2020 NISSAN LEAF battery

8 Maintenance and do-it yourself
Maintenance requirement.......................8-2
Scheduled maintenance .....................8-2
General maintenance ........................8-2
Where to go for service .......................8-2
General maintenance ...........................8-2
Explanation of maintenance items ...........8-2
Maintenance precautions .......................8-5
Motor compartment check locations ...........8-7
Cooling system .................................8-8
Checking coolant level .......................8-9
Changing coolant ............................8-9
Reduction gear fluid ............................ 8-10
Brake fluid ...................................... 8-10
Windshield-washer fluid .........................8-11
12-volt battery .................................. 8-12
Jump starting ............................... 8-14
Windshield wiper blades ........................8-14
Cleaning .................................... 8-14
Replacing ................................... 8-14Rear window wiper blade
...................8-17
Brakes ......................................... 8-17
Brake pad wear warning ....................8-17
Fuses .......................................... 8-18
Motor compartment ........................ 8-18
Passenger compartment ...................8-21
Nissan Intelligent Key® battery replacement ....8-22
Lights .......................................... 8-24
Headlights .................................. 8-25
Fog lights (if so equipped) ...................8-25
Exterior and interior lights ...................8-26
Wheels and tires ............................... 8-28
Tire pressure ................................ 8-28
Tire labeling ................................. 8-33
Types of tires ................................ 8-35
Tire chains .................................. 8-36
Changing wheels and tires ..................8-37
Emergency tire puncture repair kit ..........8-39

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

–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

1. Fuse/Fusible link holder
2. Brake fluid reservoir
3. 12-volt battery
4. Fuse holder
5. Windshield-washer fluid reservoir
6. Fuse/Fusible link holder
7. Coolant reservoir cap
LDI3464
MOTOR COMPARTMENT CHECK
LOCATIONS
Maintenance and do-it yourself8-7

• 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

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
WARNING
• Do not expose the 12-volt battery to
flames or electrical sparks. Hydrogen
gas generated by the 12-volt battery
is explosive. Do not allow 12-volt bat-
tery fluid to contact your skin, eyes,
fabrics or painted surfaces. Af ter
touching a 12-volt battery or 12-volt
battery cap, do not touch or rub your
eyes. Thoroughly wash your hands. If
the acid contacts your eyes, skin or
clothing, immediately flush with wa-
ter for at least 15 minutes and seek
medical attention. •
Do not operate the vehicle if the fluid
in the 12-volt battery is low. Low 12-
volt battery fluid can cause a higher
load on the 12-volt battery which can
generate heat, reduce battery life,
and in some cases lead to an
explosion.
• When working on or near a 12-volt
battery, always wear suitable eye
protection and remove all jewelry.
• 12-volt battery posts, terminals and
related accessories contain lead and
lead compounds. Wash hands af ter
handling.
• Keep the 12-volt battery out of the
reach of children. 1. Remove the vent caps with a screw-
driver as shown. Use a cloth to protect
the battery case.
2. Check the fluid level in each cell. If it is necessary to add fluid, add only distilled
water to bring the level up to the bottom
of the filler opening. Do not overfill.Re-
install the vent caps.
Vehicles operated in high temperatures or
under severe conditions require frequent
checks of the 12-volt battery fluid level.
WDI0224
Maintenance and do-it yourself8-13

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