ECU NISSAN LEAF 2020 Owner´s Manual

•Properly position the mats in the
floorwell using the floor mat posi-
tioning hook. For additional informa-
tion, refer to "Floor mat installation"
in this section.
• Make sure the floor mat does not in-
terfere with pedal operation.
• Periodically check the floor mats to
make sure they are properly
installed.
• Af ter cleaning the vehicle interior,
check the floor mats to make sure
they are properly installed.
The use of Genuine NISSAN floor mats can
extend the life of your vehicle carpet and
make it easier to clean the interior. Mats
should be maintained with regular clean-
ing and replaced if they become exces-
sively worn.
Floor mat installation
Your vehicle is equipped with floor mat po-
sitioning hook(s). The number and shape of
the floor mat positioning hooks for each
seating position varies depending on the
vehicle. When installing Genuine NISSAN floor mats,
follow the installation instructions provided
with the mat and the following:
1. Position the floor mat in the floorwell so
that the floor mat grommet holes are
aligned with the hook(s).
2. Secure the grommet holes into the hook(s) and ensure that the floor mat is
properly positioned.
3. Make sure the floor mat does not inter- fere with pedal operation. With the
power switch in the OFF position, the
selector lever in the P (Park) position fully
apply and release all pedals. The floor
mat must not interfere with pedal op-
eration or prevent the pedal from re-
turning to its normal position.
It is recommended that you visit a NISSAN
certified LEAF dealer for details about in-
stalling the floor mats in your vehicle. The illustration shows the location of floor
mat positioning hooks.
SEAT BELTS
The seat belts can be cleaned by wiping
them with a sponge dampened in a mild
soap solution. Allow the belts to dry com-
pletely in the shade before using them.
For additional information, refer to “Seat
belts” in the “Safety—Seats, seat belts and
supplemental restraint system” section of
this manual.
LVA0002X
Positioning hooks
7-6Appearance and care

that the secondary latch keeps the motor
hood from opening when the primary latch
is released.
When driving in areas using road salt or
other corrosive materials, check lubrica-
tion frequently.
Lights*:Clean the headlights on a regular
basis. Make sure that the headlights, stop
lights, tail lights, turn signal lights and other
lights are all operating properly and in-
stalled securely. Also check the aim of the
headlights.
Road wheel nuts (lug nuts)*: When check-
ing the tires, make sure that no wheel nuts
are missing, and check for any loose wheel
nuts. Tighten if necessary.
Tire rotation*: Tires should be rotated ev-
ery 7,500 miles (12,000 km).
Tires*: Check the pressure with a gauge
of ten and always prior to long distance
trips. If necessary, adjust the pressure in all
tires to the pressure specified. Check care-
fully for damage, cuts or excessive wear.
Tire Pressure Monitoring System (TPMS)
transmitter components: Replace the
TPMS transmitter grommet seal, valve core
and cap when the tires are replaced due to
wear or age. Wheel alignment and balance:
If the ve-
hicle pulls to either side while driving on a
straight and level road, or if you detect un-
even or abnormal tire wear, there may be a
need for wheel alignment.
If the steering wheel or seat vibrates at
normal highway speeds, wheel balancing
may be needed.
For additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada) in
the Warranty Information Booklet.
Windshield: Clean the windshield on a
regular basis. Check the windshield at least
every six months for cracks or other dam-
age. Have a damaged windshield repaired
by a qualified repair facility.
Wiper blades*: Check for cracks or wear if
they do not wipe properly.
Inside vehicle
The maintenance items listed here should
be checked on a regular basis, such as
when performing scheduled maintenance,
cleaning the vehicle, etc.
Accelerator pedal: Check the pedal for
smooth operation and make sure that the pedal does not catch or require uneven
effort. Keep the floor mat away from the
pedal.
Brake pedal:
Check the pedal for smooth
operation. If the brake pedal suddenly goes
down further than normal, the pedal feels
spongy or the vehicle seems to take longer
to stop, it is recommended that you visit a
NISSAN certified LEAF dealer immediately.
Keep the floor mat away from the pedal.
Brakes: Check that the brakes do not pull
the vehicle to one side when applied.
Electric shif t P (Park) position mecha-
nism: On a steep hill, check that the vehicle
is held securely while the vehicle is in the P
(Park) position without applying the brakes.
Parking brake: Check the parking brake
operation regularly. The vehicle should be
securely held on a steep hill with only the
parking brake applied. If the parking brake
cannot keep a vehicle position, it is recom-
mended that you visit a NISSAN certified
LEAF dealer for this service.
Seat: Check seat position controls such as
the seat adjusters, seatback recliners, etc.
to ensure that they operate smoothly and
that all latches lock securely in every posi-
tion. Check that the head restraints/
headrests move up and down smoothly
Maintenance and do-it yourself8-3

and that the locks (if so equipped) hold
securely in all latched positions.
Seat belts:Check that all parts of the seat
belt system (for example, buckles, anchors,
adjusters and retractors) operate properly
and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying,
wear or damage.
Steering wheel: Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure
that all warning lights and chimes are op-
erating properly.
Windshield defroster: Check that the air
emits from the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*: Check
that the wipers and washers operate prop-
erly and that the wipers do not streak.
Under hood and vehicle
The maintenance items listed here should
be checked periodically.
12-volt battery (except for maintenance
free batteries)*: Check the fluid level in
each cell. The fluid should be at the bottom of the filler opening. Vehicles operated in
high temperatures or under severe condi-
tions require frequent checks of the 12–volt
battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of elec-
tronic accessories that consume bat-
tery power when the EV system is not
running (Phone chargers, GPS, DVD
players, etc.)
2. Vehicle is not driven regularly and/or only driven short distances.
In these cases, the battery may need to
be charged to maintain battery health.
Brake fluid level*: Make sure that the brake
fluid level is between the MAX and MIN lines
on the reservoir.
Coolant level*: Check the coolant level
when the high voltage parts are cold. Make
sure that the coolant level is between the
MAX and MIN lines on the reservoir.
Fluid leaks: Check under the vehicle for
water or other fluid leaks af ter the vehicle
has been parked for a while. Water dripping from the air conditioner af ter use is normal.
If you should notice any leaks, check for
cause and have it corrected immediately.
Radiator and hoses:
Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure that the hoses have no cracks,
deformation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances, otherwise rust will form on the
floor pan and frame. At the end of winter,
the underbody should be thoroughly
flushed with plain water, being careful to
clean those areas where mud and dirt may
accumulate. For additional information, re-
fer to “Cleaning exterior” in the “Appearance
and care” section of this manual.
Windshield-washer fluid*: Check that
there is an adequate amount of fluid in the
reservoir.
8-4Maintenance and do-it yourself

When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The fol-
lowing are general precautions that should
be closely observed.
WARNING
• The EV system uses high voltage up
to approximately DC 400 volt. The
system can be hot during and af ter
starting and when the vehicle is shut
off. Be careful of both the high volt-
age and the high temperature. Obey
the labels that are attached to the
vehicle.
• Never disassemble, remove or re-
place high-voltage parts and cables
as well as their connectors. High-
voltage cables are colored orange.
• Disassembling, removing or replac-
ing those parts or cables can cause
severe burns or electric shock that
may result in serious injury or death.
The vehicle high-voltage system has
no user serviceable parts. It is recom-
mended that you visit a NISSAN cer-
tified LEAF dealer for any necessary
maintenance. •
Park the vehicle on a level surface,
apply the parking brake securely and
chock the wheels to prevent the ve-
hicle from moving. Push the P (Park)
position switch on the shif t lever or
place the vehicle into the N (Neutral)
position.
• If you must work with the EV (Electric
Vehicle) system is turned on, keep
hands, clothing, hair and tools away
from moving fans and any other
moving parts.
• Make sure that the power switch is in
the OFF or LOCK position when per-
forming any part replacement or
repairs.
• It is advisable to secure or remove
any loose clothing and remove any
jewelry, such as rings, watches, etc.
before working on your vehicle.
• Always wear eye protection when-
ever you work on your vehicle.
• Never get under the vehicle while it is
supported only by a jack. If it is nec-
essary to work under the vehicle,
support it with safety stands.
• Keep smoking materials, flames and
sparks away from the 12-volt battery.
CAUTION
• Do not work under the hood while
the motor compartment is hot. Push
the power switch in the OFF position
and wait until it cools down.
• Avoid direct contact with used cool-
ant. Improperly disposed coolant
and/or other vehicle fluids can dam-
age the environment. Always con-
form to local regulations for the dis-
posal of vehicle fluids.
• Never connect or disconnect the bat-
tery or any transistorized compo-
nent while the power switch is in the
ON position.
• Your vehicle is equipped with an au-
tomatic cooling fan. It may come on
at any time without warning, even if
the power switch is not in the ACC, ON
or READY to drive position. To avoid
injury, always disconnect the nega-
tive 12-volt battery cable before
working near the fan.
• Before performing any electrical
maintenance work on the vehicle
such as the battery, fuses or bulb re-
placement, confirm the following:
– The charge connector is removed
from the vehicle.
MAINTENANCE PRECAUTIONS
Maintenance and do-it yourself8-5

CHECKING COOLANT LEVEL
Check the coolant levelin the reservoir
when the high-voltage parts are cold. If
the coolant level is below the MIN level
OB,
open the reservoir cap and add coolant up
to the MAX level
OA. If the reservoir is empty,
check the coolant level in the coolant res-
ervoir when the high-voltage parts are
cold. If there is insufficient coolant in the
coolant reservoir, fill the coolant reservoir
with coolant up to the reservoir cap open-
ing and also add it to the reservoir up to the
MAX level
OA. Tighten the cap securely af ter adding cool-
ant.
For additional information on the location
of the coolant reservoir, refer to “Motor
compartment check locations” in this sec-
tion.
If the cooling system frequently requires
coolant, it is recommended that you visit
a NISSAN certified LEAF dealer.
CHANGING COOLANT
It is recommended that major cooling sys-
tem repairs should be performed by a
NISSAN certified LEAF dealer. The service
procedures can be found in the appropri-
ate NISSAN Service Manual.
Improper servicing can result in reduced
heater performance.
WARNING
• To avoid the danger of being scalded,
never change the coolant when the
motor compartment is hot.
• Never remove the coolant reservoir
cap when the motor compartment is
hot. Serious burns could be caused
by high-pressure fluid escaping from
the radiator. •
Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand
cleaner as soon as possible.
• Keep coolant out of reach of children
and pets.
Coolant must be disposed of properly.
Check your local regulations.
LDI3145
Maintenance and do-it yourself8-9

• Keep the 12-volt battery surface cleanand dry. Clean the 12-volt battery with a
solution of baking soda and water.
• Make certain the terminal connections are clean and securely tightened.
LDI3327
12-VOLT BATTERY
8-12Maintenance and do-it yourself

Replace the battery in the Intelligent Key as
follows:
1. Remove the mechanical key from theIntelligent Key. 2. Insert a small screwdriver into the slit of
the corner and twist it to separate the
upper part from the lower part. Use a
cloth to protect the casing.
3. Replace the battery with a new one. Recommended battery:
CR2025 or equivalent• Do not touch the internal circuit and electric 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 case. 4. Align the tips of the upper and lower
parts
O1, and then push them together
O2until it is securely closed.
5. Operate the buttons to check that it is functioning properly.
It is recommended that you visit a NISSAN
certified LEAF dealer for this service.
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device
may not cause harmful interference, and
SDI2451
SDI2452
Maintenance and do-it yourself8-23

If you plan to operate your vehicle in snowy
or icy conditions, NISSAN recommends the
use of SNOW tires or ALL SEASON tires on all
four wheels.
Snow tires
If snow tires are needed, it is necessary to
select tires equivalent in size and load rat-
ing to the original equipment tires. If you do
not, it can adversely affect the safety and
handling of your vehicle.
Generally, snow tires will have lower speed
ratings than factory equipped tires and
may not match the potential maximum
vehicle speed. Never exceed the maximum
speed rating of the tire.
If you install snow tires, they must be the
same size, brand, construction and tread
pattern on all four wheels.
For additional traction on icy roads, stud-
ded tires may be used. However, some U.S.
states and Canadian provinces prohibit
their use. Check local, state and provincial
laws before installing studded tires. Skid
and traction capabilities of studded snow
tires, on wet or dry surfaces, may be poorer
than that of non-studded snow tires.
TIRE CHAINS
Use of tire chains may be prohibited ac-
cording to location. Check the local laws
before installing tire chains. When installing
tire chains, make sure they are the proper
size for the tires on your vehicle and are
installed according to the chain manufac-
turer’s suggestions.
Use only SAE Class S chains.Class “S”
chains are used on vehicles with restricted
tire to vehicle clearance. Vehicles that can
use Class “S” chains are designed to meet
the SAE standard minimum clearances be-
tween the tire and the closest vehicle sus-
pension or body component required to
accommodate the use of a winter traction
device (tire chains or cables). The minimum
clearances are determined using the fac-
tory equipped tire size. Other types may
damage your vehicle.
Use chain tensioners when recommended
by the tire chain manufacturer to ensure a
tight fit. Loose end links of the tire chain
must be secured or removed to prevent
the possibility of whipping action damage
to the fenders or underbody. If possible,
avoid fully loading your vehicle when using
tire chains. In addition, drive at a reduced
speed. Otherwise, your vehicle may be damaged and/or vehicle handling and
performance may be adversely affected.
Tire chains must be installed only on the
front wheels and not on the rear wheels.
Do not use tire chains on dry roads. Driving
with tire chains in such conditions can
cause damage to the various mechanisms
of the vehicle due to some overstress.
8-36Maintenance and do-it yourself

(GAWR) for your vehicle. For addi-
tional information, refer to “Measure-
ment of weights” in this section.
Also check tires for proper inflation
pressures. For additional informa-
tion, refer to “Tire and Loading Infor-
mation label” in this section.
LOADING TIPS
• The GVW must not exceed theGVWR or GAWR.
• Do not load the front and rear axle to the GAWR. Doing so will exceed
the GVWR.
WARNING
• Properly secure all cargo with
ropes or straps to help prevent
it from sliding or shif ting. Do
not place cargo higher than the
seatbacks. In a sudden stop or
collision, unsecured cargo
could cause personal injury. •
Do not load your vehicle any
heavier than the GVWR or the
maximum front and rear
GAWRs. If you do, parts of your
vehicle can break, tire damage
could occur, or it can change
the way your vehicle handles.
This could result in loss of con-
trol and cause personal injury.
• Overloading not only can
shorten the life of your vehicle
and the tire, but can cause un-
safe vehicle handling and lon-
ger braking distances. This
may cause a premature tire
failure, which could result in a
serious accident and personal
injury. Failures caused by over-
loading are not covered by the
vehicle’s warranty.
MEASUREMENT OF WEIGHTS
Secure loose items to prevent
weight shif ts that could affect the
balance of your vehicle. When the ve-
hicle is loaded, drive to a scale and
weigh the front and the rear wheels
separately to determine axle loads.
Individual axle loads should not ex-
ceed either of the Gross Axle Weight
Ratings (GAWR). The total of the axle
loads should not exceed the Gross
Vehicle Weight Rating (GVWR). These
ratings are given on the vehicle cer-
tification label. If weight ratings are
exceeded, move or remove items to
bring all weights below the ratings.
Technical and consumer information9-13

20590. You can also obtain other in-
formation about motor vehicle safety
from http://www.safercar.gov.
You may notif y NISSAN by contact-
ing our Consumer Affairs Depart-
ment, toll-free, at 1-800-NISSAN-1.
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 Trans-
port Canada in addition to notif ying
NISSAN.
If Transport Canada receives com-
plaints, it may open an investigation,
and if it finds that a safety defect
exists in a group of vehicles, it may
request that NISSAN conduct a recall
campaign. However, Transport
Canada cannot become involved in
individual problems between you,
your dealer, or NISSAN.You may contact Transport Cana-
da's Defect Investigations and Re-
calls Division 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) or https://
wwwapps.tc.gc.ca/Saf-Sec-Sur/7/
PCDB-BDPP/fc-cp.aspx?lang=fra
(French speakers)
Additional information concerning
motor vehicle safety may be ob-
tained from Transport Canada's
Road Safety Information 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 notif y NISSAN of any safety con-
cerns please contact our Consumer
Information Centre toll free at 1-800-
387-0122.
In addition to Event Data Recorders (EDRs)
mentioned in this Owner's Manual, this ve-
hicle is equipped with electronic modules
that monitor, control and record data con-
cerning various vehicle systems, including
the motor, batteries, braking and electrical
systems. Other electronic modules record
information concerning driving conditions,
including idling, braking, acceleration, trip
and other related data, information about
your use of the car and its features such as
air conditioner or headlight usage, diag-
nostic trouble codes, vehicle charging, ve-
hicle speed, direction and/or location.
Some of this data is stored by the vehicle
for use during vehicle servicing. Other data
concerning your vehicle's operation and
performance is wirelessly transmitted by
cellular connection through the vehicle on-
board telematics system upon vehicle
start-up or at other intervals to NISSAN.
This data may be used by NISSAN for vari-
ous purposes, including: to provide you
with NissanConnect® EV & Services or
NissanConnect® Services (For additional
information, refer to “NissanConnect®
Manual (for Leaf )”.); troubleshooting; evalu-
ation of your vehicle's quality, functionality
and performance; analysis and research
by NISSAN designed to, among other
things, optimize performance of future
TELEMATICS OVERVIEW (models
with Navigation System)
9-16Technical and consumer information