check engine INFINITI QX50 2023 Service Manual

• While pulling up the electronic parkingbrake switch during driving, the parking
brake is applied and a chime sounds. The
electronic parking brake indicator light
(red) in the meter and in the parking brake
switch illuminates. This does not indicate a
malfunction. The electronic parking brake
indicator light (red) in the meter and in the
parking brake switch turns off when the
parking brake is released.
• When pulling the electronic parking brake switch up with the ignition switch in the
OFF or AUTO ACC position, the parking
brake switch indicator light will continue
to illuminate for a short period of time.
WHEN TOWING A TRAILER
Depending on the weight of the vehicle and
trailer and the steepness of the slope, there
may be a tendency for the vehicle to move
backwards when starting from a standstill.
When this occurs, you can use the parking
brake switch in the same way as a conven-
tional lever type parking brake.
Before starting on sloping roads when tow-
ing a trailer, be sure to read the following to
prevent the vehicle from moving backwards
unintentionally.
• Release the parking brake switch as soonas the engine is delivering enough torque to
the wheels. The automatic brake hold function maintains
the braking force without the driver having to
depress the brake pedal when the vehicle is
stopped at a traffic light or intersection. As
soon as the driver depresses the accelerator
pedal again, the automatic brake hold func-
tion is deactivated and the braking force is
released. The operating status of automatic
brake hold can be displayed.
To use the automatic brake hold function, the
following conditions need to be met:
• The driver’s seat belt is fastened.
• The electronic parking brake is released.
• The vehicle is not in the P (Park) position.
• The vehicle is not parked on a steep hill.WARNING
• The automatic brake hold function is not
designed to hold the vehicle on a steep
hill or slippery road. Never use the auto-
matic brake hold when the vehicle is
stopped on a steep hill or slippery road.
Failure to do so may cause the vehicle to
move.
• Warnings may appear to request that
the driver retake control by depressing
the brake pedal. •
When the automatic brake hold function
is activated but fails to maintain the ve-
hicle at a standstill, depress the brake
pedal to stop the vehicle. If the vehicle
unexpectedly moves due to outside con-
ditions, the chime may sound and warn-
ings may appear.
• Be sure to deactivate the automatic
brake hold function when using a car
wash or towing your vehicle.
• Make sure to push the park button to
shift to the P (Park) position and apply
the parking brake when parking your ve-
hicle, entering or exiting the vehicle, or
loading luggage. Failure to do so could
cause the vehicle to move or roll away
unexpectedly and result in serious per-
sonal injury or property damage.
WARNING
• If any of the following conditions occur,
the automatic brake hold function may
not function. Have the system checked
promptly. It is recommended that you
visit an INFINITI retailer for this service.
– A warning message appears.
– The indicator light on the automatic
brake hold switch does not illuminate
when the switch is pushed.
AUTOMATIC BRAKE HOLD
5-26Starting and driving

Automatic brake hold function
display
The automatic brake hold function status is
shown by color in the “Chassis Control” mode
in the vehicle information display. For addi-
tional information, see “Vehicle information
display” (P. 2-19).
Also depending on the driving situations, some
warnings or indicators may be displayed in the
vehicle information display. For additional in-
formation, see “Vehicle information display
warnings and indicators” (P. 2-24)Multiple driving modes can be selected by us-
ing the INFINITI Drive Mode Selector (STAN-
DARD, SPORT, ECO and PERSONAL).
NOTE:
• When the INFINITI Drive Mode Selector
selects a mode, the mode may not switch
quickly. This is not a malfunction.
•
The mode list will be turned off in approxi-
mately 5 seconds after the mode is selected.
• If the driving mode cannot be switched us- ing the INFINITI Drive Mode Selector
when the ignition switch is in the ON posi-
tion, have the system checked. It is recom-
mended you visit an INFINITI retailer for
this service.
STANDARD MODE
STANDARD mode is recommended for nor-
mal driving. Push the INFINITI Drive Mode
Selector until “STANDARD” appears in the
vehicle information display. STANDARD
mode will also be displayed in the upper
display.
This mode will be selected first each time the
engine is started.
SPORT MODE
The SPORT mode adjusts the engine and
transmission to enhance performance. Push
the INFINITI Drive Mode Selector switch to
the SPORT position. “SPORT” appears in the
vehicle information display. SPORT mode will
also be displayed in the upper display.
NOTE:
In the SPORT mode, fuel economy may be
reduced.
LSD3922LSD4804
INFINITI Drive Mode Selector
INFINITI DRIVE MODE SELECTOR
Starting and driving5-29

TURNING THE TRAFFIC SIGN
RECOGNITION (TSR) SYSTEM ON
AND OFF
Perform the following steps to enable or dis-
able the TSR system.
1. Press the MENU button
O1below the
lower display screen.
2. Select “Driver Assistance.”
3. Select “Traffic Sign Assist.”
4. Select “ON” to turn the “Traffic Sign Rec- ognition” system on or off.
SYSTEM TEMPORARILY
UNAVAILABLE
If the vehicle is parked in direct sunlight under
high temperature conditions (over approxi-
mately 104°F [40°C]) and then started, the
TSR system may be deactivated automati-
cally. The “Not Available: High Camera
Temp.” warning message will appear in the
vehicle information display.
Action to take:
When the interior temperature is reduced,
the TSR system will resume operating
automatically.
SYSTEM MALFUNCTION
If the TSR system malfunctions, it will be
turned off automatically and the system
“Malfunction” warning message will appear
in the vehicle information display.
Action to take:
If the TSR “Malfunction” message appears,
pull off the road at a safe location and stop
the vehicle. Turn the engine off and restart
the engine. If the TSR “Malfunction” message
continues to appear, have the system
checked. It is recommended that you visit an
INFINITI retailer for this service.
SYSTEM MAINTENANCE
The TSR system uses the same multi-sensing
front camera unit that is used by the Lane
Departure Warning (LDW) system, located
in front of the interior rearview mirror. For
additional information, see ”System mainte-
nance” (P. 5-39).
LSD2965
5-34Starting and driving

SYSTEM TEMPORARILY
UNAVAILABLE
If the vehicle is parked in direct sunlight under
high temperature conditions (over approxi-
mately 104°F [40°C]) and then started, the
LDW system may be deactivated automati-
cally and the following message will appear
in the vehicle information display: “Not avail-
able: High Camera Temp.”
When the interior temperature is reduced,
the LDW system will resume operating
automatically.
The LDW system is not designed to warn
under the following conditions:
• When you operate the lane change signaland change traveling lanes in the direction
of the signal. (The LDW system will become
operable again approximately 2 seconds
after the lane change signal is turned off.)
• When the vehicle speed lowers to less than approximately 37 mph (60 km/h).
After the above conditions have finished and
the necessary operating conditions are satis-
fied, the LDW functions will resume.
SYSTEM MALFUNCTION
If the LDW system malfunctions, it will cancel
automatically and “Malfunction” will appear
in the vehicle information display. If “Mal-
function” appears in vehicle information dis-
play, pull off the road to a safe location and
stop the vehicle. Place the shift position in the
P (Park) position and ignition switch in the
OFF position and restart the engine. If “Mal-
function” continues to appear in vehicle infor-
mation display, have the system checked. It is
recommended that you visit an INFINITI re-
tailer for this service.
SYSTEM MAINTENANCE
The lane camera unitO1for 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 transpar- ent material) or install an accessory near
the camera unit.
LSD3075
Starting and driving5-39

While the LDP system is operating, you may
hear a sound of brake operation. This is nor-
mal and indicates that the LDP system is
operating properly.
SYSTEM TEMPORARILY
UNAVAILABLE
Condition A:
The warning and assist functions of the LDP
system are not designed to work under the
following conditions:
• When you operate the lane change signaland change the traveling lanes in the direc-
tion of the signal. (The LDP system will be
deactivated for approximately 2 seconds
after the lane change signal is turned off.)
• When the vehicle speed lowers to less than approximately 37 mph (60 km/h).
After the above conditions have finished and
the necessary operating conditions are satis-
fied, the warning and assist functions will
resume.
Condition B:
The assist function of the LDP system is not
designed to work under the following condi-
tions (warning is still functional):
• When the brake pedal is depressed. • When the steering wheel is turned as far as
necessary for the vehicle to change lanes.
• When the vehicle is accelerated during LDP system operation.
• When the Intelligent Cruise Control (ICC) approach warning occurs.
• When the hazard warning flashers are operated.
• When driving on a curve at high speed.
After the above conditions have finished and
the necessary operating conditions are satis-
fied, the LDP system application of the
brakes will resume.
Condition C:
If the following messages appear in the ve-
hicle information display the LDP system will
be turned off automatically:
• “Not Available Poor Road Conditions”: When the VDC system (except Traction
Control System [TCS] function) or ABS
operates.
• “Currently not available”: When the VDC system is turned off.
Action to take:
When the above conditions no longer exist,
turn off the LDP system. Push the ProPILOT
Assist switch on the steering wheel again to
turn the LDP system back on. Temporary disabled status at high
temperature:
If the vehicle is parked in direct sunlight under
high temperature conditions (over approxi-
mately 104°F [40°C]) and then the LDP sys-
tem is turned on, the LDP system may be
deactivated automatically and the following
message will appear on the vehicle informa-
tion display: “Not available: High Camera
Temp.” When the interior temperature is re-
duced, the system will resume operating
automatically.
SYSTEM MALFUNCTION
If the LDP system malfunctions, it will cancel
automatically. The LDP indicator (orange)
will illuminate in the display. If the LDP indi-
cator (orange) illuminates in the display, pull
off the road to a safe location and stop the
vehicle. Turn the engine off and restart the
engine. If the LDP indicator (orange) contin-
ues to illuminate, have the LDP system
checked. It is recommended that you visit an
INFINITI retailer for this service.
5-44Starting and driving

Malfunction
If the BSW system malfunctions, it will turn
off automatically. The system malfunction
warning message will appear in the vehicle
information display.
NOTE:
If the BSW system stops working, the RCTA
system will also stop working.
Action to take:
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the en-
gine off and restart the engine. If the mes-
sage continues to appear, have the system
checked. It is recommended that you visit an
INFINITI retailer for this service.
SYSTEM MAINTENANCE
The two radar sensorsO1for the BSW sys-
tem are located near the rear bumper. Always
keep the area near the radar sensors clean.
The radar sensors may be blocked by tempo-
rary 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 that you
visit 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 inter-
ference, and
(2) this device must accept any interference
received, including interference that may
cause undesired operation.
LSD2920
Starting and driving5-53

– When the ICC, PFCW or FEB with Pe-destrian Detection warnings sound.
– When the hazard warning flashers are operated.
– When driving on a curve at a high speed.
SYSTEM TEMPORARILY
UNAVAILABLE
When any of the following messages appear
on the vehicle information display, a chime
will sound and the BSI system will be turned
off automatically.
• “Not Available Poor Road Conditions”: When the VDC system (except traction
control system function) or ABS operates.
• “Currently Not Available”: When the VDC system is turned off.
• “Not Available: High Camera Temp”: When the camera detects that the interior
temperature is high (over approximately
104°F [40°C]).
• “Unavailable: Side Radar Obstruction”: When side radar blockage is detected.
Turn off the BSI system and turn it on again
when the above conditions no longer exist.
SYSTEM MALFUNCTION
When the BSI system malfunctions, it will be
turned off automatically, a chime will sound
and the warning message will appear in the
vehicle information display.
Action to take:
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the en-
gine off and restart the engine. If the warning
light (orange) continues to illuminate, have
the system checked. It is recommended that
you visit an INFINITI retailer for this service.
SYSTEM MAINTENANCE
The lane camera unitO1for the BSI system is
located above the inside mirror. The two ra-
dar sensors
O2for the BSI system are located
near the rear bumper. To keep the proper
operation of the BSI system and prevent a
system malfunction, be sure to observe the
following:
• Always keep the windshield and the area near the radar sensors clean.
LSD2924
5-64Starting and driving

Malfunction
When the RCTA system malfunctions, it will
turn off automatically. The system malfunc-
tion warning message will appear in the ve-
hicle information display.
NOTE:
If the BSW system stops working, the RCTA
system will also stop working.
Action to take
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the en-
gine off and restart the engine. If the mes-
sage continues to appear, have the system
checked. It is recommended that you visit an
INFINITI retailer for this service.
SYSTEM MAINTENANCE
The two radar sensorsO1for the BSW and
RCTA systems are located near the rear
bumper. Always keep the area near the radar
sensors clean.
The radar sensors may be blocked by tempo-
rary 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 that you
visit 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 inter-
ference, and
(2) this device must accept any interference
received, including interference that may
cause undesired operation.LSD2920
5-72Starting and driving

Action to take:
When the conditions listed above are no lon-
ger present, turn the system off using the
ProPILOT Assist switch. Turn the ProPILOT
Assist system back on to use the system.
NOTE:
When the ICC system is canceled under
the following conditions at a standstill,
the electronic parking brake is automati-
cally activated:
• Any door is open.
• The driver’s seat belt is not fastened.
•
Your vehicle has been stopped by the ICC
system for approximately 3 minutes or
longer.
• The shift lever is not in the D (Drive) posi-tion or manual shift mode.
• The VDC system is turned off.
• When distance measurement becomes im- paired due to adhesion of dirt or obstruc-
tion to the sensor.
• When the radar signal is temporarily interrupted. Condition B
When there is inclement weather (rain, fog,
snow, etc.) blocking the front radar sensor,
the ICC system will automatically be can-
celed, the chime will sound and the “Forward
Driving Aids temporarily disabled Front Sen-
sor blocked See Owner’s Manual” warning
message will appear in the vehicle informa-
tion display.
Action to take:
When the conditions listed above are no lon-
ger present, the warning message will no
longer be available in the vehicle information
display and the system will operate normally.
If the “Forward Driving Aids temporarily dis-
abled Front Sensor blocked See Owner’s
Manual” warning message continues to be
displayed, have the system checked. It is rec-
ommended that you visit an INFINITI retailer
for this service.
Condition C
When the radar sensor of the front bumper is
covered with mud, dirt, snow, ice, etc., or is
obstructed, the ICC system will automatically
be canceled.
The chime will sound and the “Forward Driv-
ing Aids temporarily disabled Front Sensor blocked See Owner’s Manual” warning mes-
sage will appear in the vehicle information
display.
Action to take:
If the warning message appears, stop the
vehicle in a safe place, press the Park button
to place the vehicle in the P (Park) position,
and turn the engine off. When the radar sig-
nal is temporarily interrupted, clean the sen-
sor area of the front bumper and restart the
engine. If the “Forward Driving Aids tempo-
rarily disabled Front Sensor blocked See
Owner’s Manual” warning message contin-
ues to be displayed, have the system checked.
It is recommended that you visit an INFINITI
retailer for this service.
Condition D
When driving on roads with limited road struc-
tures or buildings (for example, long bridges,
deserts, snow fields, driving next to long walls),
the system may illuminate the system warning
light and display the “Forward Driving Aids
temporarily disabled Front Sensor blocked See
Owner’s Manual” message.
Action to take:
When the above driving conditions no longer
exist, turn the system back on.
Starting and driving5-93

–When an object that obstructs the
camera unit detection range is
attached
– When excessively heavy baggage is
loaded in the rear seat or luggage
area of your vehicle
– When the vehicle load capacity is
exceeded
– When towing a trailer or other vehicle
• Excessive noise will interfere with the
warning chime sound, and the beep may
not be heard.
• For the ProPILOT Assist system to oper-
ate properly, the windshield in front of
the camera must be clean. Replace worn
wiper blades. The correct size wiper
blades must be used to help make sure
the windshield is kept clean. Only use
Genuine INFINITI wiper blades, or
equivalent wiper blades, that are specifi-
cally designed for use on your vehicle
model and model year. It is recommended
that you visit your INFINITI retailer for
the correct parts for your vehicle.Steering Assist temporary standby
Automatic standby due to driving operation:
When the driver activates the turn signal, the
Steering Assist is temporarily placed in a
standby mode. (The Steering Assist restarts
automatically when the operating conditions
are met again.)
Automatic standby:
In the following cases, a warning message is
displayed along with the chime, and the
Steering Assist is placed in a temporary
standby mode. (The Steering Assist restarts
automatically when the operating conditions
are met again.)
• When lane markers on both sides are no longer detected
• When a vehicle ahead is no longer detected under approximately 37 mph (60 km/h)
Steering Assist cancel
Under the following conditions, the Steering
Assist cancels, and the Steering Assist status
indicator and the Steering Assist indicator
turn off:
• When unusual lane markers appear in thetraveling lane or when the lane marker can-
not be correctly detected for some time due
to certain conditions (for example, a snow rut, the reflection of light on a rainy day, the
presence of several unclear lane markers)
• When the windshield wiper operates in the high (HI) speed operation (the Steering As-
sist is disabled when the wiper operates for
more than approximately 10 seconds)
Action to take:
Turn the ICC system off using the CANCEL
switch. When the conditions listed above are
no longer present, turn the ICC system on
again.
Steering Assist malfunction
When the system malfunctions, it turns off
automatically. The Steering Assist status
warning illuminates (orange). A chime may
sound depending on the situation.
Action to take:
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the en-
gine off, restart the engine, resume driving,
and set the Intelligent Cruise Control system
again. If the warning (orange) continues to
illuminate, the Steering Assist is malfunction-
ing. Although the vehicle is still drivable under
normal conditions, have the system checked.
It is recommended that you visit an INFINITI
retailer for this service.
Starting and driving5-99