2014 NISSAN LEAF ECU

When driving in areas using road salt or other
corrosive materials, check lubrication 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 installed securely. Also
check the aim of the headlights.
Road wheel nuts (lug nuts)*:When checking
the tires, make sure that no wheel nuts are miss-
ing, and check for any loose wheel nuts. Tighten
if necessary.
Tire rotation*:Tires should be rotated every
7,500 miles (12,000 km) .
Tires*:Check the pressure with a gauge often
and always prior to long distance trips. If neces-
sary, adjust the pressure in all tires to the pres-
sure specified. Check carefully 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 vehicle
pulls to either side while driving on a straight and
level road, or if you detect uneven 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 In-
formation Booklet.
Windshield:Clean the windshield on a regular
basis. Check the windshield at least every six
months for cracks or other damage. Have a dam-
aged windshield repaired by a qualified repair
facility.
Windshield 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 per-
forming scheduled maintenance, cleaning the ve-
hicle, 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 op-
eration and make sure that it has the properdistance under it when depressed fully. Check
the brake booster function. If the brake pedal
suddenly goes down further than normal, the
pedal feels spongy or the vehicle seems to take
longer to stop, contact 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 shift P (Park) position mechanis-
m:On a steep hill, check that the vehicle is held
securely while the vehicle is in the P (Park) posi-
tion without applying the brakes.
Parking brake:Check the parking brake opera-
tion 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 posi-
tion contact a NISSAN certified LEAF dealer.
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 position. Check that the
head restraints/headrests move up and down
smoothly and that the locks (if so equipped) hold
securely in all latched positions.
Maintenance and do-it yourself8-3

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 web-
bing 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 operating properly.
Windshield defroster:Check that the air emits
from the defroster outlets properly and in suffi-
cient quantity when operating the heater or air
conditioner.
Windshield wiper and washer*:Check that
the wipers and washers operate properly and
that the wipers do not streak.
Under hood and vehicle
The maintenance items listed here should be
checked periodically.
12-volt battery (for serviceable battery)*:
Check the fluid level in each cell.
It should be between the MAX and MIN lines.
Vehicles operated in high temperatures or undersevere conditions require frequent checks of the
12-volt battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as:
1. Installation or extended use of electronic ac-
cessories that consume battery power when
the engine 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 motor compartment is cold.
Fluid leaks:Check under the vehicle for water
or other fluid leaks after the vehicle has been
parked for a short period of time. Water dripping
from the air conditioner after use is normal. If you
notice any leaks, check for the 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 ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances, other-
wise rust will form on the floor pan and frame. At
the end of winter, the underbody should be thor-
oughly flushed with plain water, being careful to
clean those areas where mud and dirt may accu-
mulate. For additional information, see “Cleaning
exterior” in the “Appearance and care” section.
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 maintenance
work on your vehicle, always take care to prevent
serious accidental injury to yourself or damage to
the vehicle. The following are general precau-
tions that should be closely observed.
WARNING
• The EV (Electric Vehicle) system uses
high voltage up to approximately DC
400 volt. The system can be hot during
and after starting and when the vehicle
is shut off. Be careful of both the high
voltage and the high temperature.
Obey the labels that are attached to
the vehicle.
• Never disassemble, remove or replace
high-voltage parts and cables as well
as their connectors. High-voltage
cables are colored orange.
• Disassembling, removing or replacing
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 ser-
viceable parts. Take your vehicle to the
NISSAN certified 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 shift 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 mov-
ing parts.
• Make sure that the power switch is in
the OFF or LOCK position when per-
forming any part replacement or re-
pairs.
• 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 whenever
you work on your vehicle.
• Never get under the vehicle while it is
supported only by a jack. If it is neces-
sary 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 coolant.
Improperly disposed coolant and/or
other vehicle fluids can damage the
environment. Always conform to local
regulations for the disposal of vehicle
fluids.
• Never connect or disconnect the bat-
tery or any transistorized component
while the power switch is in the ON
position.
• Your vehicle is equipped with an auto-
matic 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 in-
jury, always disconnect the negative
12-volt battery cable before working
near the fan.
• Before performing any electrical main-
tenance work on the vehicle such as
the battery, fuses or bulb replacement,
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
2, open the reservoir
cap and add coolant up to the MAX level
1.If
the reservoir is empty, check the coolant level in
the coolant tankwhen the high voltage parts
are cold.If there is insufficient coolant in the
coolant tank, fill the coolant tank with coolant up
to the reservoir cap opening and also add it to the
reservoir up to the MAX level
1.
Tighten the cap securely after adding coolant.If the cooling system frequently requires
coolant, have it checked by a NISSAN cer-
tified LEAF dealer.
CHANGING COOLANT
Major cooling system repairs should be per-
formed 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 tank 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.
Maintenance and do-it yourself8-9

• Keep the 12-volt battery surface clean and dry.
Clean the 12-volt battery with a solution of
baking soda and water.
• Make certain the terminal connections are clean
and securely tightened.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as:
1. Installation or extended use of electronic ac-
cessories that consume battery power when
the engine 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 battery
fluid to contact your skin, eyes, fabrics
or painted surfaces. After touching a
12-volt battery or 12-volt battery cap,
do not touch or rub your eyes. Thor-
oughly wash your hands. If the acid
contacts your eyes, skin or clothing,
immediately flush with water for at
least 15 minutes and seek medical at-
tention.
• 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 pro-
tection and remove all jewelry.
• 12-volt battery posts, terminals and re-
lated accessories contain lead and
lead compounds. Wash hands after
handling.
• Keep the 12-volt battery out of the
reach of children.Check the fluid level in each cell. It should be
between the UPPER LEVEL
1and LOWER
LEVEL
2lines.
If it is necessary to add fluid, add only distilled
water to bring the level to the indicator in each
filler opening.Do not overfill.
12-VOLT BATTERY
8-12Maintenance and do-it yourself

4. Align the tips of the upper and lower parts1,
and then push them together
2until it is
securely closed.
5. Operate the buttons to check that it is func-
tioning properly.
See a NISSAN certified LEAF dealer if you need
any assistance for replacement.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 (2) this
device must accept any interference re-
ceived, including interference that may
cause undesired operation.
NOTE:
Changes or modifications not expressly ap-
proved by the party responsible for compli-
ance could void the user’s authority to op-
erate the equipment.
For Canada:
This device complies with RSS-210 of In-
dustry Canada. Operation is subject to the
following two conditions: (1) this device
may not cause interference, and (2) this
device must accept any interference, in-
cluding interference that may cause unde-
sired operation of the device.
8-20Maintenance and do-it yourself

Checking tire pressure
1. Remove the valve stem cap from the tire.
2. Press the pressure gauge securely onto the
valve stem. Do not press too hard or force the
valve stem sideways, otherwise air will es-
cape. If the hissing sound of air escaping from
the tire is heard while checking the pressure,
reposition the gauge to eliminate this leakage.
3. Remove the gauge.
4. Read the tire pressure on the gauge stem and
compare it to the specification shown on the
Tire and Loading Information label.5. Add air to the tire as necessary. If too much air
is added, press the core of the valve stem
briefly with the tip of the gauge stem to re-
lease pressure. Recheck the pressure and
add or release air as necessary.
6. Install the valve stem cap.
7. Check the pressure of all of the tires.
SIZECOLD TIRE
INFLATION
PRESSURE
FRONT
ORIGINAL
TIREP205/55R16
89H250 kPa,
36 PSI
FRONT
ORIGINAL
TIREP215/50R17
90V250 kPa,
36 PSI
REAR
ORIGINAL
TIREP205/55R16
89H250 kPa,
36 PSI
REAR
ORIGINAL
TIREP215/50R17
90V250 kPa,
36 PSI
TIRE LABELING
Federal law requires tire manufacturers to place
standardized information on the sidewall of all
tires. This information identifies and describes
the fundamental characteristics of the tire and
also provides the tire identification number (TIN)
for safety standard certification. The TIN can be
used to identify the tire in case of a recall.
Example
8-28Maintenance and do-it yourself

tires are identified by ALL SEASON and/or M&S
(Mud and Snow) on the tire sidewall. Snow tires
have better snow traction than All Season tires
and may be more appropriate in some areas.
Summer tires
NISSAN specifies summer tires on some models
to provide superior performance on dry roads.
Summer tire performance is substantially re-
duced in snow and ice. Summer tires do not have
the tire traction rating M&S on the tire sidewall.
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 rating 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 rat-
ings 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, studded 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 according 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
manufacturer’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 stan-
dard minimum clearances between the tire and
the closest vehicle suspension or body compo-
nent required to accommodate the use of a win-
ter traction device (tire chains or cables) . The
minimum clearances are determined using thefactory equipped tire size. Other types may dam-
age 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.
Maintenance and do-it yourself8-31