2020 NISSAN LEAF ECU

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

10 Index
1
12-volt battery.................8-12
A
ABS (Anti-lock Braking System).....5-159Additional data recording (on vehicles
equipped with optional
ProPILOT Assist)
...............9-20Advanced air bag system.........1-49Air bag systemAdvanced air bag system........1-49Front-seat mounted side-impact
supplemental air bag system.....1-58Roof-mounted curtain side-impact
supplemental air bag system.....1-58Air bag warning labels............1-62Air bag warning light.........1-62, 2-21Air bag warning light,
supplemental..............1-62, 2-21Air conditionerAir conditioner specification label. . .9-9Air conditioning system refrigerant and
lubricant recommendations.......9-3AlarmHowtostopalarm
(refer to, vehicle security system)
. . .2-44Alcohol, drugs and driving..........5-9Antenna................... .4-43
Antifreeze...................5-169Anti-lock Braking System (ABS).....5-159Anti-lock Braking System (ABS) warning
light.......................2-16Appearance care
Exterior appearance care.........7-2Interior appearance care.........7-4At home af ter driving...........EV-21Audible reminders..............2-24Autolight switch...............2-49Autolight system...............2-49Automatic anti-glare inside mirror. . . .3-25Automatic climate control
(models with Navigation System). . . .4-35Automatic climate control
(models without Navigation System). .4-32Automatic door locks.............3-6Automatic Emergency Braking (AEB) with
Pedestrian Detection...........5-125Avoiding collision and rollover........5-7
B
Battery.....................8-2212-volt battery...............8-12Battery saver system..........2-53Li-ion battery.............EV-2, 2-7Li-ion battery available charge
gauge.................... .2-9Li-ion battery temperature gauge. . .2-7
Battery replacement
Key fob...................8-22Before driving your vehicle
(models with navigation system). . . .EV-15Before starting system...........5-14Blind Spot Intervention® (BSI).......5-47Blind Spot Warning (BSW)..........5-37Booster seats................ .1-39Brake...............5-19,5-20,8-17Anti-lock Braking System (ABS). . . .5-159Brake fluid.................8-10Brake system...............5-157BRAKE system warning light
(yellow)....................2-17BRAKE warning light (red)........2-17Parking brake operation.........5-20Brake fluid...................8-10Brake precautions.............5-157Brake system................5-157BRAKE system warning light (yellow). . .2-17BRAKE warning light (red)..........2-17Brightness control
Instrument panel.............2-54Bulb replacement...........8-24,8-25
C
Capacities and recommended
fuel/lubricants.................9-2Care of wheels.................7-3

Road accident precautions.........EV-9Roadside assistance program........6-2Rollover......................5-7Roof-mounted curtain side-impact
supplemental air bag system.......1-58
S
SafetyChild safety rear door lock.........3-6Child seat belts...............1-18Reporting safety defects.........9-15Scene guideAt home af ter driving..........EV-21Before driving your vehicle
(models with navigation system). . .EV-15Charging the Li-ion battery......EV-12Driving the vehicle............EV-18Parking the vehicle...........EV-20Starting your vehicle...........EV-17Seat beltChild safety.................1-18Infants....................1-19Injured person................1-13Larger children...............1-19Precautions on seat belt usage.....1-10Pregnant women..............1-13Rear center seat belt............1-16Seat belt cleaning..............7-6Seat belt extenders.............1-17Seat belt maintenance..........1-17Seat belts...................1-10Seat belts with pretensioners......1-61
Seat belt warning light..........2-21Shoulder belt height adjustment. . . .1-16Small children................1-19Three-point type..............1-13Seats........................1-2Heated seats................2-56Security system................2-43Security system (NISSAN Vehicle Immobilizer
System), engine start.........2-44, 5-14Security system (NISSAN Vehicle Immobilizer
System), EV system start.......2-44, 5-14Servicing climate control..........4-43Shif tingElectric shif t control system.......5-15Shoulder belt height adjustment......1-16Shoulder belt height adjustment, For front
seats.......................1-16Speedometer................. .2-6Stability control................5-160Starting
Before starting system..........5-14Jump starting................6-10Precautions when starting and
driving.................... .5-4Push starting................6-13Starting the traction motor.......5-15Status light, Front passenger air bag. . .1-52Steering
Heated steering wheel..........2-57Power steering system.........5-156Tilt steering column............3-23Stopping the vehicle..............6-5Storage.................... .2-61Stowing golf bags...............2-66
Sunglasses holder..............2-63Sun visors....................3-24Supplemental air bag warning labels. . .1-62Supplemental air bag warning
light....................1-62, 2-21Supplemental restraint system
Precautions on supplemental restraint
system
................... .1-43Supplemental Restraint System (SRS). . .1-43Switch
Autolight switch..............2-49ECO switch................ .2-55Fog light switch..............2-55Hazard warning flasher switch......6-2Headlight switch..............2-49Immediate charge switch. . .CH-48, 2-58Instrument brightness control.....2-54Power door lock switch........3-4, 3-6Rear window and outside mirror defroster
switch................... .2-48Rear window wiper and washer
switches...................2-47Turn signal switch.............2-54Wiper and washer switch........2-46
T
Telematic Control Unit Gen2K........9-18Telematics overview.............9-16Temperature
Li-ion battery temperature gauge. . . .2-7Thef t (NISSAN Vehicle Immobilizer System),
engine start...............2-44, 5-14
10-6Index