cooling INFINITI QX50 2023 Owners Manual

LOG-IN FUNCTION
After setting up the user information, the
system will automatically recognize the user
upon turning on the vehicle.
There will be a personalized welcome greet-
ing and screen prompt to log in.
This feature allows four drivers to use their
own registration, drive mode, driving posi-
tion, air conditioner, and auto settings and
memorizes these custom settings.
The log-in user can be changed on the wel-
come greeting screen or the User List screen.
For additional information, refer to the sepa-
rate INFINITI InTouch® Owner’s Manual.
The log-in function is linked to the following
features:
• Meter
• Audio
• Navigation system display
• Navigation settings
• Air conditioner
• Memory seat (if so equipped)
• Engine/Transmission
• Steering
• Active Trace Control• Driver assistance except for the Forward
Emergency Braking (FEB) with Pedestrian
Detection system (if so equipped)
• Active Engine Brake
• Head Up Display (HUD) (if so equipped)
• Vehicle Settings
The
button will be on the INFINITI
Intelligent Key if the vehicle has Remote
Engine Start. This feature allows the engine
to start from outside the vehicle.
The following features may be affected when
the Remote Engine Start feature is used:
• Vehicles with an automatic climate control system may default to either a heating or
cooling mode depending on outside and
cabin temperatures. For additional infor-
mation, see “Remote Engine Start with In-
telligent Climate Control” in the (P. 4-36).
LPD2995
REMOTE ENGINE START
3-18Pre-driving checks and adjustments

1. Lower touch-screen display (lower display)
2.
Temperature control increase button
(passenger’s side)
3.
Temperature control decrease button
(passenger’s side)
4.
Air recirculation button
5.
Front defroster button 6.
Rear window and outside mirror
defroster switch
7. ON-OFF button
8.
Heated seat switches (if so equipped)
9.
Climate controlled seat switches (if so
equipped)
10.
CLIMATE button 11.
MENU button
12.
Manual air flow control button
13.
Fan speed decrease button
14.
Fan speed increase button
15. AUTO button
16.
Temperature control decrease button
(driver’s side)
17.
Temperature control increase button
(driver’s side)
WARNING
• The air conditioner cooling function op-
erates only when the engine is running.
• Do not leave children or adults who
would normally require the assistance of
others alone in your vehicle. Pets should
also not be left alone. They could acci-
dentally injure themselves or others
through inadvertent operation of the
vehicle. Also, on hot, sunny days, tem-
peratures in a closed vehicle could
quickly become high enough to cause
severe or possibly fatal injuries to people
or animals.
• Do not use the recirculation mode for
long periods as it may cause the interior
air to become stale and the windows to
fog up.
LHA5475
HEATER AND AIR CONDITIONER
(automatic)
Monitor, climate, audio, phone and voice recognition systems4-35

Start the engine and operate the controls to
activate the air conditioner.
NOTE:
• Odors from inside and outside the vehiclecan build up in the air conditioner unit.
Odor can enter the passenger compart-
ment through the vents.
• When parking, set the heater and air con- ditioner controls to turn off air recircula-
tion to allow fresh air into the passenger
compartment. This should help reduce
odors inside the vehicle
AUTOMATIC OPERATION
Press the AUTO button to set the automatic
control mode that keeps the air distribution,
temperature and the fan speed auto-
matically.
Cooling and/or dehumidified
heating (AUTO)
This mode may be used all year round as the
system automatically works to keep a con-
stant temperature. Air flow distribution, air
intake control, and fan speed are also con-
trolled automatically.
1. Press the
CLIMATE button on the
lower display menu. The CLIMATE screen
will display on the lower display. 2. Press the AUTO button on. (The indicator
on the button will illuminate and AUTO
will be displayed on the CLIMATE screen.)
3. Press the
temperature control
buttons on the driver’s side to set the de-
sired temperature.
• The temperature of the passenger com- partment will be maintained automatically.
Air flow distribution, air intake control and
fan speed are also controlled automatically.
• A visible mist may be seen coming from the vents in hot, humid conditions as the air is
cooled rapidly. This does not indicate a
malfunction.
Dehumidified defrosting or
defogging
1. Press thefront defroster button on.
(The indicator light on the button will
come on.)
2. Operate the
temperature con-
trol buttons to set the desired
temperature.
• To quickly remove ice from the outside of the windows, use the
fan speed con-
trol button or the “” key to set the fan
speed to maximum. • As soon as possible after the windshield is
clean, press the AUTO button to return to
the automatic mode.
•
When thefront defroster button is
pressed, the air conditioner will automatically
be turned on at outside temperatures ap-
proximately 32°F (0°C) to defog the wind-
shield. The air recirculate mode automatically
turns off, allowing outside air to be drawn
into the passenger compartment to further
improve the defogging performance.
Remote Engine Start with
Intelligent Climate Control (if so
equipped)
Vehicles equipped with automatic climate con-
trols and Remote Engine Start function may go
into automatic heating or cooling mode when
Remote Engine Start is activated depending on
outside and cabin temperatures. During this
period, the climate control display and buttons
will be inoperable until the ignition switch is
placed in the ON position. In Remote Engine
Start defrosting mode, the rear window de-
froster, heated seat (if so equipped) and heated
steering wheel (if so equipped) may be acti-
vated automatically. In Remote Engine Start
cooling mode, the climate controlled seat (if so
equipped) may be activated automatically.
4-36Monitor, climate, audio, phone and voice recognition systems

CLIMATE SETTING SCREEN
Climate control settings can be changed on
the screen.
Available setting items may vary depending
on models and specifications.
Press the
CLIMATE button on the
lower display menu. The CLIMATE screen
will display on the lower display.
Heating (A/C off)
The air conditioner does not activate in this
mode. When you need to heat only, use this
mode.
1. Press the
CLIMATE button.
2. If the Climate system is off, press the ON-OFF button to turn the system on.
3. If the
A/C indicator is on, touch the
“A/C” key to turn the A/C off. 4. Press the
temperature control
buttons on the driver’s side to set the
desired temperature.
• When in AUTO mode, the temperature of the passenger compartment will be main-
tained automatically. Air flow distribution
and fan speed are also controlled
automatically.
• Do not set the temperature lower than the outside air temperature or the system may
not work properly.
• This procedure is not recommended if win- dows fog up.
When the outside temperature decreases to
approximately 32°F (0°C), the A/C function
does not activate even if the
A/C indi-
cator light illuminates.
Air conditioning (A/C)
Touch the “A/C” key to turn the A/C
mode on or off. Turn on the A/C mode for
effective cooling and dehumidifying. When
the A/C indicator light is on, the A/C mode
is on.
LHA5299
Type A (if so equipped)
LHA5457
Type B (if so equipped)
Monitor, climate, audio, phone and voice recognition systems4-39

CAUTION
During the first 1,200 miles (2,000 km),
follow these recommendations to obtain
maximum engine performance and ensure
the future reliability and economy of your
new vehicle. Failure to follow these recom-
mendations may result in shortened engine
life and reduced engine performance.
• Avoid driving for long periods at constant speed, either fast or slow, and do not run
the engine over 4,000 rpm.
• Do not accelerate at full throttle in any gear.
• Avoid quick starts.
• Avoid hard braking as much as possible.
• Do not tow a trailer for the first 500 miles (805 kilometers). Your engine, axle or other
parts could be damaged. Follow these easy-to-use Fuel Efficient Driv-
ing Tips to help you achieve the most fuel
economy from your vehicle.
1.
Use Smooth Accelerator and Brake Pedal
Application
• Avoid rapid starts and stops.
• Use smooth, gentle accelerator and brake application whenever possible.
• Maintain constant speed while com- muting and coast whenever possible.
2. Maintain Constant Speed
• Look ahead to try and anticipate and minimize stops.
• Synchronizing your speed with traffic lights allows you to reduce your number
of stops.
• Maintaining a steady speed can mini- mize red light stops and improve fuel
efficiency.
3. Use Air Conditioning (A/C) at Higher Ve-
hicle Speeds
• Below 40 mph (64 km/h), it is more efficient to open windows to cool the
vehicle due to reduced engine load.
• Above 40 mph (64 km/h), it is more efficient to use A/C to cool the vehicle
due to increased aerodynamic drag. • Recirculating the cool air in the cabin
when the A/C is on reduces cooling
load.
4.
Drive at Economical Speeds and Distances
•Observing the speed limit and not ex-
ceeding 60 mph (97 km/h) (where legally
allowed) can improve fuel efficiency due
to reduced aerodynamic drag.
• Maintaining a safe following distance behind other vehicles reduces unneces-
sary braking.
• Safely monitoring traffic to anticipate changes in speed permits reduced brak-
ing and smooth acceleration changes.
• Select a gear range suitable to road conditions.
5. Use Cruise Control
• Using cruise control during highway driving helps maintain a steady speed.
• Cruise control is particularly effective in providing fuel savings when driving on
flat terrains.
6. Plan for the Shortest Route
• Utilize a map or navigation system to determine the best route to save time.
BREAK-IN SCHEDULE FUEL EFFICIENT DRIVING TIPS
5-132Starting and driving

Check for and remove objects obstructing
the area around the sonar sensors.
Do not attach stickers (including transparent
material), install accessories or apply addi-
tional paint near the sonar sensors.
Do not strike or damage the area around the
sonar sensors. It is recommended that you
visit an INFINITI retailer if the area around
the sonar sensors is damaged due to a
collision.FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply
de-icer through the key hole. If the lock be-
comes frozen, heat the key before inserting it
into the key hole, or use the INFINITI Intelli-
gent Key.
ANTIFREEZE
In the winter when it is anticipated that the
temperature will drop below 32°F (0°C),
check the antifreeze to assure proper winter
protection. For additional information, see
“Engine cooling system” (P. 8-4).
BATTERY
If the battery is not fully charged during ex-
tremely cold weather conditions, the battery
fluid may freeze and damage the battery. To
maintain maximum efficiency, the battery
should be checked regularly. For additional
information, see “Battery” (P. 8-12).
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without
antifreeze, drain the cooling system, including
the engine block. Refill before operating the
vehicle. For additional information, see
“Changing engine coolant” (P. 8-5).
TIRE EQUIPMENT
1. SUMMER tires have a tread designed toprovide superior performance on dry
pavement. However, the performance of
these tires will be substantially reduced in
snowy and icy conditions. If you operate
your vehicle on snowy or icy roads,
INFINITI recommends the use of MUD &
SNOW or ALL SEASON TIRES on all four
wheels. It is recommended that you visit
an INFINITI retailer for the tire type, size,
speed rating and availability information.
2. For additional traction on icy roads, stud- ded tires may be used. However, some
U.S. states and Canadian provinces pro-
hibit their use. Check local, state and pro-
vincial laws before installing studded tires.
Skid and traction capabilities of studded
snow tires on wet or dry surfaces may be
poorer than that of non-studded snow tires.
3. Tire chains may be used. For additional information, see “Tire chains”(P. 8-38).
COLD WEATHER DRIVING
Starting and driving5-153

To start your engine with a booster battery,
the instructions and precautions below must
be followed.
WARNING
• If done incorrectly, jump starting can
lead to a battery explosion, resulting in
severe injury or death. It could also dam-
age your vehicle.
• Explosive hydrogen gas is always pres-
ent in the vicinity of the battery. Keep all
sparks and flames away from the
battery.
• Do not allow battery fluid to come into
contact with eyes, skin, clothing or
painted surfaces. Battery fluid is a corro-
sive sulfuric acid solution which can
cause severe burns. If the fluid should
come into contact with anything, imme-
diately flush the contacted area with
water.
• Keep battery out of the reach of children.
• The booster battery must be rated at 12
volts. Use of an improperly rated battery
can damage your vehicle. •
Whenever working on or near a battery,
always wear suitable eye protectors (for
example, goggles or industrial safety
spectacles) and remove rings, metal
bands, or any other jewelry. Do not lean
over the battery when jump starting.
• Do not attempt to jump start a frozen
battery. It could explode and cause seri-
ous injury.
• Your vehicle has an automatic engine
cooling fan. It could come on at any time.
Keep hands and other objects away from
it.
JUMP STARTING
In case of emergency6-5

CAUTION
• Continuously Variable Transmission
(CVT) models cannot be push-started or
tow-started. Attempting to do so may
cause transmission damage.
• Do not push start this vehicle. The three-
way catalyst may be damaged.WARNING
• Do not continue to drive if your vehicle
overheats. Doing so could cause engine
damage or a vehicle fire.
• To avoid the danger of being scalded,
never remove the coolant reservoir cap
while the engine is still hot. When the
coolant reservoir cap is removed, pres-
surized hot water will spurt out, possibly
causing serious injury.
• Do not open the hood if steam is coming
out.
If your vehicle is overheating (indicated by an
extremely high temperature gauge reading),
or if you feel a lack of engine power, detect
abnormal noise, etc. take the following steps.
1. Move the vehicle safely off the road, apply the parking brake.
2. Push the park button to shift to the P (Park) position.
Do not stop the engine.
3. Turn off the air conditioner. Open all the windows, move the heater or air condi-
tioner temperature control to maximum
hot and fan control to high speed. 4. Get out of the vehicle. Look and listen for
steam or coolant escaping from the radia-
tor before opening the hood. (If steam or
coolant is escaping, turn off the engine.)
Do not open the hood further until no
steam or coolant can be seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the en-
gine, stand clear to prevent getting
burned.
6. Visually check drive belts for damage or looseness. Also check if the cooling fan is
running. The radiator hoses and radiator
should not leak water. If coolant is leaking,
the water pump belt is missing or loose, or
the cooling fan does not run, stop the
engine.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or the
engine cooling fan. The engine cooling fan
can start at any time.
PUSH STARTING IF YOUR VEHICLE OVERHEATS
In case of emergency6-7

8 Do-it-yourself
Maintenance precautions........................8-2
Engine compartment check locations .............8-3
Engine cooling system .......................... 8-4
Checking engine coolant level .................8-5
Changing engine coolant ......................8-5
Engine oil ........................................8-6
Checking engine oil level .......................8-6
Changing engine oil and oil filter ...............8-7
Continuously Variable Transmission (CVT) fluid . . . 8-10
Brake fluid..................................... 8-10
Windshield-washer fluid ......................... 8-11
Windshield-washer fluid reservoir .............8-11
Battery ........................................ 8-12
Jump starting ............................... 8-14
Variable voltage control system ................8-14
Drive belt ...................................... 8-15
Spark plugs .................................... 8-15
Replacing spark plugs ....................... 8-15
Air cleaner ..................................... 8-16
In-cabin microfilter .......................... 8-17Windshield wiper blades
........................ 8-17
Cleaning .................................... 8-17
Replacing ................................... 8-17
Brakes ......................................... 8-19
Fuses .......................................... 8-20
Engine compartment ........................ 8-20
Passenger compartment ....................8-21
Battery replacement ........................... 8-22
INFINITI Intelligent Key .....................8-22
Lights ......................................... 8-24
Headlights .................................. 8-24
Fog lights (if so equipped) ...................8-24
Exterior and interior lights ...................8-25
Replacement procedures ....................8-26
Wheels and tires ............................... 8-27
Tire pressure ................................ 8-27
Tire labeling ................................ 8-32
Types of tires ............................... 8-35
Tire chains .................................. 8-38
Changing wheels and tires ...................8-38

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 flu-
ids can damage the environment. Always
conform 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.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself