2020 INFINITI QX50 check engine

E–15 fuel
E-15 fuel is a mixture of approximately 15%
fuel ethanol and 85% unleaded gasoline.
E-15 can only be used in vehicles designed to
run on E-15 fuel. U.S. government regula-
tions require fuel ethanol dispensing pumps
to be identified with small, square, orange
and black label with the common abbrevia-
tion or the appropriate percentage for that
region.
E–85 fuel
E-85 fuel is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline.
E-85 can only be used in a Flexible Fuel Ve-
hicle (FFV). Do not use E-85 in your vehicle.
U.S. government regulations require fuel
ethanol dispensing pumps to be identified by
a small, square, orange and black label with
the common abbreviation or the appropriate
percentage for that region.
Fuel containing MMT
MMT, or methylcyclopentadienyl manganese
tricarbonyl, is an octane boosting additive.
INFINITI does not recommend the use of fuel
containing MMT. Such fuel may adversely
affect vehicle performance, including the
emissions control system. Note that while
some fuel pumps label MMT content, not alldo, so you may have to consult your gasoline
retailer for more details.
Aftermarket fuel additives
INFINITI does not recommend the use of any
aftermarket fuel additives (for example, fuel
injector cleaner, octane booster, intake valve
deposit removers, etc.) which are sold com-
mercially. Many of these additives intended
for gum, varnish or deposit removal may con-
tain active solvents or similar ingredients that
can be harmful to the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane rat-
ing lower than recommended can cause per-
sistent, heavy “spark knock.” (“Spark knock”
is a metallic rapping noise.) If severe, this can
lead to engine damage. If you detect a per-
sistent heavy spark knock even when using
gasoline of the stated octane rating, or if you
hear steady spark knock while holding a
steady speed on level roads, it is recom-
mended that you have an INFINITI retailer
correct the condition. Failure to correct the
condition is misuse of the vehicle, for which
INFINITI is not responsible.
Incorrect ignition timing may result in spark
knock, after-run and/or overheating, which
may cause excessive fuel consumption or en-
gine damage. If any of the above symptoms
are encountered, have your vehicle checked.
It is recommended that you visit an INFINITI
retailer.
However, now and then you may notice light
spark knock for a short time while accelerat-
ing or driving up hills. This is not a cause for
concern, because you get the greatest fuel
benefit when there is light spark knock for a
short time under heavy engine load.
Technical and consumer information10-5

∙ Load the trailer so approximately 60% ofthe trailer load is in the front half and
40% is in the back half. Also make sure
the load is balanced side to side.
∙ Check your hitch, trailer tire pressure, ve- hicle tire pressure, trailer light operation,
and trailer wheel lug nuts every time you
attach a trailer to the vehicle.
∙ Be certain your rearview mirrors conform to all federal, state or local regulations. If
not, install any mirrors required for tow-
ing before driving the vehicle.
∙ Determine the overall height of the ve- hicle and trailer so the required clearance
is known.
Trailer towing tips
In order to gain skill and an understanding of
the vehicle’s behavior, you should practice
turning, stopping and backing up in an area
which is free from traffic. Steering stability
and braking performance will be somewhat
different than under normal driving condi-
tions.
∙ Always secure items in the trailer to pre- vent load shift while driving. ∙ Lock the trailer hitch coupler with a pin or
lock to prevent the coupler from inadver-
tently becoming unlatched.
∙ Avoid abrupt starts, acceleration or stops.
∙ Avoid sharp turns or lane changes.
∙ Always drive your vehicle at a moderate speed.
∙ When backing up, hold the bottom of the steering wheel with one hand. Move your
hand in the direction in which you want
the trailer to go. Make small corrections
and back up slowly. If possible, have
someone guide you when you are back-
ing up.
Always block the wheels on both vehicle and
trailer when parking. Parking on a slope is not
recommended; however, if you must do so:
CAUTION
If you move the shift selector to the P
(Park) position before blocking the wheels
and applying the parking brake, transmis-
sion damage could occur. 1. Apply and hold the brake pedal.
2. Have someone place blocks on the
downhill side of the vehicle and trailer
wheels.
3. After the wheel blocks are in place, slowly release the brake pedal until the
blocks absorb the vehicle load.
4. Apply the parking brake.
5. Shift the transmission into P (Park).
6. Turn off the engine.
To drive away: 1. Start the vehicle.
2. Apply and hold the brake pedal.
3. Shift the transmission into gear.
4. Release the parking brake.
5. Drive slowly until the vehicle and trailer are clear from the blocks.
6. Apply and hold the brake pedal.
7. Have someone retrieve and store the blocks.
10-26Technical and consumer information

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

11 Index
2nd row bench seat adjustment.......1-4
A
Active Engine Brake ............5-185
Active noise cancellation Active sound enhancement. .5-193, 5-194
Active Trace Control ............5-184
Aiming control, headlights .........2-44
Air bag (See supplemental restraint
system).....................1-43
Air bag system Front (See supplemental front impact air
bag system) ................1-51
Air bag warning labels ............1-63
Airbagwarninglight.........1-63,2-15
Air bag warning light,
supplemental ..............1-63,2-15
Air cleaner ...................8-15
Air cleaner housing filter ...........8-15
Air conditioner Air conditioner operation ........4-36
Air conditioner specification label . .10-12
Air conditioner system refrigerant and oil
recommendations ............10-7
Heater and air conditioner (automatic)
(if so equipped) ..............4-35
Heater and air conditioner controls . .4-36
Servicing air conditioner .........4-43
Alarm system
(See vehicle security system) ........2-33
Anchor point locations ............1-27 Antenna
....................4-44
Antifreeze ..................5-191
Anti-lock brake warning light ........2-10
Anti-lock Braking System (ABS) .....5-180
Armrests.....................1-5
Around View® Monitor ...........4-11
Audible reminders ...............2-19
Autolight switch ...............2-40
Automatic Automatic drive positioner . . .3-38, 3-40
Automatic power window switch . . .2-70
Automatic anti-glare inside mirror .....3-35
Automaticbrakehold ............5-26
Automatic door locks .............3-6
Automatic drive positioner .....3-38,3-40
B
Battery.................5- 191, 8-11
Charge warning light ...........2-11
Battery replacement .............8-21
INFINITI Intelligent Key .........8-21
Keyfob...................8-21
Before starting the engine ..........5-17
Belt (See drive belt) ..............8-13
Blind Spot Intervention® (BSI) .......5-54
Blind Spot Warning (BSW) .........5-46
Boosterseats.................1-40
Brake Anti-lock Braking System (ABS) . . .5-180
Brakefluid.................8-10
Brakelight(Seestoplight) .......8-23 Brake system
.............. 5-180
Brakewarninglight ...........2-10
Brake wear indicators ......2-19,8-18
Self-adjusting brakes ..........8-18
Brake Assist .................5-181
Brakefluid...................8-10
Brakes.....................8-18
Brake system ................5-180
Break-in schedule ..............5-171
Brightness control Instrument panel .............2-45
Bulb check/instrument panel ........2-10
Bulb replacement ...............8-23
C
Camera Aiding Sonar (parking sensor) . .4-24
Capacities and recommended
fuel/lubricants ................10-2
Cargoareastoragebin ...........2-61
Cargocover.................. 2-67
Cargo
(See vehicle

loading information) .....10-14
Car phone or CB radio ............4-44
Chassis control ...............5-184
Check tire pressure .............. 2-26
Child restraints .....1-20,1-20, 1-22, 1-24
LATCH (Lower Anchors and Tethers for
CHildren) System .............1-24
Precautions on child
restraints ......1-23, 1-29, 1-35, 1-40

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

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