2021 INFINITI QX80 ECO mode

10-30Technical and consumer information
— the Forward Emergency Braking(FEB) with pedestrian detection sys-
tem
— the Predictive Forward Collision Warning (PFCW) system
. Some states or provinces have specific
regulations and speed limits for vehicles
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 tail
pipe or rear bumper.
. Make sure you disconnect the trailer
lights before backing the trailer into the
water or the trailer lights may burn out.
When towing a trailer, the transmission
fluid should be changed more frequently.
For additional information, see “9. Main-
tenance and schedules” section.
TOW mode
Using TOW mode is recommended when
pulling a heavy trailer or hauling a heavy
load. Push the TOW mode switch to activate
TOW mode. The TOW mode indicator light
in the meter illuminates when TOW mode is
selected. Push the TOW mode switch again to turn TOW mode off. TOW mode is
automatically cancelled when the ignition
switch is placed in the OFF position.
TOW mode includes the following features:
.
Grade logic — Adjusts transmission shifts
when pulling a trailer or hauling a load up
a grade.
. Downhill Speed Control (DSC) — auto-
matically downshifts when driving down
a grade with a trailer or heavy load to
help control vehicle speed.
Driving the vehicle in the TOW mode with no
trailer/load or light trailer/light load will not
cause any damage. However, fuel economy
may be reduced and the transmission/
engine driving characteristics may feel unu-
sual.
When towing a trailer, the transmission
fluid should be changed more frequently.
For additional information, see “9. Main-
tenance and schedules” section.
Trailer Sway Control
To minimize trailer sway, your vehicle may
apply braking to individual wheels based on
input from your vehicle sensors and vehicle
speed. Trailer Sway Control is a function of
the Vehicle Dynamic Control (VDC) system
and is active when the VDC function is
enabled.
CAUTION
If the VDC OFF switch is on (meaning
VDC system OFF), the Trailer Sway
Control is also disabled.
When Trailer Sway Control is in operation,
the VDC warning light blinks. When vehicle
control is regained, VDC warning light will
turn OFF.
For additional information about the VDC
system, see “Vehicle Dynamic Control (VDC)
system” (P.5-125).
If Trailer Sway Control activates:
1. Take your foot off the accelerator pedal to allow the vehicle to coast and steer as
straight ahead as the road conditions
allow. This combination will help stabilize
the vehicle.
CAUTION
Do not try to correct trailer sway by
steering 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 isbalanced.
NOTE:
Trailer Sway Control cannot reduce trailer
sway in all situations.
FLAT TOWING
Towing your vehicle with all four wheels on
the ground is sometimes called flat towing.
This method is sometimes used when towing
a vehicle behind a recreational vehicle, such
as a motor home.
CAUTION
. Failure to follow these guidelines can
result in severe transmission damage.
. Whenever flat towing your vehicle,
always tow forward, never back-
ward.
. DO NOT tow any automatic trans-
mission vehicle with all four wheels
on the ground (flat towing). Doing so
WILL DAMAGE internal transmis-
sion parts due to lack of transmission
lubrication.
. DO NOT tow a Four-Wheel Drive
(4WD) vehicle with any of the wheels
on the ground. Doing so may cause
serious and expensive damage to the powertrain.
. For emergency towing procedures
refer to “Towing recommended by
INFINITI” (P.6-16).
Automatic Transmission
Four-Wheel Drive (4WD) models:
Do not tow a 4WD vehicle with any of the
wheels on the ground.
Two-Wheel Drive (2WD) models:
To tow a vehicle equipped with an automatic
transmission, an appropriate vehicle dolly
MUST be placed under the towed vehicle’s
drive wheels. Alwaysfollow the dolly man-
ufacturer’s recommendations when using
their product. DOT (Department Of Transportation) Qual-
ity Grades: All passenger car tires must
conform to federal safety requirements in
addition to these grades.
Quality grades can be found where applic-
able on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
TREADWEAR
The treadwear grade is a comparative rating
based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon actual conditions of their use, however,
and may depart significantly from the norm
due to variations in driving habits, service
practices and differences in road character-
istics and climate.
Technical and consumer information10-31
UNIFORM TIRE QUALITY GRADING

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 passenger
safety belts were buckled/fastened;
. How far (if at all) the driver was depres-
sing the accelerator and/or brake pedal;
and,
. How fast the vehicle was traveling.
. Sounds are not recorded.
These data can help provide a better under-
standing 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 ac-
quired 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 re-
tailer, 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.Genuine INFINITI Service Manual for this
model year and prior can be purchased. A
genuine INFINITI Service Manual is the best
source of service and repair information for
your vehicle. This manual is the same one
used by the factory-trained technicians
working at INFINITI retailers. Genuine
INFINITI Owner’s Manual can also be pur-
chased.
For USA:
For current pricing and availability of genu-
ine
INFINITI Service Manuals, contact:
www.infiniti-techinfo.com
For current pricing and availability of genu-
ineINFINITI Owner’s Manuals, contact:
1-800-247-5321
For Canada:
To purchase a copy of a genuine INFINITI
Service Manual or Owner’s Manual for this
model year and prior, please contact an
INFINITI retailer. For the phone number
and location of an INFINITI retailer in your
area, call the INFINITI Satisfaction Center at
1-800-361-4792 and a bilingual INFINITI
representative will assist you.
Technical and consumer information10-35
EVENT DATA RECORDERS (EDR) OWNER’S MANUAL/SERVICE
MANUAL ORDER INFORMATION

11 Index
A
ABS (Anti-lock Braking System) ................... 5-124
Adaptive front lighting system (AFS) ............ 2-45
Advanced air bag system .................................. 1-58
Aiming controlAdaptive front lighting system (AFS) ...... 2-45
Headlights ....................................................... 2-44
Air bag system
Advanced air bag system ............................ 1-58
Front passenger air bag and
status light ....................................................... 1-60
Front-seat mounted side-impact
supplemental air bag system ..................... 1-65
Roof-mounted curtain side-impact and
rollover supplemental air bag system ...... 1-65
Air bag warning labels ....................................... 1-68
Air bag warning light .............................. 1-69, 2-14
Air cleaner housing filter ................................... 8-14
Air conditioner Air conditioner service ................................. 4-37
Air conditioner specification label ......... 10-13
Air conditioning system refrigerant
and oil recommendations ................ 4-37, 10-7
Automatic air conditioner ........................... 4-29
Automatic climate control ......................... 4-28
DUAL mode setting ...................................... 4-32
In-cabin microfilter ........................................ 4-36
Alarm, How to stop alarm (see vehicle
security system) ................................................... 2-35 Alcohol, drugs and driving ................................ 5-10
Antenna .................................................................. 4-37
Anti-lock Braking System (ABS) ................... 5-124
Anti-lock braking system (ABS)
warning light ......................................................... 2-15
Appearance care
Exterior appearance care ............................... 7-2
Interior appearance care ................................ 7-5
Armrest ................................................................... 1-10
Around View
®Monitor ........................................ 4-3
Audible reminders ................................................ 2-19
Auto closure .......................................................... 3-25
Autolight system .................................................. 2-40
Automatic
Automatic air conditioner ........................... 4-29
Automatic Transmission Fluid (ATF) ......... 8-8
Climate control .............................................. 4-28
Door locks .......................................................... 3-6
Drive positioner ............................................. 3-40
Driving with automatic transmission ....... 5-18
Seat positioner .............................................. 3-40
Average speed ...................................................... 2-31
Avoiding collision and rollover ........................... 5-8
B
Back door (See liftgate) ..................................... 3-22
Back-up Collision Intervention
(BCI) system .......................................................... 5-53 Battery .................................................................... 8-11
Battery saver system ........................ 2-44, 2-72
Intelligent Key ................................................. 8-21
Variable voltage control system ............... 8-13
Before starting the engine ................................ 5-15
Belts (See drive belts) ......................................... 8-13
Blind Spot Intervention
®(BSI) system .......... 5-41
Blind Spot Warning (BSW) system ................ 5-31
Booster seats ........................................................ 1-48
Brake
Anti-lock Braking System (ABS) ............ 5-124
Brake booster ................................................. 8-17
Brake fluid ......................................................... 8-9
Brake system ................................................ 5-123
Parking brake operation .............................. 5-22
Warning light .................................................. 2-12
Break-in schedule .............................................. 5-111
Brightness control Instrument panel ............................................ 2-46
Bulb check/instrument panel ........................... 2-12
Bulb replacement ................................................. 8-23
C
Cabin air filter ....................................................... 4-36
Camera aiding sonar function ......................... 4-17
Capacities and
recommended fluids/lubricants ....................... 10-2
Car phone or CB radio ....................................... 4-38
Cargo floor box .................................................... 2-66

11-2
Cargo light ............................................................. 2-75
Catalytic converter, Three way catalyst ......... 5-4
Center ventilators ................................................ 4-27
Child restraints ...................................................... 1-31Booster seats .................................................. 1-48
LATCH system ............................................... 1-33
Precautions on child restraints .................. 1-31
Top tether strap ............................................. 1-36
Child safety ........................................................... 1-29
Child safety rear door lock .................................. 3-6
Chimes Audible reminders .......................................... 2-19
Seat belt warning light and chime ............ 2-14
Circuit breaker, Fusible link .............................. 8-19
Cleaning exterior and interior .................... 7-2, 7-5
Climate control Automatic air conditioner ........................... 4-29
Automatic climate control ......................... 4-28
Clock ........................................................................\
2-33
Coat hooks ............................................................ 2-65
Cockpit ...................................................................... 2-3
Cold weather driving ........................................ 5-128
Console box ........................................................... 2-63
Console light ......................................................... 2-73
Coolant
Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ............................... 8-5
Checking engine coolant level ...................... 8-5
Corrosion protection ............................................. 7-8 Cruise control ....................................................... 5-62
Fixed speed cruise control (on
ICC system) .................................................... 5-80
Intelligent cruise control (ICC) system .... 5-64
Cruise indicator .................................................... 2-26
Cup holders ........................................................... 2-60
Current fuel consumption ................................. 2-31
D
Daytime running light system .......................... 2-45
Dimensions ......................................................... 10-10
Distance Control Assist (DCA) system .......... 5-84
Drive belts .............................................................. 8-13
Drive positioner ................................................... 3-40
Driving Cold weather driving ................................. 5-128
Driving with automatic transmission ....... 5-18
On-pavement and off-road driving ........... 5-8
Precautions when starting and driving ..... 5-4
Safety precautions ........................................ 5-10
E
E-Call (SOS) Button ........................................... 2-59
Economy, Fuel .................................................... 5-113
Elapsed time ......................................................... 2-31
Elapsed time and trip odometer ..................... 2-31
Emission control information label ............... 10-12
Emission control system warranty .............. 10-32
EngineBefore starting the engine .......................... 5-15 Break-in schedule ........................................ 5-111
Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ............................... 8-5
Changing engine oil and filter ...................... 8-6
Checking engine coolant level ...................... 8-5
Checking engine oil level ............................... 8-6
Coolant temperature gauge ......................... 2-8
Emergency engine shut off ......................... 5-14
Engine block heater .................................... 5-129
Engine compartment check locations ........ 8-3
Engine cooling system ................................... 8-4
Engine oil ........................................................... 8-6
Engine oil and oil
filter recommendation .................................. 10-6
Engine oil viscosity ........................................ 10-7
Engine serial number ................................. 10-12
Engine specifications ................................... 10-8
Engine start operation indicator ............... 2-24
If your vehicle overheats ............................. 6-14
Oil pressure gauge .......................................... 2-9
Protection mode ............................................ 5-17
Starting the engine ....................................... 5-15
Entry/exit function, Automatic
drive positioner ................................................... 3-40
Event Data Recorders (EDR) ........................ 10-35
Exhaust gas (carbon monoxide) ........................ 5-4
Explanation of scheduled
maintenance items ................................................. 9-5
Extended storage switch .................................. 8-20

TirePressure, Low tire pressure
warning light ................................................... 2-16
Tires
Flat tire ............................................................... 6-3
Low tire pressure warning system ............. 5-5
Tire and Loading
information label ............................. 8-28, 10-13
Tire chains ....................................................... 8-34
Tire dressing ...................................................... 7-4
Tire pressure ................................................... 8-27
Tire pressure monitoring
system (TPMS) ........................................ 5-5, 6-3
Tire rotation .................................................... 8-35
Types of tires .................................................. 8-33
Uniform tire quality grading .................... 10-31
Wheel/tire size ............................................... 10-9
Wheels and tires ............................................ 8-27
Top
Tether strap child restraints ....................... 1-36
TOW mode .......................................................... 5-122
TOW mode switch .............................................. 2-53
Towing Flat towing ................................................... 10-31
Tow truck towing .......................................... 6-15
Towing a trailer ........................................... 10-19
Towing safety .............................................. 10-23
TPMS, Tire pressure monitoring system ......... 5-5
TPMS with Tire Inflation Indicator ............. 5-7
TPMS, Tire pressure warning system .............. 6-3
Trailer towing ..................................................... 10-19 Transceiver
HomeLink®
Universal Transceiver ....................... 2-75, 2-79
Transmission
Automatic Transmission Fluid (ATF) ......... 8-8
Driving with automatic transmission ....... 5-18
Transmission shift lever lock release ....... 5-21
Transmitter (See remote keyless
entry system) ........................................................ 3-15
Traveling or registering your vehicle in
another country ................................................. 10-11
Trip computer ....................................................... 2-31
Trip odometer ....................................................... 2-31
Turn signal switch ............................................... 2-46
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading ........................... 10-31
USB (Universal Serial Bus)
charging connector ............................................. 2-58
V
Vanity mirror ......................................................... 3-39
Vanity mirror lights ............................................. 2-74
Variable voltage control system ..................... 8-13
Vehicle Dimensions ................................................... 10-10
Identification number (VIN) ...................... 10-11
Loading information .................................. 10-15
Recovery (freeing a stuck vehicle) ............ 6-18 Security system .............................................. 2-34
Vehicle dynamic control (VDC)
off switch ......................................................... 2-53
Vehicle dynamic control
(VDC) system ................................................ 5-125
Vehicle dynamic control (VDC)
warning light ................................................... 2-18
Vehicle information display .............................. 2-20
Vehicle speed ........................................................ 2-31
Ventilators ............................................................. 4-27
Voltmeter ............................................................... 2-10
W
Warning Hazard warning flasher switch .................... 6-2
Loose Fuel Cap warning ............................. 2-25
Predictive Forward Collision
Warning (PFCW) ........................................ 5-103
Tire Pressure Low Add Air warning ........ 2-25
Tire pressure monitoring
system (TPMS) ........................................ 5-5, 6-3
Vehicle information display ........................ 2-20
Warning lights, indicator lights and
audible reminders .......................................... 2-11
Warning labels, Air bag warning labels ........ 1-68
Warning light 4WD warning light ..................................... 5-118
Air bag warning light ........................ 1-69, 2-14
Anti-lock braking system (ABS)
warning light ................................................... 2-15
Brake warning light ....................................... 2-12
11-7