2023 INFINITI QX55 fuel cap

Reset Drive Mode Settings to Default:
Touch to restore all the PERSONAL mode
settings to default. For additional informa-
tion, refer to the separate INFINITI InTouch™
Owner’s Manual.
ECO MODE
The ECO mode adjusts the engine and trans-
mission to enhance fuel economy.
NOTE:
Selecting this drive mode will not necessarily
improve fuel economy as many driving fac-
tors influence its effectiveness.
Operation
Push the Drive Mode Selector switch to the
ECO position. “ECO” appears in the vehicle
information display and the ECO drive indi-
cator light illuminates on the instrument
panel. ECO mode will also be displayed in the
upper display.
When the accelerator pedal is depressed
within the range of economy drive, the ECO
drive indicator light illuminates in green.
When the accelerator pedal is depressed
above the range of economy drive, the ECO
drive indicator light turns off.The ECO drive indicator light will not illumi-
nate in the following cases:
• When the shift lever is in the R (Reverse)
position.
• When the vehicle speed is below 3 mph (4.8 km/h) or over 90 mph (144 km/h).
• When the Intelligent Cruise Control system (if so equipped) is operated.
The TSR system provides the driver with in-
formation about the most recently detected
speed limit. The system captures the road
sign information with the multi-sensing front
camera unit
O1located on the windshield in
front of the inside rearview mirror and dis-
plays the detected signs in the vehicle infor-
mation display. For vehicles equipped with a
navigation system, the speed limit displayed
is based on a combination of navigation sys-
tem data and live camera recognition. TSR
information is always displayed at the top of
the vehicle information display, and option-
ally in the main central area of the display
screen.
LSD4091
TRAFFIC SIGN RECOGNITION (TSR)
(if so equipped)
Starting and driving5-31

• Keep your engine tuned up.
• Follow the recommended scheduledmaintenance.
• Keep the tires inflated to the correct pres- sure. Low tire pressure increases tire wear
and lowers fuel economy.
• Keep all the wheels in correct alignment. Improper alignment increases tire wear and
lowers fuel economy.
• Use the recommended viscosity engine oil. For additional information, see “Recom-
mended fluids/lubricants and capacities”
(P. 10-2).
If any malfunction occurs in the Intelligent
AWD system while the engine is running,
messages are displayed in the meter.
If the AWD error warning message is dis-
played, there may be a malfunction in the
Intelligent AWD system. Reduce vehicle
speed and have your vehicle checked as soon
as possible. It is recommended that you visit
an INFINITI retailer for this service. The AWD high temperature message may be
displayed while trying to free a stuck vehicle
due to increased oil temperature. The driving
mode may change to 2-Wheel Drive (2WD).
If this message is displayed, stop the vehicle
with the engine idling, as soon as it is safe to
do so. Then if the message turns off, you can
continue driving.
LSD4249LSD4250
INCREASING FUEL ECONOMY INTELLIGENT ALL-WHEEL DRIVE
(AWD)
Starting and driving5-133

When performing any inspection or mainte-
nance work on your vehicle, always take care
to prevent serious accidental injury to your-
self or damage to the vehicle. The following
are general precautions which should be
closely observed.
WARNING
• Park the vehicle on a level surface, apply
the parking brake securely and block the
wheels to prevent the vehicle from mov-
ing. Push the park button to engage the
P (Park) position.
• Be sure the ignition switch is in the OFF
or LOCK position when performing any
parts replacement or repairs.
• If you must work with the engine run-
ning, keep your hands, clothing, hair and
tools away from moving fans, belts and
any other moving parts.
• It is advisable to secure or remove any
loose clothing and remove any jewelry,
such as rings, watches, etc. before work-
ing on your vehicle.
• Always wear eye protection whenever
you work on your vehicle.
• Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the ignition switch is in the OFF position and
the engine is not running. To avoid injury,
always disconnect the negative battery
cable before working near the fan.
• If you must run the engine in an enclosed
space such as a garage, be sure there is
proper ventilation for exhaust gases to
escape.
• Never get under the vehicle while it is
supported only by a jack. If it is necessary
to work under the vehicle, support it
with safety stands.
•
Keep smoking materials, flame and sparks
away from the fuel tank and battery.
• Because the fuel lines on gasoline engine
models are under high pressure even
when the engine is off, it is recommended
that you visit an INFINITI retailer for ser-
vice of the fuel filter or fuel lines.
CAUTION
• Do not work under the hood while the
engine is hot. Turn the engine off and
wait until it cools down.
•
Avoid contact with used engine oil and
coolant. Improperly disposed engine oil,
engine coolant and/or other vehicle fluids
can damage the environment. Always con-
form to local regulations for disposal of
vehicle fluid.
• Never leave the engine or Continuously
Variable Transmission (CVT) related
component harnesses disconnected
while the ignition switch is in the ON
position.
• Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
NOTE:
If the battery is completely drained the
transmission will not manually shift to other
positions.
This “Do-it-yourself” section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A Genuine INFINITI service manual is also
available. For additional information, see
“Owner’s Manual/Service Manual order in-
formation” (P. 10-26).
You should be aware that incomplete or im-
proper servicing may result in operating diffi-
culties or excessive emissions, and could af-
fect warranty coverage. If in doubt about any
servicing, it is recommended that you have it
done by an INFINITI retailer.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself

Radiator and hoses:Check the front of the
radiator and clean off any dirt, insects, leaves,
etc., that may have accumulated. Make sure
the hoses have no cracks, deformation, rot or
loose connections.
Underbody: The underbody is frequently ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances, oth-
erwise rust may form on the floor pan, frame,
fuel lines and around the exhaust system. At
the end of winter, the underbody should be
thoroughly flushed with plain water, being
careful to clean those areas where mud and
dirt may accumulate. For additional informa-
tion, see “Cleaning exterior” (P. 7-2).
Windshield-washer fluid*: Check that there
is adequate fluid in the reservoir. The following descriptions are provided to
give you a better understanding of the sched-
uled maintenance items that should be regu-
larly checked or replaced. The maintenance
schedule indicates at which mileage/time in-
tervals each item requires service.
In addition to scheduled maintenance, your
vehicle requires that some items be checked
during normal day-to-day operation. For ad-
ditional information, see “General mainte-
nance” (P. 9-2).
Items marked with
“*”are recommended by
INFINITI for reliable vehicle operation. You
are not required to perform maintenance on
these items in order to maintain the warran-
ties which come with your INFINITI. Other
maintenance items and intervals are required.
When applicable, additional information can
be found in the “Do-it-yourself” section of
this manual.NOTE:
INFINITI does not advocate the use of non-
OEM approved aftermarket flushing sys-
tems and strongly advises against perform-
ing these services on an INFINITI product.
Many of the aftermarket flushing systems
use non-OEM approved chemicals or sol-
vents, the use of which has not been vali-
dated by INFINITI.
For recommended fuel, lubricants, fluids,
grease, and refrigerant, see “Recommended
fluids/lubricants and capacities” (P. 10-2).
EMISSION CONTROL SYSTEM
MAINTENANCE:
Drive belt*: Check engine drive belt for wear,
fraying or cracking and for proper tension.
Replace any damaged drive belt.
Engine air filter: Replace at specified inter-
vals. When driving for prolonged periods in
dusty conditions, check/replace the filter
more frequently.
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS
Maintenance and schedules9-5

Engine coolant*:First replacement interval is
105,000 miles (168,000 km). After first re-
placement, replace every 75,000 miles
(120,000 km) or 60 months. When adding or
replacing coolant, be sure to use only Genuine
NISSAN Long Life Antifreeze/Coolant (blue)
or equivalent with the proper mixture. For
additional information on the proper mixture
for your area, see “Engine cooling system”
(P. 8-4).
NOTE: Mixing any other type of coolant or
the use of non-distilled water may reduce
the recommended service interval of the
coolant.
Engine oil and oil filter: Replace engine oil
and oil filter at the specified intervals. For
recommended oil grade and viscosity, see
“Recommended fluids/lubricants and capaci-
ties” (P. 10-2).
Engine valve clearance*: Inspect only if valve
noise increases. Adjust valve clearance if
necessary.
Evaporative emissions control vapor lines*:
Check vapor lines for leaks or looseness.
Tighten connections or replace parts as
necessary.
Fuel filter: Periodic maintenance is not re-
quired. (in-tank type filter) Fuel lines*:
Check the fuel hoses, piping and
connections for leaks, looseness, or deterio-
ration. Tighten connections or replace parts
as necessary.
Spark plugs: Replace every 105,000 miles
(168,000 km). Replace the spark plug when
the plug gap exceeds 0.045 in (1.25 mm)
even if within specified replacement mileage.
Install new plugs of the same type as origi-
nally equipped.
CHASSIS AND BODY
MAINTENANCE:
Brake lines and cables: Visually inspect for
proper installation. Check for chafing, cracks,
deterioration, and signs of leaking. Replace
any deteriorated or damaged parts
immediately.
Brake pads and rotors: Check for wear, de-
terioration and fluid leaks. Replace any dete-
riorated or damaged parts immediately.
Exhaust system: Visually inspect the exhaust
pipes, muffler and hangers for leaks, cracks,
deterioration, and damage. Tighten connec-
tions or replace parts as necessary.
In-cabin microfilter: Replace at specified in-
tervals. When driving for prolonged periods in
dusty conditions, replace the filter more
frequently. Propeller shaft(s):
Check for damage, loose-
ness, and grease leakage. (AWD)
Steering gear and linkage, axle and suspen-
sion parts, drive shaft boots: Check for dam-
age, looseness, and leakage of oil or grease.
Under severe driving conditions, inspect more
frequently.
Tire rotation: Rotate tires at the specified
interval shown in the maintenance schedule.
When rotating tires, check for damage and
uneven wear. Replace if necessary.
Transmission fluid/oil, differential oil and
transfer case oil: Visually inspect for signs of
leakage at specified intervals.
Replace at specified intervals.
9-6Maintenance and schedules

10 Technical and consumer information
Recommended fluids/lubricants and capacities . . 10-2Fuel recommendation ....................... 10-3
Engine oil and oil filter recommendations .....10-6
Air conditioner system refrigerant and oil
recommendations ........................... 10-7
Specifications .................................. 10-8
Engine ...................................... 10-8
Wheels and tires ............................ 10-9
Dimensions and weights ....................10-9
When traveling or registering in another
country ....................................... 10-10
Vehicle identification .......................... 10-10
Vehicle Identification Number (VIN) plate . . . 10-10
Vehicle identification number
(chassis number) ........................... 10-10
Engine serial number ....................... 10-11
F.M.V.S.S./C.M.V.S.S. certification label .....10-11
Emission control information label ..........10-11
Tire and Loading Information label ..........10-12
Air conditioner specification label ...........10-12 Installing front license plate
....................10-13
Vehicle loading information ....................10-15
Terms ..................................... 10-15
Vehicle load capacity ....................... 10-16
Securing the load .......................... 10-18
Loading tips ............................... 10-18
Measurement of weights ...................10-19
Towing a trailer ............................... 10-19
Flat towing for all–wheel drive vehicle ......10-20
Uniform tire quality grading ...................10-21
Emission control system warranty .............10-22
Reporting safety defects ......................10-22
Readiness for Inspection/Maintenance (I/M)
test .......................................... 10-24
Event Data Recorders (EDR) ..................10-24
Additional Data Recording (on vehicles
equipped with optional ProPILOT Assist) . . . 10-25
Owner's Manual/Service Manual order
information ................................... 10-26

The following are approximate capacities. The actual refill capacities may be slightly different. When refilling, follow the procedure described
in the “Do-it-yourself” section to determine the proper refill capacity.
Fluid TypeCapacity (approximate)
Recommended Fluids/Lubricants
Metric
Measure US
Measure Imperial
Measure
Fuel 60 L 15-7/8 gal 13-1/4 gal • For additional information, see “Fuel recommendation” (P. 10-3).
Engine oil*1
Drain and refill
*1 For additional information,
see “Engine oil” (P. 8-6). With oil filter
change 4.7 L 5 qt 4-1/8 qt • Genuine “NISSAN Motor Oil 0W-20 SP” (or equivalent) is recom-
mended.
• If the above motor oil (or engine oil) is not available, a synthetic
0W-20 GF-6 SP motor oil (or engine oil) may be used. Damage caused
by the use of motor oil (or engine oil) other than as recommended is not
covered under INFINITI’s New Vehicle Limited Warranty. For addi-
tional information, see “Engine oil and oil filter recommendations”
(P. 10-6).
Without oil filter
change 4.6 L 4-7/8 qt 4 qt
Engine coolant
(with reservoir) 7.7 L 2 gal 1-3/4 gal• Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or
equivalent
Continuously Variable Transmission (CVT) fluid —— —• Genuine NISSAN CVT Fluid NS-3
• INFINITI recommends using Genuine NISSAN CVT Fluid NS-3 (or
equivalent) ONLY in INFINITI CVTs. Do not mix with other fluids. Using
fluids that are not equivalent to Genuine NISSAN CVT Fluid NS-3 may
damage the CVT. Damage caused by the use of fluids other than as
recommended is not covered under INFINITI’s New Vehicle Limited
Warranty outlined in your Warranty Information Booklet.
Differential gear oil —— — • Genuine NISSAN HYPOID FLUID•S1 GL-5 75W-80 or equivalent
Transfer oil —— —• Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or
equivalent conventional (non-synthetic) oil
Brake fluid —— —• Genuine NISSAN Super Heavy Duty Brake Fluid*2 or equivalent DOT
3.
*2: Available in mainland U.S.A. through an INFINITI retailer
Multi-purpose grease —— — • NLGI No. 2 (Lithium Soap base)
RECOMMENDED FLUIDS/
LUBRICANTS AND CAPACITIES
10-2Technical and consumer information

Fluid TypeCapacity (approximate)
Recommended Fluids/Lubricants
Metric
Measure US
Measure Imperial
Measure
Air conditioning system refrigerant —— —• HFO-1234yf (R-1234yf)
• For additional information, see “Air conditioner system refrigerant and
oil recommendations” (P. 10-7).
Air conditioning system oil —— —• Genuine NISSAN A/C System oil Type PAG (ND-OIL12) or equivalent
• For additional information, see “Air conditioner system refrigerant and
oil recommendations” (P. 10-7).
Windshield-washer fluid 5 L 1-3/8 gal 1-1/8 gal• Genuine NISSAN Windshield Washer Concentrate Cleaner & Anti-
freeze fluid or equivalent
FUEL RECOMMENDATION
Use unleaded premium gasoline with an oc-
tane rating of at least 91 AKI (Anti-Knock
Index) number (Research octane number 96).
If unleaded premium gasoline is not available,
unleaded regular gasoline with an octane rat-
ing of at least 87 AKI number (Research oc-
tane number 91) may be temporarily used,
but only under the following precautions:
• Have the fuel tank filled only partially with
unleaded regular gasoline, and fill up with
unleaded premium gasoline as soon as
possible.
• Avoid full throttle driving and abrupt acceleration.
Use unleaded premium gasoline for maxi-
mum vehicle performance.
CAUTION
• Using a fuel other than that specified
could adversely affect the emission con-
trol system, and may also affect the war-
ranty coverage.
• Under no circumstances should a leaded
gasoline be used, because this will dam-
age the three-way catalyst. •
Do not use a fuel containing more than
15% ethanol in your vehicle. Your vehicle
is not designed to run on a fuel contain-
ing more than 15% ethanol. Using a fuel
containing more than 15% ethanol in a
vehicle not specifically designed for a
fuel containing more than 15% ethanol
can adversely affect the emission control
devices and systems of the vehicle. Dam-
age caused by such fuel is not covered by
the INFINITI New Vehicle Limited
Warranty.
Technical and consumer information10-3