ESP INFINITI QX55 2023 Workshop Manual

When the vehicle is stopped on a hill, the hill
start assist system automatically keeps the
brakes applied to help prevent the vehicle
from rolling backward in the time it takes the
driver to release the brake pedal and apply
the accelerator.
The hill start assist system will operate auto-
matically under the following conditions:
• The transmission is shifted to a forward orreverse gear.
• The vehicle is stopped completely on a hill by applying the brake. The maximum hold-
ing time is 2 seconds. After 2 seconds the
vehicle will begin to roll back and the hill
start assist system will stop operating
completely.
The hill start assist system will not operate
when the shift lever is placed in the N (Neu-
tral), the Park button is pressed to place the
vehicle in the P (Park) position or on a flat and
level road.
The Hill Start Assist function status can be
checked in the “Chassis Control” mode in the
vehicle information display. For additional in-
formation, see “Vehicle information display”
(P. 2-19). The sonar system sounds a tone to inform the
driver of obstacles near the bumper.
When the sonar system is turned on, the
sonar view will automatically appear in the
touch screen display when the camera is
activated.
WARNING
• The sonar system is a convenience but it
is not a substitute for proper parking.
• The driver is always responsible for
safety during parking and other maneu-
vers. Always look around and check that
it is safe to do so before parking.
LSD4775LSD2993
FRONT AND REAR SONAR SYSTEM
(if so equipped)
Starting and driving5-147

In order to maintain the appearance of your
vehicle, it is important to take proper care of
it.
To protect the paint surfaces, wash your ve-
hicle as soon as you can:
• After a rainfall to prevent possible damagefrom acid rain.
• After driving on coastal roads.
• When contaminants such as soot, bird droppings, tree sap, metal particles or bugs
get on the paint surface.
• When dust or mud builds up on the surface.
Whenever possible, store or park your vehicle
inside a garage or in a covered area.
When it is necessary to park outside, park in a
shady area or protect the vehicle with a body
cover.
Be careful not to scratch the paint surface
when putting on or removing the body cover.
WASHING
Wash dirt off with a wet sponge and plenty
of water. Clean the vehicle thoroughly using a
mild soap, a special vehicle soap or general
purpose dishwashing liquid mixed with clean,
lukewarm (never hot) water.
CAUTION
• Do not concentrate water spray directly
on the sonar sensors (if so equipped) on
the bumper as this will result in damage
to the sensors. Do not use pressure
washers capable of spraying water over
1,200 psi (8,274 kPa) to wash your ve-
hicle. Use of high-pressure washers over
1,200 psi (8,274 kPa) can result in dam-
age to or removal of paint or graphics.
Avoid using a high-pressure washer
closer than 12 inches (30 cm) to the ve-
hicle. Always use a wide-angle nozzle
only, keep the nozzle moving and do not
concentrate the water spray on any one
area.
• Do not use car washes that use acid in the
detergent. Some car washes, especially
brushless ones, use some acid for clean-
ing. The acid may react with some plastic
vehicle components, causing them to
crack. This could affect their appear-
ance, and also could cause them not to
function properly. Always check with
your car wash to confirm that acid is not
used.
• Do not wash the vehicle with strong
household soap, strong chemical deter-
gents, gasoline or solvents. •
Do not wash the vehicle in direct sunlight
or while the vehicle body is hot, as the
surface may become water-spotted.
• Avoid using tight-napped or rough
cloths, such as washing mitts. Care must
be taken when removing caked-on dirt
or other foreign substances so the paint
surface is not scratched or damaged.
Rinse the vehicle thoroughly with plenty of
clean water.
Inside edges, seams and folds on the doors,
hatches and hood are particularly vulnerable
to the effects of road salt. Therefore, these
areas must be cleaned regularly. Take care
that the drain holes in the lower edge of the
door are open. Spray water under the body
and in the wheel wells to loosen the dirt and
wash away road salt.
A damp chamois can be used to dry the ve-
hicle to avoid water spots.
WAXING
Regular waxing protects the paint surface
and helps retain new vehicle appearance.
Polishing is recommended to remove built-up
wax residue and to avoid a weathered ap-
pearance before re-applying wax.
An INFINITI retailer can assist you in choos-
ing the proper product.
CLEANING EXTERIOR
7-2Appearance and care

• Wax your vehicle only after a thoroughwashing. Follow the instructions supplied
with the wax.
• Do not use a wax containing any abrasives, cutting compounds or cleaners that may
damage the vehicle finish.
Machine compounding or aggressive polish-
ing on a base coat/clear coat paint finish may
dull the finish or leave swirl marks.
REMOVING SPOTS
Remove tar and oil spots, industrial dust, in-
sects, and tree sap as quickly as possible from
the surface of the paint to avoid lasting dam-
age or staining. Special cleaning products are
available at an INFINITI retailer or any auto-
motive accessory store. It is recommended
that you visit an INFINITI retailer for these
products.
UNDERBODY
In areas where road salt is used in winter, it is
necessary to clean the underbody regularly in
order to prevent dirt and salt from building up
and causing the acceleration of corrosion on
the underbody and suspension. Before the
winter period and again in the spring, the
underseal must be checked and, if necessary,
re-treated.
GLASS
Use glass cleaner to remove smoke and dust
film from the glass surfaces. It is normal for
glass to become coated with a film after the
vehicle is parked in the hot sun. Glass cleaner
and a soft cloth will easily remove this film.
CAUTION
When cleaning the inside of the windows,
do not use sharp-edged tools, abrasive
cleaners or chlorine-based disinfectant
cleaners. They could damage the electrical
conductors, radio antenna elements or rear
window defroster elements.
ALUMINUM ALLOY WHEELS
Wash the wheels regularly with a sponge
dampened in a mild soap solution, especially
during winter months in areas where road
salt is used. If not removed, road salt can
discolor the wheels.
CAUTION
Follow the directions below to avoid stain-
ing or discoloring the wheels:
• Do not use a cleaner that uses strong acid
or alkali contents to clean the wheels.
• Do not apply wheel cleaners to the
wheels when they are hot. The wheel
temperature should be the same as am-
bient temperature.
• Rinse the wheel to completely remove
the cleaner within 15 minutes after the
cleaner is applied.
CHROME PARTS
Clean all chrome parts regularly with a non-
abrasive chrome polish to maintain the finish.
CAUTION
Follow the directions below to avoid stain-
ing or discoloring the chrome parts:
• Do not use a cleaner that uses strong acid
or alkali contents to clean the chrome
parts.
Appearance and care7-3

WARNING
Do not allow wet seat belts to roll up in the
retractor. NEVER use bleach, dye or
chemical solvents to clean the seat belts,
since these materials may severely weaken
the seat belt webbing.
CLEANING THE SEAT TRACKS
CAUTION
Periodically clean the seat tracks to pre-
vent reduction of ability to move the seats.
Clean periodically with a high-powered
vacuum cleaner. Dirt and debris may reduce
the ability to adjust the seat. A wet cleansing
agent may be used if necessary.
MOST COMMON FACTORS
CONTRIBUTING TO VEHICLE
CORROSION
Most vehicle corrosion is caused by:
• The accumulation of moisture-retaining dirt and debris in body panel sections, cavi-
ties, and other areas.
• Damage to paint and other protective coatings caused by gravel and stone chips
or minor traffic collisions.
• The use of chloride detergents.
ENVIRONMENTAL FACTORS
INFLUENCE THE RATE OF
CORROSION
Moisture
Accumulation of sand, dirt and water on the
vehicle body underside can accelerate corro-
sion. Wet floor coverings will not dry com-
pletely inside the vehicle and should be re-
moved for drying to avoid floor panel
corrosion.
Relative humidity
Corrosion will be accelerated in areas of high
relative humidity, especially those areas
where the temperatures stay above freezing
and where atmospheric pollution exists and
road salt is used.
Temperature
High temperatures accelerate the rate of cor-
rosion to those parts which are not well
ventilated.
Air pollution
Industrial pollution, the presence of salt in the
air in coastal areas, or heavy road salt use
accelerates the corrosion process. Road salt
also accelerates the disintegration of paint
surfaces.
CORROSION PROTECTION
Appearance and care7-7

including interference that may cause unde-
sired operation.
Note:
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.
For Canada:
This device contains license-exempt
transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic Develop-
ment Canada’s license-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.HEADLIGHTS
For additional information on headlight bulb
replacement, refer to the instructions out-
lined in this section.
Replacing the LED headlight bulb
If LED headlight bulb replacement is re-
quired, it is recommended that you visit an
INFINITI retailer for this service.
FOG LIGHTS
For additional information on fog light bulb
replacement, refer to the instructions out-
lined in this section.
Replacing the LED fog light bulb
If LED fog light bulb replacement is required,
it is recommended that you visit an INFINITI
retailer for this service.
LIGHTS
8-24Do-it-yourself

Some day-to-day and regular maintenance is
essential to maintain your vehicle good me-
chanical condition, as well as its emissions
and engine performance.
It is the owner's responsibility to make sure
that the scheduled maintenance, as well as
general maintenance, is performed.
As the vehicle owner, you are the only one
who can ensure that your vehicle receives
proper maintenance. You are a vital link in the
maintenance chain.
GENERAL MAINTENANCE
General maintenance includes those items
which should be checked during normal day-
to-day operation. They are essential for
proper vehicle operation. It is your responsi-
bility to perform these procedures regularly
as prescribed.
Performing general maintenance checks re-
quires minimal mechanical skill and only a few
general automotive tools.
These checks or inspections can be done by
yourself, a qualified technician or, if you pre-
fer, an INFINITI retailer.
SCHEDULED MAINTENANCE
The maintenance items listed in this section
are required to be serviced at regular inter-
vals. However under severe driving condi-
tions, additional or more frequent mainte-
nance will be required.
WHERE TO GO FOR SERVICE
If maintenance service is required or your
vehicle appears to malfunction, have the sys-
tems checked and serviced. It is recom-
mended that you visit an INFINITI retailer for
this service.
INFINITI technicians are well-trained spe-
cialists and are kept up-to-date with the lat-
est service information through technical bul-
letins, service tips and training programs.
They are fully qualified to work on INFINITI
vehiclesbeforework begins.
If your vehicle is involved in a collision, it is
recommended that you ask your INFINITI
retailer where the nearest INFINITI Certified
Collision Center is located, or go to
http://collision.infinitiusa.com.
You can be confident that an INFINITI retail-
er’s service department can perform the ser-
vice needed to meet the maintenance re-
quirements on your vehicle. During the normal day-to-day operation of
the vehicle, general maintenance should be
performed regularly as prescribed in this sec-
tion. If you detect any unusual sounds, vibra-
tions or smells, be sure to check for the cause
or have it checked promptly. In addition, it is
recommended that you visit an INFINITI re-
tailer if you think that repairs are required.
When performing any checks or maintenance
work, see “Maintenance precautions”
(P. 8-2).
EXPLANATION OF GENERAL
MAINTENANCE ITEMS
WARNING
Failure to follow the procedures listed
within this section may result in personal
injury.
Additional information on the following
items with“*”isfound in the “Do-it-
yourself” section of this manual.
Outside the vehicle
The maintenance items listed here should be
performed from time to time, unless other-
wise specified.
MAINTENANCE REQUIREMENTS GENERAL MAINTENANCE
9-2Maintenance and schedules

To help ensure smooth, safe and economical
driving, INFINITI provides two maintenance
schedules that may be used, depending upon
the conditions in which you usually drive.
These schedules contain both distance and
time intervals, up to 90,000 miles (144,000
km)/144 months. For most people, the
odometer reading will indicate when service
is needed. However, if you drive very little,
your vehicle should be serviced at the regular
time intervals shown in the schedule.
After 90,000 miles (144,000 km)/144
months, continue maintenance at the same
mileage/time intervals.ADDITIONAL MAINTENANCE
ITEMS FOR SEVERE OPERATING
CONDITIONS
Additional maintenance items for severe op-
erating conditionsshould be performed on
vehicles that are driven under especially de-
manding conditions. Additional maintenance
items should be performed if you primarily
operate your vehicle under the following
conditions:
• Repeated short trips of less than 5 miles (8 km).
• Repeated short trips of less than 10 miles (16 km) with outside temperatures remain-
ing below freezing.
• Operating in hot weather in stop-and-go “rush hour” traffic. • Extensive idling and/or low speed driving
for long distances, such as police, taxi or
door-to-door delivery use.
• Driving in dusty conditions.
• Driving on rough, muddy or salt spread roads.
• Using a car-top carrier.
If your vehicle is mostly operated under the
severe conditions, follow the severe use
maintenance intervals shown in the mainte-
nance schedule.
MAINTENANCE SCHEDULES
Maintenance and schedules9-7

E–15 fuel
E-15 fuel is a mixture of approximately 15%
fuel ethanol and 85% unleaded gasoline.
E-15 can only be used in vehicles designed to
run on E-15 fuel. U.S. government regula-
tions require fuel ethanol dispensing pumps
to be identified with small, square, orange
and black label with the common abbrevia-
tion or the appropriate percentage for that
region.
E–85 fuel
E-85 fuel is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline.
E-85 can only be used in a Flexible Fuel Ve-
hicle (FFV). Do not use E-85 in your vehicle.
U.S. government regulations require fuel
ethanol dispensing pumps to be identified by
a small, square, orange and black label with
the common abbreviation or the appropriate
percentage for that region.
Fuel containing MMT
MMT, or methylcyclopentadienyl manganese
tricarbonyl, is an octane boosting additive.
INFINITI does not recommend the use of fuel
containing MMT. Such fuel may adversely
affect vehicle performance, including the
emissions control system. Note that while
some fuel pumps label MMT content, not all
do, so you may have to consult your gasoline
retailer for more details.
Aftermarket fuel additives
INFINITI does not recommend the use of any
aftermarket fuel additives (for example, fuel
injector cleaner, octane booster, intake valve
deposit removers, etc.) which are sold com-
mercially. Many of these additives intended
for gum, varnish or deposit removal may con-
tain active solvents or similar ingredients that
can be harmful to the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane rat-
ing lower than recommended can cause per-
sistent, heavy “spark knock.” (“Spark knock”
is a metallic rapping noise.) If severe, this can
lead to engine damage. If you detect a per-
sistent heavy spark knock even when using
gasoline of the stated octane rating, or if you
hear steady spark knock while holding a
steady speed on level roads, it is recom-
mended that you have an INFINITI retailer
correct the condition. Failure to correct the
condition is misuse of the vehicle, for which
INFINITI is not responsible.
Incorrect ignition timing may result in spark
knock, after-run and/or overheating, which
may cause excessive fuel consumption or en-
gine damage. If any of the above symptoms
are encountered, have your vehicle checked.
It is recommended that you visit an INFINITI
retailer.
However, now and then you may notice light
spark knock for a short time while accelerat-
ing or driving up hills. This is not a cause for
concern, because you get the greatest fuel
benefit when there is light spark knock for a
short time under heavy engine load.
Technical and consumer information10-5

When planning to drive your INFINITI ve-
hicle in another country,you should first find
out if the fuel available is suitable for your
vehicle's engine.
Using fuel with an octane rating that is too
low may cause engine damage. All gasoline
vehicles must be operated with unleaded
gasoline. Therefore, avoid taking your vehicle
to areas where appropriate fuel is not
available.
When transferring the registration of your
vehicle to another country, state, province
or district, it may be necessary to modify the
vehicle to meet local laws and regulations.
The laws and regulations for motor vehicle
emission control and safety standards vary
according to the country, state, province or
district; therefore, vehicle specifications may
differ.
When any vehicle is to be taken into another
country, state, province or district and reg-
istered, its modifications, transportation,
and registration are the responsibility of the
user. INFINITI is not responsible for any in-
convenience that may result.
VEHICLE IDENTIFICATION
NUMBER (VIN) PLATE
The VIN plate is located as shown. This num-
ber is the identification for your vehicle and is
used in the vehicle registration.
The VIN number is also available through the
center display screen. For additional informa-
tion, refer to the separate INFINITI InTouch™
Owner's Manual.
VEHICLE IDENTIFICATION
NUMBER (chassis number)
The vehicle identification number is located
as shown.
LTI2050LTI2332
WHEN TRAVELING OR
REGISTERING IN ANOTHER
COUNTRY VEHICLE IDENTIFICATION
10-10Technical and consumer information

DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform
to federal safety requirements in addition to
these grades.
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one and
one-half (1 1/2) times as well on the govern-
ment course as a tire graded 100. The rela-
tive performance of tires depends upon the
actual conditions of their use, however, and
may depart significantly from the norm due
to variations in driving habits, service prac-
tices and differences in road characteristics
and climate.
Traction AA, A, B and C
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades represent
the tire's ability to stop on wet pavement as
measured under controlled conditions onspecified government test surfaces of as-
phalt and concrete. A tire marked C may have
poor traction performance.
WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
Temperature A, B and C
The temperature grades are A (the highest),
B, and C, representing the tire’s resistance to
the generation of heat, and its ability to dis-
sipate heat when tested under controlled
conditions on a specified indoor laboratory
test wheel. Sustained high temperature can
cause the material of the tire to degenerate
and reduce tire life, and excessive tempera-
ture can lead to sudden tire failure. The grade
C corresponds to a level of performance
which all passenger car tires must meet under
the Federal Motor Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
WARNING
The temperature grade for this tire is es-
tablished for a tire that is properly inflated
and not overloaded. Excessive speed,
under-inflation, or excessive loading, ei-
ther separately or in combination, can
cause heat build-up and possible tire
failure.
UNIFORM TIRE QUALITY GRADING
Technical and consumer information10-21