2023 INFINITI QX50 maintenance schedule

This manual was prepared to help you under-
stand the operation and maintenance of your
vehicle so that you may enjoy many miles
(kilometers) of driving pleasure. Please read
through this manual before operating your
vehicle.
A separate Warranty Information Booklet is
included in your Owner’s literature portfolio.
The “Maintenance and schedules” section of
this manual explains details about maintain-
ing and servicing your vehicle. Always carry it
with you when you take your vehicle to an
INFINITI retailer. The Warranty Information
Booklet contents provide complete informa-
tion about all warranties covering this vehicle,
the requirements to keep the warranties in
effect as well as the INFINITI Roadside Assis-
tance program.
Additionally, a separate Customer Care and
Lemon Law Information Booklet will explain
how to resolve any concerns you may have
with your vehicle, as well as clarify your
rights under your state’s lemon law.
In addition to factory-installed options, your
vehicle may also be equipped with additional
accessories installed prior to delivery. It is
recommended that you visit an INFINITI re-
tailer for details concerning the particular ac-
cessories with which your vehicle is equipped.It is important that you familiarize yourself
with all disclosures, warnings, cautions and
instructions concerning proper use of such
accessories prior to operating the vehicle
and/or accessory. It is recommended that
you visit an INFINITI retailer for details con-
cerning the particular accessories with which
your vehicle is equipped.
Before driving your vehicle, please read this
Owner's Manual carefully. This will ensure
familiarity with controls and maintenance
requirements, assisting you in the safe opera-
tion of your vehicle.
WARNING
IMPORTANT SAFETY INFORMATION
REMINDERS!
Follow these important driving rules to
help ensure a safe and comfortable trip for
you and your passengers!
• NEVER drive under the influence of alco-
hol or drugs.
• ALWAYS observe posted speed limits
and never drive too fast for conditions.
• ALWAYS give your full attention to
driving and avoid using vehicle features
or taking other actions that could dis-
tract you.
• ALWAYS use your seat belts and appro-
priate child restraint systems. Pre-teen
children should be seated in the rear seat.
• ALWAYS provide information about the
proper use of vehicle safety features to
all occupants of the vehicle.
• ALWAYS review this Owner’s Manual
for important safety information.
FOREWORD READ FIRST—THEN DRIVE SAFELY

Table of
contentsIllustrated table of contents
Safety-Seats, seat belts and supplemental restraint system
Instruments and controls
Pre-driving checks and adjustments
Monitor, climate, audio, phone and voice recognition systems
Starting and driving
In case of emergency
Appearance and care
Do-it-yourself
Maintenance and schedules
Technical and consumer information
Index
0
1
2
3
4
5
6
7
8
9
10
11

Forward Emergency Braking (FEB) with
Pedestrian Detection system..................5-109
System operation .......................... 5-110
Turning the FEB with Pedestrian
Detection system on/off ...................5-112
FEB with Pedestrian Detection system
limitations ................................. 5-113
System temporarily unavailable .............5-117
System malfunction ........................ 5-118
System maintenance ....................... 5-118
Predictive Forward Collision Warning (PFCW) . . . 5-120PFCW system operation ...................5-122
Turning the PFCW system on/off ..........5-123
PFCW system limitations ...................5-124
System temporarily unavailable .............5-129
System malfunction ........................ 5-130
System maintenance ....................... 5-130
Break-in schedule ............................. 5-132
Fuel efficient driving tips ......................5-132
Increasing fuel economy .......................5-133
Intelligent All-Wheel Drive (AWD) (if so
equipped) ..................................... 5-133
Parking/parking on hills .......................5-136Power steering
............................... 5-137
Electric power steering type ................5-137
Direct Adaptive Steering® type .............5-138
Brake system ................................. 5-140
Brake precautions .......................... 5-140
Anti-lock Braking System (ABS) .............5-140
Brake Assist ............................... 5-141
Vehicle Dynamic Control (VDC) system ........5-142
Brake force distribution ....................5-143
Chassis Control ............................... 5-144
Active Trace Control ....................... 5-144
Active Engine Brake ........................ 5-145
Active Ride Control ........................ 5-146
Hill start assist system ........................ 5-146
Front and rear sonar system (if so equipped) . . . 5-147 System operation .......................... 5-148
How to enable/disable the sonar system ....5-150
Sonar limitations ........................... 5-152
System temporarily unavailable .............5-152
System maintenance ....................... 5-152
Cold weather driving .......................... 5-153
Freeing a frozen door lock ..................5-153
Antifreeze ................................. 5-153

7.Avoid Idling
• Shutting off your engine when safe for stops exceeding 30–60 seconds saves
fuel and reduces emissions.
8. Buy an Automated Pass for Toll Roads
• Automated passes permit drivers to use special lanes to maintain cruising speed
through the toll and avoid stopping and
starting.
9. Winter Warm Up
• Limit idling time to minimize impact to fuel economy.
• Vehicles typically need no more than 30 seconds of idling at start-up to ef-
fectively circulate the engine oil before
driving.
• Your vehicle will reach its ideal operat- ing temperature more quickly while driv-
ing versus idling.
10. Keeping your Vehicle Cool
• Park your vehicle in a covered parking area or in the shade whenever possible.
• When entering a hot vehicle, opening the windows will help to reduce the in-
side temperature faster, resulting in re-
duced demand on your A/C system. • Keep your engine tuned up.
• Follow the recommended scheduled
maintenance.
• 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 “Engine oil
and oil filter recommendations” (P. 10-6).
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.
LSD4617
INCREASING FUEL ECONOMY INTELLIGENT ALL-WHEEL DRIVE(AWD) (if so equipped)
Starting and driving5-133

•The life expectancy of the factory-fill
coolant is 105,000 miles (168,000 km)
or 7 years. Mixing any other type of cool-
ant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) (or
equivalent coolant), including Genuine
NISSAN Long Life Antifreeze/Coolant
(green), or the use of non-distilled water
may reduce the life expectancy of the
factory-fill coolant. For additional infor-
mation, see the “Maintenance and
schedules” section of this manual.
CHECKING ENGINE COOLANT
LEVEL
Check the coolant level in the reservoir when
the engine is cold. If the coolant level is below
the MIN level
OB, add coolant to the MAX
level
OA.
This vehicle contains Genuine NISSAN
Long Life Antifreeze/Coolant (blue). The life
expectancy of the factory-fill coolant is
105,000 miles (168,000 km) or 7 years.
Mixing any other type of coolant or the use of
non-distilled water will reduce the life expec- tancy of the factory-fill coolant. For addi-
tional information, see the “Maintenance and
schedules” section of this manual.
If the cooling system frequently requires
coolant, have it checked. It is recommended
that you visit an INFINITI retailer for this
service.
For additional information on the location of
the engine coolant reservoir, see “Engine
compartment check locations” (P. 8-3).
CHANGING ENGINE COOLANT
An INFINITI retailer can change the engine
coolant. The service procedure can be found
in the INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheating.
WARNING
• To avoid the danger of being scalded,
never change the coolant when the en-
gine is hot.
• Never remove the coolant reservoir cap
when the engine is hot. Serious burns
could be caused by high pressure fluid
escaping from the radiator.
LDI3157
Do-it-yourself8-5

1. Automatic tensioner pulley
2. Generator pulley
3. Water pump pulley
4. Air conditioner compressor pulley
5. Crankshaft pulley
WARNING
Be sure the ignition switch is in the OFF or
LOCK position before servicing drive belt.
The engine could rotate unexpectedly. 1. Visually inspect the belt for signs of un-
usual wear, cuts, or fraying. If the belt is
in poor condition, have it replaced. It is
recommended that you visit an INFINITI
retailer for this service.
2. Have the belt checked regularly for condition.
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-tipped
OAspark plugs as frequently as conventional
type spark plugs because they last much lon-
ger. Follow the maintenance log shown in the
"Maintenance and schedules" section of this
manual. Do not service iridium-tipped spark
plugs by cleaning or regapping.
• Always replace spark plugs with recom-
mended or equivalent ones.
WDI0638SDI1895
DRIVE BELT SPARK PLUGS
Do-it-yourself8-15

WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to remove
the spark plugs. An incorrect socket can
damage the spark plugs.
If replacement is required, it is recommended
that you visit an INFINITI retailer for this
service.
WARNING
• Operating the engine with the air cleaner
filter off can cause you or others to be
burned. The air cleaner filter not only
cleans the intake air, it also stops the
flame if the engine backfires. If the air
cleaner is not installed and the engine
backfires, you could be burned. Never
drive with the air cleaner filter off. Be
cautious working on the engine when the
air cleaner is off. •
Never pour fuel into the throttle body or
attempt to start the engine with the air
cleaner removed. Doing so could result in
serious injury.
To remove the filter from the air cleaner, push
the clips
OAand pull the cover upward.
The viscous paper type filter element should
not be cleaned and reused. Replace it accord-
ing to the maintenance log shown in the
“Maintenance and schedules” section of this
manual.
When replacing the air filter, wipe the inside
of the air cleaner housing and the cover with
a damp cloth.
NOTE:
After installing a new air cleaner filter,
make sure the air cleaner cover is seated in
the housing and latch the clips
OA.
LDI3165
AIR CLEANER
8-16Do-it-yourself

IN-CABIN MICROFILTER
The in-cabin microfilter restricts the entry of
airborne dust and pollen particles and re-
duces some objectionable outside odors. The
filter is located behind the glove box. For
additional information on change intervals,
see the "Maintenance and schedules" section
of this manual.
If replacement is required, it is recommended
that you visit an INFINITI retailer for this
service.
CLEANING
If your windshield is not clear after using the
windshield-washer or if a wiper blade chat-
ters when running, wax or other material may
be on the blade or windshield.
Clean the outside of the windshield with a
washer solution or a mild detergent. Your
windshield is clean if beads do not form when
rinsing with clear water.
Clean each blade by wiping it with a cloth
soaked in a washer solution or a mild deter-
gent. Then rinse the blades with clear water.
If your windshield is still not clear after clean-
ing the blades and using the wiper, replace
the blades.
CAUTION
Worn windshield wiper blades can damage
the windshield and impair driver vision.
REPLACING
Replace the wiper blades if they are worn.
To replace the windshield wiper blades, fol-
low the procedure below:
1. When the ignition switch is ON or within 60 seconds after placing the ignition
switch from the ON to OFF position,
place the windshield wiper and washer
lever into the OFF position.
2. Rapidly lift the windshield wiper and washer lever
OAupwards twice within 0.5
seconds. This action will cause the wipers
to automatically take the service position.
LDI3250
WINDSHIELD WIPER BLADES
Do-it-yourself8-17