2023 INFINITI QX80 parking brake

SONAR SYSTEM LIMITATIONS
WARNING
Listed below are the system limitations
for the sonar function. Failure to operate
the vehicle in accordance with these
system limitations could result in serious
injury or death.
.Inclement weather or ultrasonic
sources such as an automatic car
wash, a truck’s compressed-air
brakes or a pneumatic drill may affect
the function of the system, including
reduced performance or a false acti-
vation.
. The system is not designed to pre-
vent contact with small or moving
objects.
. The system will not detect small
objects below the bumper, and may
not detect objects close to the bum-
per or on the ground.
. The system may not detect the
following objects:
— Fluffy objects such as snow, cloth, cotton, grass or wool.
— Thin objects such as rope, wire or chain. — Wedge-shaped objects.
. If your vehicle sustains damage to the
bumper fascia, leaving it misaligned
or bent, the sensing zone may be
altered causing inaccurate measure-
ment of objects or false alarms.
CAUTION
Excessive noise (such as audio system
volume or an open vehicle window) will
interfere with the tone and it may not be
heard.
See “Front and rear sonar system” (P.5-126)
for more information on the sonar system
and limitations.
System temporarily unavailable
When the amber markers are displayed at
the corners of the vehicle icon and the
function cannot be activated from the
Parking sonar settings menu (the setting
items are grayed out), the sonar system may
be malfunctioning.
SYSTEM MAINTENANCE
CAUTION
Keep the surface of the sonar (located on
the front and rear bumper fascia) free
from accumulations of snow, ice and dirt.
Do not scratch the surface of the sonar
when cleaning. If the sensors are cov-
ered, the accuracy of the sonar function
will be diminished.
Monitor, climate, audio, phone and voice recognition systems4-21

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

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

cause a malfunction of the tire pres-
sure sensors.
CAUTION
.The TPMS may not function properly
when the wheels are equipped with
tire chains or the wheels are buried in
snow.
. Do not place metalized film or any
metal parts (antenna, etc.) on the
windows. This may cause poor recep-
tion of the signals from the tire
pressure sensors, and the TPMS will
not function properly.
Some devices and transmitters may tem-
porarily interfere with the operation of the
TPMS and cause the low tire pressure
warning light to illuminate. Some examples
are:
. Facilities or electric devices using similar
radio frequencies are near the vehicle.
. If a transmitter set to similar frequencies
is being used in or near the vehicle.
. If a computer (or similar equipment) or a
DC/AC converter is being used in or near
the vehicle.
Low tire pressure warning light may illumi- nate in the following cases.
.
If the vehicle is equipped with a wheel
and tire without TPMS.
. If the TPMS has been replaced and the ID
has not been registered.
. If the wheel is not originally specified by
INFINITI.
FCC Notice:
For USA:
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 interference
received, including interference that may
cause undesired operation.
Note: Changes or modifications not ex-
pressly approved by the party responsible
for compliance could void the user’s author-
ity to operate the equipment.
For Canada:
This device contains licence-exempt trans-
mitter(s)/receiver(s) that comply with In-
novation, Science and Economic
Development Canada’s licence-exempt
RSS(s). Operation is subject to the follow-
ing two conditions: (1) This device may not
cause interference. (2) This device must
accept any interference, including interfer-
ence that may cause undesired operation of the device.
TPMS with Tire Inflation Indicator
When adding air to an under-inflated tire,
the TPMS with Tire Inflation Indicator
provides visual and audible signals outside
the vehicle to help you inflate the tires to the
recommended COLD tire pressure.
Vehicle set-up:
1. Park the vehicle in a safe and level place.
2. Apply the parking brake and place the
shift lever in the P (Park) position.
3. Place the ignition switch in the ON position. Do not start the engine.
Operation:
1. Add air to the tire.
2. After a few seconds, the hazard indica- tors will start flashing.
3. When the designated pressure is reached, the horn beeps once and the
hazard indicators stop flashing.
4. Perform the above steps for each tire.
. If the tire is over-inflated more than
approximately 4 psi (30 kPa), the horn
beeps and the hazard indicators flash 3
times. To correct the pressure, push the
core of the valve stem on the tire briefly
to release pressure. When the pressure
reaches the designated pressure, the
Starting and driving5-7

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.5-133) for
wet brakes.
. Avoid parking your vehicle on steep
hills. If you get out of the vehicle and
Starting and driving5-11

SSD1021
When the ignition switch is pushed without
depressing the brake pedal, the ignition
switch position will change as follows:
.Push center once to change to ACC.
. Push center two times to change to ON.
. Push center three times to change to
OFF. (No position illuminates.)
. Push center four times to return to ACC.
. Open or close any door to return to
LOCK during the OFF position.
The ignition lock is designed so that the
ignition switch position cannot be switched
to LOCK until the shift lever is moved to the
P (Park) position.
When the ignition switch cannot be pushed
toward the LOCK position, proceed as follows:
1. Move the shift lever into the P (Park)
position.
2. Push the ignition switch to the OFF position. The ignition switch position
indicator will not illuminate.
3. Open the door. The ignition switch will change to the LOCK position.
The shift lever can be moved from the P
(Park) position if the ignition switch is in the
ON position and the brake pedal is de-
pressed.
If the battery of the vehicle is discharged,
the push-button ignition switch cannot be
turned from the LOCK position.
Some indicators and warnings for operation
are displayed on the vehicle information
display between the speedometer and tach-
ometer. (See “Vehicle information display”
(P.2-20).)
PUSH-BUTTON IGNITION
SWITCH POSITIONS
LOCK (Normal parking position)
The ignition switch can only be locked in this
position.
The ignition switch will be unlocked when it
is pushed to the ACC position while carrying
the Intelligent Key.
ACC (Accessories)
This position activates electrical accessories
such as the radio, when the engine is not
running.
ACC has a battery saver feature that will
turn the ignition switch to the OFF position
after a period of time under the following
conditions:
. all doors are closed.
. shift lever is in P (Park).
. turn signal/hazard indicator lights are
not flashing.
The battery saver feature will be cancelled if
any of the following occur:
. any door is opened.
. shift lever is moved out of P (Park).
. ignition switch changes position.
ON (Normal operating position)
This position turns on the ignition system
and electrical accessories.
ON has a battery saver feature that will turn
the ignition switch to the OFF position, if the
vehicle is not running, after some time under
the following conditions:
.all doors are closed.
. shift lever is in P (Park).
. turn signal/hazard indicator lights are
not flashing.
Starting and driving5-13

the brake pedal within 10 seconds after
the chime sounds. The engine will start.
After step 3 is performed, when the ignition
switch is pushed without depressing the
brake pedal, the ignition switch position will
change to ACC.
NOTE:
. When the ignition switch is pushed to
the ACC or ON position or the engine is
started by the above procedures, the
“Key Battery Low” message appears on
the vehicle information display even if
the Intelligent Key is inside the vehicle.
This is not a malfunction. To turn off the
Intelligent Key battery discharge indi-
cator, touch the ignition switch with the
Intelligent Key again.
. If the “Key Battery Low” message
appears, replace the battery as soon as
possible. (See “Battery” (P.8-11).) .
Make sure the area around the vehicle is
clear.
. Check fluid levels such as engine oil,
coolant, brake fluid and window washer
fluid as frequently as possible, or at least
whenever you refuel.
. Check that all windows and lights are
clean.
. Visually inspect tires for their appearance
and condition. Also check tires for proper
inflation.
. Lock all doors.
. Position seat and adjust head restraints/
headrests.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passengers
to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to the
ON position. (See “Warning lights, in-
dicator lights and audible reminders”
(P.2-11).)1. Apply the parking brake.
2. Move the shift lever to the P (Park) or N
(Neutral) position. (P is recommended.)
The starter is designed not to operate
unless the shift lever is in either of the
above positions.
3. Push the ignition switch to the ON position. Firmly depress the brake pedal
and push the ignition switch to start the
engine.
To start the engine immediately, push
and release the ignition switch while
depressing the brake pedal with the
ignition switch in any position.
.If the engine is very hard to start inextremely cold weather or when re-
starting, depress the accelerator ped-
al a little (approximately 1/3 to the
floor) and while holding, crank the
engine. Release the accelerator pedal
when the engine starts.
.If the engine is very hard to start
because it is flooded, depress the
accelerator pedal all the way to the
floor and hold it. Push the ignition
switch to the ON position to start
cranking the engine. After 5 or 6
seconds, stop cranking by pushing
the ignition switch to OFF. After
cranking the engine, release the accel-
erator pedal. Crank the engine with
Starting and driving5-15
BEFORE STARTING THE ENGINE STARTING THE ENGINE

5-18Starting and driving
AUTOMATIC TRANSMISSION
7 speed automatic transmission
The automatic transmission in your vehicle is
electronically controlled by a transmission
control module to produce maximum effi-
ciency and smooth operation.
Shown on the following pages are the
recommended operating procedures for this
transmission. Follow these procedures for
maximum vehicle performance and driving
enjoyment.
Starting the vehicle
After starting the engine, fully depress the
foot brake pedal and push the shift lever
button before shifting the shift lever to the R
(Reverse), N (Neutral), D (Drive) or Manual
shift mode position. Be sure the vehicle is
fully stopped before attempting to shift the
shift lever.
This automatic transmission model is de-
signed so that the foot brake pedal must be
depressed before shifting from P (Park) to
any drive position while the ignition switch
position is ON.
The shift lever cannot be moved out of the P
(Park) position and into any of the other
gear positions if the ignition switch is
pushed to the LOCK, OFF or ACC position.1. Keep the foot brake pedal depressed and
push the shift lever button to shift into a
driving gear.
2. Release the parking brake and foot brake, then gradually start the vehicle in
motion.
WARNING
.Do not depress the accelerator pedal
while shifting from P (Park) or N
(Neutral) to R (Reverse), D (Drive) or
manual shift mode. Always depress
the brake pedal until shifting is
completed. Failure to do so could
cause you to lose control and have
an accident.
. Cold engine idle speed is high, so use
caution when shifting into a forward
or reverse gear before the engine has
warmed up.
. Never shift to either P (Park) or R
(Reverse) position while the vehicle is
moving forward and P (Park) or D
(Drive) position while the vehicle is
moving reversing. This could cause an
accident or damage the transmission.
. Do not downshift abruptly on slip-
pery roads. This may cause a loss of
control.
CAUTION
.To avoid possible damage to your
vehicle; when stopping the vehicle on
an uphill grade, do not hold the
vehicle by depressing the accelerator
pedal. The foot brake should be used
for this purpose.
. Except in an emergency, do not shift
to the N (Neutral) position while
driving. Coasting with the transmis-
sion in the N (Neutral) position may
cause serious damage to the trans-
mission.