2023 INFINITI QX50 check engine

Backing up behind a projecting
object
The positionOCis shown farther than the
position
OBin the display. However, the po-
sition
OCis actually at the same distance as
the position
OA. The vehicle may hit the object when backing up to the position
OAif the
object projects over the actual backing up
course.
HOW TO PARK WITH
PREDICTED COURSE LINES
WARNING
• If the tires are replaced with different
sized tires, the predicted course lines
may be displayed incorrectly.
• On a snow-covered or slippery road,
there may be a difference between the
predicted course line and the actual
course line.
•
If the battery is disconnected or becomes
discharged, the predicted course lines may
be displayed incorrectly. If this occurs,
please perform the following procedures:
– Turn the steering wheel from lock to
lock while the engine is running.
– Drive the vehicle on a straight road
for more than 5 minutes.
• When the steering wheel is turned with
the ignition switch in the ON position,
the predicted course lines may be dis-
played incorrectly. 1. Visually check that the parking space is
safe before parking your vehicle.
2. The rear view of the vehicle is displayed on the screen
OAwhen the shift lever is
moved to the R (Reverse) position. When
activating the RearView Monitor, the
guide lines, the icons and the messages
may not be displayed immediately.
LHA5289LHA5043
Monitor, climate, audio, phone and voice recognition systems4-7

when backing up to the positionOAif the
object projects over the actual backing up
course.
HOW TO PARK WITH
PREDICTED COURSE LINES
WARNING
• If the tires are replaced with different
sized tires, the predicted course lines
may be displayed incorrectly.
• On a snow-covered or slippery road,
there may be a difference between the
predicted course line and the actual
course line.
•
If the battery is disconnected or becomes
discharged, the predicted course lines may
be displayed incorrectly. If this occurs,
please perform the following procedures:
– Turn the steering wheel from lock to
lock while the engine is running.
– Drive the vehicle on a straight road
for more than 5 minutes.
• When the steering wheel is turned with
the ignition switch in the ON position,
the predicted course lines may be dis-
played incorrectly. 1. Visually check that the parking space is
safe before parking your vehicle.
2. The rear view of the vehicle is displayed on the screen
OAwhen the shift lever is
moved to the R (Reverse) position. When
activating the Around View® Monitor, the
guide lines, the icons and the messages
may not be displayed immediately. 3. Slowly back up the vehicle adjusting the
steering wheel so that the predicted
course linesOBenter the parking space
OC.
LHA5043LHA4770
Monitor, climate, audio, phone and voice recognition systems4-19

•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.
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
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 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
allow the TPMS to continue to function
properly.
Starting and driving5-5

•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. 5-140).
• 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

INFINITI VEHICLE IMMOBILIZER
SYSTEM
The INFINITI Vehicle Immobilizer System will
not allow the engine to start without the use
of the registered key.
If the engine fails to start using the registered
key, it may be due to interference caused by
another registered key, an automated toll
road device or automated payment device on
the key ring. Restart the engine using the
following procedures:
1. Leave the ignition switch in the ON posi-tion for approximately 5 seconds.
2. Place the ignition switch in the OFF or LOCK position and wait approximately
5 seconds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the de- vice (which may have caused the interfer-
ence) separate from the registered key.
If the no start condition re-occurs, INFINITI
recommends placing the registered key on a
separate key ring to avoid interference from
other devices. • Make sure the area around the vehicle is
clear.
• Check fluid levels such as engine oil, cool- ant, brake fluid, and windshield-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.
• Check that all doors are closed.
• 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 placed in the ON
position. For additional information, see
“Warning lights, indicator lights and audible
reminders” (P. 2-9) 1. Apply the parking brake.
2. Press the Park button to place the vehicle
in P (Park) or move the shift lever to N
(Neutral). P (Park) is recommended.
The starter is designed not to operate if
the shift lever is in any of the driving
positions.
3. Push the ignition switch to the ON posi- tion. 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 depress-
ing the brake pedal with the ignition
switch in any position.
• If the engine is very hard to start in extremely cold weather or when re-
starting, depress the accelerator pedal a
little (approximately 1/3 to the floor)
and while holding, crank the engine. Re-
lease the accelerator pedal when the
engine starts.
• If the engine is very hard to start be- cause it is flooded, depress the accel-
erator pedal all the way to the floor and
hold it. Push the ignition switch to the
ON position to start cranking the en-
gine. After 5 or 6 seconds, stop cranking
by pushing the ignition switch to the
BEFORE STARTING THE ENGINE STARTING THE ENGINE
5-16Starting and driving

CAUTION
• Use the P (Park), R (Reverse) or D (Drive)
position only when the vehicle is com-
pletely stopped.
• When switching to the desired shift po-
sition by operating the shift lever, check
that the shift lever returns to the home
position by releasing your hand from the
lever. Holding the shift lever in a mid-
way position may also damage the shift
control system.
• Do not operate the shift lever while the
accelerator pedal is depressed. This may
cause a sudden start which could result in
an accident.
• The following operations are not allowed
because excessive force would be ap-
plied to the transmission and this may
result in damage to the vehicle:
– Moving the shift lever to the R (Re- verse) position when driving forward
– Moving the shift lever to the D (Drive) position when reversing
If the vehicle is moving over 8 km/h (5mph)
when shifting to D (Drive) from R (Re-
verse), the N (Neutral) position will auto-
matically be selected. A buzzer will sound,
noting that D (Drive) was not selected. When selecting D (Drive) while reversing
below 8 km/h (5 mph) the range will
change normally.
If these operations are attempted, a chime
sounds and the vehicle shifts to the N (Neu-
tral) position.
P (Park)
CAUTION
• To prevent transmission damage, use the
P (Park) position only when the vehicle is
completely stopped.
• Do not slide the shift lever while pressing
the park button. This may damage the
shift control system.
Use the P (Park) position when the vehicle is
parked or when starting the engine. Make
sure the vehicle is completely stopped before
pressing the park button to engage the P
(Park) position. For maximum safety, the
brake pedal must be depressed before en-
gaging the P (Park) position. Use this position
together with the electronic parking brake.
When parking on a hill, first depress the brake
pedal, apply the electronic parking brake and
then engage the P (Park) position. The park-
ing lock should not be used as a brake when parking. In order to secure the vehicle, always
apply the electronic parking brake in addition
to the parking lock.
In the event of a malfunction of the vehicle’s
electronics, the transmission may lock in the
P (Park) position. Have the vehicle’s electron-
ics checked immediately. It is recommended
that you visit an INFINITI retailer for this
service.
The P (Park) position is automatically en-
gaged if:
• You place the ignition switch in the OFF
position
• You unfasten the driver’s seat belt and open the driver side door when the vehicle
is stationary or driving at very low speed
and the transmission is in the D (Drive)
position, the N (Neutral) position, the R
(Reverse) position, or the M (Manual)
position.
CAUTION
To avoid CVT malfunction, you must
manually place the shift position in the P
(Park) position under the above conditions.
5-20Starting and driving

If the vehicle is driven under extreme condi-
tions, such as excessive wheel spinning and
subsequent hard braking, the fail-safe sys-
tem may be activated. The Malfunction Indi-
cator Light (MIL) may come on to indicate
the fail-safe mode is activated. For addi-
tional information, see “Malfunction Indica-
tor Light (MIL)” (P. 2-15). This will occur
even if all electrical circuits are functioning
properly. In this case, place the ignition
switch in the OFF position and wait for
10 seconds. Then place the ignition switch
back in the ON position. The vehicle should
return to its normal operating condition. If it
does not return to its normal operating con-
dition, have the transmission checked and re-
paired, if necessary. It is recommended that
you visit an INFINITI retailer for this service.
WARNING
When the high fluid temperature protec-
tion mode or fail-safe operation occurs, ve-
hicle speed may be gradually reduced. The
reduced speed may be lower than other
traffic, which could increase the chance of
a collision. Be especially careful when driv-
ing. If necessary, pull to the side of the road
at a safe place and allow the transmission
to return to normal operation, or have it
repaired if necessary.
WARNING
• Be sure the parking brake is fully re-
leased before driving. Failure to do so
can cause brake failure and lead to an
accident.
• Do not release the parking brake from
outside the vehicle.
• Do not use the shift lever in place of the
parking brake. When parking, be sure the
parking brake is fully engaged. •
To help avoid risk of injury or death
through unintended operation of the ve-
hicle and/or its systems, do not leave
children, people who require the assis-
tance of others or pets unattended in
your vehicle. Additionally, the tempera-
ture inside a closed vehicle on a warm day
can quickly become high enough to cause
a significant risk of injury or death to
people and pets.
The electronic parking brake can be applied
or released automatically or by operating the
parking brake switch.
AUTOMATIC OPERATION
The electronic parking brake is automatically
released as soon as the vehicle starts and the
accelerator pedal is depressed.
The driver’s seat belt needs to be fastened.
WARNING
• The electronic parking brake will not be
automatically applied when the engine is
stopped without using the ignition
switch (for example, by engine stalling).
Without the vehicle stationary, the elec-
tronic parking brake will not be auto-
matically applied even if the engine is
turned off with the ignition switch.
LSD2915
ELECTRONIC PARKING BRAKE
5-24Starting and driving

•Before leaving the vehicle, press the Park
button to place the vehicle in the P (Park)
position and check that the electronic
parking brake indicator light is illumi-
nated to confirm that the electronic
parking brake is applied. The electronic
parking brake indicator light will remain
on for a period of time after the driver’s
door is locked.
CAUTION
When parking in an area where the outside
temperature is below 32°F (0°C), the park-
ing brake, if applied, may freeze in place
and may be difficult to release.
For safe parking, it is recommended that
you place the shift position in the P (Park)
position and securely block the wheels.
NOTE:
• If a malfunction occurs in the electronic parking brake system (for example, due to
battery discharge), it is recommended that
you visit an INFINITI retailer. • Under the following conditions the elec-
tronic parking brake will automatically be
applied and the braking force of the auto-
matic brake hold will be released:
– The braking force is applied by the auto- matic brake hold function for 3 minutes
or longer.
– The vehicle is in the P (Park) position.
– The electronic parking brake is applied manually.
– The driver’s seat belt is unfastened.
– The driver’s door is opened.
– The ignition switch is placed in the OFF position.
– A malfunction occurs in the automatic brake hold function.
MANUAL OPERATION
The electronic parking brake will not be auto-
matically applied if the engine is stopped
without using the ignition switch (for ex-
ample, by engine stalling). In such a case, you
have to apply the parking brake manually.
To apply: Pull the switch up
O1. The indicator
light
OAwill illuminate.
To release: With the ignition switch in the ON
position, depress the brake pedal and push
the switch down
O2. The indicator lightOAwill turn off. Before driving, check that the electronic
parking brake indicator light (red) (if so
equipped)
orgoes out. For addi-
tional information, see “Warning lights, indi-
cator lights and audible reminders” (P. 2-9).
NOTE:
• A buzzer will sound if the vehicle is driven without releasing the parking brake. For
additional information, see “Warning
lights, indicator lights and audible remind-
ers” (P. 2-9).
• While the electronic parking brake is ap- plied or released, an operating sound is
heard from the lower side of the rear seat.
This is normal and does not indicate a
malfunction.
• When the electronic parking brake is fre- quently applied and released in a short pe-
riod of time, the parking brake may not
operate in order to prevent the parking
brake system from overheating. If this oc-
curs, operate the electronic parking brake
switch again after waiting approximately
1 minute.
• If the electronic parking brake must be ap- plied while driving in an emergency, pull up
and hold the parking brake switch. When
you release the parking brake switch, the
parking brake will be released.
Starting and driving5-25