2020 NISSAN LEAF service

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

–The Climate Ctrl. Timer is not ac-
tive or operating. For additional
information, refer to “Climate Ctrl.
Timer” in the “Monitor, climate, au-
dio, phone and voice recognition
systems” section of this manual.
– The 12-volt battery is not being
charged by the Li-ion battery and
that all charging status indicator
lights are off. For additional infor-
mation, refer to “Charging the 12-
volt battery ” in the “EV overview”
section and “Charging status indi-
cator lights” in the “Charging” sec-
tion of this manual.
• The power switch is in the OFF posi-
tion. Place the power switch in the ON
position and then in the OFF position
to prevent the 12-volt battery auto-
matically being charged by the Li-ion
battery. For additional information,
refer to “Charging the 12-volt bat-
tery ” in the “EV overview” section of
this manual.
The “Maintenance and do-it-yourself ” sec-
tion gives instructions regarding only
those items that are relatively easy for an
owner to perform. A Genuine NISSAN Service Manual is also
available. For additional information, refer
to “Owner’s manual/service manual order
information” in the “Technical and con-
sumer information” section of this manual.
You should be aware that incomplete or
improper servicing may result in operating
difficulties and could affect your warranty
coverage.
If in doubt about any servicing,
it is recommended that you visit a
NISSAN certified LEAF dealer.
8-6Maintenance and do-it yourself

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

When checking or replacement is required,
it is recommended that you visit a NISSAN
certified LEAF dealer for this service.
CAUTION
• Use only Genuine NISSAN Matic S ATF.
Do not mix with other fluids.
• Using reduction gear fluid other than
Genuine NISSAN Matic S ATF will
cause deterioration in driveability
and reduction gear durability, and
may damage the reduction gear,
which is not covered by the NISSAN
New Vehicle Limited Warranty. For additional brake fluid information, refer
to “Recommended fluids/lubricants and
capacities” in the “Technical and consumer
information” section of this manual.WARNING
• Use only new fluid from a sealed con-
tainer. Old, inferior or contaminated
fluid may damage the brake system.
The use of improper fluids can dam-
age the brake system, and affect the
vehicle’s stopping ability.
• Clean the filler cap before removing.
• Brake fluid is poisonous and should
be stored carefully in marked con-
tainers out of the reach of children.
CAUTION
Do not spill the fluid on any painted sur-
faces. This will damage the paint. If fluid
is spilled, immediately wash the sur-
face with water. Check the fluid level in the reservoir. If the
fluid is below the MIN line
OBor the brake
warning light illuminates, add Genuine
NISSAN Super Heavy Duty Brake Fluid or
equivalent DOT 3fluid up to the MAX line
OA.
If fluid must be added frequently, the sys-
tem should be checked. It is recom-
mended that you visit a NISSAN certified
LEAF dealer for this service.
LDI3143
REDUCTION GEAR FLUID BRAKE FLUID
8-10Maintenance and do-it yourself

JUMP STARTING
Jump starting provides power to the 12 volt
system to allow the electrical systems to
operate. The electrical systems must be
operating to allow the Li-ion battery to be
charged. Jump starting does not chargethe Li-ion battery. The Li-ion battery must
be charged before the vehicle can be
driven.
For additional information, refer to “Jump
starting” in the “In case of emergency” sec-
tion of this manual. If the power switch
does not switch to the READY to drive posi-
tion by jump starting, the 12-volt battery
may have to be replaced. It is recom-
mended that you visit a NISSAN certified
LEAF dealer for this service.
CLEANING
If your windshield is not clear af ter using
the windshield washer or if a wiper blade
chatters when running, wax or other mate-
rial may be on the blade or windshield.
Clean the outside of the windshield with a
washer solution or a mild detergent. Your
windshield is clean if beads do not form
when rinsing with clear water.
Clean each blade by wiping it with a cloth
soaked in a washer solution or a mild de-
tergent. Then rinse the blade with clear wa-
ter. If your windshield is still not clear af ter
cleaning the blades and using the wiper,
replace the blades.
CAUTION
Worn windshield wiper blades can
damage the windshield and impair
driver vision.
REPLACING
Replace the wiper blades if they are worn.
LDI3181
WINDSHIELD WIPER BLADES
8-14Maintenance and do-it yourself

REAR WINDOW WIPER BLADE
It is recommended that you visit a NISSAN
certified LEAF dealer if checking or replace-
ment is required.If the brakes do not operate properly, have
the brakes checked. It is recommended
that you visit a NISSAN certified LEAF dealer
for this service.
WARNING
Do not adjust the height of the brake
pedal. Doing so could alter the effec-
tiveness of the brakes, which could re-
sult in a serious accident and personal
injury. If adjustment is required, it is
recommended that you visit a NISSAN
certified LEAF dealer for this service.
BRAKE PAD WEAR WARNING
The disc brake pads have audible wear
warnings. When a brake pad requires re-
placement, it will make a high pitched
scraping sound when the vehicle is in mo-
tion. This scraping sound will first occur
only when the brake pedal is depressed.
Af ter more wear of the brake pad, the
sound will always be heard even if the
brake pedal is not depressed. Have the
brakes checked as soon as possible if the
wear warning sound is heard. Under some driving or climate conditions,
occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is nor-
mal and does not affect the function or
performance of the brake system.
Proper brake inspection intervals should
be followed.
For additional information, re-
fer to the maintenance log section of your
NISSAN Service and Maintenance Guide.
BRAKES
Maintenance and do-it yourself8-17

6. If the fuse is openOA, replace it with a
new fuse
OB.
7. If a new fuse also opens, have the electri- cal system checked, and if necessary, re-
paired. It is recommended that you visit a
NISSAN certified LEAF dealer for this
service.
LDI3328LDI3331
Maintenance and do-it yourself8-19

Fusible links
If any electrical equipment does not oper-
ate and the fuses are in good condition,
check the fusible links in the holders
O1,O2
andO3. If any of these fusible links are
melted, replace only with Genuine NISSAN
parts.
For checking and replacing the fusible links
in the holders
O1,O2andO3, it is recom-
mended that you visit a NISSAN certified
LEAF dealer for this service.
LDI3476
8-20Maintenance and do-it yourself