4WD INFINITI QX80 2020 User Guide

.When a wheel slips
The above system cannot be used in some
situations. (VDC operates and a wheel slips.)
38. Currently unavailable (if so
equipped)
This message appears and the Blind Spot
Intervention®(BSI) system, the Lane Depar-
ture Prevention (LDP) system, Intelligent
Cruise Control (ICC) and Distance Control
Assist (DCA) system will be turned off
automatically under the following condi-
tions:
. When the VDC system is turned off.
. When the SNOW mode is selected.
. When the 4WD shift switch is in the 4H
or 4L position. (4WD models).
“Vehicle Dynamic Control (VDC) system”
(P.5-124), “SNOW mode” (P.5-121),
“INFINITI all-mode 4WD
®system” (P.5-
112), “Blind Spot Intervention®(BSI)” (P.5-
40), “Lane Departure Warning (LDW)/Lane
Departure Prevention (LDP)” (P.5-22), “In-
telligent Cruise Control (ICC)” (P.5-62) and
“Distance Control Assist (DCA)” (P.5-82).
39. Automatic Transmission (AT)
position indicator
This indicator shows the transmission shift
position. See “Automatic transmission” (P.5-18) for
further details.
40. Rear Door Alert is activated
When the rear door alert system is enabled,
this message appears when the rear door
alert system is active and can remind the
driver to check the rear seat.
NOTE:
This system is disabled until a driver enables
it using the rear door alert switch.
For more details, see “Rear door alert” (P.2-
52).
41. Check Rear Seat for all articles
When the rear door alert system is enabled,
this message appears when the vehicle
comes to a complete stop, the shift lever is
moved from the D (Drive) or R (Reverse)
position to P (Park) position, and the driver
exits the vehicle. This message alerts the
driver, after a period of time, to check for
items in the rear seat after the audible alert
has been provided.
NOTE:
This rear door alert system is disabled until
a driver enables it using the rear door alert
switch.
For more details, see “Rear door alert” (P.2-
52).
Instruments and controls2-27

4-8Monitor, climate, audio, phone and voice recognition systems
Front-wide/rear-wide view:
The front-wide view/rear-wide view shows
a wider area on the entire screen and allows
checking of the blind corners on the right and
left sides. The front-wide view/rear-wide
view displays an approximately 180-degree
area while the front view and the rear view
display an approximately 150-degree area.
The predictive course lines are not displayed
on the front-wide view /rear-wide view.
Distance guide lines
-:
Indicate distances from the vehicle body.
. Red line
: approx. 1.5 ft (0.5 m)
. Yellow line
: approx. 3 ft (1 m)
. Green line
: approx. 7 ft (2 m)
. Green line
(front view only): approx. 10
ft (3 m)
Vehicle width guide lines
:
Indicate the approximate vehicle width.
Off-road mode (for 4WD models)
When the shift lever is out of the R (Reverse)
position, selecting the 4L(O) position using
the 4WD shift switch affects the Around
View
®Monitor display as follows:
. Selecting the 4L position will activate the
Around View
®Monitor. The front view/
front-side view split screen will be dis-
played. .
When the ignition switch is placed in the
ON position with the 4L position se-
lected, the front view/front-side view
split screen will be displayed.
. When the vehicle is shifted to the 4L
position with the bird’s-eye view dis-
played, the passenger side of the display
will change to the front-side view.
When in the off-road mode, the Around
View
®Monitor will not return to the pre-
vious screen. The screen displayed on the
Around View
®Monitor will automatically
return to the previous screen 3 minutes after
the vehicle was shifted out of the 4L
position.
Difference between predicted and
actual distances
The displayed guide lines and their locations
on the ground are for approximate reference
only. Objects on uphill or downhill surfaces
or projecting objects will be actually located
at distances different from those displayed
in the monitor relative to the guide lines
(refer to illustrations). When in doubt, turn
around and view the objects as you are
backing up, or park and exit the vehicle to
view the positioning of objects behind the
vehicle.
WAE0286X
Backing up on a steep uphill:
When backing up the vehicle up a hill, the
distance guide lines and the vehicle width
guide lines are shown closer than the actual
distance. Note that any object on the hill is
farther than it appears on the monitor.

Blind Spot Intervention®(BSI) (if so equipped) ..... 5-40
BSI system operation ............................................... 5-42
Turning the BSI system ON/OFF ........................ 5-43
How to enable/disable the BSI system ............. 5-44
BSI system limitations ............................................ 5-44
BSI driving situations ............................................... 5-45
System temporarily unavailable ........................... 5-50
System malfunction ................................................. 5-50
System maintenance ................................................ 5-51
Back-up Collision Intervention (BCI) ......................... 5-52 BCI system operation .............................................. 5-54
How to enable/disable the BCI system ............. 5-56
BCI system precautions ........................................... 5-57
System temporarily unavailable ............................ 5-59
System malfunction .................................................. 5-59
System maintenance ................................................ 5-59
Cruise control (if so equipped) ................................... 5-60 Precautions on cruise control ............................... 5-60
Cruise control operations ....................................... 5-61
Intelligent Cruise Control (ICC) (if so equipped) ..... 5-62 How to select the cruise control mode ............... 5-64
Vehicle-to-vehicle distance control mode ......... 5-64
Conventional (fixed speed) cruise
control mode .............................................................. 5-78
Distance Control Assist (DCA) (if so equipped) ..... 5-82 DCA system operation .......................................... 5-84
Turning the DCA system ON/OFF ...................... 5-87
How to enable/disable the DCA system .......... 5-88 DCA system display and indicators ................... 5-89
DCA system limitations ......................................... 5-89
System temporarily unavailable .......................... 5-91
System malfunction ................................................ 5-92
Sensor maintenance ............................................... 5-92
Forward Emergency Braking (FEB) with
pedestrian detection ..................................................... 5-93 FEB with pedestrian detection
system operation ..................................................... 5-95
Turning the FEB with pedestrian detection
system ON/OFF ..................................................... 5-96
FEB with pedestrian detection
system limitations ................................................... 5-96
System temporarily unavailable .......................... 5-99
System malfunction ............................................. 5-100
System maintenance ........................................... 5-101
Predictive Forward Collision
Warning (PFCW) ......................................................... 5-101
PFCW system operation .................................... 5-103
Turning the PFCW system ON/OFF ............. 5-103
PFCW system limitations .................................. 5-106
System temporarily unavailable ....................... 5-108
System malfunction ............................................. 5-108
System maintenance ........................................... 5-109
Break-in schedule ........................................................ 5-109
Fuel efficient driving tips .......................................... 5-110
Increasing fuel economy ............................................ 5-111
INFINITI all-mode 4WD
®(if so equipped) ........... 5-111
INFINITI all-mode 4WD®system .................... 5-112

4WD shift switch .................................................... 5-116
4WD shift indicator ................................................ 5-117
4WD warning light ................................................. 5-117
Hill Start Assist system ............................................... 5-119
Parking/parking on hills ............................................. 5-120
TOW mode ..................................................................... 5-121
SNOW mode .................................................................. 5-121
Power steering .............................................................. 5-122
Brake system .................................................................. 5-122 Braking precautions ................................................ 5-122
Parking brake break-in .......................................... 5-122
Brake assist .................................................................... 5-123 Brake assist ............................................................... 5-123
Anti-lock Braking System (ABS) ......................... 5-123 Vehicle Dynamic Control (VDC) system ............... 5-124
Vehicle Dynamic Control (VDC)
OFF switch ............................................................. 5-126
Cold weather driving ................................................... 5-127
Freeing a frozen door lock ................................. 5-127
Antifreeze ................................................................ 5-127
Battery ..................................................................... 5-127
Draining of coolant water .................................. 5-127
Tire equipment ....................................................... 5-127
Special winter equipment ................................... 5-127
Driving on snow or ice ......................................... 5-127
Engine block heater (if so equipped) .............. 5-128

5-10Starting and driving
ABOUT LOWERING OF THE
REAR OF THE VEHICLE
If the loaded vehicle is not moved for a long
time, the vehicle rear body may be to lower.
But it is normal. Once the engine starts, It
will automatically adjust vehicle height.
DRINKING ALCOHOL/DRUGS
AND DRIVING
WARNING
Never drive under the influence of alco-
hol or drugs. Alcohol in the bloodstream
reduces coordination, delays reaction
time and impairs judgement. Driving
after drinking alcohol increases the like-
lihood of being involved in an accident
injuring yourself and others. Addition-
ally, if you are injured in an accident,
alcohol can increase the severity of the
injury.
INFINITI is committed to safe driving. How-
ever, you must choose not to drive under the
influence of alcohol. Every year thousands of
people are injured or killed in alcohol-related
accidents. Although the local laws vary on
what is considered to be legally intoxicated,
the fact is that alcohol affects all people differently and most people underestimate
the effects of alcohol.
Remember, drinking and driving don’t mix!
And that is true for drugs, too (over-the-
counter, prescription, and illegal drugs).
Don’t drive if your ability to operate your
vehicle is impaired by alcohol, drugs, or some
other physical condition.
DRIVING SAFETY PRECAUTIONS
Your INFINITI is designed for both normal
and off-road use. However, avoid driving in
deep water or mud as your INFINITI is
mainly designed for leisure use, unlike a
conventional off-road vehicle.
Remember that Two-Wheel Drive (2WD)
models are less capable than Four-Wheel
Drive (4WD) models for rough road driving
and extrication when stuck in deep snow,
mud, or the like.
Please observe the following precautions:
WARNING
.
Drive carefully when off the road and
avoid dangerous areas. Every person
who drives or rides in this vehicle
should be seated with their seat belt
fastened. This will keep you and your
passengers in position when driving over rough terrain.
. Do not drive across steep slopes.
Instead drive either straight up or
straight down the slopes. Off-road
vehicles can tip over sideways much
more easily than they can forward or
backward.
. Many hills are too steep for any
vehicle. If you drive up them, you
may stall. If you drive down them,
you may not be able to control your
speed. If you drive across them, you
may roll over.
. Do not shift ranges while driving on
downhill grades as this could cause
loss of control of the vehicle.
. Stay alert when driving to the top of
a hill. At the top there could be a
drop-off or other hazard that could
cause an accident.
. If your engine stalls or you cannot
make it to the top of a steep hill,
never attempt to turn around. Your
vehicle could tip or roll over. Always
back straight down in R (Reverse)
range. Never back down in N (Neu-
tral), using only the brake, as this
could cause loss of control.
. Heavy braking going down a hill
could cause your brakes to overheat

and fade, resulting in loss of control
and an accident. Apply brakes lightly
and use a low range to control your
speed.
. Unsecured cargo can be thrown
around when driving over rough
terrain. Properly secure all cargo so
it will not be thrown forward and
cause injury to you or your passen-
gers.
. To avoid raising the center of gravity
excessively, do not exceed the rated
capacity of the roof rack (if so
equipped) and evenly distribute the
load. Secure heavy loads in the cargo
area as far forward and as low as
possible. Do not equip the vehicle
with tires larger than specified in this
manual. This could cause your vehicle
to roll over.
. Do not grip the inside or spokes of the
steering wheel when driving off-
road. The steering wheel could move
suddenly and injure your hands. In-
stead drive with your fingers and
thumbs on the outside of the rim.
. Before operating the vehicle, ensure
that the driver and all passengers
have their seat belts fastened.
. Always drive with the floor mats in
place as the floor may became hot. .
Lower your speed when encountering
strong crosswinds. With a higher
center of gravity, your INFINITI is
more affected by strong side winds.
Slower speeds ensure better vehicle
control.
. Do not drive beyond the performance
capability of the tires, even with
4WD engaged.
. For 4WD equipped vehicles, do not
attempt to raise two wheels off the
ground and shift the transmission to
any drive or reverse position with the
engine running. Doing so may result
in drivetrain damage or unexpected
vehicle movement which could result
in serious vehicle damage or personal
injury.
. Do not attempt to test a 4WD
equipped vehicle on a 2-wheel dy-
namometer (such as the dynam-
ometers used by some states for
emissions testing), or similar equip-
ment even if the other two wheels are
raised off the ground. Make sure you
inform test facility personnel that
your vehicle is equipped with 4WD
before it is placed on a dynamometer.
Using the wrong test equipment may
result in drivetrain damage or unex-
pected vehicle movement which could result in serious vehicle damage or
personal injury (4WD models).
. When a wheel is off the ground due
to an unlevel surface, do not spin the
wheel excessively.
. Accelerating quickly, sharp steering
maneuvers or sudden braking may
cause loss of control.
. If at all possible, avoid sharp turning
maneuvers, particularly at high
speeds. Your vehicle has a higher
center of gravity than a conventional
passenger car. The vehicle is not
designed for cornering at the same
speeds as conventional passenger
cars. Failure to operate this vehicle
correctly could result in loss of con-
trol and/or a rollover accident.
. Always use tires of the same type,
size, brand, construction (bias, bias-
belted or radial), and tread pattern
on all four wheels. Install tire chains
on the rear wheels when driving on
slippery roads and drive carefully.
. Be sure to check the brakes immedi-
ately after driving in mud or water.
See “Brake system” (P.5-122) for
wet brakes.
. Avoid parking your vehicle on steep
hills. If you get out of the vehicle and
Starting and driving5-11

5-12Starting and driving
it rolls forward, backward or side-
ways, you could be injured.
. Whenever you drive off-road
through sand, mud or water as deep
as the wheel hub, more frequent
maintenance may be required. See
the maintenance schedules shown in
the "9. Maintenance and schedules"
section.
. Spinning the rear wheels on slippery
surfaces may cause the 4WD warn-
ing light to flash. The 4WD system
may also automatically switch from
the 4WD mode to the 2WD mode.
This could reduce traction. Be espe-
cially careful when towing a trailer
(4WD models).WARNING
Do not operate the push-button ignition
switch while driving the vehicle except in
an emergency. (The engine will stop
when the ignition switch is pushed 3
consecutive times or the ignition switch
is pushed and held for more than 2
seconds.) If the engine stops while the
vehicle is being driven, this could lead to
a crash and serious injury.
Before operating the push-button ignition
switch, be sure to move the shift lever to the
P (Park) position.
SSD0436
OPERATING RANGE FOR EN-
GINE START FUNCTION
The operating range for starting the engine
inside the vehicleis shown in the illustra-
tion.
. If the Intelligent Key is on the instrument
panel, cargo area, inside the glove box or
door pocket, or the corner of interior
compartment, it may not be possible to
start the engine.
. If the Intelligent Key is near the door or
door glass outside the vehicle, it may be
possible to start the engine.
PUSH-BUTTON IGNITION SWITCH

5-30Starting and driving
Condition C
If the following messages appear in the
vehicle information display, a chime will
sound and the LDP system (if so equipped)
will be turned off automatically.
.“Not available: Poor Road Conditions”:
— When the VDC system (except TCS function) or ABS operates.
. “Currently unavailable”:
— When the VDC system is turned off.
— When the SNOW mode is selected.
— When the 4WD shift switch is in the 4H or 4L position. (4WD models)
Action to take:
When the above conditions no longer exist,
turn off the LDP system (if so equipped) by
pushing the dynamic driver assistance
switch. Push the dynamic driver assistance
switch again to turn the LDP system (if so
equipped) back on.
Temporary disabled status at high
temperature
If the vehicle is parked in direct sunlight
under high temperature conditions (over
approximately 104°F (40°C)) and then
started, the LDW and LDP (if so equipped)
systems may be deactivated automatically
and the following message will appear in the
vehicle information display: “Not available: High Camera Temp”
When the interior temperature is reduced,
the LDW system will resume operating
automatically.
For the LDP system (if so equipped), when
the interior temperature is reduced, turn off
the LDP system by pushing the dynamic
driver assistance switch. Push the dynamic
driver assistance switch again to turn the
LDP system back on.
SYSTEM MALFUNCTION
When the LDW and/or LDP (if so equipped)
system malfunctions, it will turn off auto-
matically. The “Malfunction” warning mes-
sage and LDW indicator (orange) will appear
in the vehicle information display.
Action to take:
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the
engine off and restart the engine. If the
message and LDW indicator (orange) con-
tinue to appear, have the system checked. It
is recommended you visit an INFINITI re-
tailer for this service.SSD0453
SYSTEM MAINTENANCE
The lane camera unitfor the LDW/LDP (if
so equipped) systems is located above the
inside mirror.
To keep the proper operation of the LDW/
LDP (if so equipped) systems and prevent a
system malfunction, be sure to observe the
following:
. Always keep the windshield clean.
. Do not attach a sticker (including trans-
parent material) or install an accessory
near the camera unit.
. Do not place reflective materials, such as
white paper or a mirror, on the instru-
ment panel. The reflection of sunlight

5-50Starting and driving
.BSI braking will not operate or will stop
operating and only a warning chime will
sound under the following conditions.
— When the brake pedal is depressed.
— When the vehicle is accelerated dur-
ing BSI system operation.
— When steering quickly
— When the ICC, DCA, PFCW or FEB
warnings sound.
— When the hazard warning flashers
are operated.
— When driving on a curve at a high
speed.
SYSTEM TEMPORARILY UNA-
VAILABLE
. If the following messages appear in the
vehicle information display, a chime will
sound and the BSI system will be turned
off automatically.
— “Not available: Poor Road Condi- tions”:
When the VDC system (except TCS
function) or ABS operates.
— “Currently unavailable”: When the VDC system is turned off.
When the SNOW mode is selected.
When the 4WD shift switch is in the
4H or 4L position. (4WD models) Action to take:
Turn off the BSI system and turn it on again
when the above conditions no longer exist.
.
If the following messages appear in the
vehicle information display, a chime will
sound and the BSI system will be turned
off automatically. The BSI system is not
available until the conditions no longer
exist.
— “Not available: High Camera Temp”:
When the camera detects that the
interior temperature is high (over
approximately 104°F (40°C)).
— “Unavailable: Side Radar Obstruc- tion”:
When radar blockage is detected.
The radar sensors may be blocked by
temporary ambient conditions such as
splashing water, mist or fog. The blocked
condition may also be caused by objects
such as ice, frost or dirt obstructing the radar
sensors.
Action to take:
When the above conditions no longer exist,
the system will resume automatically. If the
“Unavailable: Side Radar Obstruction” warn-
ing message continues to appear, have the
system checked. It is recommended you visit
an INFINITI retailer for this service.
SYSTEM MALFUNCTION
When the BSI system malfunctions, it will be
turned off automatically, a chime will sound
and “Malfunction” warning message and
BSW indicator (orange) will appear in the
vehicle information display.
Action to take:
Stop the vehicle in a safe location, place the
shift lever in the P (Park) position, turn the
engine off and restart the engine.
If the message and BSW indicator (orange)
continue to appear, have the BSI system
checked. It is recommended you visit an
INFINITI retailer for this service.

5-68Starting and driving
WAF0307X
When the COAST/SET switch is pushed
under the following conditions, the system
cannot be set and the set vehicle speed
indicator will blink for approximately 2
seconds:
.When traveling below 20 MPH (32
km/h) and the vehicle ahead is not
detected
. When the shift lever is not in the D (Drive)
or manual shift mode
. When the parking brake is applied
. When the brakes are operated by the
driver
When the COAST/SET switch is pushed
under the following conditions, the system
cannot be set. A warning chime will sound and a message
will pop up.
.
“Currently unavailable”:
— When the SNOW mode is selected (SNOW mode switch). (To use the
ICC system, turn off the SNOW mode
switch, push the MAIN switch to turn
off the ICC and reset the ICC switch
by pushing the MAIN switch again.)
For details about the SNOW mode
switch, see “SNOW mode” (P.5-121).
— When the 4WD shift switch is in the 4H or 4L position. (To use the ICC
system, place the 4WD shift switch in
the AUTO position, push the MAIN
switch to turn off the ICC system and
reset the ICC switch by pushing the
MAIN switch again (for 4WD mod-
els))
For details about the 4WD shift
switch, see “INFINITI all-mode
4WD
®” (P.5-111).
— When the VDC system is off. (To use the ICC system, turn on the VDC
system. Push the MAIN switch to
turn off the ICC system and reset the
ICC switch by pushing the MAIN
switch again.)
For details about the VDC system,
see “Vehicle Dynamic Control (VDC)
system” (P.5-124). .
“Not available: Poor Road Conditions”:
— When ABS or VDC (including the traction control system) is operating.
— When a wheel is slipping. (To use the ICC system, make sure the wheels are
no longer slipping. Push the MAIN
switch to turn off the ICC, and reset
the ICC system by pushing the MAIN
switch again.)