light INFINITI QX55 2023 Service Manual

Low tire pressure warning
If the vehicle is being driven with low tire
pressure, the warning light will illuminate. A
“Tire Pressure Low - Add Air” warning also
appears in the vehicle information display.
When the low tire pressure warning light il-
luminates, you should stop and adjust the
tire pressure of all four tires to the recom-
mended COLD tire pressure shown on the
Tire and Loading Information label located in
the driver's door opening. The low tire pres-
sure warning light does not automatically
turn off when the tire pressure is adjusted.
After the tire is inflated to the recommended
pressure, the vehicle must be driven at
speeds above 16 mph (25 km/h) to activate
the TPMS and turn off the low tire pressure
warning light. Use a tire pressure gauge to
check the tire pressure.
The “Tire Pressure Low - Add Air” warning
appears each time the ignition switch is
placed in the ON position as long as the low
tire pressure warning light remains
illuminated.
For additional information, see “Vehicle in-
formation display” (P. 2-19) and “Tire Pres-
sure Monitoring System (TPMS)” (P. 5-5) and
(P. 6-3).
TPMS malfunction
If the TPMS is not functioning properly, the
low tire pressure warning light will flash for
approximately 1 minute when the ignition
switch is placed in the ON position. The light
will remain on after 1 minute. Have the sys-
tem checked. It is recommended that you visit
an INFINITI retailer for this service. The "Tire
Pressure Low — Add Air" warning does not
appear if the low tire pressure warning light
illuminates to indicate a TPMS malfunction.
For additional information, see “Tire Pressure
Monitoring System (TPMS)” (P. 5-5) and “Tire
pressure” (P. 8-27).
WARNING
• Radio waves could adversely affect elec-
tric medical equipment. Those who use a
pacemaker should contact the electric
medical equipment manufacturer for the
possible influences before use.
• If the light does not illuminate with the
ignition switch placed in the ON position,
have the vehicle checked as soon as pos-
sible. It is recommended that you visit an
INFINITI retailer for this service. •
If the light illuminates while driving,
avoid sudden steering maneuvers or
abrupt braking, reduce vehicle speed,
pull off the road to a safe location and
stop the vehicle as soon as possible. Driv-
ing with under-inflated tires may perma-
nently damage the tires and increase the
likelihood of tire failure. Serious vehicle
damage could occur and may lead to an
accident and could result in serious per-
sonal injury or death. Check the tire pres-
sure for all four tires. Adjust the tire
pressure to the recommended COLD tire
pressure show on the Tire and Loading
Information label located in the driver’s
door opening to turn the low tire pres-
sure warning light OFF. If the light still
illuminates while driving after adjusting
the tire pressure, a tire may be flat or the
TPMS may be malfunctioning. If you
have a flat tire, replace it with a replace-
ment tire as soon as possible. If no tire is
flat and all tires are properly inflated,
have the vehicle checked. It is recom-
mended that you visit an INFINITI re-
tailer for this service.
2-14Instruments and controls

•When using a wheel without the TPMS
such as the spare tire, the TPMS will not
function and the low tire pressure
warning light will flash for approxi-
mately 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 recommended that you
visit an INFINITI retailer for these
services.
• Replacing tires with those not originally
specified by INFINITI could affect the
proper operation of the TPMS.
CAUTION
• The TPMS is not a substitute for the
regular tire pressure check. Be sure to
check the tire pressure regularly.
• If the vehicle is being driven at speeds of
less than 16 mph (25 km/h), the TPMS
may not operate correctly.
• Be sure to install the specified size of
tires to the four wheels correctly.
Malfunction Indicator Light
(MIL)
If this indicator light comes on steady or
blinks while the engine is running, it may indi-
cate a potential emission control
malfunction.
The MIL may also come on steady if the
fuel-filler cap is loose or missing, or if the
vehicle runs out of fuel. Check to make sure
the fuel-filler cap is installed and closed
tightly, and that the vehicle has at least 3
gallons (11.4 liters) of fuel in the fuel tank.
After a few driving trips, the
light should
turn off if no other potential emission control
system malfunction exists.
If this indicator light comes on steady for 20
seconds and then blinks for 10 seconds when
the engine is not running, it indicates that the
vehicle is not ready for an emission control
system inspection/maintenance test. For ad-
ditional information, see “Readiness for
Inspection/Maintenance (I/M) test”
(P. 10-24).
Operation
The MIL will come on in one of two ways:
• MIL on steady — An emission control sys- tem malfunction has been detected. Check
the fuel-filler cap. If the fuel-filler cap is
loose or missing, tighten or install the cap
and continue to drive the vehicle. The
light should turn off after a few driving
trips. If thelight does not turn off
after a few driving trips, have the vehicle
checked. It is recommended that you visit
an INFINITI retailer for this service. You do
not need to have your vehicle towed to the
retailer.
• MIL blinking — An engine misfire has been detected which may damage the emission
control system. To reduce or avoid emis-
sion control system damage:– Do not drive at speeds above 45 mph (72 km/h).
– Avoid hard acceleration or deceleration.
– Avoid steep uphill grades.
– If possible, reduce the amount of cargo being hauled or towed.
The MIL may stop blinking and come on
steady. Have the vehicle checked. It is recom-
mended that you visit an INFINITI retailer for
this service. You do not need to have your
vehicle towed to the retailer.
Instruments and controls2-15

CAUTION
Continued vehicle operation without hav-
ing the emission control system checked
and repaired as necessary could lead to
poor driveability, reduced fuel economy,
and possible damage to the emission con-
trol system.
Master warning light
When the ignition switch is in the ON posi-
tion, the master warning light illuminates if
any of the following (if so equipped) are dis-
played on the vehicle information display:
• I-Key system warnings
• Low washer fluid warning
• Door/ liftgate open warning (when vehicle is stopped)
• Loose fuel cap warning
• Low tire pressure warning
• Flat tire warning
• Transmission system warning
• Headlight warning
• Driver Attention Support system warning
• Shipping mode warning
• All Wheel Drive (AWD) system warning • Adaptive Front lighting System (AFS)
warning
• Driving Aids malfunction warning
• Chassis Control System Error warning
• Engine warnings
For additional information, see “Vehicle in-
formation display” (P. 2-19).
Power steering warning
light
WARNING
• If the engine is not running or is turned
off while driving, the power assist for the
steering will not work. Steering will be
harder to operate.
• When the power steering warning light
illuminates with the engine running,
there will be no power assist for the
steering. You will still have control of the
vehicle, but the steering will be harder to
operate. Have the power steering sys-
tem checked. It is recommended that you
visit an INFINITI retailer for this service.
Models with Direct Adaptive Steering®:
When the ignition switch is in the ON posi-
tion, the power steering warning light illumi-
nates. After starting the engine, the power steering warning light stays on for a few
seconds and turns off. This indicates that
Direct Adaptive Steering is operational. Drive
the vehicle after the power steering warning
light turns off.
If the power steering warning light illumi-
nates while driving, pull off the road to a safe
location and stop the vehicle. If the power
steering warning light turns off, you can drive
again. If the power steering warning light
continues to illuminate, have the Direct
Adaptive Steering checked. It is recom-
mended that you visit an INFINITI retailer for
this service. For additional information, see
“Power steering”. (P. 5-136).
Models with electric power steering:
When the ignition switch is in the ON posi-
tion, the power steering warning light illumi-
nates. After starting the engine, the power
steering warning light turns off. This indicates
the electric power steering is operational.
If the power steering warning light illumi-
nates while the engine is running, it may indi-
cate the electric power steering is not func-
tioning properly and may need servicing. It is
recommended that you have the electric
power steering checked by an INFINITI
retailer.
2-16Instruments and controls

When the power steering warning light illu-
minates with the engine running, the power
assist to the steering will cease operation but
you will still have control of the vehicle. At this
time, greater steering efforts are required to
operate the steering wheel, especially in
sharp turns and at low speeds. For additional
information, see “Power steering” (P. 5-136).
Rear Automatic Braking
(RAB) warning light
This light comes on when the ignition switch
is placed in the ON position. It turns off after
the engine is started.
This light illuminates when the RAB system is
turned off in the vehicle information display.
If the light illuminates when the RAB system
is on, it may indicate that the system is un-
available. For additional information, see
“Rear Automatic Braking (RAB)” (P. 5-104).
Slip indicator light
This indicator light will blink when the VDC
system is operating, thus alerting the driver to
the fact that the road surface is slippery and
the vehicle is nearing its traction limits.
You may feel or hear the system working; this
is normal.The light will blink for a few seconds after the
VDC system stops limiting wheel spin.
The
indicator light also comes on when
you place the ignition switch in the ON posi-
tion. The light will turn off after a period of
time if the system is operational. If the light
does not come on have the system checked. It
is recommended that you visit an INFINITI
retailer for this service.
Vehicle Dynamic Control
(VDC) OFF indicator light
This indicator light comes on when the VDC is
turned off in the lower display. This indicates
the VDC has been turned off.
Turn the VDC on again by reactivating it in
the lower display, or restarting the engine.
The system will be reactivated. For additional
information, see “Vehicle Dynamic Control
(VDC) system” (P. 5-141).
The VDC light also comes on when the igni-
tion switch is placed in the ON position. The
light will turn off after a period of time if the
system is operational. If the light stays on or
comes on along with the
indicator light
while you are driving, have the VDC system
checked. It is recommended that you visit an
INFINITI retailer for this service.
WARNING
VDC should remain on unless freeing a ve-
hicle from mud or snow.
While the VDC system is operating, you
might feel a slight vibration or hear the sys-
tem working when starting the vehicle or ac-
celerating, but this is normal.
WARNING/INDICATOR LIGHTS
(other)
For additional information, see “Vehicle in-
formation display” (P. 2-19).
Automatic brake hold
indicator light (white/green)
This light illuminates to show the status of
the automatic brake hold system.
When the automatic brake hold system is on
standby, the indicator will illuminate white.
When the automatic brake hold system is
operating, the indicator will illuminate green.
For additional information, see “Automatic
brake hold” (P. 5-26).
Instruments and controls2-17

ECO drive indicator light
(green) (if so equipped)
When the ECO mode has been selected, the
ECO drive indicator light will illuminate, blink,
or remain off depending on the accelerator
pedal operation. This is to help the driver drive
economically. For additional information, see
“ECO mode” (P. 5-31).
Front fog light indicator
light (green)
The front fog light indicator light illuminates
when the front fog lights are on. For addi-
tional information, see “Fog light switch”
(P. 2-47).
High Beam Assist indicator
light (green)
This indicator light illuminates when the
headlights come on while the headlight
switch is in the AUTO position with the high
beams selected. This indicates that the high
beam assist is operational.
For additional information, see “Headlight
switch” (P. 2-40).
High beam indicator light
(blue)
This blue light comes on when the headlight
high beams are on and goes out when the
low beams are selected.
The high beam indicator light also comes on
when the passing signal is activated.
Side light and headlight
indicator light (green)
The side light and headlight indicator light
illuminates when the side light or headlights
are on (not including daytime running or sig-
nature lights). If the headlight switch is in the
AUTO position, the side light and headlight
indicator light will illuminate when the head-
lights turn on. For additional information, see
“Headlight switch” (P. 2-40).
Turn signal/hazard indicator
lights
The appropriate light flashes when the turn
signal switch is activated.
Both lights flash when the hazard switch is
turned on.
AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear warn-
ings. When a disc brake pad requires replace-
ment, it makes a high pitched scraping sound
when the vehicle is in motion, whether or not
the brake pedal is depressed. Have the brakes
checked as soon as possible if the warning
sound is heard.
Key reminder chime (if so equipped)
A chime sounds if the driver's door is opened
while the ignition switch is placed in the OFF
position or placed in the OFF or LOCK posi-
tion with the key left in the vehicle. Make sure
the ignition switch is placed in the LOCK
position, and take the key with you when
leaving the vehicle.
Light reminder chime
With the ignition switch placed in the OFF
position, a chime sounds when the driver's
door is opened if the headlights or parking
lights are on.
Turn the headlight control switch off before
leaving the vehicle.
2-18Instruments and controls

When the “Tire Pressure Low — Add Air” or
“Flat Tire — Visit dealer” warning appears, the
display can be switched to the tire pressure
mode by pushing the
orswitch to
reveal additional details on the displayed
warning.
For additional information, see “Low tire
pressure warning light” (P. 2-13), “Tire Pres-
sure Monitoring System (TPMS)” (P. 5-5),
“Flat tire” (P. 6-3) and “Types of tires”
(P. 8-35)
8. Chassis Control
The chassis control mode displays the status
of the Active Trace Control, Active Engine
Brake, and Active Ride Control.
For additional information, see “Chassis Con-
trol” (P. 5-144).
9. Oil control system
Engine oil information informs the distance
to oil change. Never exceed one year or 7500
miles (12000 km) between oil change
intervals.
Display when
ignition is ON Display timing Action Required
Engine Oil Ser-
vice due in xxx
miles Remaining oil
life is less than
940 miles
(1500 km). Plan to have
your vehicle
serviced.
Engine Oil Ser-
vice due Remaining oil
life is 0 miles (0
km). Have your ve-
hicle serviced
within two
weeks or less
than 500 miles
(800 km).
The oil change interval cannot be adjusted
manually.
The distance to oil change interval is calcu-
lated depending on the driving conditions and
set automatically by the oil control system.
CAUTION
If the oil replacement indicator is displayed,
change the engine oil within two weeks or
less than 500 miles (800 km).
Operating the vehicle with deteriorated oil
can damage the engine. To reset oil control system:
1. Place the ignition switch in the “ON”
position.
2. Push the trip computer switches
andlocated on the right side of the steer-
ing wheel to change the display.
3. Select the Engine Oil Service due in xxx miles display.
4. Push and hold the
orswitch for
longer than 1 second. Hold until the re-
maining distance changes to – – – miles
(km).
10. Variable Compression Turbo
Your engine is equipped with a variable com-
pression ratio system called “Variable Com-
pression Turbo”. This system can vary the
engine compression ratio continuously.
According to driving conditions, the system
applies optimum compression ratio auto-
matically to achieve both high output and
high fuel economy efficiency.
This is not a physical gauge. It is a display
option in the vehicle information display that
can be selected. For additional information,
see “Vehicle information display” (P. 2-19).
Instruments and controls2-23

1Compression ratio status display
Displays the status of compression ratio
controlled by Variable Compression
Turbo. The lowest compression ratio
(8:1) and the highest (14:1) are displayed
as “Power” and ”Eco” respectively.
2Turbo charger boost pressure gauge
Displays the turbo charger boost
pressure.
NOTE:
Under some conditions, the compression ra-
tio may not change. This is not a malfunction
of the system.
CAUTION
If the Variable Compression Turbo be-
comes faulty, the Malfunction Indicator
Light (MIL) may come on. For additional
information, see “Malfunction Indicator
Light (MIL)” (P. 2-15).
11. ProPILOT Assist
The ProPILOT Assist mode shows operating
conditions for the following systems:
• Intelligent Cruise Control (ICC)
• Steering Assist The display will also be shown when the Pro-
PILOT Assist is turned on. For additional in-
formation, see “ProPILOT Assist” (P. 5-73).
12. Traffic Sign Recognition (if so
equipped)
The Traffic Sign Recognition (TSR) system
provides the driver with information about
the most recently detected speed limit.
For additional information, see “Traffic Sign
Recognition (TSR) (P. 5-31).
13. Compass
This display indicates the direction the vehicle
is heading.
RESETTING THE TRIP
COMPUTER
1. Press thebutton until you reach the
trip computer mode.
2. Press the
button again for more
than 1.5 seconds to reset average fuel
consumption, average speed, distance to
empty, and journey time.
TIRE PRESSURE INFORMATION
(Display Settings)
The tire pressure mode shows the pressure of
all four tires while the vehicle is driven.
When the “Tire Pressure Low-Add Air” or
“Flat Tire-Visit dealer” (if so equipped)
warning appears, the display can be switched
to the tire pressure mode by pushing the
orswitch on the steering wheel.
The tire pressure unit can be changed in the
lower display.
1. Touch the “Settings” key.
2. Select “Meter” and then select “TPMS settings”.
For additional information, refer to the sepa-
rate INFINITI InTouch™ Owner’s Manual.
NOTE:
After the ignition switch is placed in the ON
position, it may take a period of time for the
tire pressure to be displayed while the ve-
hicle is driven. Depending on the radio wave
circumstance, tire pressure may not cor-
rectly be displayed.
2-24Instruments and controls

Key System Error: See
Owner’s Manual
After the ignition switch is placed in the ON
position, this warning appears for a period of
time and then turns off.
The Key System Error message warns of a
malfunction with the Intelligent Key system.
If the warning appears while the engine is
stopped, it may be impossible to start the
engine.
If the warning appears while the engine is
running, you can drive the vehicle. However in
these cases, have the system checked. It is
recommended that you visit an INFINITI re-
tailer for this service.
No Key Detected
This warning appears when the Intelligent
Key is left outside the vehicle with the ignition
switch in the ON position. Make sure the
Intelligent Key is inside the vehicle.
For additional information, see “INFINITI In-
telligent Key System” (P. 3-2).
AFS System Error: See Owner’s Manual
This message may appear when the Adaptive
Front lighting System (AFS) encounters an
error.For additional information, see Adaptive
Front lighting System (AFS) (P. 2-45).
Chassis Control System Error: See
Owner’s Manual
This warning appears if the chassis control is
not functioning properly. Have the system
checked. It is recommended that you visit an
INFINITI retailer for this service.
For additional information, see “Chassis Con-
trol” (P. 5-144).
Check position of shift lever
This message appears when a malfunction
occurs in the electric shift device.
Have the system checked. It is recommended
that you visit an INFINITI retailer for this
service.
Door/liftgate Open
This warning appears when a door or the
liftgate has been opened.
Flat Tire — Visit dealer
This warning appears when the low tire pres-
sure warning light in the meter illuminates
and one or more flat tires are detected while
driving. For additional information, see “Flat
tire” (P. 6-3) and “Types of tires” (P. 8-35).
Headlight System Error: See Owner’s
Manual
This warning appears when there is an error
with the system. For additional information,
see “Headlight switch” (P. 2-40).
INFINITI Drive Mode Selector indicator
When a driving mode is selected using the
INFINITI Drive Mode Selector, the selected
mode indicator is displayed.
• PERSONAL
• SPORT
• STANDARD
• ECO
For additional information, see “INFINITI
Drive Mode Selector” (P. 5-29).
Loose Fuel Cap
This warning appears when the fuel-filler cap
is not tightened correctly after the vehicle has
been refueled. For additional information,
see “Fuel-filler cap” (P. 3-29).
2-26Instruments and controls

belt icon will change. The warning will auto-
matically turn off after approximately 35
seconds.
A chime will sound one time and the rear seat
belt warning will appear if a rear passenger’s
seat belt is unfastened.
Release Parking Brake
This warning appears in the message area of
the vehicle information display when the
parking brake is set and the vehicle is driven.
Reminder: Turn OFF
Headlights
This warning appears when the headlights
are left in the ON position when exiting the
vehicle. Place the headlight switch in the OFF
or AUTO position. For additional informa-
tion, see “Headlight switch” (P. 2-40).
Shift system malfunction: Visit Dealer
This message appears when a malfunction
occurs in the electric shift control system at 6
mph (10 km/h) or higher.
Have the system checked. It is recommended
that you visit an INFINITI retailer for this
service.
Shift to Park
This warning appears only when all the fol-
lowing conditions are met:
• The ignition switch is in the ON position.
• The driver’s door is open.
• Vehicle is stopped (or vehicle speed is lessthan 1.8 mph (3 km/h).
• Shift position is in a position other than the P (Park) position.
If this warning appears, press the P (Park)
button.
Shift to P range
This warning appears when the driver’s door
is opened with the shift position in any posi-
tion other than the P (Park) position.
If this warning appears, move the shift posi-
tion to the P (Park) position.
Shipping Mode On Push Storage Fuse
This warning may appear if the extended
storage switch is not pushed in. When this
warning appears, push in the extended stor-
age switch to turn off the warning. For addi-
tional information, see “Extended storage
switch” (P. 2-56).
Stop vehicle and Apply
parking brake
This message may appear when the battery
charge is low.
Please park vehicle as soon as possible. It is
recommended that you visit an INFINITI
retailer.
Transmission Shift Position
indicator
This indicator shows the transmission shift
position.
Tire Pressure Low - Add Air
This warning appears when the low tire pres-
sure warning light in the meter illuminates
and low tire pressure is detected. The
warning appears each time the ignition
switch is placed in the ON position as long as
the low tire pressure warning light remains
illuminated. If this warning appears, stop the
vehicle and adjust the tire pressures of all four
tires to the recommended COLD tire pres-
sure shown on the Tire and Loading Informa-
tion label. For additional information, see
“Low tire pressure warning light” (P. 2-13)
and “Tire Pressure Monitoring System
(TPMS)” (P. 5-5).
2-28Instruments and controls

WARNING
When the high fluid temperature protec-
tion mode operation occurs, vehicle speed
may be gradually reduced. The reduced
speed may be lower than other traffic,
which could increase the chance of a colli-
sion. Be especially careful when driving. If
necessary, pull to the side of the road at a
safe place and allow the engine to return to
normal operation; or have it repaired if
necessary.
Engine Malfunction: Power Reduced
Service now
This warning appears when the engine is not
operating under normal conditions. If this
warning comes on, have the system checked.
It is recommended that you visit an INFINITI
retailer for this service.
Engine Malfunction Service now
This warning appears when there is a prob-
lem with the engine. If this warning comes on,
have the system checked. It is recommended
that you visit an INFINITI retailer for this
service.
Engine Stalled: Stop safely
This message appears 30 seconds before the
vehicle is shut down due to an above normal
operating exhaust temperature. The Malfunc-
tion Indicator Light (MIL) and malfunction
warning (red) will illuminate. Have the system
checked. It is recommended that you visit an
INFINITI retailer immediately for this service.
Service CVT (AT) Power reduced
This transmission has a high fluid tempera-
ture protection mode. If the fluid temperature
becomes too high (for example, climbing
steep grades in high temperatures with heavy
loads), engine power and, under some condi-
tions, vehicle speed will be decreased auto-
matically to reduce the chance of transmis-
sion damage. Vehicle speed can be controlled
with the accelerator pedal, but the engine
and vehicle speed may be reduced.
WARNING
When the high fluid temperature protection
mode operation occurs, vehicle speed may be
gradually reduced. The reduced speed may
be lower than other traffic, which could in-
crease the chance of a collision. Be especially
careful when driving. 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.
Blind Spot Warning (BSW)
indicator
This indicator appears when the BSW system
is engaged.
For additional information, see “Blind Spot
Warning (BSW)” (P. 5-45) and “Blind Spot
Intervention® (BSI)” (P. 5-53).
Cruise control indicator
This indicator shows the cruise control sys-
tem status.
When cruise control is activated, a green
circle will appear to indicate it is set. The
vehicle information display will also display
the speed the cruise control was set at. If you
accelerate past the set speed, the speed will
blink until you either cancel cruise control or
go back to the set speed. If cruise control is on
and canceled, the speed will be displayed to
show the speed the vehicle will return to if the
resume button is activated.
Currently not available
This message appears when the VDC system
is turned off. The following systems (if so
equipped) will be turned off automatically:
BSI system, LDP system and the ProPILOT
Assist system.
2-30Instruments and controls