maintenance INFINITI QX50 2020 Repair Manual

ENGINE OIL AND OIL FILTER
RECOMMENDATIONS
Selecting the correct oil
It is essential to choose the correct grade,
quality and viscosity engine oil to ensure sat-
isfactory engine life and performance. For
additional information, refer to "Recom-
mended fluids/lubricants and capacities" in
this section. INFINITI recommends the use of
an energy conserving oil in order to improve
fuel economy.
Select only engine oils that meet the Ameri-
can Petroleum Institute (API) certification orInternational Lubricant Standardization and
Approval Committee (ILSAC) certification
and SAE viscosity standard. These oils have
the API certification mark on the front of the
container. Oils which do not have the speci-
fied quality label should not be used as they
could cause engine damage.
Oil additives
INFINITI does not recommend the use of oil
additives. The use of an oil additive is not
necessary when the proper oil type is used
and maintenance intervals are followed.
Oil which may contain foreign matter or has
been previously used should not be used.
Oil viscosity
The engine oil viscosity or thickness changes
with temperature. Because of this, it is impor-
tant to select the engine oil viscosity based on
the temperatures at which the vehicle will be
operated before the next oil change. Choos-
ing an oil viscosity other than that recom-
mended could cause serious engine damage.
Selecting the correct oil filter
Your new INFINITI vehicle is equipped with a
high-quality Genuine NISSAN oil filter. When
replacing, use a Genuine NISSAN oil filter or
its equivalent for the reason described in
“Change intervals”.
Change intervals
The oil and oil filter change intervals for your
engine are based on the use of the specified
quality oils and filters. Using engine oil and
filters that are not of the specified quality, or
exceeding recommended oil and filter change
intervals could reduce engine life.
LTI2061
10-6Technical and consumer information

CAUTION
Damage to engine caused by improper
maintenance or use of incorrect oil and fil-
ter quality and/or viscosity is not covered
by the INFINITI New Vehicle Limited
Warranty.
Your engine was filled with a high-quality
engine oil when it was built. You do not have
to change the oil before the first recom-
mended change interval. Oil and filter change
intervals depend upon how you use your ve-
hicle.
Operation under the following conditions
may require more frequent oil and filter
changes: ∙ repeated short distance driving at cold outside temperatures
∙ driving in dusty conditions
∙ extensive idling
∙ towing a trailer
∙ stop and go commuting
For additional information on maintenance
schedules, refer to the “Maintenance and
schedules” section of this manual.
AIR CONDITIONER SYSTEM
REFRIGERANT AND OIL
RECOMMENDATIONS
The air conditioner system in your INFINITI
vehicle must be charged with the refrigerant
HFC-134a (R-134a) and the oil, Genuine
NISSAN A/C System Oil Type ND-OIL8 or
the exact equivalents.
CAUTION
The use of any other refrigerant or oil will
cause severe damage to the air condition-
ing system and will require the replacement
of all air conditioner system components.
The refrigerant HFC-134a (R-134a) in your
INFINITI vehicle does not harm the earth’s
ozone layer. Although this refrigerant does
not affect the earth’s atmosphere, certain
government regulations require the recovery
and recycling of any refrigerant during auto-
motive air conditioner system service. An
INFINITI retailer has the trained technicians
and equipment needed to recover and recycle
your air conditioner system refrigerant.
It is recommended that you visit an INFINITI
retailer when servicing your air conditioner
system.
Technical and consumer information10-7

∙ While going downhill, the weight of thetrailer pushing on the tow vehicle may
decrease overall stability. Therefore, to
maintain adequate control, reduce your
speed and shift to a lower gear. Avoid
long or repeated use of the brakes when
descending a hill, as this reduces their
effectiveness and could cause overheat-
ing. Shifting to a lower gear instead pro-
vides “engine braking” and reduces the
need to brake as frequently.
∙ If the engine coolant temperature rises to a high temperature, refer to “If your ve-
hicle overheats” in the “In case of emer-
gency” section of this manual.
∙ Trailer towing requires more fuel than normal circumstances.
∙ Avoid towing a trailer for your vehicle’s first 500 miles (805 km).
∙ For the first 500 miles (805 km) that you do tow, do not drive over 50 mph
(80 km/h).
∙ Have your vehicle serviced more often than at intervals specified in the recom-
mended maintenance schedule in the
“Maintenance and schedules” section of
this manual. ∙ When making a turn, your trailer wheels
will be closer to the inside of the turn than
your vehicle wheels. To compensate for
this, make a larger than normal turning
radius during the turn.
∙ Crosswinds and rough roads will ad- versely affect vehicle/trailer handling,
possibly causing vehicle sway. When be-
ing passed by larger vehicles, be prepared
for possible changes in crosswinds that
could affect vehicle handling.
Do the following if the trailer begins to sway: 1. Take your foot off the accelerator pedal to allow the vehicle to coast and steer as
straight ahead as the road conditions
allow. This combination will help stabilize
the vehicle
– Do not correct trailer sway by steering or applying the brakes.
2. When the trailer sway stops, gently ap- ply the brakes and pull to the side of the
road in a safe area.
3. Try to rearrange the trailer load so it is balanced as described in this section. ∙ Be careful when passing other vehicles.
Passing while towing a trailer requires
considerably more distance than normal
passing. Remember, the length of the
trailer must also pass the other vehicle
before you can safely change lanes.
∙ Downshift the transmission to a lower gear for engine braking when driving
down steep or long hills. This will help
slow the vehicle without applying the
brakes.
∙ Avoid holding the brake pedal down too long or too frequently. This could cause
the brakes to overheat, resulting in re-
duced braking efficiency.
∙ Increase your following distance to allow for greater stopping distances while
towing a trailer. Anticipate stops and
brake gradually.
∙ INFINITI recommends that the cruise control not be used while towing a trailer.
∙ Some states or provinces have specific regulations and speed limits for vehicles
that are towing trailers. Obey the local
speed limits.
Technical and consumer information10-27

You may notify INFINITI by contacting
our Consumer Affairs Department,
toll-free, at 1-800-662-6200.
For Canada
If you believe that your vehicle has a
defect which could cause a crash or
could cause injury or death, you should
immediately inform Transport Canada
in addition to notifying INFINITI.
If Transport Canada receives com-
plaints, it may open an investigation,
and if it finds that a safety defect ex-
ists in a group of vehicles, it may re-
quest that INFINITI conduct a recall
campaign. However, Transport
Canada cannot become involved in in-
dividual problems between you, your
retailer, or INFINITI.
You may contact Transport Canada’s
Defect Investigations and Recalls Divi-
sion toll free at 1-800-333-0510. You
may also report safety defects online
at: https://wwwapps.tc.gc.ca/Saf-
Sec-Sur/7/PCDB-BDPP/fc-
cp.aspx?lang=eng (English speakers) orhttps://wwwapps.tc.gc.ca/Saf-Sec-
Sur/7/PCDB-BDPP/fc-
cp.aspx?lang=fra (French speakers)
Additional information concerning mo-
tor vehicle safety may be obtained from
Transport Canada’s Road Safety Infor-
mation Centre at 1-800-333-0371 or
online at www.tc.gc.ca/roadsafety
(English speakers) or
www.tc.gc.ca/securiteroutiere (French
speakers).
To notify INFINITI of any safety con-
cerns please contact our Consumer In-
formation Centre toll free at 1-800-
361-4792.
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 be-
fore it is placed on a dynamometer. Using
the wrong test equipment may result in
transmission damage or unexpected vehicle
movement which could result in serious ve-
hicle 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
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST
Technical and consumer information10-31

Top tether strap anchor point
locations...................1-27
Child restraint with top tether strap ....1-27
Child safety rear door lock ...........3-6
Chimes, audible reminders ..........2-19
Cleaning exterior and interior ......7-2,7-4
Climate control seat switch .........2-47
C.M.V.S.S. certification label ........10-11
Cold weather driving .............5-191
Console box ..................2-58
Continuously Variable Transmission
(CVT) .......................5-19
Continuously Variable Transmission (CVT)
fluid.....................8-10
Driving with Continuously Variable
Transmission (CVT) ............5-19
Controls Heater and air conditioner controls . . .4-36
Coolant Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant ..........8-5
Checking engine coolant level .......8-5
Engine coolant temperature gauge ....2-6
Corrosion protection ..............7-7
Cruisecontrol..............5-75,5-76
Cupholders...................2-59
D
Diesel Particulate Filter (DPF) ........2-32
Dimensionsandweights...........10-9
Dimmer switch for instrument panel ....2-45
Distance Control Assist (DCA) system . .5-133
Door locks .................3-4,3-5 Drivebelt....................8-13
Drive positioner, Automatic
.....3-38,3-40
Driving Cold weather driving ...........5-191
Driving with Continuously Variable
Transmission (CVT) ............5-19
Precautions when starting and
driving .................5-4,5-11
Driving the vehicle ...............5-19
Dual panel moonroof .............2-71
Dual power moonroof .........2-71,2-71
Dynamic driver assistance switch
(for vehicles without ProPILOT Assist) . .2-49
E
E-call (SOS) Button ..............2-53
Economy - fuel ................5-173
Electronic parking brake ...........5-24
Emergency engine shutoff .......5-16,6-3
Emission control information label ....10-11
Emission control system warranty ....10-30
Engine Before starting the engine ........5-17
Block heater ................5-193
Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant ..........8-5
Changing engine oil .............8-6
Changing engine oil filter ..........8-6
Checking engine coolant level .......8-5
Checking engine oil level ..........8-6
Engine compartment check locations . .8-3
Engine coolant temperature gauge ....2-6
Engine cooling system ...........8-4 Engine oil
...................8-6
Engine oil and oil filter
recommendation ..............10-6
Engine oil pressure warning light ....2-11
Engine oil viscosity ............10-6
Engine serial number ..........10-11
Engine specifications ...........10-8
Starting the

engine ............5-17
Engine coolant temperature gauge ......2-6
Event Data recorders ............10-32
Exhaust gas (Carbon monoxide) .......5-4
Explanation of maintenance items ......9-2
Explanation of scheduled maintenance
items........................9-5
Extended storage switch ...........2-55
F
Flashers
(See hazard warning flasher switch) .....6-2
Flat tire ......................6-3
Floor mat positioning aid ............7-6
Fluid Brakefluid .................8-10
Capacities and recommended
fuel/lubricants............... 10-2
Continuously Variable Transmission (CVT)
fluid.....................8-10
Engine coolant ................8-4
Engine oil ...................8-6
Windshield-washerfluid.........8-11
F.M.V.S.S. certification label ........10-11
Fog light switch ................2-46
Forward Emergency Braking (FEB) with
Pedestrian Detection system ....2-12,5-150
11-2

Front air bag system
(See supplemental restraint system)....1-51
Front and rear sonar system ........5-187
Front and rear sonar system switch ....2-50
Front-door pocket ...............2-56
Front power seat adjustment .........1-3
Frontseats....................1-2
Fuel Capacities and recommended
fuel/lubricants...............10-2
Fuel economy ...............5-173
Fuel-filler door and cap ..........3-30
Fuel gauge ..................2-7
Fueloctanerating.............10-5
Fuel recommendation ...........10-3
Loose fuel cap warning ..........2-26
Fuel efficient driving tips ..........5-172
Fuel-filler door .................3-30
Fuel gauge ....................2-7
Fuses ......................8-18
Fusiblelinks...................8-19
G
Garage door opener, HomeLink® Universal
Transceiver............2-76,2-78,2-79
Gascap.....................3-30
Gauge Engine coolant temperature gauge ....2-6
Fuel gauge ..................2-7
Odometer ...................2-5
Speedometer ..............2-4,2-5
Tachometer .................2-6
Trip odometer .............2-4,2-5
General maintenance ..............9-2 Glovebox....................2-58
Gloveboxlock.................2-58
Grocery hooks
.................2-62
H
Hazard warning flasher switch ........6-2
Headlight aiming control ...........2-44
Headlight and turn signal switch ......2-40
Headlights ...................8-23
Headlights, aiming control ..........2-44
Headlight switch ...............2-40
Head restraints ..................1-7
Head Up Display (HUD) ............2-51
Heated seats ..................2-48
Heater Heater and air conditioner (automatic)
(if so equipped) ...............4-35
Heater and air conditioner controls . . .4-36
Heater operation .............4-37
Heater and air conditioner (automatic) . . .4-35
Heater and air conditioner settings .....4-42
Hill start assist system ............5-186
HomeLink® Universal
Transceiver............2-76,2-78,2-79
Hood .......................3-23
Hook Luggage hook ...............2-61
Horn.......................2-46
I
Ignition switch Push-button ignition switch .......5-13Immobilizer system
..............5-17
Important vehicle information label . . . .10-11
In-cabin microfilter ..............8-15
Increasing fuel economy ..........5-173
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders) .............2-9,2-10,2-16
INFINITI Drive Mode Selector ........5-29
INFINITI Intelligent Key System .....3-2,
3-7
INFINITI
InTouch™ Owner's Manual .....4-2
INFINITI Vehicle Immobilizer
System ...............2-34,3-4,5-17
Inside automatic anti-glare mirror .....3-35
Instrument brightness control ........2-45
Instrument panel .............0-6,2-2
Instrument panel dimmer switch ......2-45
Intelligent All-Wheel Drive (AWD) .....5-173
Intelligent Cruise Control (ICC)
(for vehicles without ProPILOT Assist) . . .5-77
Intelligent Key system Key operating range ............3-8
Keyoperation ...............3-10
Mechanical key ...............3-3
Remote keyless entry operation .....3-14
Troubleshooting guide ..........3-17
Warningsignals ..............3-17
Interiorlight................... 2-74
ISOFIX child restraints ............1-24
J
Jump starting ............... 6-5, 8-12
11-3

K
Key.........................3-2
Key fob battery replacement .........8-21
Keyless entry With Intelligent Key system
(See Intelligent Key system) .......3-14
L
Label Tire and Loading Information label . .10-12
Labels Air conditioner specification label . . .10-12
C.M.V.S.S. certification label ......10-11
Emission control information label . .10-11
Engine serial number ..........10-11
F.M.V.S.S. certification label ......10-11
Tire and Loading Information label . .10-12
Vehicle identification number (VIN) . .10-10
Vehicle identification number (VIN)
plate....................10-10
Warning labels (for SRS) .........1-63
Lane Departure Prevention (LDP) .....5-40
Lane Departure Warning (LDW) ......5-35
LATCH (Lower Anchors and Tethers for
CHildren)System ...............1-24
LED Daytime Running Lights (DRL)
system......................2-44
License plate Installing the license plate ........10-12
Liftgate.....................3-23
Liftgaterelease ................3-28
Light Airbagwarninglight........1-63,2-15 Brakelight(Seestoplight)........8-23
Bulb check/instrument panel
......2-10
Bulb replacement .............8-23
Charge warning light ...........2-11
ExteriorandInteriorlights........8-23
Foglights..................8-23
Fog light switch ..............2-46
Headlight and turn signal switch ....2-40
Headlights .................8-23
Interiorlight.................2-74
Lightbulbs.................8-23
Low tire pressure warning light .....2-12
Low windshield-washer fluid warning
light .....................2-26
Passenger air bag and status light . . .1-54
Personal lights ...............2-75
Security indicator light ..........2-18
Trunklight..................2-75
Warning/indicator lights and audible
reminders ...........2-9,2-10,2-16
Lights......................8-23 Maplights..................2-75
Lock Child safety rear door lock .........3-6
Door locks ...............3-4,3-5
Gloveboxlock...............2-58
Liftgaterelease ..............3-28
Power door locks ...........3-5,3-6
Loose fuel cap warning ............2-26
Lowfuelwarninglight ........2-14,2-26
Low tire pressure warning light .......2-12
Low windshield-washer fluid warning
light .......................2-26
Luggage hook .................2-61
Luggage rack (see roof rack) .....2-62,2-63Luggage
(See vehicle loading information)
.....10-14
M
Maintenance Generalmaintenance............9-2
Inside the vehicle ..............9-3
Maintenance precautions .........8-2
Outside the vehicle .............9-2
Seat belt maintenance ..........1-19
Under the hood and vehicle ........9-4
Maintenance log ................9-13
Maintenance requirements ..........9-2
Maintenance schedules ..........9-7, 9-7
Maintenance under severe operation
conditions....................9-12
Malfunctionindicatorlight..........2-17
Maplights.................... 2-75
Memory Seat ..............3-38,3-40
Meters and gauges ...............2-4
Instrument brightness control ......2-45
Mirror Automatic anti-glare inside mirror . . .3-35
Outside mirrors ..............3-36
Rearview .................. 3-35
Vanity mirror................ 3-34
Mirrors .....................

3-35
Moonroof ................. 2-71, 7-5
Moving Object Detection (MOD) ......4-29
O
Octane rating (See fuel octane rating) . . .10-5
11-4

Odometer.....................2-5
Oil Capacities and recommended
fuel/lubricants...............10-2
Changing engine oil .............8-6
Changing engine oil filter ..........8-6
Checking engine oil level ..........8-6
Engine oil ...................8-6
Engine oil and oil filter
recommendation ..............10-6
Engine oil viscosity ............10-6
Outside mirrors ................3-36
Overhead sunglasses holder .........2-58
Overheat If your vehicle overheats ..........6-7
Owner's manual order form ........10-33
Owner's manual/service manual order
information..................10-33
P
Parking Parking/parking on hills .........5-177
Parkingbrake..............2-11,2-16
Personal lights .................2-75
Power Power door locks ...........3-5,3-6
Power outlet ................2-54
Power rear windows ...........2-70
Power steering system .....5-177, 5-178
Power windows ..............2-68
Rear power windows ...........2-70
Power outlet ..................2-54
Power steering............5- 177, 5-178Precautions
Maintenance precautions .........8-2
On-pavement and off-road driving
precautions ..................5-9
Precautions on booster
seats..........1-23,1-29,1-35,1-40
Precautions on child
restraints .......1-23,1-29,1-35,1-40
Precautionsonseatbeltusage .....1-11
Precautions on supplemental restraint
system ....................1-43
Precautions when starting and
driving .................5-4,5-11
Predictive Forward Collision Warning
(PFCW)....................5-160
ProPILOT Assist ...............5-101
Push starting ...................6-7
R
Radio Car phone or CB radio ..........4-44
Rainsensor...................2-37
Readiness for inspection maintenance (I/M)
test.......................10-31
Rear Automatic Braking (RAB) . . .2-15, 5-145
Rear Cross Traffic Alert (RCTA) .......5-67
Rear power sunshade .............2-71
Rear power windows .............2-70
Rearview mirror ................3-35
RearView Monitor ...............4-3
Rear window defroster, outside mirror
defroster,andwiperdeicerswitch.....2-39
Rear window wiper and washer
switches .....................2-38 Recommended Fluids
.............10-2
Recorders EventData................ 10-32
Refrigerant recommendation ........10-7
Registering a vehicle in another
country .................... 10-10
Remote Engine Start .........3-20, 5-18
Reporting safety defects (US only) . . . .10-30
Roadside assistance program .........6-2
Roof rack ................2-62,2-63
S
Safety Child safety

rear door lock .........3-6
Child seat belts . . .1-23, 1-29, 1-35, 1-40
Reporting safety defects (US only) . .10-30
Seat adjustment Front power seat adjustment .......1-3
Second row bench seats ..........1-4
Seatback pockets ............... 2-56
Seat belt Childsafety.................1-20
Infantsandsmallchildren ........1-20
Injured Person ...............1-15
Largerchildren...............1-21
Precautionsonseatbeltusage .....1-11
Pregnant women .............1-14
Seat belt extenders ............1-19
Seat belt maintenance ..........1-19
Seat belts ...............1-11,7-7
Three-point type with retractor .....1-15
Seat belt extenders ..............1-19
Seat belt warning light .........1-14,2-15
11-5

Seats2nd row bench seat adjustment .....1-4
Adjustment ..................1-2
Armrests ...................1-5
Automatic drive positioner ....3-38,3-40
Frontseats..................1-2
Heated seats ................2-48
Seats/floor mats ................7-6
Security indicator light ............2-18
Security system (INFINITI vehicle immobilizer system),
engine start ..........2-34,3-4,5-17
Security systems Vehicle security system ..........2-33
Self-adjusting brakes .............8-18
Service manual order form .........10-33
Servicing air conditioner ...........4-43
Spark plug replacement ............8-14
Spark plugs ...................8-14
Specifications .................10-8
Speedometer ................2-4,2-5
Speedometer and odometer ..........2-4
SRS warning label ...............1-63
Stability control ................5-182
Standard maintenance .............9-9
Starting Before starting the engine ........5-17
Jump starting .............6-5,8-12
Precautions when starting and
driving .................5-4,5-11
Push starting .................6-7
Starting the engine ............5-17
Starting the engine ..............5-17
Steering Power steering system .....5-177, 5-178 Steering Assist switch
(for vehicles with ProPILOT Assist)
....2-50
Steering wheel .................3-33
Stoplight....................8-23
Storage.....................2-56
Storagebin...................2-61
Storagetray ..................2-57
Sunglasses case ................2-58
Sunglasses holder ...............2-58
Sunroof ..................2-71,7-5
Sunroof (see Moonroof) ...........2-71
Sun visors ....................3-34
Supplemental air bag warning labels ....1-63
Supplemental air bag warning
light....................1-63,2-15
Supplemental front impact air bag
system......................1-51
Supplemental restraint system Informationandwarninglabels.....1-63
Precautions on supplemental restraint
system ....................1-43
Supplemental restraint system
(Supplemental air bag system) ........1-43
Switch Autolight switch ..............2-40
Automatic power window switch ....2-70
Fog light switch ..............2-46
Hazard warning flasher switch ......6-2
Headlight aiming control .........2-44
Headlight and turn signal switch ....2-40
Instrument brightness control ......2-45
Power door lock switch .......3-5,3-6
Rear window wiper and washer
switches ...................2-38
Turn signal switch ............. 2
-45T
Tachometer ...................2-6
Temperature gauge Engine coolant temperature gauge ....2-6
Theft (INFINITI vehicle immobilizer system),
engine start ..........2-34, 3-4, 5-17
Three-way catalyst ...............5-4
Tire Flat tire ....................6-3
Tire and Loading Information label . .10-12
Tire chains ................. 8-34
Tirepressure................8-25
Tirerotation................ 8-34
Types of tires ................8-31
Uniform tire quality grading ......10-29
Wheels and tires ..............8-25
Wheel/tire size ...............10-9
Tire pressure Low tire pressure warning light .....2-12
Tire Pressure Monitoring System (TPMS) . .5-5
Top tether strap child restraint .......1-27
Towing 4-wheel drive models ...........6-10
Flattowing................10-28
Towing load/specification .......10-22
Towtrucktowing..............6-8
Trailertowing...............10-18
Towing a trailer ...............10-18
Traffic Sign Recognition (TSR) ........5-32
Transceiver HomeLink® Universal
Transceiver..........2-76,2-78,2-79
11-6