2021 INFINITI QX50 engine

The vehicle is equipped with a shark fin an-
tenna and an antenna pattern is printed in-
side the rear window.
CAUTION
• Do not place metalized film near the rear
window glass or attach any metal parts to
it. This may cause poor reception or noise.
•When cleaning the inside of the rear win-
dow, be careful not to scratch or damage
the rear window antenna. Lightly wipe
along the antenna with a dampened soft
cloth. 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.
LHA4565
2nd row
ANTENNA CAR PHONE OR CB RADIO
Monitor, climate, audio, phone and voice recognition systems4-43

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 .................5-8
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) . . 5-32 System operation ........................... 5-33
Turning the Traffic Sign Recognition
(TSR) system on and off .....................5-34
System temporarily unavailable ..............5-34
System
malfunction ......................... 5-34
System maintenance ........................ 5-34
Lane Departure Warning (LDW) ................5-35
LDW system operation ......................5-36
How to enable/disable the LDW system .....5-37
LDW system limitations .....................5-37
System temporarily unavailable ..............5-38

DCA driving situations.....................5-114
System temporarily unavailable .............5-115
System maintenance ....................... 5-117
Rear Automatic Braking (RAB) .................5-118
RAB system operation .....................5-119
Turning the RAB system on/off ............5-120
RAB system limitations .....................5-120
System malfunction ........................ 5-122
System maintenance ....................... 5-122
Forward Emergency Braking (FEB) with
Pedestrian Detection system ..................5-123
System operation .......................... 5-124
Turning the FEB with Pedestrian
Detection system on/off ...................5-126
FEB with Pedestrian Detection system
limitations ................................. 5-127
System temporarily unavailable .............5-130
System malfunction ........................ 5-131
System maintenance ....................... 5-132
Predictive Forward Collision Warning
(PFCW) ...................................... 5-133
PFCW system operation ...................5-135
Turning the PFCW system on/off ..........5-136
PFCW system limitations ...................5-137
System temporarily unavailable .............5-142 System malfunction
........................ 5-143
System maintenance ....................... 5-143
Break-in schedule ............................. 5-144
Fuel efficient driving tips ......................5-144
Increasing fuel economy .......................5-145
Intelligent All-Wheel Drive (AWD)
(if so equipped) ............................... 5-146
Parking/parking on hills .......................5-148
Power steering ............................... 5-149
Electric power steering type ................5-149
Direct Adaptive Steering® type .............5-150
Brake system ................................. 5-152
Brake precautions ..........................
5-152
Anti-lock

Braking System (ABS) .............5-152
Brake Assist ............................... 5-153
Vehicle Dynamic Control (VDC) system ........5-154
Brake force distribution ....................5-155
Chassis Control ............................... 5-156
Active Trace Control ....................... 5-156
Active Engine Brake ........................ 5-157
Active Ride Control ........................ 5-158
Hill start assist system ........................ 5-159
Front and rear sonar system (if so equipped) . . . 5-160 System operation .......................... 5-160

How to enable/disable the sonar system....5-162
Sonar limitations ........................... 5-163
System temporarily unavailable .............5-164
System maintenance ....................... 5-164
Cold weather driving .......................... 5-165
Freeing a frozen door lock ..................5-165
Antifreeze ................................. 5-165
Battery .................................... 5-165
Draining of coolant water ..................5-165Tire equipment
............................. 5-165
Special winter equipment ...................5-166
Driving on snow or ice ...................... 5-166
Engine block heater (if so equipped) .........5-166
Active noise cancellation/Active sound
enhancement ................................. 5-167
Active noise cancellation ...................5-167
Active sound enhancement .................5-168

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

•When replacing a wheel without the
TPMS such as the spare tire, when a
spare tire is mounted or a wheel is re-
placed, tire pressure will not be indi-
cated, the TPMS will not function and
the low tire pressure warning light will
flash for approximately 1 minute. The
light will remain on after 1 minute. Have
your tires replaced and/or TPMS system
reset as soon as possible. It is recom-
mended that you visit an INFINITI re-
tailer for this service.
• Replacing tires with those not originally
specified by INFINITI could affect the
proper operation of the TPMS.
• Do not inject any tire liquid or aerosol tire
sealant into the tires, as this may cause a
malfunction of the tire pressure 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 reception of the sig-
nals from the tire pressure sensors, and
the TPMS will not function properly. Some devices and transmitters may tempo-
rarily interfere with the operation of the
TPMS and cause the low tire pressure warn-
ing 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.
The low tire pressure warning light may illu-
minate 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 de-
vice must accept any interference received,
including interference that may cause unde-
sired 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 complies with Industry Canada
licence-exempt RSS standard(s). Operation
is subject to the following two conditions: (1)
this device may not cause interference, and
(2) this device must accept any interference,
including interference that may cause unde-
sired 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 recom-
mended 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 posi- tion. Do not start the engine.
Starting and driving5-7

•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.
• 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.
Starting and driving5-11