battery replacement INFINITI QX50 2020 Owner's Manual

47. Not Available: Visibility is impaired (if soequipped)
48. Press Brake Pedal (if so equipped)
49. Power turned off to save the battery
50. Shift system malfunction. Visit dealer
51. Check position of shift lever
52. Shift to P range
53. Currently not available
54. Rear Automatic Braking (RAB) indicator
55. Speed Limit Sign indicator (if so equipped)
56. System fault See Owner’s Manual
57. Engine Stalled Stop safely
58. Engine Malfunction Power reduced Ser- vice now
59. Engine Malfunction Service now
60. Engine hot Power reduced
61. CVT hot Power reduced
No Key Detected
This warning appears when the Intelligent
Key is left outside the vehicle with the ignition
switch in the ON position. Make sure the
Intelligent Key is inside the vehicle. For additional information, refer to “INFINITI
Intelligent Key System” in the “Pre-driving
checks and adjustments” section of this
manual.
Key ID Incorrect
This warning appears when the ignition
switch is placed in the OFF position and the
Intelligent Key is not recognized by the sys-
tem. You cannot start the engine with an
unregistered key.
For additional information, refer to “INFINITI
Intelligent Key System” in the “Pre-driving
checks and adjustments” section of this
manual.
Key Battery Low
This indicator illuminates when the Intelligent
Key battery is running out of power.
If this indicator illuminates, replace the bat-
tery with a new one. For additional informa-
tion, refer to “Battery replacement” in the
“Do-it-yourself” section of this manual.
Key System Error: See Owner’s Manual
After the ignition switch is pushed to the ON
position, this light comes on for a period of
time and then turns off.
The Key System Error message warns of a
malfunction with the Intelligent Key system.
If the light comes on while the engine is
stopped, it may be impossible to start the
engine.
If the light comes on while the engine is run-
ning, you can drive the vehicle. However in
these cases, have the system checked. It is
recommended that you visit an INFINITI re-
tailer for this service.
Key Registration Complete
This appears when a new Intelligent Key is
registered to the vehicle.
Push brake and start switch to drive
This indicator appears when the shift lever is
in the P (Park) position.
This indicator also appears when the vehicle
has been started using the Remote Engine
Start (if so equipped) function.
This indicator means that the engine will start
by pushing the ignition switch with the brake
pedal depressed. You can start the engine
from any position of the ignition switch.
Instruments and controls2-25

Since the Intelligent Key is continuously re-
ceiving radio waves, if the key is left near
equipment which transmits strong radio
waves, such as signals from a TV and per-
sonal computer, the battery life may become
shorter.
For additional information, refer to “Battery
replacement” in the “Do-it-yourself” section
of this manual.
CAUTION
Listed below are conditions or occurrences
which will damage the Intelligent Key:
∙ Do not allow the Intelligent Key, whichcontains electrical components, to come
into contact with water or salt water.
This could affect the system function.
∙ Do not drop the Intelligent Key.
∙ Do not strike the Intelligent Key sharply against another object.
∙ Do not change or modify the Intelligent Key.
∙ Wetting may damage the Intelligent Key. If the Intelligent Key gets wet, immedi-
ately wipe until it is completely dry. ∙ Do not place the Intelligent Key for an
extended period in an area where tem-
peratures exceed 140°F (60°C).
∙ Do not attach the Intelligent Key with a key holder that contains a magnet.
∙ Do not place the Intelligent Key near equipment that produces a magnetic
field, such as a TV, audio equipment and
personal computers.
If an Intelligent Key is lost or stolen, INFINITI
recommends erasing the ID code of that In-
telligent Key from the vehicle. This may pre-
vent the unauthorized use of the Intelligent
Key to operate the vehicle. For information
regarding the erasing procedure, it is recom-
mended that you visit an INFINITI retailer.
OPERATING RANGE
The Intelligent Key functions can only be used
when the Intelligent Key is within the speci-
fied operating range from the door handle
request switch or the one touch unlock sen-
sor
1.
LPD2054
3-8Pre-driving checks and adjustments

SymptomPossible CauseRemedy
When pushing the ignition switch to
start the engine The Key Battery Low warning appears
on the display.
The battery charge may be getting low.Replace the battery with a new one. For
additional information, refer to “Battery
replacement” in the “Do-it-yourself” sec-
tion of this manual.
The No Key Detected warning appears
on the display, the outside chime sounds
three times and the inside warning
chime sounds for approximately 3 sec-
onds. The battery charge may be getting low.
Replace the battery with a new one. For
additional information, refer to “Battery
replacement” in the “Do-it-yourself” sec-
tion of this manual.
When pushing the ignition switch The Key System Error: See Owner’s
Manual warning appears on the display. It warns of a malfunction with the Intel-
ligent Key system.It is recommended that you visit an
INFINITI retailer.
LOG-IN FUNCTION
After setting up the user information, the
system will automatically recognize the user
upon turning on the vehicle.
There will be a personalized welcome greet-
ing and screen prompt to log in.
This feature allows four drivers to use their
own registration, drive mode, driving posi-
tion, air conditioner, and auto settings and
memorizes these custom settings.
The log-in user can be changed on the wel-
come greeting screen or the User List screen.
For additional information, refer to the sepa-
rate INFINITI InTouch™ Owner’s Manual. The log-in function is linked to the following
features:
∙ Meter
∙ Audio
∙ Navigation system display
∙ Navigation settings
∙ Air conditioner
∙
Automatic drive positioner (if so equipped)
∙ Engine/transmission
∙ Steering
∙ Suspension (if so equipped)
∙ Active trace control system ∙ Driver assistance except for the Forward
Emergency Braking (FEB) with Pedes-
trian Detection system (if so equipped)
∙ Body Control Module (BCM)
Pre-driving checks and adjustments3-19

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 consecutive times in less than 1.5 sec-
onds, 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 ve- hicle in the P (Park) position.
2. Firmly apply the foot brake.
3. Touch the ignition switch with the Intel- ligent Key as illustrated. (A chime will
sound.) 4. Push the ignition switch while depress-
ing 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
battery discharge indicator may appear
in the vehicle information display even
when the Intelligent Key is inside the ve-
hicle. This is not a malfunction. To turn
off the Intelligent Key battery discharge
indicator, touch the ignition switch with
the Intelligent Key again.
∙ If the Intelligent Key battery discharge
indicator appears, replace the battery as
soon as possible. For additional informa-
tion, refer to “Battery replacement” in
the “Do-it-yourself” section of this
manual.
LSD3572
5-16Starting and driving

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 ...............8-6
Continuously Variable Transmission (CVT) fluid . . 8-10
Brake fluid ..................................... 8-10
Windshield-washer fluid ......................... 8-11
Windshield-washer fluid reservoir .............8-11
Battery ......................................... 8-11
Jump starting ............................... 8-12
Variable voltage control system .................8-13
Drive belt ...................................... 8-13
Spark plugs .................................... 8-14
Replacing spark plugs ....................... 8-14
Air cleaner ..................................... 8-15
In-cabin microfilter .......................... 8-15Windshield wiper blades
........................ 8-16
Cleaning .................................... 8-16
Replacing ................................... 8-16
Brakes ......................................... 8-18
Fuses .......................................... 8-18
Engine compartment ........................ 8-19
Passenger compartment .....................8-20
Battery replacement ............................ 8-21
INFINITI Intelligent Key ......................8-21
Lights ......................................... 8-23
Headlights .................................. 8-23
Fog lights (if so equipped) ...................8-23
Exterior and interior lights ...................8-23
Wheels and tires ............................... 8-25
Tire pressure ................................ 8-25
Tire labeling ................................. 8-28
Types of tires ............................... 8-31
Tire chains .................................. 8-34
Changing wheels

and tires ................... 8-34

When performing any inspection or mainte-
nance work on your vehicle, always take care
to prevent serious accidental injury to your-
self or damage to the vehicle. The following
are general precautions which should be
closely observed.
WARNING
∙ Park the vehicle on a level surface, applythe parking brake securely and block the
wheels to prevent the vehicle from mov-
ing. Move the shift lever to P (Park).
∙ Be sure the ignition switch is in the OFF or LOCK position when performing any
parts replacement or repairs.
∙ If you must work with the engine running, keep your hands, clothing, hair and tools
away from moving fans, belts and any
other moving parts.
∙ It is advisable to secure or remove any loose clothing and remove any jewelry,
such as rings, watches, etc. before work-
ing on your vehicle.
∙ Always wear eye protection whenever you work on your vehicle. ∙ Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition switch is in the OFF position and
the engine is not running. To avoid injury,
always disconnect the negative battery
cable before working near the fan.
∙ If you must run the engine in an enclosed space such as a garage, be sure there is
proper ventilation for exhaust gases to
escape.
∙ Never get under the vehicle while it is supported only by a jack. If it is necessary
to work under the vehicle, support it with
safety stands.
∙ Keep smoking materials, flame and sparks away from the fuel tank and
battery.
∙ Because the fuel lines on gasoline engine models are under high pressure even
when the engine is off, it is recommended
that you visit an INFINITI retailer for ser-
vice of the fuel filter or fuel lines.
CAUTION
∙ Do not work under the hood while theengine is hot. Turn the engine off and
wait until it cools down. ∙ Avoid contact with used engine oil and
coolant. Improperly disposed engine oil,
engine coolant and/or other vehicle flu-
ids can damage the environment. Always
conform to local regulations for disposal
of vehicle fluid.
∙ Never leave the engine or Continuously Variable Transmission (CVT) related
component harnesses disconnected
while the ignition switch is in the ON
position.
∙ Never connect or disconnect the battery or any transistorized component while
the ignition switch is in the ON position.
This “Do-it-yourself” section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A Genuine INFINITI service manual is also
available. For additional information, refer to
“Owner’s Manual/Service Manual order in-
formation” in the “Technical and consumer
information” section of this manual.
You should be aware that incomplete or im-
proper servicing may result in operating diffi-
culties or excessive emissions, and could af-
fect warranty coverage. If in doubt about any
servicing, it is recommended that you have it
done by an INFINITI retailer.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself

CAUTION
Be careful not to allow children to swallow
the battery or removed parts.
INFINITI INTELLIGENT KEY
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
A
into the slitBof the corner and twist it
to separate the upper part from the
lower part. Place a cloth over the screw-
driver to protect the casing.
LDI3308
BATTERY REPLACEMENT
Do-it-yourself8-21

3. Replace the battery with a new one.Recommended battery: CR2032 or
equivalent.
∙ Do not touch the internal circuit andelectric terminals as doing so could
cause a malfunction.
∙ Hold the battery by the edges. Holding the battery across the contact points
will seriously deplete the storage ca-
pacity.
∙ Make sure that the + side faces the bottom of the lower part.
4. Close the lid securely as illustrated with
CandD.
5. Operate the buttons to check the opera- tion.
If you need assistance with replacement, it is
recommended that you visit an INFINITI re-
tailer for this service. FCC Notice:
For USA:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions: (1) This device may not
cause harmful interference, and (2) this de-
vice must accept any interference received,
including interference that may cause unde-
sired operation.
Note: Changes or modifications not ex-
pressly approved by the party responsible
for compliance could void the user’s author-
ity to operate the equipment.
For Canada:
This device complies with Industry Canada
licence-exempt RSS standard(s). Operation
is subject to the following two conditions: (1)
this device may not cause interference, and
(2) this device must accept any interference,
including interference that may cause unde-
sired operation of the device.
LDI3309
8-22Do-it-yourself

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

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