key INFINITI QX50 2023 Repair Manual

Press theto decrease the rear
temperature.
If front passengers touch the “
SYNC”
key on the Climate screen, the rear tempera-
ture settings will synchronize with the driver’s
and passenger’s side settings.
Heated 2nd row seat switches
(if so equipped)
For additional information, see “Heated 2nd
row seat switches” (P. 2-50).
Heater and air conditioner settings can be
changed on the screen.
1. Press the
MENU button on the
lower display menu.
2. Using the arrow, tab over to the next screen and touch the “Settings” key.
Touch the arrow again to get to the next
screen and touch “Others”.
3. Touch the “CLIMATE” key.
Available setting items may vary depending
on models and specifications. Available settings
•
Use A/C While Idle (if so equipped)
Touch to turn on/off the Idling Stop Prior-
ity mode. While this item is turned on and
the engine is on, the Climate Control will
not be affected by the Idling Stop activa-
tion. Otherwise, when the engine is off by
the Idle Stop function, the Climate Control
System will be able to heat and cool the
cabin.
• Steering Wheel Heater
Touch to turn the steering wheel heater on
and off.
• Auto Steering Wheel Heater
The automatic control mode for the
steering-wheel heating can be turned on
and off. When the item is turned on, the
steering-wheel heating will turn on auto-
matically if the temperature inside the ve-
hicle compartment is low at the time when
the ignition switch is placed in the ON
position. Regardless of the temperature,
the steering-wheel heating will turn off
after 30 minutes. If the steering-wheel
heater is turned on or off manually by
touching
on the CLIMATE screen,
the automatic steering-wheel heating
control mode will be canceled and will re-
turn to the manual mode.
LHA5459
HEATER AND AIR CONDITIONER
SETTINGS (if so equipped)
4-42Monitor, climate, audio, phone and voice recognition systems

5 Starting and driving
Precautions when starting and driving............5-4
Exhaust gas (carbon monoxide) ................5-4
Three-way catalyst ...........................5-4
Tire Pressure Monitoring System (TPMS) ......5-5
On-pavement and off-road driving
precautions ...................................5-8
Avoiding collision and rollover .................5-8
Off-road recovery ............................5-9
Rapid air pressure loss ........................5-9
Drinking alcohol/drugs and driving ...........5-10
Driving safety precautions ...................5-10
Intelligent All-Wheel Drive (AWD) driving
safety precautions (if so equipped) ............5-12
Push-button ignition switch ....................5-13
Operating range ............................ 5-14
Push-button ignition switch positions ........5-14
Emergency engine shut off ...................5-15
INFINITI Intelligent Key battery
discharge .................................... 5-15
INFINITI Vehicle Immobilizer System .........5-16
Before starting the engine ......................5-16
Starting the engine ............................. 5-16
Remote Engine Start ......................... 5-17
Driving the vehicle ............................. 5-18
Continuously Variable Transmission
(CVT) ....................................... 5-18Electronic parking brake
........................ 5-24
Automatic operation ........................ 5-24
Manual operation ........................... 5-25
When towing a trailer ....................... 5-26
Automatic brake hold .......................... 5-26
How to activate/deactivate the
automatic brake hold function ...............5-27
How to use the automatic brake hold
function .................................... 5-28
INFINITI Drive Mode Selector ..................5-29
Standard mode ............................. 5-29
Sport mode ................................. 5-29
Personal mode .............................. 5-30
ECO mode ................................. 5-31
Traffic Sign Recognition (TSR) (if so equipped) .....5-32System operation ........................... 5-33
Turning the Traffic Sign Recognition
(TSR) system on and off .....................5-34
System temporarily unavailable ..............5-34
System malfunction ......................... 5-34
System maintenance ........................ 5-34
Lane Departure Warning (LDW) ................5-35
LDW system operation ......................5-36
How to enable/disable the LDW system .....5-37
LDW system limitations .....................5-38
System temporarily unavailable ..............5-39

OPERATING RANGE
The Intelligent Key functions can only be used
when the Intelligent Key is within the speci-
fied operating range.
When the Intelligent Key battery is almost
discharged or strong radio waves are present
near the operating location, the Intelligent
Key system’s operating range becomes nar-
rower and may not function properly.
If the Intelligent Key is within the operating
range, it is possible for anyone, even some-
one who does not carry the Intelligent Key, to
push the ignition switch to start the engine.The operating range of the engine start func-
tion is inside of the vehicle
O1.
• The luggage area is not included in the operating range, but the Intelligent Key
may function.
• If the Intelligent Key is placed on the instru- ment panel or inside the glove box, storage
bin or door pocket, the Intelligent Key may
not function.
• If the Intelligent Key is placed near the door or window outside the vehicle, the Intelli-
gent Key may function.
PUSH-BUTTON IGNITION
SWITCH POSITIONS
LOCK (Normal parking position)
The ignition switch can only be locked in this
position.
The ignition switch will be unlocked when it is
placed in the ON position while carrying the
Intelligent Key.
The ignition switch will lock when any door is
opened or closed with the ignition switched
off.
ON (Normal operating position)
This position turns on the ignition system and
electrical accessories. ON has a battery saver feature that will place
the ignition switch in the OFF position, if the
vehicle is not running, after some time under
the following conditions:
• All doors are closed.
• The vehicle is in P (Park) position.
The battery saver feature will be canceled if
any of the following occur:
• Any door is opened.
• The shift position is shifted out of the P
(Park) position.
• The ignition switch changes position.
CAUTION
Do not leave the vehicle with the ignition
switch in the ON position when the engine
is not running for an extended period. This
can discharge the battery.
OFF
The ignition switch is in the OFF position
when the engine is turned off using the igni-
tion switch. No lights will illuminate on the
ignition switch.LSD2020
5-14Starting and driving

AUTO ACC
With the vehicle in the P (Park) position, the
Intelligent Key with you and the ignition
switch placed from the ON position to the
OFF position, the radio can still be used for a
period of time, or until the driver’s door is
opened.
After a period of time, functions such as ra-
dio, navigation, and Bluetooth® Hands-Free
Phone System may be restarted by pressing
the POWER button/VOLUME control knob
or the key fob unlock button. For additional
information, see the “Monitor, climate, audio,
phone and voice recognition systems”
(P. 4-2).
EMERGENCY ENGINE SHUT OFF
To shut off the engine in an emergency situ-
ation while driving, perform the following
procedure:
• Rapidly push the ignition switch three con-secutive times in less than 1.5 seconds, or
• Push and hold the ignition switch for more than 2 seconds.
INFINITI INTELLIGENT KEY
BATTERY DISCHARGE
If the battery of the Intelligent Key is dis-
charged or environmental conditions inter-
fere with the Intelligent Key operation, start
the engine according to the following proce-
dure:
1. Press the Park button to place the vehicle in the P (Park) position.
2. Firmly apply the foot brake. 3.
Touch the ignition switch with the Intelli-
gent Key as illustrated. (A chime will sound.)
4. Push the ignition switch while depressing
the brake pedal within 10 seconds after
the chime sounds. The engine will start.
After step 3 is performed, when the ignition
switch is pushed without depressing the
brake pedal, the ignition switch position will
change to ON.
NOTE:
• When the ignition switch is placed in the ON position or the engine is started by the
above procedure, the Intelligent Key bat-
tery discharge indicator may appear in the
vehicle information display even when the
Intelligent Key is inside the vehicle. This is
not a malfunction. To turn off the Intelli-
gent Key battery discharge indicator,
touch the ignition switch with the Intelli-
gent Key again.
• If the Intelligent Key battery discharge in- dicator appears, replace the battery as
soon as possible. For additional informa-
tion, see “Battery replacement” (P. 8-22).
LSD3572
Starting and driving5-15

INFINITI VEHICLE IMMOBILIZER
SYSTEM
The INFINITI Vehicle Immobilizer System will
not allow the engine to start without the use
of the registered key.
If the engine fails to start using the registered
key, it may be due to interference caused by
another registered key, an automated toll
road device or automated payment device on
the key ring. Restart the engine using the
following procedures:
1. Leave the ignition switch in the ON posi-tion for approximately 5 seconds.
2. Place the ignition switch in the OFF or LOCK position and wait approximately
5 seconds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the de- vice (which may have caused the interfer-
ence) separate from the registered key.
If the no start condition re-occurs, INFINITI
recommends placing the registered key on a
separate key ring to avoid interference from
other devices. • Make sure the area around the vehicle is
clear.
• Check fluid levels such as engine oil, cool- ant, brake fluid, and windshield-washer
fluid as frequently as possible, or at least
whenever you refuel.
• Check that all windows and lights are clean.
• Visually inspect tires for their appearance and condition. Also check tires for proper
inflation.
• Check that all doors are closed.
• Position seat and adjust head restraints/ headrests.
• Adjust inside and outside mirrors.
• Fasten seat belts and ask all passengers to do likewise.
• Check the operation of warning lights when the ignition switch is placed in the ON
position. For additional information, see
“Warning lights, indicator lights and audible
reminders” (P. 2-9) 1. Apply the parking brake.
2. Press the Park button to place the vehicle
in P (Park) or move the shift lever to N
(Neutral). P (Park) is recommended.
The starter is designed not to operate if
the shift lever is in any of the driving
positions.
3. Push the ignition switch to the ON posi- tion. Depress the brake pedal and push
the ignition switch to start the engine.
To start the engine immediately, push and
release the ignition switch while depress-
ing the brake pedal with the ignition
switch in any position.
• If the engine is very hard to start in extremely cold weather or when re-
starting, depress the accelerator pedal a
little (approximately 1/3 to the floor)
and while holding, crank the engine. Re-
lease the accelerator pedal when the
engine starts.
• If the engine is very hard to start be- cause it is flooded, depress the accel-
erator pedal all the way to the floor and
hold it. Push the ignition switch to the
ON position to start cranking the en-
gine. After 5 or 6 seconds, stop cranking
by pushing the ignition switch to the
BEFORE STARTING THE ENGINE STARTING THE ENGINE
5-16Starting and driving

LOCK position. After cranking the en-
gine, release the accelerator pedal.
Crank the engine with your foot off the
accelerator pedal by depressing the
brake pedal and pushing the ignition
switch to start the engine. If the engine
starts, but fails to run, repeat the above
procedure.
CAUTION
Do not operate the starter for more than
15 seconds at a time. If the engine does not
start, push the ignition switch to the OFF
position and wait 10 seconds before crank-
ing again, otherwise the starter could be
damaged.
4. Warm-up:
Allow the engine to idle for at least 30
seconds after starting. Do not race the
engine while warming it up. Drive at a
moderate speed for a short distance first,
especially in cold weather. In cold
weather, keep the engine running for a
minimum of2-3minutes before shutting
it off. Starting and stopping the engine
over a short period of time may make the
vehicle more difficult to start. 5. To stop the engine, place the shift position
in the P (Park) position and push the igni-
tion switch to the OFF position.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of electronic accessories that consume battery power
when the engine is not running (phone
chargers, GPS, DVD players, etc.).
2. The vehicle is not driven regularly and/or only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
REMOTE ENGINE START
Vehicles started with the Remote Engine
Start require the ignition switch to be placed
in the ON position before the shift position
can be shifted from the P (Park) position. To
place the ignition switch in the ON position,
follow these steps:
1. Make sure that the Intelligent Key is on you.
2. Apply the brake.
3. Push the ignition switch once to the ON position.
For additional information, see “INFINITI In-
telligent Key” (P. 3-6).
Starting and driving5-17

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

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

5. If the fuse is openOC, replace it with an
equivalent good fuse
OD.
6. Push the fuse box cover to install.
If a new fuse also opens, have the electrical
system checked and repaired. It is recom-
mended that you visit an INFINITI retailer for
this service.
NOTE:
Your vehicle may not be equipped with all
fuses listed on the fuse label.
CAUTION
Be careful not to allow children to swallow
the battery or removed parts.
INFINITI INTELLIGENT KEY
LDI3203
LDI3308
BATTERY REPLACEMENT
8-22Do-it-yourself

Replace the battery in the Intelligent Key as
follows:
1. Remove the mechanical key from the In-telligent Key.
2. Insert a small flathead screwdriver
OAinto
the slit
OBof the corner and twist it to
separate the upper part from the lower
part. Place a cloth over the screwdriver to
protect the casing. 3. Replace the battery with a new one.
Recommended battery: CR2032 or
equivalent.
• Do not touch the internal circuit and electric terminals as doing so could cause a
malfunction.
• Hold the battery by the edges. Holding the battery across the contact points will seri-
ously deplete the storage capacity.
• Make sure that the + side faces the bottom of the lower part.
4. Close the lid securely as illustrated with
OCandOD.
5. Operate the buttons to check the operation.
If you need assistance with replacement, it is
recommended that you visit an INFINITI re-
tailer for this service.
LDI3309
Do-it-yourself8-23