2021 INFINITI QX50 battery

67,500 miles/(108,000 km)/
108 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines & cables
• Brake pads & rotors
• CVT transmission fluid
• Engine drive belts*
• Propeller shaft (AWD models)
• Differential gear oil (AWD models) (1)
• Transfer case oil (AWD models) (1)
• Drive shaft boots
• Horn, lights, signals, wipers, rear hatch/hood lift supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Engine drive belt and hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth Essentials:
• Replace engine oil & filter (2)
• Tire rotation
• Replace in-cabin microfilter
• Replace intelligent key battery
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaft (AWD models)
• Drive shaft boots
• Steering gear & linkage
• Axle & suspension parts
Essentials:
• Replace brake fluid
(1) If towing a trailer, using a camper or a
car-top carrier, or driving on rough or muddy
roads, change (not just inspect) oil every
20,000 miles (32,000 km) or 24 months.
(2) If the oil replacement indicator is dis-
played, change the engine oil and filter within
two weeks or less than 500 miles (800 km).
* Maintenance items and intervals with“*”
are recommended by NISSAN for reliable ve-
hicle operation. The owner need not perform
such maintenance in order to maintain the
emission warranty or manufacturer recall li-
ability. Other maintenance items and inter-
vals are required.
9-20Maintenance and schedules

71,250 miles/(114,000 km)/
114 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
• Not applicable. Proceed to the nextinterval.
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaft (AWD models)
• Drive shaft boots
• Steering gear and linkage
• Axle & suspension parts
• Horn, lights, signals, wipers, rear hatch/ hood lift supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Engine drive belt and hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
75,000 miles/(120,000 km)/
120 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines & cables
• Brake pads & rotors
• CVT transmission fluid
• Engine drive belts*
• Fuel tank vapor vent system*
• Fuel lines/connections*
• Exhaust system
• Propeller shaft (AWD models)
• Steering gear and linkage
• Axle & suspension parts
• Differential gear oil (AWD models) (1)
• Transfer case oil (AWD models) (1)
• Drive shaft boots
• Horn, lights, signals, wipers, rear hatch/ hood lift supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Engine drive belt and hose inspections
• Engine air filter • Suspension components (shocks, sub-
frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essentials:
• Replace engine oil & filter (2)
• Tire rotation
• Replace brake fluid
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaft (AWD models)
• Drive shaft boots
• Steering gear & linkage
• Axle & suspension parts
Essentials:
• Replace brake fluid
(1) If towing a trailer, using a camper or a
car-top carrier, or driving on rough or muddy
roads, change (not just inspect) oil every
20,000 miles (32,000 km) or 24 months.
(2) If the oil replacement indicator is dis-
played, change the engine oil and filter within
two weeks or less than 500 miles (800 km).
Maintenance and schedules9-21

* Maintenance items and intervals with“*”
are recommended by NISSAN for reliable ve-
hicle operation. The owner need not perform
such maintenance in order to maintain the
emission warranty or manufacturer recall li-
ability. Other maintenance items and inter-
vals are required.78,750 miles/(126,000 km)/
126 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Horn, lights, signals, wipers, rear hatch/hood lift supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Engine drive belts and hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essentials:
• Replace in-cabin microfilter
• Replace intelligent key battery Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaft (AWD models)
• Drive shaft boots
• Steering gear & linkage
• Axle & suspension parts
9-22Maintenance and schedules

82,500 miles/(132,000 km)/
132 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines & cables
• Brake pads & rotors
• CVT transmission fluid
• Engine drive belts*
• Propeller shaft (AWD models)
• Differential gear oil (AWD models) (1)
• Transfer case oil (AWD models) (1)
• Drive shaft boots
• Horn, lights, signals, wipers, rear hatch/hood lift supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Engine drive belt and hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth Essentials:
• Replace engine oil & filter (2)
• Tire rotation
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaft (AWD models)
• Drive shaft boots
• Steering gear & linkage
• Axle & suspension parts
Essentials:
• Replace brake fluid
(1) If towing a trailer, using a camper or a
car-top carrier, or driving on rough or muddy
roads, change (not just inspect) oil every
20,000 miles (32,000 km) or 24 months.
(2) If the oil replacement indicator is dis-
played, change the engine oil and filter within
two weeks or less than 500 miles (800 km).
* Maintenance items and intervals with“*”
are recommended by NISSAN for reliable ve-
hicle operation. The owner need not perform
such maintenance in order to maintain the
emission warranty or manufacturer recall li-
ability. Other maintenance items and inter-
vals are required.
86,250 miles/(138,000 km)/
138 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Not applicable. Proceed to next interval.
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaft (AWD models)
• Drive shaft boots
• Steering gear & linkage
• Axle & suspension parts
• Horn, lights, signals, wipers, rear hatch/
hood lift supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Engine drive belt and hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Maintenance and schedules9-23

90,000 miles/(144,000 km)/
144 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines & cables
• Brake pads & rotors
• CVT transmission fluid
• Engine drive belts*
• Fuel tank vapor vent system*
• Fuel lines/connections*
• Exhaust system
• Propeller shaft (AWD models)
• Steering gear and linkage
• Axle & suspension parts
• Differential gear oil (AWD models) (1)
• Transfer case oil (AWD models) (1)
• Drive shaft boots
• Horn, lights, signals, wipers, rear hatch/hood lift supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Engine drive belt and hose inspections
• Engine air filter • Suspension components (shocks, sub-
frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essentials:
• Replace engine oil & filter (2)
• Replace engine air filter (3)
• Replace brake fluid
• Replace in-cabin microfilter
• Replace intelligent key battery
• Tire rotation
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaft (AWD models)
• Drive shaft boots
• Steering gear & linkage
• Axle & suspension parts Essentials:
• Replace brake fluid
(1) If towing a trailer, using a camper or a
car-top carrier, or driving on rough or muddy
roads, change (not just inspect) oil every
20,000 miles (32,000 km) or 24 months.
(2) If the oil replacement indicator is dis-
played, change the engine oil and filter within
two weeks or less than 500 miles (800 km).
(3) If operating mainly in dusty conditions,
more frequent maintenance may be required.
* Maintenance items and intervals with“*”
are recommended by NISSAN for reliable ve-
hicle operation. The owner need not perform
such maintenance in order to maintain the
emission warranty or manufacturer recall li-
ability. Other maintenance items and inter-
vals are required.
9-24Maintenance and schedules

The safety chains can be attached to the
bumper if the hitch ball is mounted to the
bumper. Be sure to leave enough slack in the
chains to permit turning corners.
Trailer lights
CAUTION
When splicing into the vehicle electrical
system, a commercially available power-
type module/converter must be used to
provide power for all trailer lighting. This
unit uses the vehicle battery as a direct
power source for all trailer lights while us-
ing the vehicle tail light, stop light and turn
signal circuits as a signal source. The
module/converter must draw no more
than 15 milliamps from the stop and tail
lamp circuits. Using a module/converter
that exceeds these power requirements
may damage the vehicle's electrical sys-
tem. See a reputable trailer retailer to ob-
tain the proper equipment and to have it
installed.
Trailer lights should comply with federal
and/or local regulations. For assistance in
hooking up trailer lights, contact an INFINITI
retailer or reputable trailer retailer. Vehicles
equipped with the optional trailer tow pack-
age are equipped with a 7-pin trailer harness connector. If your trailer is equipped with a
flat 4-pin connector, an adapter will be
needed to connect the trailer lights to the
vehicle. Adapters are available at auto parts
stores and hitch retailers.Trailer brakes
Most states require a separate braking sys-
tem on trailers with a loaded weight above a
specific amount, make sure the trailer meets
the local regulations and the regulations
where you plan to tow.
Several types of braking systems are
available.
Surge Brakes -
The surge brake actuator is
mounted on the trailer tongue with a hydrau-
lic line running to each trailer wheel. Surge
brakes are activated by the trailer pushing
against the hitch ball when the tow vehicle is
braking. Hydraulic surge brakes are common
on rental trailers and some boat trailers. In
this type of system, there is no hydraulic or
electric connection for brake operation be-
tween the tow vehicle and the trailer.
Electric Trailer Brakes - Electric braking sys-
tems are activated by an electronic signal
sent from a trailer brake controller (special
brake-sensing module). Have a professional supplier of towing
equipment make sure the trailer brakes are
properly installed and demonstrate proper
brake function testing.
WARNING
Never connect a trailer brake system di-
rectly to the vehicle brake system.
Pre-towing tips
• Be certain your vehicle maintains a level position when a loaded and/or unloaded
trailer is hitched. Do not drive the vehicle if
it has an abnormal nose-up or nose-down
condition; check for improper tongue load,
overload, worn suspension or other pos-
sible causes of either condition.
• Always secure items in the trailer to prevent load shift while driving.
• Keep the cargo load as low as possible in the trailer to keep the trailer center of grav-
ity low.
• Load the trailer so approximately 60% of the trailer load is in the front half and 40%
is in the back half. Also make sure the load is
balanced side to side.
10-26Technical and consumer information

CAUTION
• Failure to follow these guidelines can re-
sult in severe transmission damage.
• Never flat tow your All-wheel drive
(AWD) vehicle.
• DO NOT tow your All-wheel drive
(AWD) vehicle with any wheels on the
ground. Doing so may cause serious and
expensive damage to the powertrain.
• For emergency towing procedures see
“Towing recommended by INFINITI”
(P. 6-8).
FLAT TOWING FOR FRONT
WHEEL DRIVE VEHICLE (if so
equipped)
Towing your vehicle with all four wheels on
the ground is sometimes called flat towing.
This method is sometimes used when towing
a vehicle behind a recreational vehicle, such
as a motor home.
CAUTION
• Failure to follow these guidelines can re-
sult in severe transmission damage.
• Whenever flat towing your vehicle, al-
ways tow forward, never backward. •
Never tow your front wheel drive vehicle
with the front tires on the ground. Doing
so may cause serious and expensive dam-
age to the powertrain.
• DO NOT tow your front wheel drive con-
tinuously variable transmission vehicle
with all four wheels on the ground (flat
towing). Doing so WILL DAMAGE inter-
nal transmission parts due to lack of
transmission lubrication.
• For emergency towing procedures see
“Towing recommended by INFINITI”
(P. 6-8).
Continuously Variable Transmission
To tow a vehicle equipped with a continu-
ously variable transmission, an appropriate
vehicle dolly MUSTbe placed under the
towed vehicle's drive wheels. Alwaysfollow
the dolly manufacturer's recommendations
when using their product.
NOTE:
It the battery is completely drained the
transmission will not manually shift to other
positions. 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.
UNIFORM TIRE QUALITY GRADING
Technical and consumer information10-29

WARNING
A vehicle equipped with All-Wheel Drive
(AWD) should never be tested using a two
wheel dynamometer (such as the dyna-
mometers used by some states for emis-
sions testing), or similar equipment. Make
sure you inform the test facility personnel
that your vehicle is equipped with AWD
before it is placed on a dynamometer. Us-
ing the wrong test equipment may result in
transmission damage or unexpected ve-
hicle movement which could result in seri-
ous vehicle damage or personal injury.
Due to legal requirements in some states and
Canadian Provinces, your vehicle may be re-
quired to be in what is called the “ready con-
dition” for an Inspection/Maintenance (I/M)
test of the emission control system.
The vehicle is set to the “ready condition”
when it is driven through certain driving pat-
terns. Usually, the ready condition can be
obtained by ordinary usage of the vehicle. If a powertrain system component is repaired
or the battery is disconnected, the vehicle
may be reset to a “not ready” condition. Be-
fore taking the I/M test, check the vehicle's
inspection/maintenance test readiness con-
dition. Place the ignition switch in the ON
position without starting the engine. If the
Malfunction Indicator Light (MIL) comes on
steady for 20 seconds and then blinks for 10
seconds , the I/M test condition is “not
ready”. If the MIL does not blink after 20
seconds, the I/M test condition is “ready”. It is
recommended that you visit an INFINITI re-
tailer to set the “ready condition” or to pre-
pare the vehicle for testing.
The ProPILOT Assist is equipped with an
Event Data Recording function.
The main purpose is to record, in certain crash
or near crash-like situations, such as an air
bag deployment or hitting a road obstacle,
data that will assist in understanding how a
vehicle’s systems performed. The Data re-
cording function is designed to record data
related to driver operation, vehicle dynamics
and system status for a short period of time.
The Data recording function in this vehicle is
designed to record such data as:
• Driver operational status of accelerator,
brake, handle etc.
• Detection status of a vehicle ahead and lane markers
• Vehicle information such as vehicle speed
• Information on the operation of the ProPI- LOT Assist
• ProPILOT Assist malfunction diagnosis information
• Images from multi-sensing front camera (Available only when SRS air bag or FEB
with Pedestrian Detection system is
activated)
The ProPILOT Assist does not record con-
versations, sounds or images of the inside of
the vehicle.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST EVENT DATA RECORDERS (EDR)
10-32Technical and consumer information