2021 NISSAN LEAF heater

To set the automatic control mode, press
and hold theintake air control button.
The indicator light will blink twice and the
inside/outside circulation will then be con-
trolled automatically. When in automatic
mode, the indicator light will come on when
inside air recirculation is active.
Rear window and outside mirror (if so
equipped) defroster switch
For additional information, see “Rear win-
dow and outside mirror (if so equipped)
defroster switch” (P. 2-47).
To turn the system off
To turn off the climate control, press the
Climate control system OFF button. The
same operating mode (Heater or A/C) that
was active when the system is turned off is
active when system is turned back on.
AUTOMATIC CLIMATE CONTROL
(models with Navigation System)
1. Temperature control button
2.
HEAT button
3. Climate Ctrl. Timer indicator 4.
front defroster button
5.
fan speed control button
6.
Rear window and outside mirror (if
so equipped) defroster switch
7.
intake air control button
LHA2889
4-32Monitor, climate, audio, phone and voice recognition systems

8. Climate control system ON·OFF button
9. AUTO climate control ON button
10. MODE (manual air flow control) button
11. A/C (air conditioner) ON·OFF button
Automatic operation (AUTO)
The AUTO mode may be used year-round
as the system automatically controls con-
stant temperature, air flow distribution and
fan speed.
1. Press the AUTO button. The AUTO indica-tor will be illuminated.
2. Press the temperature control button to set the desired temperature.
When any of the following functions are
operated, the AUTO indicator will turn off.
• The
HEAT or A/C button is pressed.
• The fan speed control or ventilator air flow control is operated.
However, the functions that were not oper-
ated continue operating in AUTO mode.
NOTE:
• If thefan speed control button,
MODE button, orintake air control
button is operated while AUTO is in use,
all the other buttons operate in AUTO
mode.
• While the AUTO indicator is illuminated, electric power consumption of the air
conditioner can be economized com-
pared to the amount consumed while
the AUTO indicator is not illuminated.
The HEAT indicator light and the A/C indi-
cator light illuminates according to the op-
eration modes of the climate control
system.
Operation
mode A/C
indicator HEAT
indicator
Cooling
(HEAT off ) ON OFF
Heating
(A/C off ) OFF ON
Manual operation
The manual mode can be used to control
the heater and air conditioner to your de-
sired temperature. The HEAT indicator light and the A/C indi-
cator light illuminates according to the op-
eration modes.
Operation
mode
A/C
indicator HEAT
indicator
Cooling
(HEAT off ) ON OFF
Dehumidi-
fied heating ON ON
Heating
(A/C off ) OFF ON
Ventilation OFF OFF
Cooling
1. Press the A/C button to illuminate the A/C indicator light.
2. Press the
HEAT button to turn off
the HEAT indicator light.
• Do not set the temperature higher than the outside air temperature. Do-
ing so may prevent the temperature
from being controlled properly.
• A visible mist may be seen coming from the ventilators in hot, humid con-
ditions as the air is cooled rapidly. This
does not indicate a malfunction.
Monitor, climate, audio, phone and voice recognition systems4-33

Dehumidified heating
1. Press the A/C button to illuminate theA/C indicator light.
2. Press the
HEAT button to illuminate
the HEAT indicator light
NOTE:
Electric power consumption of climate
control increases while A/C button indi-
cator and
HEAT button indicator si-
multaneously illuminate. As a result, the
driving range may be decreased.
Heating (A/C off )
1. Press the
HEAT button to illuminate
the HEAT indicator light.
2. Press the A/C button to turn off the A/C indicator light.
• Do not set temperature lower than the outside air temperature. Doing so may
prevent the temperature from being
controlled properly.
• If the windows fog up, use dehumidi- fied heating instead of the A/C off
heating. Ventilation
Press the
HEAT button and A/C but-
ton if the indicator lights are on so that
both indicator lights turn off.
NOTE:
• The ventilation mode requires a lower power consumption, so cruising dis-
tance will increase.
• In ventilation mode, temperature is not indicated on the navigation monitor or
on the air conditioner display.
Dehumidified defrosting/defogging
Press the
front defroster button (the
indicator light will illuminate).
• To remove moisture or fog on the front window quickly, set the temperature to
the high temperature and the fan speed
to their maximum level.
• Af ter the windshield is cleared, press the
front defroster button again (the in-
dicator light will turn off ).
• When the
front defroster button is
pressed, the air conditioner and heater
will automatically turn on to defog the
windshield. The outside air recirculation
mode will be selected to improve the de-
fogging performance. Fan speed control
Press the
fan speed control button to
manually control the fan speed.
Press the AUTO button to change the fan
speed to the automatic mode.
Air flow control
Press the MODE button to change the air
flow mode.
Air flows from the center and
side ventilators.
Air flows from the center and
side ventilators and foot outlets.
Air flows mainly from the foot
outlets.
Air flows from the defroster out-
lets and foot outlets.
Air flows from the defroster
vents.
4-34Monitor, climate, audio, phone and voice recognition systems

Temperature control
Press the temperature control buttons to
set the desired temperature.
Air recirculation
Press the
intake air control button to
change the air circulation mode. When the
indicator light illuminates, the flowing air is
recirculated inside the vehicle.
When the outside temperature exceeds
70°F (21°C) the air conditioning system may
default to air recirculation mode automati-
cally to reduce overall power consumption.
To exit air recirculation mode, deselect the
air recirculation button (indicator will turn
off ) to enter fresh mode.
Outside air circulation
Press the
intake air control button to
change the air circulation mode. When the
indicator light does not illuminate, the flow-
ing air is drawn from outside the vehicle.
Automatic air intake control
In the AUTO mode, the intake air will be
controlled automatically. When the outside
temperature exceeds 70°F (21°C), the air
conditioning system may default to air re-
circulation mode automatically to reduce
overall power consumption. To set the automatic control mode, press
and hold the
intake air control button.
The indicator light will blink twice and the
inside/outside circulation will then be con-
trolled automatically. When in automatic
mode, the indicator light will come on when
inside air recirculation is active.
Rear window and outside mirror (if so
equipped) defroster switch
For additional information, see “Rear win-
dow and outside mirror (if so equipped)
defroster switch” (P. 2-47).
To turn the system off
To turn off the climate control, press the
Climate control system ON·OFF button.
The same operating mode (Heater or A/C)
that was active when the system is turned
off is active when system is turned back on.
CLIMATE CTRL. TIMER
This function pre-heats or pre-cools the
passenger compartment of the vehicle to
the temperature before driving. This helps
reduce power consumption from the Li-ion
battery.
The Climate Ctrl. Timer operates the air
conditioner using power from the charger
or the Li-ion battery. While the charging connector is connected to the vehicle,
electric power from the Li-ion battery is not
used.
The Climate Ctrl. Timer function allows two
timer settings.
Once the Climate Ctrl. Timer is set, it will
complete air conditioning by the time that
is set. It is not necessary to set the Climate
Ctrl. Timer every day.
WARNING
Even if the Climate Ctrl. Timer is set, the
temperature in the passenger com-
partment may become high or low if
the system automatically stops. Do not
leave children or adults who would nor-
mally require the support of others
alone in your vehicle. Pets should not
be lef t alone either. On hot, sunny days,
temperatures in a closed vehicle could
quickly become high enough to cause
severe or possibly fatal injuries to
people or animals. Also on cold days,
temperature in a vehicle could become
low enough to cause severe or possible
fatal injuries to people or animals.
Monitor, climate, audio, phone and voice recognition systems4-35

• Drive at a constant speed. Maintain cruis-ing speeds with a constant accelerator
position or by using cruise control when
appropriate.
• Accelerate slowly and smoothly. Gently press and release the accelerator pedal
for acceleration and deceleration.
• Drive at moderate speeds on the highway.
• Avoid frequent stopping and braking. Maintain a safe distance behind other
vehicles.
• Turn off the air conditioner/heater when it is not necessary.
• Select a moderate temperature setting for heating or cooling to help reduce
power consumption.
• Use the air conditioner/heater and close windows to reduce drag when cruising at
a highway speed. • Release the accelerator pedal to slow
down and do not apply the brakes when
traffic and road conditions allow.– This vehicle is equipped with a regen- erative brake system. The primary pur-
pose of the regenerative brake system
is to provide some power to recharge
the Li-ion battery and extend driving
range. A secondary benefit is “engine
braking” that operates based on Li-ion
battery conditions. In the D (Drive) posi-
tion, when the accelerator pedal is re-
leased, the regenerative brake system
provides some deceleration and some
power to the Li-ion battery. The ECO Drive Report appears for approxi-
mately 30 seconds af ter placing the power
switch in the OFF position, driving the ve-
hicle for more than 0.3 miles (500 m), and
pressing the
button on the steering
wheel.
ECO DRIVE REPORT
Starting and driving5-153

CAUTION
To prevent damage to the Li-ion bat-
tery: Do not store the vehicle in tem-
peratures below -13°F (-25°C) for over
seven days. If the outside temperature
is -13°F (-25°C) or less, the Li-ion battery
may freeze and it cannot be charged or
provide power to run the vehicle. Move
the vehicle to a warm location.
NOTE:
• Connect the charger to the vehicle and place the power switch in the OFF po-
sition when parking the vehicle if tem-
peratures may go below -4°F (-20°C).
For models with 40 kWh battery
model, this provides external power to
the Li-ion battery warmer (if so
equipped) when it operates and does
not discharge the Li-ion battery. Ve-
hicle driving range is reduced if the Li-
ion battery warmer (if so equipped) op-
erates (Li-ion battery temperature
approximately -4°F (-20°C) or colder)
while driving the vehicle. You may need
to charge the Li-ion battery sooner
than in warmer temperatures.
• The Li-ion battery requires more time to charge when the Li-ion battery
warmer (if so equipped) operates. • The predicted charging time displayed
on the meter and navigation system (if
so equipped) increases when the Li-ion
battery warmer (if so equipped)
operates.
• Vehicle range may be substantially re- duced in extremely cold conditions (for
example under -4°F (-20°C)).
• Using the climate control system to heat the cabin when outside tempera-
ture is below 32°F (0°C) uses more elec-
tricity and affects vehicle range more
than when using the heater when the
temperature is above 32°F (0°C).
• Climate control performance is re- duced when using the Climate Ctrl.
Timer or Remote Climate Control while
the Li-ion battery warmer (if so
equipped) operates (for models with
40 kWh battery model). Set only the
charging timer [End Time] when charg-
ing in cold weather. The vehicle auto-
matically determines when to start
charging to fully charge the Li-ion bat-
tery, even if the Li-ion battery warmer
operates. Charging ends before the set
end time if the Li-ion battery is fully
charged.
FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply
deicer through the key hole. If the lock be-
comes frozen, heat the key before inserting
it into the key hole or use the remote key-
less entry key fob.
ANTIFREEZE
In the winter when it is possible that the
outside temperature will drop below 32°F
(0°C), check the antifreeze to ensure proper
winter protection. For additional informa-
tion, see “Cooling system” (P. 8-5).
12-VOLT BATTERY
If the 12-volt battery is not fully charged
during extremely cold weather conditions,
the 12-volt battery fluid may freeze and
damage the 12-volt battery. To maintain
maximum efficiency, the 12-volt battery
should be checked regularly. For additional
information, see “12-volt battery” (P. 8-9).
DRAINING OF COOLANT WATER
If the vehicle is to be lef t outside without
antifreeze, drain the cooling system. Refill
before operating the vehicle. For additional
information, see “Cooling system” (P. 8-5).
COLD WEATHER DRIVING
Starting and driving5-169

CAUTION
LEAF cannot be used as a booster ve-
hicle because it cannot supply enough
power to start a gasoline engine. How-
ever, a gasoline engine vehicle can be
used to jump start LEAF's 12-volt
battery.
1. If the booster battery is in another ve-hicle
OB, position the two vehicles (OA)
and
OB) to bring their 12-volt batteries
into close proximity to each other.
Do not allow the two vehicles to touch.
2. Apply the parking brake. If the 12-volt battery is discharged, the
power switch cannot be moved from
the OFF position. Connect the jumper
cables to the booster vehicle
OBbe-
fore pushing the power switch.
3. Push the P (Park) position switch to place the vehicle in the P (Park) position. 4. Switch off all unnecessary electrical sys-
tems (headlights, heater, air conditioner,
etc.).
5. Place the power switch in the OFF position.
6. Ensure vent caps are level and tight.
7. Connect jumper cables in the sequence as illustrated (
O1→O2→O3→O4).
LCE2388
In case of emergency6-11

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
coolant.
For additional information on the location
of the coolant reservoir, see “Motor com-
partment check locations” (P. 8-4).
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
8-6Do-it yourself