check engine INFINITI QX55 2023 Service Manual

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 dis-
played in the vehicle information display. For
additional information, see “Vehicle informa-
tion display warnings and indicators”
(P. 2-25)Multiple driving modes can be selected by
using the INFINITI Drive Mode Selector
switch: STANDARD, SPORT, ECO and
PERSONAL.
When the INFINITI Drive Mode Selector se-
lects a mode, the mode may not switch
quickly. This is not a malfunction.
NOTE:
• The mode list will be turned off in approxi-
mately 5 seconds after the mode is
selected.
• Select the STANDARD mode for normal driving. If the driving mode cannot be switched using
the INFINITI Drive Mode Selector when the
ignition switch is in the ON position, have the
system checked by an INFINITI retailer.
STANDARD MODE
STANDARD mode is recommended for nor-
mal driving. Push the INFINITI Drive Mode
Selector switch until “STANDARD” appears
in the vehicle information display. STAN-
DARD 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.
LSD3922LSD2917
INFINITI Drive Mode Selector switch
INFINITI DRIVE MODE SELECTOR
Starting and driving5-29

– When rain, snow or dirt adheres tothe windshield in front of the multi-
sensing camera unit.
– When the headlights are not bright, for example, due to dirt on the lens or
if the aiming is not adjusted properly.
– When strong light enters the camera unit. (For example, the light directly
shines on the front of the vehicle at
sunrise or sunset.)
– When a sudden change in brightness occurs. (For example, when the ve-
hicle enters or exits a tunnel or under
a bridge.)
– If there are deviations in relation to the navigation, for example due to
changes in the road routing.
– When overtaking buses or trucks with speed stickers.
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.
LSD2965
Starting and driving5-33

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 ob-
serve the following:
• Always keep the windshield clean.
• Do not attach a sticker (including transpar- ent material) or install an accessory near
the camera unit. • Do not place reflective materials, such as
white paper or a mirror, on the instrument
panel. The reflection of sunlight may ad-
versely affect the camera unit’s capability
of detecting the lane markers.
• Do not strike or damage the areas around the camera unit. Do not touch the camera
lens or remove the screw located on the
camera unit. If the camera unit is damaged
due to an accident, it is recommended that
you visit an INFINITI retailer.
LSD3075
5-38Starting and driving

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.
SYSTEM MAINTENANCE
The lane camera unitO1for the LDP system
is located behind the inside mirror. To keep
the proper operation of the LDP system and
prevent a system malfunction, be sure to ob-
serve the following:
• Always keep the windshield clean.
• Do not attach a sticker (including transpar- ent material) or install an accessory near
the camera unit. • Do not place reflective materials, such as
white paper or a mirror, on the instrument
panel. The reflection of sunlight may ad-
versely affect the camera unit’s capability
of detecting the lane markers.
• Do not strike or damage the areas around the camera unit. Do not touch the camera
lens or remove the screw located on the
camera unit. If the camera unit is damaged
due to an accident, it is recommended that
you visit an INFINITI retailer.
LSD3075
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: 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 interference, and (2) this device must
accept any interference received, including
interference that may cause undesired
operation.
FCC Warning
Changes or modifications not expressly ap-
proved by the party responsible for compli-
ance could void the user’s authority to oper-
ate the equipment.
LSD4092
5-52Starting and driving

NOTE:
• Illustration 12: The BSI system will not op-erate if your vehicle is on a lane marker
when another vehicle enters the detection
zone. In this case, only the BSW system
operates.
• BSI braking will not operate or will stop operating and only a warning chime will
sound under the following conditions:– When the brake pedal is depressed.
– When the vehicle is accelerated during BSI system operation.
– When steering quickly. – When the PFCW or FEB with Pedes-
trian 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.
LSD2051
Illustration 12 – Entering from the side
Starting and driving5-63

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: 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 interference, and (2) this device must
accept any interference received, including
interference that may cause undesired
operation.
FCC Warning
Changes or modifications not expressly ap-
proved by the party responsible for compli-
ance could void the user’s authority to oper-
ate the equipment.
LSD4092
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 ICCsystem 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 dirt 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
structures 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 “For-
ward 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

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.
Steering Assist maintenance
The camera sensor is located above the in-
side mirror.
To keep the proper operation of the 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.
• Do not place reflective materials, such as white paper or a mirror, on the instrument
panel. The reflection of sunlight may ad-
versely affect the camera unit’s capability
of detecting the lane markers. • Do not strike or damage the areas around
the camera unit. Do not touch the camera
lens or remove the screw located on the
camera unit.
If the camera unit is damaged due to an
accident, it is recommended that you visit an
INFINITI retailer.
Radio frequency statement
For USA/Canada
Model: ARS4–A
IC: 4135A-ARS4A
FCC ID: OAYARS4A
This device complies with Part 15 of the FCC
Rules and with Industry Canada licence-
exempt RSS standard(s). 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.
Le present appareil est conforme aux CNR
d’Industrie Canada applicables aux appareils
radio exempts de licence. L’exploitation est
autorisee aux deux conditions suivantes: 1. L’appareil ne doit pas produire de brouil-
lage, et
2. L’utilisateur de l’appareil doit accepter tout brouillage radioelectrique subi, meme
si le brouillage est susceptible d’en com-
promettre le fonctionnement.
Radio Frequency Radiation Exposure
Information:
This equipment complies with FCC radiation
exposure limits set forth for an uncontrolled
environment.
This equipment should be installed and oper-
ated with minimum distance of 30 cm be-
tween the radiator and your body.
This transmitter must not be co-located or
operating in conjunction with any other an-
tenna or transmitter.
Cet equipement est conforme aux limites
d’exposition aux rayonnements IC etablies
pour un environnement non controle. Cet
equipement doit etre installe et utilise avec un
minimum de 30 cm de distance entre la
source de rayonnement et votre corps.
FCC Notice
Changes or modifications not expressly ap-
proved by the party responsible for compli-
ance could void the user’s authority to oper-
ate the equipment.
5-100Starting and driving

–Snow chains are used.
– Wheels or tires other than INFINITI
recommended are used.
– The brakes are cold at low ambient
temperatures or immediately after
driving has started.
– The braking force becomes poor due
to wet brakes after driving through a
puddle or washing the vehicle.
• Turn the RAB system off in the following
conditions to prevent the occurrence of
an unexpected accident resulting from
sudden system operation:
– The vehicle is towed.
– The vehicle is carried on a flatbed
truck.
– The vehicle is on the chassis
dynamometer.
– The vehicle drives on an uneven road
surface.
– Suspension parts other than those
designated as Genuine INFINITI
parts are used. (If the vehicle height
or the vehicle body inclination is
changed, the system may not detect
an obstacle correctly.) –
If the vehicle is using an accessory like
a bike rack, or cargo carrier that
blocks the sensors.
• Excessive noise (e.g., audio system vol-
ume, an open vehicle window) will inter-
fere with the chime sound, and it may not
be heard.
SYSTEM MALFUNCTION
If the RAB system malfunctions, it will be
turned off automatically, the RAB system
warning light will illuminate, and the “System
fault See Owner’s Manual” warning message
will appear in the vehicle information display.
Action to take
If the warning light illuminates, park the ve-
hicle in a safe location, turn the engine off,
and restart the engine. If the warning light
continues to illuminate, have the RAB system
checked. It is recommended that you visit an
INFINITI retailer for this service.
NOTE:
If the RAB system cannot be operated tem-
porarily, the RAB system warning light
blinks.
SYSTEM MAINTENANCE
Observe the following items to ensure proper
operation of the system:
• Always keep the parking sensors
O1clean.
• If the parking sensors are dirty, wipe them off with a soft cloth while being careful to
not damage them.
• Do not subject the area around the parking sensors
O1to strong impact. Also, do not
remove or disassemble the parking sensors.
If the parking sensors and peripheral areas
are deformed in an accident, etc., have the
sensors checked. It is recommended that
you visit an INFINITI retailer for this service.
LSD4097
5-108Starting and driving