service indicator INFINITI QX55 2023 Owner's Manual

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 using a wheel without the TPMS
such as the spare tire, when a spare tire is
mounted or a wheel is replaced, tire pres-
sure will not be indicated, 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 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
warning 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 contains licence-exempt
transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic Develop-
ment Canada’s licence-exempt RSS(s). Op-
eration is subject to the following two con-
ditions: (1) This device may not cause
interference. (2) This device must accept any
interference, including interference that
may cause undesired 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.
Starting and driving5-7

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.
Failure to operate the vehicle in accor-
dance with these conditions could cause
the vehicle to move or roll away unex-
pectedly and result in serious personal
injury or property damage.
– A warning message appears.
– The indicator light on the automatic
brake hold switch does not illuminate
when the switch is pushed.
• The automatic brake hold function will
not be activated if the Slip indicator
light, electronic parking brake warning
light or master warning light illuminate
and the chassis control system fault
message appears in the vehicle informa-
tion display.
• To maintain the braking force to keep
the vehicle to a standstill, a noise may be
heard. This is not a malfunction.
HOW TO ACTIVATE/
DEACTIVATE THE AUTOMATIC
BRAKE HOLD FUNCTION
For additional information on activating and
deactivating the automatic brake hold func-
tion, refer to the instructions outlined in this
section.
How to activate the automatic
brake hold function
1. With the ignition switch in the ON posi- tion, push the automatic brake hold switch
O1. The indicator light on the automatic
brake hold switch
O2illuminates. 2. When the automatic brake hold function
goes into standby, the automatic brake
hold indicator light (white) illuminates.
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.
NOTE:
The automatic brake hold function retains
the last state even if the engine is restarted.
How to deactivate the automatic
brake hold function
While the automatic brake hold function is
activated, push the automatic brake hold
switch to turn off the automatic brake hold
indicator light and deactivate the automatic
brake hold function. To deactivate the auto-
matic brake hold function while the brake
force has been maintained by the automatic
brake hold function, depress the brake pedal
and push the automatic brake hold switch.
LSD2916
Starting and driving5-27

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

ICC system malfunction
If the ICC system malfunctions, it will be
turned off automatically, a chime will sound,
and the speed control status warning (or-
ange) will illuminate.
Action to take:
If the warning light comes on, stop the vehicle
in a safe place. Turn the engine off, restart
the engine and set the ICC system again. If it
is not possible to set the ICC system or the
indicator stays on, it may be a malfunction.
Although the normal driving can be contin-
ued, the ICC system should be inspected. It isrecommended that you visit an INFINITI re-
tailer for this service.
NOTE:
If the ICC system is temporarily unavailable,
the conventional cruise control mode may
still be used. For additional information, see
“Conventional (fixed speed) cruise control
mode” (P. 5-101).
ICC sensor maintenance
The radar sensor is located on the front of the
vehicle.
To keep the ICC system operating properly,
be sure to observe the following:
• Always keep the sensor area clean.
• Do not strike or damage the areas around
the sensor.
• Do not attach a sticker (including transpar- ent material) or install an accessory near
the sensor. This could cause failure or
malfunction.
• Do not attach metallic objects near the sensor area (brush guard, etc.). This could
cause failure or malfunction.
• Do not alter, remove, or paint the front bumper. Before customizing or restoring the front
bumper, it is recommended that you visit an
INFINITI retailer.
The camera sensor is located above the in-
side mirror.
To keep the proper operation of the systems
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.
LSD4448
5-94Starting and driving

return to normal. Avoid repeating such steer-
ing wheel operations that could cause the
power steering system to overheat.
You may hear a sound when the steering
wheel is operated quickly. However, this is
not a malfunction.
If the power steering warning light illumi-
nates while the engine is running, it may indi-
cate the power steering system is not func-
tioning properly and may need servicing.
Have the power steering system checked. It is
recommended that you visit an INFINITI re-
tailer for this service.
When the power steering warning light illu-
minates with the engine running, there will be
no power assist for the steering, but you will
still have control of the vehicle. At this time,
greater steering effort is required to operate
the steering wheel, especially in sharp turns
and at low speeds.
For additional information, see “Power steer-
ing warning light” (P. 2-16).DIRECT ADAPTIVE STEERING®
TYPE
WARNING
• When the power steering warning light
illuminates with the engine running, the
power assist for the steering will cease
operation. You will still have control of
the vehicle, but the steering will be
harder to operate.
• If wheels or tires other than the INFINITI
recommended ones are used, Direct
Adaptive Steering® may not operate
properly and the power steering warning
light may illuminate.
• Do not modify the vehicle’s suspension
parts such as shock absorbers, struts,
springs, stabilizer bars, bushings and
wheels are not INFINITI recommended
for your vehicle or are extremely deterio-
rated, Direct Adaptive Steering may not
operate properly and the power steering
warning light may illuminate.
• Do not modify the vehicle’s steering. If
steering parts are not INFINITI recom-
mended for your vehicle or are extremely
deteriorated, Direct Adaptive Steering
may not operate properly and the power
steering warning light may illuminate. •
If the Vehicle Dynamic Control (VDC)
OFF indicator light illuminates, the
power steering warning light may also
illuminate at the same time. Stop the ve-
hicle in a safe location, turn the engine
off and restart the engine. If the power
steering warning light continues to illu-
minate, have the system checked. It is
recommended that you visit an INFINITI
retailer for this service. For additional in-
formation, see “Vehicle Dynamic Control
(VDC) system” (P. 5-141).
CAUTION
• Do not place the ignition switch in the
ON position while the steering wheel or a
tire is removed.
• Do not turn the steering wheel as much
as possible while the ignition switch is
any position other than the ON position.
• Installing an accessory on the steering
wheel, or changing the steering wheel,
may reduce the steering performance.
Direct Adaptive Steering is designed to con-
trol the steering force and steering angle ac-
cording to the vehicle speed and amount of
turning of the steering wheel.
Starting and driving5-137

To shut off the engine in an emergency situ-
ation while driving, perform the following
procedure:
– Rapidly push the push-button ignitionswitch three consecutive times in less than
1.5 seconds, or
– Push and hold the push-button ignition switch for more than 2 seconds.TIRE PRESSURE MONITORING
SYSTEM (TPMS)
This vehicle is equipped with Tire Pressure
Monitoring System (TPMS). It monitors tire
pressure of all tires. When the low tire pres-
sure warning light is lit, and the “Tire Pressure
Low - Add Air” or “Flat Tire-Visit dealer” (if so
equipped) warning appears in the vehicle in-
formation display, one or more of your tires is
significantly under-inflated. The system also
displays pressure of all tires (except the spare
tire) on the vehicle information display screen
by sending a signal from a sensor that is
installed in each wheel. If the vehicle is being
driven with low tire pressure, the TPMS will
activate and warn you of it by the low tire
pressure warning light. This system will acti-
vate only when the vehicle is driven at speeds
above 16 mph (25 km/h). For additional in-
formation, see “Warning lights, indicator
lights and audible reminders” (P. 2-9) and
“Tire Pressure Monitoring System (TPMS)”
(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 low tire pressure warning light illu-
minates 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. Driving with under-
inflated tires may permanently 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 personal injury.
Check the tire pressure for all four tires.
Adjust the tire pressure to the recom-
mended COLD tire pressure shown on
the Tire and Loading Information label to
turn the low tire pressure 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 replacement tire as soon
as possible. If no tires are flat and all tires
are properly inflated, have the vehicle
checked. It is recommended that you
visit an INFINITI retailer for this service.
EMERGENCY ENGINE SHUT OFF FLAT TIRE
In case of emergency6-3

Rear window wiper blade
If checking or replacement is required, it is
recommended that you visit an INFINITI re-
tailer for this service.If the brakes do not operate properly, it is
recommended that you have the brakes
checked. It is recommended that you visit an
INFINITI retailer for this service.
Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front and rear disc-type brakes self-
adjust every time the brake pedal is applied.
WARNING
Have your brake system checked if the
brake pedal height does not return to nor-
mal. It is recommended that you visit an
INFINITI retailer for this service.
Brake pad wear indicators
The disc brake pads on your vehicle have
audible wear indicators. When a brake pad
requires replacement, a high pitched scraping
or screeching sound will be heard when the
vehicle is in motion. The noise will be heard
whether or not the brake pedal is depressed.
Have the brakes checked as soon as possible
if the wear indicator sound is heard. Under some driving or climate conditions, oc-
casional brake squeak, squeal or other noise
may be heard. Occasional brake noise during
light to moderate stops is normal and does
not affect the function or performance of the
brake system.
Proper brake inspection intervals should be
followed.
For additional information regard-
ing brake inspections, refer to the appropri-
ate maintenance schedule information in the
"Maintenance and schedules" section of this
manual.
BRAKES
Do-it-yourself8-19

Tire wear and damage
1. Wear indicator
2. Location mark
WARNING
• Tires should be periodically in-
spected for wear, cracking, bulg-
ing or objects caught in the tread.
If excessive wear, cracks, bulging
or deep cuts are found, the tire(s)
should be replaced. •
The original tires have built-in
tread wear indicators. When the
wear indicators are visible, the
tire(s) should be replaced.
• Tires degrade with age and use.
Have tires, including the spare,
over 6 years old checked by a
qualified technician because some
tire damage may not be obvious.
Replace the tires as necessary to
prevent tire failure and possible
personal injury.
• Improper service of the spare tire
may result in serious personal in-
jury. If it is necessary to repair the
spare tire, it is recommended that
you visit an INFINITI retailer for
this service.
• For additional information re-
garding tires, refer to “Important
Tire Safety Information” (US) or
“Tire Safety Information”
(Canada) in the Warranty Infor-
mation Booklet.
Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load carrying
capacity as originally equipped. For addi-
tional information, see “Wheels and tires”
(P. 10-9).
WARNING
• The use of tires other than those recom-
mended or the mixed use of tires of dif-
ferent brands, construction (bias, bias-
belted or radial), or tread patterns can
adversely affect the ride, braking, han-
dling, VDC system, ground clearance,
body-to-tire clearance, tire chain clear-
ance, speedometer calibration, headlight
aim and bumper height. Some of these
effects may lead to accidents and could
result in serious personal injury.
• For 2WD models, if your vehicle was
originally equipped with four tires that
were the same size and you are only re-
placing two of the four tires, install the
new tires on the rear axle. Placing new
tires on the front axle may cause loss of
vehicle control in some driving condi-
tions and cause an accident and personal
injury.
WDI0259
Do-it-yourself8-39

Seat beltChild safety................ .1-19Infants and small children.....1-19, 1-20Injured person................1-15Larger children...............1-20Precautions on seat belt usage......1-11Pregnant women..............1-14Seat belt extenders............1-18Seat belt maintenance...........1-18Seat belts.............. .1-11, 7-6Three-point type with retractor.....1-15Seat belt extenders..............1-18Seat belt warning light........1-14, 2-12Seatback pockets.............. .2-58Seats
Adjustment................. .1-2Armrests................... .1-5Front seats..................1-2Heated seats................2-49Rear bench seat...............1-4Seats/floor mats............... .7-5Security indicator light............2-12Security system
(INFINITI vehicle immobilizer system),
engine start
..........2-34, 3-4, 5-16Security systemsVehicle security system..........2-33Self-adjusting brakes............ .8-19Service manual order form.........10-26Servicing air conditioner...........4-41Spark plug replacement...........8-15Spark plugs.................. .8-15
Specifications.................10-8Speedometer...............2-4, 2-5SRS warning label...............1-61Stability control...............5-141Standard maintenance.............9-9Starting
Before starting the engine........5-16Jump starting............ .6-5, 8-14Precautions when starting and
driving................ .5-4, 5-10Push starting.................6-7Starting the engine.............5-16Starting the engine............. .5-16Steering
Power steering system.....5-136, 5-137Steering Assist switch........... .2-51Steering wheel................ .3-32Stop light................... .8-25Storage.................... .2-57Storage tray..............2-58, 2-59Sun visors................... .3-33Sunglasses case................2-60Sunglasses holder...............2-60Sunroof................. .2-67, 7-5Supplemental air bag warning labels. . . .1-61Supplemental air bag warning
light.................. .1-62, 2-12Supplemental front impact air bag
system.................... .1-49Supplemental restraint system
Information and warning labels.....1-61Precautions on supplemental restraint
system................... .1-41
Supplemental restraint system
(Supplemental air bag system)........1-41Switch
Autolight switch............. .2-41Automatic power window switch. . . .2-67Fog light switch..............2-47Hazard warning flasher switch......6-2Headlight aiming control.........2-45Headlight and turn signal switch. . . .2-40Instrument brightness control......2-46Power door lock switch...........3-5Rear window wiper and washer
switches.................. .2-38Turn signal switch.............2-46
T
Tachometer.................. .2-6Temperature gauge
Engine coolant temperature gauge. . . .2-6Theft(INFINITI vehicle immobilizer system),
engine start
..........2-34, 3-4, 5-16Three-way catalyst.............. .5-4Tire
Flat tire................... .6-3Tire and Loading Information label. .10-12Tire chains..................8-37Tire pressure................8-27Tire rotation................8-38Types of tires................8-35
11-6