engine INFINITI QX50 2022 Repair Manual

Press theto decrease the rear
temperature.
If front passengers touch the “
SYNC”
key on the Climate screen, the rear tempera-
ture settings will synchronize with the driver’s
and passenger’s side settings.
Heated 2nd row seat switches (if
so equipped)
For additional information, see “Heated 2nd
row seat switches” (P. 2-46).
Heater and air conditioner settings can be
changed on the screen.
1. Press the
MENU button on the
lower display menu.
2. Using the arrow, tab over to the next screen and touch the “Settings” key.
Touch the arrow again to get to the next
screen and touch “Other”.
3. Touch the “CLIMATE” key.
Available setting items may vary depending
on models and specifications. Available settings
•
Use A/C While Idle (if so equipped)
Touch to turn on/off the Idling Stop Prior-
ity mode. While this item is turned on and
the engine is on, the Climate Control will
not be affected by the Idling Stop activa-
tion. Otherwise, when the engine is off by
the Idle Stop function, the Climate Control
System will be able to heat and cool the
cabin.
• Steering Wheel Heater
Touch to turn the steering wheel heater on
and off.
• Auto Steering Wheel Heater
The automatic control mode for the
steering-wheel heating can be turned on
and off. When the item is turned on, the
steering-wheel heating will turn on auto-
matically if the temperature inside the ve-
hicle compartment is low at the time when
the ignition switch is turned on. Regardless
of the temperature, the steering-wheel
heating will turn off after 30 minutes. If
the steering-wheel heater is turned on or
off manually by touching
on the CLI-
MATE screen, the automatic steering-
wheel heating control mode will be can-
celed and will return to the manual mode.
LHA5459
HEATER AND AIR CONDITIONER
SETTINGS (if so equipped)
4-42Monitor, climate, audio, phone and voice recognition systems

When installing a CB, ham radio or car phone
in your vehicle, be sure to observe the follow-
ing precautions; otherwise, the new equip-
ment may adversely affect the engine control
system and other electronic parts.
WARNING
• A cellular phone should not be used for
any purpose while driving so full atten-
tion may be given to vehicle operation.
Some jurisdictions prohibit the use of
cellular phones while driving.
• If you must make a call while your vehicle
is in motion, the hands free cellular phone
operational mode is highly recom-
mended. Exercise extreme caution at all
times so full attention may be given to
vehicle operation.
• If you are unable to devote full attention
to vehicle operation while talking on the
phone, pull off the road to a safe location
and stop your vehicle.
CAUTION
• Keep the antenna as far away as possible
from the electronic control modules.
• Keep the antenna wire more than 8 in
(20 cm) away from the electronic control
system harnesses. Do not route the an-
tenna wire next to any harness.
• Adjust the antenna standing-wave ratio
as recommended by the manufacturer.
• Connect the ground wire from the CB
radio chassis to the body.
• For additional information, it is recom-
mended that you visit an INFINITI re-
tailer for servicing. “Made for iPod”, “Made for iPhone” and
“Made for iPad” mean that an electronic ac-
cessory has been designed to connect spe-
cifically to iPod, iPhone or iPad, respectively,
and has been certified by the developer to
meet Apple performance standards. Apple is
not responsible for the operation of this de-
vice or its compliance with safety and regu-
latory standards. Please note that the use of
this accessory with iPod, iPhone or iPad may
affect wireless performance.
iPad, iPhone, iPod classic, iPod nano, iPod
shuffle and iPod touch are trademarks of
Apple Inc., registered in the U.S. and other
countries. Lightning is a trademark of Apple
Inc.
CAR PHONE OR CB RADIO
iPod®/iPhone®
4-44Monitor, climate, audio, phone and voice recognition systems

5 Starting and driving
Precautions when starting and driving............5-4
Exhaust gas (carbon monoxide) ................5-4
Three-way catalyst ...........................5-4
Tire Pressure Monitoring System (TPMS) ......5-5
On-pavement and off-road driving
precautions ...................................5-8
Avoiding collision and rollover .................5-9
Off-road recovery ............................5-9
Rapid air pressure loss ........................5-9
Drinking alcohol/drugs and driving ...........5-10
Driving safety precautions ...................5-10
Intelligent All-Wheel Drive (AWD) driving
safety precautions (if so equipped) ............5-12
Push-button ignition switch ....................5-13
Operating range ............................ 5-14
Push-button ignition switch positions ........5-14
Emergency engine shut off ...................5-15
INFINITI Intelligent Key battery
discharge .................................... 5-15
INFINITI Vehicle Immobilizer System .........5-16
Before starting the engine ......................5-16
Starting the engine ............................. 5-16
Remote Engine Start (if so equipped) .........5-17
Driving the vehicle ............................. 5-18
Continuously Variable Transmission
(CVT) ....................................... 5-18Electronic parking brake
........................ 5-23
Automatic operation ........................ 5-23
Manual operation ........................... 5-24
When towing a trailer ....................... 5-25
Automatic brake hold .......................... 5-25
How to activate/deactivate the
automatic brake hold function ...............5-26
How to use the automatic brake hold
function .................................... 5-27
INFINITI Drive Mode Selector ..................5-28
Standard mode ............................. 5-29
Sport mode ................................. 5-29
Personal mode .............................. 5-29
ECO mode ................................. 5-30
Traffic Sign Recognition (TSR) (if so equipped) . . 5-30 System operation ........................... 5-31
Turning the Traffic Sign Recognition
(TSR) system on and off .....................5-32
System temporarily unavailable ..............5-32
System
malfunction ......................... 5-32
System maintenance ........................ 5-33
Lane Departure Warning (LDW) ................5-33
LDW system operation ......................5-34
How to enable/disable the LDW system .....5-35
LDW system limitations .....................5-35
System temporarily unavailable ..............5-36

System malfunction........................ 5-107
System maintenance ....................... 5-107
Forward Emergency Braking (FEB) with
Pedestrian Detection system ..................5-108
System operation .......................... 5-109
Turning the FEB with Pedestrian
Detection system on/off ...................5-110
FEB with Pedestrian Detection system
limitations ................................. 5-111
System temporarily unavailable .............5-115
System malfunction ........................ 5-116
System maintenance ....................... 5-117
Predictive Forward Collision Warning (PFCW) . 5-118 PFCW system operation ...................5-120
Turning the PFCW system on/off ..........5-121
PFCW system limitations ...................5-122
System temporarily unavailable .............5-127
System malfunction ........................ 5-128
System maintenance ....................... 5-128
Break-in schedule ............................. 5-130
Fuel efficient driving tips ......................5-130
Increasing fuel economy .......................5-131
Intelligent All-Wheel Drive (AWD)
(if so equipped) ............................... 5-131
Parking/parking on hills .......................5-134Power steering
............................... 5-135
Electric power steering type ................5-135
Direct Adaptive Steering® type .............5-136
Brake system ................................. 5-138
Brake precautions .......................... 5-138
Anti-lock Braking System (ABS) .............5-138
Brake Assist ............................... 5-139
Vehicle Dynamic Control (VDC) system ........5-140
Brake force distribution ....................5-141
Chassis Control ............................... 5-142
Active Trace Control ....................... 5-142
Active Engine Brake ........................ 5-143
Active Ride Control ........................
5-144
Hill

start assist system ........................ 5-145
Front and rear sonar system (if so equipped) . . . 5-146 System operation .......................... 5-147
How to enable/disable the sonar system ....5-149
Sonar limitations ........................... 5-150
System temporarily unavailable .............5-151
System maintenance ....................... 5-151
Cold weather driving .......................... 5-152
Freeing a frozen door lock ..................5-152
Antifreeze ................................. 5-152
Battery .................................... 5-152
Draining of coolant water ..................5-152

WARNING
• Do not leave children or adults who
would normally require the assistance of
others alone in your vehicle. Pets should
also not be left alone. They could acci-
dentally injure themselves or others
through inadvertent operation of the
vehicle. Also, on hot, sunny days, tem-
peratures in a closed vehicle could
quickly become high enough to cause se-
vere or possibly fatal injuries to people or
animals.
• Properly secure all cargo with ropes or
straps 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 per-
sonal injury.
EXHAUST GAS (carbon monoxide)
WARNING
• Do not breathe exhaust gases; they con-
tain colorless and odorless carbon mon-
oxide. Carbon monoxide is dangerous. It
can cause unconsciousness or death. •
If you suspect that exhaust fumes are
entering the vehicle, drive with all win-
dows fully open, and have the vehicle in-
spected 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 rear vent windows, liftgates,
doors and trunk lids (if so equipped)
closed while driving, otherwise exhaust
gases could be drawn into the passenger
compartment. If you must drive with one
of these open, follow these precautions:
1. Open all the windows.
2. Set the
air recirculation button
to off and the fan control dial to high
to circulate the air.
• If electrical wiring or other cable connec-
tions must pass to a trailer through the
seal on the liftgate or the body, follow
the manufacturer's recommendation to
prevent carbon monoxide entry into the
vehicle.
• The exhaust system and body should be
inspected by a qualified mechanic when-
ever:
a. The vehicle is raised for service. b. You suspect that exhaust fumes are
entering into the passenger
compartment.
c. You notice a change in the sound of the exhaust system.
d. You have had an accident involving damage to the exhaust system, un-
derbody, or rear of the vehicle.
THREE-WAY CATALYST
The three-way catalyst is an emission control
device installed in the exhaust system. Ex-
haust 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 ex-
haust system components.
• 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
5-4Starting and driving

CAUTION
• Do not use leaded gasoline. Deposits
from leaded gasoline will seriously re-
duce 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 over rich
fuel flow into the three-way catalyst,
causing it to overheat. Do not keep driv-
ing if the engine misfires, or if noticeable
loss of performance or other unusual op-
erating conditions are detected. Have
the vehicle inspected promptly. It is rec-
ommended that you visit an INFINITI re-
tailer 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 Monitor-
ing System (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly under-inflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check all 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 substitute
for proper tire maintenance, and it is the driv-
er’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 combined
with the low tire pressure telltale. When the
system detects a malfunction, the telltale will
flash for approximately one minute and then
remain continuously illuminated. This se-
quence will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is illumi-
nated, the system may not be able to detect
or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of rea-
sons, including the installation of replace-
ment or alternate tires or wheels on the ve-
hicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunc-
tion telltale after replacing one or more tires
or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels al-
low the TPMS to continue to function
properly.
Starting and driving5-5

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 recom-
mended COLD tire pressure.
Vehicle set-up:
1. Park the vehicle in a safe and level place.
2. Apply the parking brake and press thepark button to engage the P (Park)
position.
3. Place the ignition switch in the ON posi- tion. Do not start the engine.
Operation:
1. Add air to the tire.
2. After a few seconds, the hazard indicators will start flashing.
3. When the designated pressure is reached, the horn beeps once and the hazard indi-
cators stop flashing.
4. Perform the above steps for each tire. • If the tire is over-inflated more than ap-proximately 4 psi (30 kPa), the horn
beeps and the hazard indicators flash
three 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 pres-
sure, the horn beeps once.
• If the hazard indicator does not flash within approximately 15 seconds after
starting to inflate the tire, it indicates
that the TPMS with Tire Inflation Indi-
cator is not operating.
• The TPMS will not activate the TPMS with Tire Inflation Indicator under the
following conditions:– If there is interference from an exter- nal device or transmitter.
– The air pressure from the inflation de- vice is not sufficient to inflate the tire.
– There is a malfunction in the TPMS.
– There is a malfunction in the horn or hazard indicators.
– The identification code of the tire pressure sensor is not registered to
the system.
– The battery of the tire pressure sensor is low.
• If the TPMS with Tire Inflation Indicator does not operate due to TPMS interfer-
ence, move the vehicle about1m(3ft)
backward or forward and try again.
If the TPMS with Tire Inflation Indicator is
not working, use a tire pressure gauge.
ON-PAVEMENT AND OFF-ROAD
DRIVING PRECAUTIONS
Utility vehicles have a significantly higher
rollover rate than other types of vehicles.
They have higher ground clearance than pas-
senger cars to make them capable of per-
forming in a variety of on-pavement and off-
road applications. This gives them a higher
center of gravity than ordinary vehicles. An
advantage of higher ground clearance is a
better view of the road, allowing you to an-
ticipate problems. However, they are not de-
signed for cornering at the same speeds as
conventional 2-Wheel Drive vehicles any
more than low-slung sports cars are de-
signed to perform satisfactorily under off-
road conditions. If at all possible, avoid sharp
turns at high speeds. As with other vehicles of
this type, failure to operate this vehicle cor-
rectly may result in loss of control or vehicle
rollover.
In a rollover crash, an unbelted person is sig-
nificantly more likely to die than a person
wearing a seat belt.
For additional information, see “Driving
safety precautions” (P. 5-10).
5-8Starting and driving

•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 gears 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) gear and apply brakes to con-
trol your speed. •
Heavy braking going down a hill could
cause your brakes to overheat and fade,
resulting in loss of control and an acci-
dent. Apply brakes lightly and use a low
gear to control your speed.
• Unsecured cargo can be thrown around
when driving over rough terrain. Prop-
erly secure all cargo so it will not be
thrown forward and cause injury to you
or your passengers.
• 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. Instead 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 become hot. •
Lower your speed when encountering
strong crosswinds. With a higher center
of gravity, your INFINITI is more af-
fected by strong side winds. Slower
speeds ensure better vehicle control.
• Do not drive beyond the performance ca-
pability of the tires, even with AWD
engaged.
• For AWD equipped vehicles, do not at-
tempt 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 an AWD
equipped vehicle on a 2-wheel dyna-
mometer (such as the dynamometers
used by some states for emissions test-
ing) or similar equipment even if the
other two wheels are raised off the
ground. Make sure you inform test facil-
ity personnel that your vehicle is
equipped with AWD before it is placed
on a dynamometer. Using the wrong test
equipment may result in drivetrain dam-
age or unexpected vehicle movement
which could result in serious vehicle dam-
age or personal injury.
Starting and driving5-11

•When a wheel is off the ground due to an
unlevel surface, do not spin the wheel
excessively.
• Accelerating quickly, sharp steering ma-
neuvers or sudden braking may cause
loss of control.
• If at all possible, avoid sharp turning ma-
neuvers, particularly at high speeds.
Your INFINITI vehicle has a higher center
of gravity than a passenger car. The ve-
hicle is not designed for cornering at the
same speeds as passenger cars. Failure
to operate this vehicle correctly could re-
sult in loss of control 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 front
wheels when driving on slippery roads
and drive carefully.
• Be sure to check the brakes immediately
after driving in mud or water. For addi-
tional information, see “Brake precau-
tions” (P. 5-138).
• Avoid parking your vehicle on steep hills.
If you get out of the vehicle and it rolls
forward, backward or sideways, 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. For additional information, see
“Additional maintenance items for se-
vere operating conditions” (P. 9-7).
INTELLIGENT ALL-WHEEL
DRIVE (AWD) DRIVING SAFETY
PRECAUTIONS (if so equipped)
WARNING
• Replacing tires with those not originally
specified by INFINITI could affect the
proper operation of the TPMS.
• 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 front
wheels when driving on slippery roads
and drive carefully.
• This vehicle is not designed for off-road
(rough road) use. Do not drive on sandy
or muddy roads that tires may get stuck
in. •
For AWD equipped vehicles, do not at-
tempt to raise two wheels off the ground
and shift the transmission to any D
(Drive) or R (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 an AWD
equipped vehicle on a 2-wheel dyna-
mometer (such as the dynamometers
used by some states for emissions test-
ing) or similar equipment even if the
other two wheels are raised off the
ground. Make sure you inform test facil-
ity personnel that your vehicle is
equipped with AWD before it is placed
on a dynamometer. Using the wrong test
equipment may result in drivetrain dam-
age or unexpected vehicle movement
which could result in serious vehicle dam-
age or personal injury.
• When a wheel is off the ground due to an
unlevel surface, do not spin the wheel
excessively.
5-12Starting and driving

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 three con-
secutive times in quick succession 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.
When the ignition switch is pushed without
depressing the brake pedal, the ignition
switch will change as follows:
Push the ignition switch center:
• Once to change to ON.
• Two times to change to OFF.
The ignition switch will automatically return
to the LOCK position when any door is either
opened or closed with the switch in the OFF
position.
The ignition lock is designed so that the igni-
tion switch cannot be placed in the OFF po-
sition until the shift position is in the P (Park)
position. When the ignition switch cannot be placed in
the OFF position, proceed as follows:
1. Press the Park button to place the vehicle
in the P (Park) position.
2. Push the ignition switch. The ignition switch position will change to the ON
position.
3. Push the ignition switch again to the OFF position.
The shift position can be shifted from the P
(Park) position if the ignition switch is in the
ON position and the brake pedal is
depressed.
If the battery of the vehicle is discharged, the
ignition switch cannot be moved from the
LOCK position.
Some indicators and warnings for operation
are displayed on the vehicle information dis-
play. For additional information, see “Vehicle
information display” (P. 2-19).
LSD2911
PUSH-BUTTON IGNITION SWITCH
Starting and driving5-13