2021 INFINITI QX80 ECU

When you carry the Intelligent Key with you,
you can lock or unlock all doors by pushing
the door handle request switch (driver’s or
front passenger’s)
or the liftgate request
switchwithin the range of operation.
When you lock or unlock the doors or the
liftgate, the hazard indicator will flash and
the horn (or the outside chime) will sound as
a confirmation. For details, see “Setting
hazard indicator and horn mode” (P.3-17).
Welcome light and farewell light
function
When you lock or unlock the doors including
the liftgate, the parking lights, tail lights and
the license plate light will illuminate for a
period of time. The welcome light and fare-
well light function can be disabled. For
information about disabling the welcome
light and farewell light function, it is recom-
mended you see an INFINITI retailer.
Locking doors and fuel-filler door
1. Move the shift lever to the P (Park) position, push the ignition switch to the
OFF position and make sure you carry
the Intelligent Key with you.*1
2. Close all the doors.*2
3. Push the door handle request switch (driver’s or front passenger’s)
or the
liftgate request switchwhile carrying the Intelligent Key with you.*3
4. All the doors and fuel-filler door will lock.
5. The hazard indicator flashes twice and the outside chime sounds twice.
*1: Doors will lock with the Intelligent Key
while the ignition switch is in the ACC or ON
position.
*2: Doors will not lock with the Intelligent
Key while any door is open.
*3: Doors will not lock by pushing the door
handle request switch with the Intelligent
Key inside the vehicle.
However, when an Intelligent Key is inside
the vehicle, doors can be locked with another
registered Intelligent Key.
CAUTION
. After locking the doors using the
request switch, make sure that the
doors have been securely locked by
operating the door handles.
. When locking the doors using the
request switch, make sure to have the
Intelligent Key in your possession
before operating the request switch
to prevent the Intelligent Key from
being left in the vehicle. .
The request switch is operational
only when the Intelligent Key has
been detected by the Intelligent Key
system.
Lockout protection:
To prevent the Intelligent Key from being
accidentally locked in the vehicle, lockout
protection is equipped with the Intelligent
Key system.
When the driver’s side door is open, the
doors are locked, and then the Intelligent
Key is put inside the vehicle and all the doors
are closed; the lock will automatically unlock
and the door buzzer sounds.
NOTE:
The doors may not lock when the Intelligent
Key is in the same hand that is operating the
request switch to lock the door. Put the
Intelligent Key in a purse, pocket or your
other hand.
CAUTION
The lockout protection may not function
under the following conditions:
. When the Intelligent Key is placed on
top of the instrument panel.
Pre-driving checks and adjustments3-11

TROUBLESHOOTING GUIDE
SymptomPossible causeAction to take
When pushing the ignition
switch to stop the engine The Shift to Park warning appears on the
display and the inside warning chime
sounds continuously or for a few seconds.
The shift lever is not in the P (Park)
position.
Shift the shift lever to the P (Park)
position.
When shifting the shift lever to
the P (Park) position. The inside warning chime sounds continu-
ously. The ignition switch is in the ACC or
ON position.Push the ignition switch to the OFF
position.
When opening the driver’s door
to get out of the vehicle The inside warning chime sounds continu-
ously. The ignition switch is in the ACC
position.Push the ignition switch to the OFF
position.
When closing the door after
getting out of the vehicle The No Key Detected warning appears on
the display, the outside chime sounds 3
times and the inside warning chime sounds
for a few seconds.
The ignition switch is in the ACC or
ON position.
Push the ignition switch to the OFF
position.
The Shift to Park warning appears on the
display and the outside chime sounds
continuously. The ignition switch is in the ACC or
OFF position and the shift lever is not
in the P (Park) position.Move the shift lever to the P (Park)
position and push the ignition switch to
the OFF position.
When closing the door with the
inside lock knob turned to
LOCK The outside chime sounds for a few
seconds and all the doors unlock.
The Intelligent Key is inside the
vehicle or cargo area.
Carry the Intelligent Key with you.
When pushing the request
switch or the LOCK
but-
ton on the Intelligent Key to
lock the door The outside chime sounds for a few
seconds. The Intelligent Key is inside the
vehicle.
Carry the Intelligent Key with you.
A door is not closed securely. Close the door securely.
When pushing the door handle
request switch to lock the door The outside chime sounds for a few
seconds. The Intelligent Key is inside the
vehicle or cargo area.
Carry the Intelligent Key with you.
A door is not closed securely. Close the door securely.
The door handle request switch is
pushed before the door is closed. Push the door handle request switch
after the door is closed.
Pre-driving checks and adjustments3-13

WARNING
The Intelligent Key transmits radio
waves when the buttons are pushed.
The FAA advises that radio waves may
affect aircraft navigation and commu-
nication systems. Do not operate the
Intelligent Key while on an airplane.
Make sure the buttons are not operated
unintentionally when the unit is stored
for a flight.
It is possible to lock/unlock all doors, fuel-
filler door, activate the panic alarm and open
the windows by pushing the buttons on the
Intelligent Key from outside the vehicle.
Before locking the doors, make sure the
Intelligent Key is not left in the vehicle.
The LOCK/UNLOCK button on the Intelli-
gent Key can operate at a distance of
approximately 33 ft (10 m) from the vehicle.
(The effective distance depends upon the
conditions around the vehicle.)
As many as 4 Intelligent Keys can be used
with one vehicle. For information concerning
the purchase and use of additional Intelli-
gent Keys, contact an INFINITI retailer.
The lock and unlock buttons on the Intelli-
gent Key will not operate when: .
the distance between the Intelligent Key
and the vehicle is over 33 ft (10 m).
. the Intelligent Key battery runs down.
After locking with the remote keyless entry
function, pull the door handle to make sure
the doors are securely locked.
The LOCK/UNLOCK operating range varies
depending on the environment. To securely
operate the lock and unlock buttons, ap-
proach the vehicle to about 3 ft (1 m) from
the door.
Pre-driving checks and adjustments3-15
REMOTE KEYLESS ENTRY SYSTEM

3-20Pre-driving checks and adjustments
lights illuminate. If the vehicle is not
within view, push and hold the remote
engine start
button for at least 2
seconds.
The following events will occur when the
engine starts:
. The front parking lights will turn on and
remain on as long as the engine is
running.
. The doors will be locked and the air
conditioner system may turn on.
. The engine will continue to run for about
10 minutes. Repeat the steps to extend
the time for an additional 10 minutes.
See “Extending engine run time” (P.3-
20).
Depress and hold the brake pedal, then place
the ignition switch in the ON position before
driving. For further instructions, see “Driving
the vehicle” (P.5-17).
EXTENDING ENGINE RUN TIME
The remote engine start function can be
extended one time by performing the steps
listed in “Remote starting the engine” (P.3-
19). Run time will be calculated as follows:
. The first 10 minute run time will start
when the remote engine start function is
performed.
. The second 10 minutes will start imme-
diately when the remote engine start function is performed. For example, if
the engine has been running for 5
minutes, and 10 minutes are added, the
engine will run for a total of 15 minutes.
. Extending engine run time will count
towards the two remote engine start
limit.
A maximum of two remote engine starts, or
a single start with an extension, are allowed
between ignition cycles.
The ignition switch must be cycled to the ON
position and then back to the OFF position
before the remote engine start procedure
can be used again.
CANCELING A REMOTE ENGINE
START
To cancel a remote engine start, perform one
of the following:
. Aim the Intelligent Key at the vehicle and
push and hold the remote engine start
button until the front parking lights
turn off.
. Turn on the hazard indicator flashers.
. Cycle the ignition switch ON and then
OFF.
. The extended engine run time has ex-
pired.
. The first 10 minute timer has expired. .
The engine hood has been opened.
. The shift lever is moved out of the P
(Park) position.
. The theft alarm sounds due to illegal
entry into the vehicle.
. The ignition switch is pushed without an
Intelligent Key in the vehicle.
. The ignition switch is pushed with an
Intelligent Key in the vehicle but the
brake pedal is not depressed.
CONDITIONS THE REMOTE EN-
GINE START WILL NOT WORK
The remote engine start will not operate if
any of the following conditions are present:
. The ignition switch is placed in the ON
position.
. The hood is not securely closed.
. The hazard indicator flashers are on.
. The engine is still running. The engine
must be completely stopped. Wait at
least 6 seconds if the engine goes from
running to off. This is not applicable
when extending engine run time.
. The remote engine start
button is
not pushed and held for at least 2
seconds.
. The remote engine start
button is
not pushed and held within 5 seconds of
pushing the “LOCK”
button.

3-22Pre-driving checks and adjustments
WARNING
.Always be sure the liftgate has been
closed securely to prevent it from
opening while driving.
. Do not drive with the liftgate open.
This could allow dangerous exhaust
gases to be drawn into the vehicle.
See “Exhaust gas (carbon monoxide)”
(P.5-4).
. Do not leave children unattended
inside the vehicle. They could un-
knowingly activate switches or con-
trols. Unattended children could
become involved in serious accidents.
. Always be sure that hands and feet
are clear of the door frame to avoid
injury while closing the liftgate.
JVP0569X
OPERATING MANUAL LIFTGATE
To open the liftgate, unlock it and push the
liftgate opener switch. Pull up the liftgate
to open.
The liftgate can be unlocked by:
. pushing the unlock button
on the
Intelligent Key twice.
. pushing the liftgate request switch with
the Intelligent Key carried on you.
. pushing the door handle request switch
twice with the Intelligent Key carried on
you.
. pushing the power door lock switch to
the unlock position. .
inserting the mechanical key into the
driver’s door key cylinder and turning it
to the rear of the vehicle twice.
To close the liftgate, pull down until it
securely locks.
OPERATING POWER LIFTGATE
To operate the power liftgate, the shift lever
must be in the P (Park) position.
The power liftgate will not operate if the
battery voltage is low.
LIFTGATE

SPA2752
To open the fuel-filler door, unlock the fuel-
filler door by using one of the following
operations, then push the right side of the
door.
.Push the driver’s door handle request
switch with the Intelligent Key carried
with you.
. Push the passenger’s door handle re-
quest switch or liftgate request switch
twice with the Intelligent Key carried
with you.
. Push the UNLOCK button on the Intel-
ligent Key.
. Insert the mechanical key into the door
lock cylinder and rotate it towards the
rear of the vehicle. .
Push the power door lock switch to the
UNLOCK position.
To lock, close the fuel-filler door securely
and lock all doors by operating the door
handle request switch, the LOCK button on
the Intelligent Key, the mechanical key or the
power door lock switch.
FUEL-FILLER CAP
WARNING
. Gasoline is extremely flammable and
highly explosive under certain condi-
tions. You could be burned or ser-
iously injured if it is misused or
mishandled. Always stop engine and
do not smoke or allow open flames or
sparks near the vehicle when refuel-
ing.
. Do not attempt to top off the fuel
tank after the fuel pump nozzle shuts
off automatically. Continued refuel-
ing may cause fuel overflow, resulting
in fuel spray and possibly a fire.
. Use only an original equipment type
fuel-filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious malfunction and possible injury. It
could also cause the malfunction
indicator light to come on.
. Never pour fuel into the throttle body
to attempt to start your vehicle.
. Do not fill a portable fuel container in
the vehicle or trailer. Static electricity
can cause an explosion of flammable
liquid, vapor or gas in any vehicle or
trailer. To reduce the risk of serious
injury or death when filling portable
fuel containers:
— Always place the container on the ground when filling.
— Do not use electronic devices when filling.
— Keep the pump nozzle in contact with the container while you are
filling it.
— Use only approved portable fuel containers for flammable liquid.
CAUTION
. If fuel is spilled on the vehicle body,
flush it away with water to avoid
paint damage.
Pre-driving checks and adjustments3-27

4-14Monitor, climate, audio, phone and voice recognition systems
AROUND VIEW®MONITOR SYS-
TEM LIMITATIONS
WARNING
Listed below are the system limitations
for Around View®Monitor. Failure to
operate the vehicle in accordance with
these system limitations could result in
serious injury or death.
. Do not use the Around View
®Moni-
tor with the outside mirrors in the
stored position, and make sure that
the liftgate is securely closed when
operating the vehicle using the
Around View
®Monitor.
. The apparent distance between ob-
jects viewed on the Around View
®
Monitor differs from the actual dis-
tance.
. The cameras are installed on the
front grille, the outside mirrors and
above the rear license plate. Do not
put anything on the vehicle that
covers the cameras.
. When washing the vehicle with high
pressure water, be sure not to spray
it around the cameras. Otherwise,
water may enter the camera unit causing water condensation on the
lens, a malfunction, fire or an electric
shock.
. Do not strike the cameras. They are
precision instruments. Doing so could
cause a malfunction or cause damage
resulting in a fire or an electric shock.
WAE0277X
There are some areas where the system will
not show objects and the system does not
warn of moving objects. When in the front or
rear view display, an object below the
bumper or on the ground may not be viewed
. When in the bird’s-eye view, a tall object
near the seamof the camera viewing
areas will not appear in the monitor.

5-4Starting and driving
WARNING
.Do not leave children or adults who
would normally require the support
of others alone in your vehicle. Pets
should not be left alone either. They
could accidentally injure themselves
or others through inadvertent opera-
tion of the vehicle. Also, on hot,
sunny days, temperatures in a closed
vehicle could quickly become high
enough to cause severe or possibly
fatal injuries to people or animals.
. Properly secure all cargo to help
prevent it from sliding or shifting.
Do not place cargo higher than the
seatbacks. In a sudden stop or colli-
sion, unsecured cargo could cause
personal injury.
EXHAUST GAS (carbon monoxide)
WARNING
.Do not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is dan-
gerous. It can cause unconsciousness
or death. .
If you suspect that exhaust fumes are
entering the vehicle, drive with all
windows fully open, and have the
vehicle inspected immediately.
. Do not run the engine in closed spaces
such as a garage.
. Do not park the vehicle with the
engine running for any extended
length of time.
. Keep the liftgate closed while driving,
otherwise exhaust gases could be
drawn into the passenger compart-
ment. If you must drive with the
liftgate open, follow these precau-
tions:
1) Open all the windows.
2) Set the
air recirculation to
off and the fan control to high to
circulate the air.
. If electrical wiring or other cable
connections must pass to a trailer
through the seal on the liftgate or the
body, follow the manufacturer’s re-
commendation to prevent carbon
monoxide entry into the vehicle.
. The exhaust system and body should
be inspected by a qualified mechanic
whenever:
— The vehicle is raised for service. — You suspect that exhaust fumes
are entering into the passenger
compartment.
— You notice a change in the sound of the exhaust system.
— You have had an accident invol- ving damage to the exhaust sys-
tem, underbody, or rear of the
vehicle.
THREE-WAY CATALYST
The three-way catalyst is an emission con-
trol device installed in the exhaust system.
Exhaust gases in the three-way catalyst are
burned at high temperatures to help reduce
pollutants.
WARNING
. The exhaust gas and the exhaust
system are very hot. Keep people,
animals or flammable materials away
from the exhaust system compo-
nents.
. Do not stop or park the vehicle over
flammable materials such as dry
grass, waste paper or rags. They
may ignite and cause a fire.
PRECAUTIONS WHEN STARTING
AND DRIVING