2023 INFINITI QX80 maintenance

5 Starting and driving
Precautions when starting and driving ...................... 5-4Exhaust gas (carbon monoxide) .............................. 5-4
Three-way catalyst ..................................................... 5-4
Tire Pressure Monitoring System (TPMS) ........... 5-5
Avoiding collision and rollover ................................. 5-8
On-pavement and off-road
driving precautions ..................................................... 5-8
Off-road recovery ....................................................... 5-9
Rapid air pressure loss ............................................... 5-9
About lowering of the rear of the vehicle ......... 5-10
Drinking alcohol/drugs and driving ..................... 5-10
Driving safety precautions ..................................... 5-10
Push-button ignition switch ........................................ 5-12
Operating range for engine start function ........ 5-12
Push-button ignition switch positions ................ 5-13
Emergency engine shut off .................................... 5-14
Intelligent Key battery discharge .......................... 5-14
Before starting the engine ........................................... 5-15
Starting the engine ......................................................... 5-15 Remote start (if so equipped) ................................ 5-16
Driving the vehicle .......................................................... 5-17 Engine protection mode .......................................... 5-17
Automatic transmission ........................................... 5-18
Parking brake ................................................................... 5-22 Lane Departure Warning (LDW) ............................... 5-22
LDW system operation ......................................... 5-24
How to enable/disable the LDW system ........ 5-24
LDW system limitations ........................................ 5-25
System temporarily unavailable .......................... 5-26
System malfunction ................................................ 5-26
System maintenance .............................................. 5-27
Lane Departure Prevention (LDP) (if
so equipped) .................................................................... 5-27 LDP system operation ........................................... 5-29
How to enable/disable the LDP system ......... 5-30
LDP system limitations ........................................ 5-30
System temporarily unavailable .......................... 5-32
System malfunction ................................................ 5-33
System maintenance .............................................. 5-33
Blind Spot Warning (BSW) ......................................... 5-34
BSW system operation .......................................... 5-35
How to enable/disable the BSW system ......... 5-36
BSW system limitations ........................................ 5-36
BSW driving situations .......................................... 5-37
System temporarily unavailable ......................... 5-40
System malfunction ............................................... 5-40
System maintenance .............................................. 5-41

Blind Spot Intervention®(BSI) (if so equipped) ...... 5-42
BSI system operation ............................................... 5-43
How to enable/disable the BSI system .............. 5-45
BSI system limitations ............................................. 5-45
BSI driving situations ............................................... 5-47
System temporarily unavailable ............................ 5-51
System malfunction .................................................. 5-51
System maintenance ................................................ 5-51
Back-up Collision Intervention (BCI) ......................... 5-53 BCI system operation .............................................. 5-55
How to enable/disable the BCI system ............. 5-58
BCI system precautions ........................................... 5-59
System temporarily unavailable ............................ 5-61
System malfunction .................................................. 5-61
System maintenance ................................................ 5-61
Cruise control (if so equipped) .................................... 5-62
Precautions on cruise control ................................ 5-62
Cruise control operations ....................................... 5-63
Intelligent Cruise Control (ICC) (if so equipped) ..... 5-64 How to select the cruise control mode ............... 5-66
Vehicle-to-vehicle distance control mode ......... 5-66
Conventional (fixed speed) cruise
control mode .............................................................. 5-81
Distance Control Assist (DCA) (if so equipped) ..... 5-85
DCA system operation ........................................... 5-87
How to enable/disable the DCA system .......... 5-90
DCA system display and indicators ..................... 5-91
DCA system limitations ........................................... 5-91 System temporarily unavailable .......................... 5-93
System malfunction ................................................ 5-94
System maintenance .............................................. 5-94
Forward Emergency Braking (FEB) with
Pedestrian Detection system ...................................... 5-95 FEB with Pedestrian Detection
system operation ..................................................... 5-96
Turning the FEB with Pedestrian Detection
system ON/OFF ..................................................... 5-98
FEB with Pedestrian Detection
system limitations ................................................... 5-98
System temporarily unavailable ....................... 5-102
System malfunction ............................................. 5-103
System maintenance ........................................... 5-103
Predictive Forward Collision Warning
(PFCW) ........................................................................\
.. 5-104 PFCW system operation .................................... 5-106
Turning the PFCW system ON/OFF ............. 5-107
PFCW system limitations .................................. 5-109
System temporarily unavailable ....................... 5-110
System malfunction .............................................. 5-111
System maintenance ............................................ 5-111
Driver Attention Alert (DAA) .................................... 5-112 DAA system operation ........................................ 5-113
How to enable/disable the DAA system ....... 5-113
DAA system limitations ....................................... 5-114
System malfunction .............................................. 5-114
Break-in schedule ......................................................... 5-114
Fuel efficient driving tips ........................................... 5-115

Increasing fuel economy ............................................. 5-116
INFINITI all-mode 4WD®(if so equipped) ............ 5-116
INFINITI all-mode 4WD®system ....................... 5-117
4WD shift switch ................................................... 5-120
4WD shift indicator ................................................ 5-121
4WD warning light ................................................. 5-121
Hill Start Assist system ............................................... 5-123
Parking/parking on hills ............................................. 5-124
TOW mode ..................................................................... 5-125
SNOW mode .................................................................. 5-125
Front and rear sonar system ..................................... 5-126
System operation .................................................... 5-127
Sonar function settings ........................................ 5-128
Turning on and off the sonar function ............ 5-130
Sonar limitations ..................................................... 5-131
System temporarily unavailable .......................... 5-132
System maintenance .............................................. 5-132
Power steering .............................................................. 5-132 Brake system ................................................................. 5-133
Braking precautions .............................................. 5-133
Parking brake break-in ........................................ 5-133
Brake assist ................................................................... 5-134
Brake assist ............................................................ 5-134
Anti-lock Braking System (ABS) ...................... 5-134
Vehicle Dynamic Control (VDC) system ................ 5-135 Vehicle Dynamic Control (VDC)
OFF switch ............................................................. 5-137
Cold weather driving ................................................... 5-137 Freeing a frozen door lock ................................. 5-137
Antifreeze ................................................................ 5-137
Battery ..................................................................... 5-137
Draining of coolant water .................................. 5-137
Tire equipment ...................................................... 5-138
Special winter equipment .................................. 5-138
Driving on snow or ice ........................................ 5-138
Engine block heater (if so equipped) .............. 5-138

CAUTION
.Do not use leaded gasoline. Deposits
from leaded gasoline seriously reduce
the three-way catalyst’s ability to
help reduce exhaust pollutants.
. Keep your engine tuned up. Malfunc-
tions in the ignition, fuel injection, or
electrical systems can cause overrich
fuel flow into the three-way catalyst,
causing it to overheat. Do not keep
driving if the engine misfires, or if
noticeable loss of performance or
other unusual operating conditions
are detected. Have the vehicle in-
spected promptly. It is recommended
you visit an INFINITI retailer for this
service.
. Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, damaging
the three-way catalyst.
. Do not race the engine while warming
it up.
. Do not push or tow your vehicle to
start the engine.
TIRE PRESSURE MONITORING
SYSTEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a Tire Pressure Mon-
itoring System (TPMS) that illuminates a low
tire pressure telltale when one or more of
your tires is significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
Please note that the TPMS is not a sub-
stitute for proper tire maintenance, and it is
the driver’s responsibility to maintain correct
tire pressure, even if under-inflation has not
reached the level to trigger illumination of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately one
minute and then remain continuously illumi-
nated. This sequence will continue upon
subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction
indicator is illuminated, the system may not
be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur
for a variety of reasons, including the
installation of replacement or alternate tires
or wheels on the vehicle that prevent the
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on your
vehicle to ensure that the replacement or
alternate tires and wheels allow the TPMS
to continue to function properly.
Additional information
.
Since the spare tire is not equipped with
the TPMS, the TPMS does not monitor
the tire pressure of the spare tire.
. The TPMS will activate only when the
vehicle is driven at speeds above 16
MPH (25 km/h). Also, this system may
Starting and driving5-5

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

SSD0453
SYSTEM MAINTENANCE
The lane camera unitfor the LDW system
is located above the inside mirror.
To keep the proper operation of the LDW
system 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
may adversely affect the camera unit’s
capability of detecting the lane markers. .
Do not strike or damage the areas around
the camera unit. Do not touch the
camera lens or remove the screw located
on the camera unit. If the camera unit is
damaged due to an accident, it is re-
commended that you visit an INFINITI
retailer.
WARNING
Failure to follow the warnings and
instructions for proper use of the LDP
system could result in serious injury or
death.
. The LDP system will not steer the
vehicle or prevent loss of control. It is
the driver’s responsibility to stay
alert, drive safely, keep the vehicle
in the traveling lane, and be in control
of the vehicle at all times.
. The LDP system is primarily intended
for use on well-developed freeways
or highways. It may not detect the
lane markers in certain road, weath-
er, or driving conditions.
Starting and driving5-27
LANE DEPARTURE PREVENTION
(LDP) (if so equipped)

SYSTEM MALFUNCTION
If the LDP system malfunctions, it will cancel
automatically. The LDP indicator (orange)
will illuminates and the “Malfunction” warn-
ing message will appear in the vehicle
information display.
If the LDP indicator (orange) illuminates, pull
off the road to a safe location. Turn the
engine off and restart the engine. If the LDP
indicator (orange) continues to illuminate,
have the LDP system checked. It is recom-
mended that you visit an INFINITI retailer
for this service.
SSD0453
SYSTEM MAINTENANCE
The lane camera unitfor the LDP system
is located above the inside mirror. To keep
the proper operation of the LDP system 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
may adversely affect the camera unit’s
capability of detecting the lane markers. .
Do not strike or damage the areas around
the camera unit. Do not touch the
camera lens or remove the screw located
on the camera unit. If the camera unit is
damaged due to an accident, it is re-
commended that you visit an INFINITI
retailer.
Starting and driving5-33

JVS1146X
SYSTEM MAINTENANCE
The two radar sensorsfor the BSW
system are located near the rear bumper.
Always keep the area near the radar sensors
clean.
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.
Check for and remove objects obstructing
the area around the radar sensors.
Do not attach stickers (including transparent
material), install accessories or apply addi- tional paint near the radar sensors.
Do not strike or damage the area around the
radar sensors.
It is recommended you contact an INFINITI
retailer if the area around the radar sensors
is damaged due to a collision.
Radio frequency statement
For USA:
FCC ID: OAYSRR3B
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interfer- ence received, including interference
that may cause undesired operation.
CAUTION TO USERS
Changes or modifications not expressly
approved by the party responsible for com-
pliance could void the user’s authority to
operate the equipment.
For Canada:
IC: 4135A-SRR3B
This device contains licence-exempt trans-
mitter(s)/receiver(s) that comply with Inno-
vation, Science and Economic Development
Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference,
including interference that may cause un-
desired operation of the device.
Radiofrequency radiation exposure informa-
tion:
This equipment complies with radiation ex-
posure limits set forth for an uncontrolled
environment. This equipment should be in-
stalled and operated with minimum distance
of 20 cm between the radiator and your
body.
Starting and driving5-41