2014 INFINITI QX80 brake

10,000 lb (4,545 kg). A weight distributing
hitch should be used to tow trailers that
weigh over 5,000 lb (2,267 kg).
Your vehicle may be equipped with Class IV
trailer hitch equipment that has a 10,000
lb (4,545 kg) maximum weight rating, but
your vehicle is only capable of towing the
maximum trailer weights shown in the
“Towing Load/Specification”chart earlier
in this section.
CAUTION
. Do not use axle-mounted hitches.
. Do not modify the vehicle exhaust
system, brake system, etc.
. Do not attach any additional hitches to
your vehicle because a hitch is already
mounted to your vehicle frame.
Tire pressures
.When towing a trailer, inflate the
vehicle tires to the recommended
cold tire pressure indicated on the
Tire and Loading Information la-
bel.
.Trailer tire condition, size, loadrating and proper inflation pres-
sure should be in accordance with
the trailer and tire manufacturers’
specifications.
Safety chains
Always use a suitable chain between your
vehicle and the trailer. The safety chains
should be crossed and should be attached
to the hitch, not to the vehicle bumper or
axle. Be sure to leave enough slack in the
chains to permit turning corners.
STI0745
Trailer lights
Your vehicle is equipped with a towing
package, which also includes the 7-pin
trailer harness connector located under the
trailer hitch cover on the rear bumper.
CAUTION
. When splicing into the vehicle electrical
system, a commercially available power-
type module/converter must be used to
provide power for all trailer lighting. This
unit uses the vehicle battery as a direct
power source for all trailer lights while
Technical and consumer information9-25

9-26Technical and consumer information
using the vehicle tail light, stoplight and
turn signal circuits as a signal source.
The module/converter must draw no
more than 15 milliamps from the stop
and tail lamp circuits. Using a module/
converter that exceeds these power
requirements may damage the vehicle’s
electrical system. See a reputable trailer
retailer to obtain the proper equipment
and to have it installed.
. Do not connect electrical devices that
draw more than 40 amps to the vehicle.
The fusible link may melt.
Trailer lights should comply with federal
and/or local regulations. For assistance in
hooking up trailer lights, contact an
INFINITI retailer or reputable trailer retailer.
Trailer brakes
When towing a trailer load of 3,500 lbs.
(1,587 kg) or more, trailers with a brake
system MUST be used. However, most
states require a separate braking system
on trailers with a loaded weight above a
specific amount. Make sure the trailer
meets the local regulations and the regula-
tions where you plan to tow.
Several types of braking systems are available.
Surge Brakes -
The surge brake actuator is
mounted on the trailer tongue with a
hydraulic line running to each trailer
wheel. Surge brakes are activated by the
trailer pushing against the hitch ball when
the tow vehicle is braking. Hydraulic surge
brakes are common on rental trailers and
some boat trailers. In this type of system,
there is no hydraulic or electric connection
for brake operation between the tow
vehicle and the trailer.
Electric Trailer Brakes - Electric braking
systems are activated by an electronic
signal sent from a trailer brake controller
(special brake sensing module).
Have a professional supplier of towing
equipment make sure the trailer brakes are
properly installed and demonstrate proper
brake function testing.
WARNING
Never connect a trailer brake system directly
to the vehicle brake system.
Pre-towing tips
. Be certain your vehicle maintains a level
position when a loaded or unloaded
trailer is hitched. Do not drive the
vehicle if it has an abnormal nose-up
or nose-down condition; check for
improper tongue load, overload, worn
suspension or other possible causes of
either condition.
. Always secure items in the trailer to
prevent load shift while driving.
. Keep the cargo load as low as possible
in the trailer to keep the trailer center of
gravity low.
. Load the trailer so approximately 60%
of the trailer load is in the front half and
40% is in the back half. Also make sure
the load is balanced side to side.
. Check your hitch, trailer tire pressure,
vehicle tire pressure, trailer light opera-
tion, and trailer wheel lug nuts every
time you attach a trailer to the vehicle.
. Be certain your rearview mirrors con-
form to all federal, state or local
regulations. If not, install any mirrors
required for towing before driving the
vehicle.
. Determine the overall height of the
vehicle and trailer so the required

clearance is known.
Trailer towing tips
In order to gain skill and an understanding
of the vehicle’s behavior, you should
practice turning, stopping and backing up
in an area which is free from traffic.
Steering stability, and braking perfor-
mance will be somewhat different than
under normal driving conditions.
. Always secure items in the trailer to
prevent load shift while driving.
. Lock the trailer hitch coupler with a pin
or lock to prevent the coupler from
inadvertently becoming unlatched.
. Avoid abrupt starts, acceleration or
stops.
. Avoid sharp turns or lane changes.
. Always drive your vehicle at a moderate
speed. Some states or provinces have
specific speed limits for vehicles that
are towing trailers. Obey the local
speed limits.
. When backing up, hold the bottom of
the steering wheel with one hand.
Move your hand in the direction in
which you want the trailer to go. Make
small corrections and back up slowly. If
possible, have someone guide you when you are backing up.
Always block the wheels on both vehicle
and trailer when parking. Parking on a
slope is not recommended; however, if you
must do so:
CAUTION
If you move the shift lever to the P (Park)
position before blocking the wheels and
applying the parking brake, transmission
damage could occur.
1. Apply and hold the brake pedal.
2. Have someone place blocks on the downhill side of the vehicle and trailer
wheels.
3. After the wheel blocks are in place, slowly release the brake pedal until the
blocks absorb the vehicle load.
4. Apply the parking brake.
5. Shift the transmission into P (Park).
6. Four-Wheel Drive (4WD) models:
Make sure that the 4WD shift switch is
engaged in the AUTO, 4HI or 4LO
position and the Automatic Transmis-
sion (AT) park warning light is turned off.
7. Turn off the engine.
To drive away:
1. Apply and hold the brake pedal.
2. Start the engine.
3. Shift the transmission into gear.
4. Release the parking brake.
5. Drive slowly until the vehicle and trailer are clear from the blocks.
6. Apply and hold the brake pedal.
7. Have someone retrieve and store the blocks.
. While going downhill, the weight of the
trailer pushing on the tow vehicle may
decrease overall stability. Therefore, to
maintain adequate control, reduce your
speed and shift to a lower gear. Avoid
long or repeated use of the brakes
when descending a hill, as this reduces
their effectiveness and could cause
overheating. Shifting to a lower gear
instead provides “engine braking” and
reduces the need to brake as fre-
quently.
. If the engine coolant temperature rises
to a high temperature, see “If your
vehicle overheats” in the“6. In case of
Technical and consumer information9-27

9-28Technical and consumer information
emergency”section.
. Trailer towing requires more fuel than
normal circumstances.
. Avoid towing a trailer for your vehicle’s
first 500 miles (800 km).
. Have your vehicle serviced more often
than at intervals specified in the
recommended maintenance schedule
in the INFINITI Service and Maintenance
Guide.
. When making a turn, your trailer wheels
will be closer to the inside of the turn
than your vehicle wheels. To compen-
sate for this, make a larger than normal
turning radius during the turn.
. Crosswinds and rough roads will ad-
versely affect vehicle/trailer handling,
possibly causing vehicle sway. When
being passed by larger vehicles, be
prepared for possible changes in cross-
winds that could affect vehicle hand-
ling.
Do the following if the trailer begins to
sway:
1. Take your foot off the accelerator pedal to allow the vehicle to coast and steer
as straight ahead as the road condi-
tions allow. This combination will help
stabilize the vehicle..Do not correct trailer sway by steer-ing or applying the brakes.
2. When the trailer sway stops, gently apply the brakes and pull to the side of
the road in a safe area.
3. Try to rearrange the trailer load so it is balanced as described earlier in this
section.
. Be careful when passing other vehicles.
Passing while towing a trailer requires
considerably more distance than nor-
mal passing. Remember the length of
the trailer must also pass the other
vehicle before you can safely change
lanes.
. Use the Tow mode or downshift the
transmission to a lower gear for engine
braking when driving down steep or
long hills. This will help slow the
vehicle without applying the brakes.
. Avoid holding the brake pedal down too
long or too frequently. This could cause
the brakes to overheat, resulting in
reduced braking efficiency.
. Increase your following distance to
allow for greater stopping distances
while towing a trailer. Anticipate stops
and brake gradually. .
INFINITI recommends that the cruise
control not be used while towing a
trailer.
. While towing a trailer, do not use the
following systems (if so equipped):
— the Lane Departure Prevention (LDP)
system
— the Blind Spot Warning (BSW) sys-
tem
— the Blind Spot Intervention system
— the Back-up Collision Intervention
(BCI) system (if so equipped)
— the Intelligent Cruise Control (ICC)
system
— the Distance Control Assist (DCA)
system
— the Intelligent Brake Assist (IBA)
system
. Some states or provinces have specific
regulations and speed limits for vehi-
cles that are towing trailers. Obey the
local speed limits.
. Check your hitch, trailer wiring harness
connections, and trailer wheel lug nuts
after 50 miles (80 km) of travel and at
every break.
. When launching a boat, do not allow
the water level to go over the exhaust

the vehicle may be reset to a“not ready
condition” . Before taking the I/M test,
check the vehicle’ s inspection/mainte-
nance test readiness condition. Place the
ignition switch in the ON position without
starting the engine. If the Malfunction
Indicator Light (MIL) comes on steady for
20 seconds and then blinks for 10
seconds, the I/M test condition is “not
ready”. If the MIL does not blink after 20
seconds, the I/M test condition is “ready”.
Contact an INFINITI retailer to set “ready
condition” or to prepare the vehicle for
testing. This vehicle is equipped with an Event Data
Recorder (EDR). The main purpose of an
EDR is to record, in certain crash or near
crash-like situations, such as an air bag
deployment or hitting a road obstacle, data
that will assist in understanding how a
vehicle’s systems performed. The EDR is
designed to record data related to vehicle
dynamics and safety systems for a short
period of time, typically 30 seconds or
less. The EDR in this vehicle is designed to
record such data as:
. How various systems in your vehicle
were operating;
. Whether or not the driver and passen-
ger safety belts were buckled/fastened;
. How far (if at all) the driver was
depressing the accelerator and/or
brake pedal; and,
. How fast the vehicle was traveling.
. Sounds are not recorded.
These data can help provide a better
understanding of the circumstances in
which crashes and injuries occur.
NOTE: EDR data are recorded by your
vehicle only if a nontrivial crash situation
occurs; no data are recorded by the EDR
under normal driving conditions and no
personal data (e.g. name, gender, age and crash location) are recorded. However,
other parties, such as law enforcement,
could combine the EDR data with the type
of personally identifying data routinely
acquired during a crash investigation.
To read data recorded by an EDR, special
equipment is required and access to the
vehicle or the EDR is needed. In addition to
the vehicle manufacturer and INFINITI
retailer, other parties, such as law enforce-
ment, that have the special equipment, can
read the information if they have access to
the vehicle or the EDR. EDR data will only
be accessed with the consent of the vehicle
owner or lessee or as otherwise required or
permitted by law.
Technical and consumer information9-33
EVENT DATA RECORDERS (EDR)

10 Index
A
ABS (Anti-lock Braking System) ....................... 5-113
Adaptive front lighting system (AFS) .................. 2-41
Advanced air bag system .................................. 1-61
Aiming controlAdaptive front lighting system (AFS) ............. 2-41
Headlights ................................................... 2-41
Air bag system
Advanced air bag system ............................. 1-61
Front passenger air bag and status light ...... 1-63
Front-seat mounted side-impact supplemental
air bag system ............................................. 1-67
Roof-mounted curtain side-impact and rollover
supplemental air bag system ....................... 1-67
Air bag warning labels ...................................... 1-69
Air bag warning light ............................... 1-70, 2-17
Air cleaner housing filter ................................... 8-19
Air conditioner Advanced Climate Control System ............... 4-42
Air conditioner service ................................. 4-47
Air conditioner specification label ................ 9-13
Air conditioning system refrigerant and
lubricant recommendations .................. 4-47, 9-7
Automatic climate control .................. 4-39, 4-41
In-cabin microfilter ....................................... 4-46
Alarm, How to stop alarm (see vehicle
security system) ................................................ 2-32
Alcohol, drugs and driving .................................. 5-9
Antenna ............................................................ 4-82
Anti-lock Braking System (ABS) ....................... 5-113 Anti-lock braking system (ABS) warning light .... 2-12
Appearance care
Exterior appearance care ................................ 7-2
Interior appearance care ................................ 7-4
Armrest ............................................................. 1-18
Around View
TMMonitor ..................................... 4-21
Audible reminders ............................................ 2-21
Audio operation precautions ............................. 4-47
Audio system .................................................... 4-47 Steering wheel audio controls ...................... 4-81
Auto closure ..................................................... 3-24
Autolight system ............................................... 2-39
Automatic Automatic transmission fluid (ATF) ............... 8-12
Climate control .................................. 4-39, 4-41
Door locks ..................................................... 3-6
Drive positioner ........................................... 3-33
Driving with automatic transmission ............ 5-17
Moonroof ..................................................... 2-64
Seat positioner ............................................ 3-33
Average fuel consumption and speed ................ 2-29
Avoiding collision and rollover ............................ 5-7
B
Back door (See lift gate) ................................... 3-20
Back-up Collision Intervention (BCI) system ....... 5-31
Battery .............................................................. 8-16
Battery saver system ......................... 2-40, 2-65
Intelligent Key .............................................. 8-25 Variable voltage control system ................... 8-17
BCI system operation ........................................ 5-47
Before starting the engine ................................ 5-14
Belts (See drive belts) ....................................... 8-18
Blind Spot Intervention (BSI) ON
indicator light ................................................... 2-19
Blind Spot Intervention (BSI) system ................. 5-31
Blind Spot Warning (BSW) system ..................... 5-31
Blind Spot Warning (BSW)/Blind Spot Intervention
(BSI) system warning light ................................ 2-13
Bluetooth
®Hands-Free Phone System .............. 4-98
Bluetooth®streaming audio ............................. 4-72
Booster seats .................................................... 1-51
Brake
Anti-lock Braking System (ABS) .................. 5-113
Brake booster .............................................. 8-22
Brake fluid ......................................... 8-13, 8-14
Brake system ............................................. 5-110
Parking brake operation ............................... 5-21
Warning light ............................................... 2-13
Break-in schedule ............................................. 5-98
Brightness control Display ON/OFF button .................................. 4-7
Instrument panel ......................................... 2-43
Bulb check/instrument panel ............................ 2-12
Bulb replacement .............................................. 8-28

Remote engine start operation indicator ...... 2-24
Starting the engine ...................................... 5-14
Entry/exit function, Automatic drive positioner ... 3-33
Event Data Recorders (EDR) ............................... 9-33
Exhaust gas (carbon monoxide) .......................... 5-3
Extended storage fuse warning ......................... 2-25
Extended storage switch ................................... 8-25
F
F.M.V.S.S./C.M.V.S.S. certification label ............. 9-12
Filter Air cleaner housing filter .............................. 8-19
Changing engine oil and filter ...................... 8-10
Flashers (See hazard warning flasher switch) ...... 6-2
Flat tire ............................................................... 6-3
Flat towing ........................................................ 9-29
Flexible seating ................................................. 1-18
Floor mat cleaning .............................................. 7-5
Fluid Automatic transmission fluid (ATF) ............... 8-12
Brake fluid ......................................... 8-13, 8-14
Capacities and
recommended fuel/lubricants ........................ 9-2
Engine coolant ............................................... 8-8
Engine oil .................................................... 8-10
Power steering fluid ..................................... 8-13
Window washer fluid ................................... 8-15
FM-AM-SAT radio with Compact Disc
(CD) player ........................................................ 4-60
Fog light switch ................................................ 2-44
Forward Collision Warning (FCW) system ........... 5-90 Front auxiliary input jacks ................................. 4-78
Front passenger air bag and status light ........... 1-63
Front power seat adjustment ............................... 1-4
Front seat
Front seat adjustment .......................... 1-4, 1-18
Front-seat active head restraint ......................... 1-16
Fuel
Capacities and
recommended fuel/lubricants ........................ 9-2
Fuel economy............................................. 5-100
Fuel economy information (display) ................ 4-9
Fuel information ............................................. 9-4
Fuel octane rating .......................................... 9-4
Fuel-filler cap ............................................... 3-25
Fuel-filler door ............................................. 3-25
Gauge ............................................................ 2-9
LOOSE FUEL CAP warning ............................. 3-27
Fuel efficient driving tips ................................... 5-98
Fuses ................................................................ 8-23
Fusible links ..................................................... 8-24
G
Garage door opener HomeLink®Universal Transceiver ................. 2-68
Gas cap ............................................................ 3-25
Gauge ................................................................. 2-6 Engine coolant temperature gauge ................. 2-8
Engine oil pressure gauge .............................. 2-9
Fuel gauge ..................................................... 2-9
Odometer....................................................... 2-7
Speedometer ................................................. 2-7 Tachometer .................................................... 2-8
Trip computer .............................................. 2-28
General maintenance .......................................... 8-2
Glove box ......................................................... 2-57
H
Hands-Free Phone System, Bluetooth®............. 4-98
Hazard warning flasher switch ............................ 6-2
Head restraints ................................................. 1-10
Headlight washer .............................................. 2-42
Headlights Aiming control ............................................. 2-41
Aiming control (See adaptive front lighting
system (AFS)) ............................................... 2-41
Bulb replacement ......................................... 8-29
Headlight switch .......................................... 2-38
Xenon headlights ......................................... 2-38
Heated seats .................................................... 2-45
Heated steering wheel ...................................... 2-44
Heater Automatic climate control .................. 4-39, 4-41
Engine block heater ................................... 5-118
Hill start assist system ................................... 5-107
HomeLink
®Universal Transceiver ...................... 2-68
Hood release .................................................... 3-20
Hook Coat hooks .................................................. 2-59
Luggage hook .............................................. 2-59
Horn ................................................................. 2-45
10-3

10-4
I
Ignition switch (Push-button) ............................ 5-11
Immobilizer system ........................................... 2-32
In-cabin microfilter ............................................ 4-46
IndicatorDot matrix display ....................................... 2-22
Lights .......................................................... 2-18
INFINITI Vehicle Immobilizer System .................. 2-32
INFINITI voice recognition system .................... 4-109
INFO button ........................................................ 4-7
Inside mirror ..................................................... 3-30
Inspection/maintenance (I/M) test .................... 9-32
Instrument brightness control ........................... 2-43
Instrument panel ................................................ 2-5
Intelligent Brake Assist (IBA) off indicator light ... 2-19
Intelligent Brake Assist (IBA) system ................. 5-94
Intelligent cruise control (ICC) system ............... 5-56
Main switch indicator ................................... 2-26
Intelligent Cruise Control (ICC) system
warning light .................................................... 2-15
Intelligent Key ..................................................... 3-2
Intelligent Key system ......................................... 3-7 Battery replacement ..................................... 8-25
Key operating range ....................................... 3-9
Key operation .............................................. 3-10
Warning light ............................................... 2-15
Warning signals ........................................... 3-12
Intelligent Key warning light ............................. 2-15
Interior light control switch ............................... 2-66
Interior light replacement .................................. 8-29 Interior lights .................................................... 2-66
iPod
®player operation ..................................... 4-76
ISOFIX child restraint ........................................ 1-36
J
Jump starting .................................................... 6-11
K
Keyless entry (See remote keyless
entry system) .................................................... 3-15
Keys ................................................................... 3-2
For Intelligent Key system .............................. 3-7
L
LabelsAir bag warning labels ................................. 1-69
Air conditioner specification label ................ 9-13
Emission control information label ............... 9-12
Engine serial number ................................... 9-12
F.M.V.S.S./C.M.V.S.S. certification label ........ 9-12
Tire and Loading information label ...... 8-33, 9-13
Vehicle identification number (VIN) .............. 9-11
Lane Departure Prevention (LDP) ON
indicator light ................................................... 2-20
Lane Departure Prevention (LDP) system ........... 5-26
Lane departure warning (LDW) system .............. 5-22
Lane Departure Warning (LDW)/Prevention
(LDP) system ..................................................... 5-23
Lane departure warning light ............................ 2-15 LATCH system ................................................... 1-36
License plate, Installing front license plate ....... 9-13
Lift gate ............................................................ 3-20
Light
Air bag warning light ................................... 1-70
Bulb replacement ......................................... 8-28
Cargo light ................................................... 2-68
Fog light switch ........................................... 2-44
Headlight switch .......................................... 2-38
Headlights bulb replacement ....................... 8-29
Indicator lights ............................................ 2-18
Interior light control switch .......................... 2-66
Interior lights ............................................... 2-66
Map lights ................................................... 2-66
Replacement ................................................ 8-28
Vanity mirror lights ...................................... 2-67
Warning/indicator lights and
audible reminders ........................................ 2-12
Xenon headlights ......................................... 2-38
Lights, Exterior and interior light replacement ... 8-29
Linking Intelligent Key....................................... 4-46
Loading information (See vehicle
loading information) ......................................... 9-14
Lock Automatic door locks ..................................... 3-6
Door locks ..................................................... 3-4
Lift gate lock ................................................ 3-20
Power door lock ............................................. 3-4
Locking with mechanical key ............................... 3-4
Loose fuel cap warning ..................................... 3-25
Low outside temperature warning ..................... 2-26