . . . . . 202
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 184
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 260
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 279
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 314
Fuses and Circuit Breakers . . . 313
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 318, 321
Overload . . . . . . . . . . . . . . . . . . . . . 313
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 323 Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 407
Engine Air Cleaner/Filter . . . . . . . . . . . . . 294
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 146
Compartment Overview . . . . . . . 284
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 141
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 151
Cooling System . . . . . . . . . . . . . . . 295
Drive Belt Routing . . . . . . . . . . . . 391
Exhaust . . . . . . . . . . . . . . . . . . . . . . 219
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Heater . . . . . . . . . . . . . . . . . . . . . . . . 215
Oil Life System . . . . . . . . . . . . . . . 289
Oil Pressure Gauge . . . . . . . . . . 140
Oil Pressure Light . . . . . . . . . . . . 152
Overheating . . . . . . . . . . . . . . . . . . 298
Power Messages . . . . . . . . . . . . . 161
Running While Parked . . . . . . . . 220
Starting . . . . . . . . . . . . . . . . . . . . . . . 213
Entry Lighting . . . . . . . . . . . . . . . . . . . 181
Equipment, Towing . . . . . . . . . . . . . 271
Event Data Recorders . . . . . . . . . . 404
Exit Lighting . . . . . . . . . . . . . . . . . . . . 181
Extended Parking . . . . . . . . . . . . . . . 219 Extender, Seat Belt . . . . . . . . . . . . . . 85
Exterior Lamp Controls . . . . . . . . . 174
Exterior Lamps Off Reminder . . . 176
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 182
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 300
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter,
Engine Air Cleaner . . . . . . . . . . . 294
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 176
Flashers, Hazard Warning . . . . . . 178
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 345 Changing . . . . . . . . . . . . . . . . . . . . . 346
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 373
Fluid AutomaticTransmission . . . . . . . . . . . 290, 293
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 302
Four-Wheel Drive Transfer Case . . . . . . . . . . . . . . . 226
Washer . . . . . . . . . . . . . . . . . . . . . . . 300
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 179

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422 Index
Fog Lamps (cont'd)Bulb Replacement . . . . . . . . . . . . .311
Folding Mirrors . . . . . . . . . . . . . . . . . . 55
Forward Automatic Braking . . . . . 253
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 250
Four-Wheel Drive . . . . . . . . . . 226, 303
Four-Wheel-Drive Light . . . . . . . . . 149
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 402
Front Axle . . . . . . . . . . . . . . . . . . . . . . 304
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Front Seats
Heated and Ventilated . . . . . . . . . . 69
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259 Additives . . . . . . . . . . . . . . . . . . . . . 260
Economy Driving . . . . . . . . . . . . . . . 27
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 263
Filling the Tank . . . . . . . . . . . . . . . 261
Foreign Countries . . . . . . . . . . . . 260
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 140
Low Fuel Warning Light . . . . . . . 152
Management, Active . . . . . . . . . . 218
Requirements, California . . . . . 260
Full-Size Spare Tire . . . . . . . . . . . . 355 Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 314
Fuses and Circuit Breakers . . . 313
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 318, 321
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 323
G
Garage Door Opener . . . . . . . . . . . 170Programming . . . . . . . . . . . . . . . . . 170
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 309
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 141
Engine Oil Pressure . . . . . . . . . . 140
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Odometer . . . . . . . . . . . . . . . . . . . . . 139
Speedometer . . . . . . . . . . . . . . . . . 139
Tachometer . . . . . . . . . . . . . . . . . . . 139
Transmission Temperature . . . . 142
Trip Odometer . . . . . . . . . . . . . . . . 139
Voltmeter . . . . . . . . . . . . . . . . . . . . . 143
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 135
General Information Service and Maintenance . . . . . 374 General Information (cont'd)
Towing . . . . . . . . . . . . . . . . . . . . . . . . 263
Vehicle Care . . . . . . . . . . . . . . . . . . 281
Glass Replacement . . . . . . . . . . . . . 309
Glove Box . . . . . . . . . . . . . . . . . . . . . . 121
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 396
H
Hazard Warning Flashers . . . . . . . 178
Head Restraints . . . . . . . . . . . . . . . . . 63
Head-up Display . . . . . . . . . . . . . . . . 157
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 310
Automatic . . . . . . . . . . . . . . . . . . . . . 177
Bulb Replacement . . . . . . . . . . . . .311
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 177
Flash-to-Pass . . . . . . . . . . . . . . . . . 176
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . .311
High-Beam On Light . . . . . . . . . . 153
High/Low Beam Changer . . . . . 176
Lamps On Reminder . . . . . . . . . 153
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 71
Steering Wheel . . . . . . . . . . . . . . . 126