2021 NISSAN LEAF check engine

• When it is cold, use the steering wheelheater in substitution for the heater/air
conditioner. The steering wheel heater
consumes less power than the heater/
air conditioner.
• 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 is released,
the regenerative brake system pro-
vides some deceleration and some
power to the Li-ion battery.
LI-ION BATTERY LIFE
The Li-ion battery's ability to hold a charge,
like all batteries, decreases with battery
age and usage which results in decreased
vehicle range when compared to the ve-
hicle range when the vehicle was new. This
is normal and expected, and does not indi-
cate a malfunction of the vehicle or Li-ion
battery. The Li-ion battery's ability to hold a charge
can be affected by how you drive the ve-
hicle, store the vehicle, how you charge the
Li-ion battery and Li-ion battery tempera-
ture during vehicle operation and charging.
To maximize the battery's useful life, use
the following driving and charging habits
where possible:
• Avoid exposing a vehicle to extreme am-
bient temperatures for extended periods.
•
Avoid storing a vehicle in temperatures be-
low −13°F (−25°C) for more than seven days.
• Avoid leaving your vehicle for more than 14 days where the Li-ion battery available
charge gauge reaches a zero or near zero
(state of charge).
• Allow the vehicle and Li-ion battery to cool down af ter use before charging.
• Park/store your vehicle in cool locations out of direct sunlight and away from heat
sources.
• Avoid sustained high battery tempera- tures (caused, for example, by exposure
to very high ambient temperatures or ex-
tending highway driving with multiple
quick charges [if so equipped]).
• Use the normal charging or trickle charg- ing methods to charge the Li-ion battery
and minimize the use of public Fast
Charge or Quick Charger. • Moderate driving.
• Use of ECO mode.
• Do not operate the charging timer re-
peatedly while the charge connector is
connected to the vehicle af ter the Li-ion
battery charging is completed. Doing so
may discharge the 12-volt battery.
• The power of the Li-ion battery can be checked on the Li-ion battery available
charge gauge. For additional information,
see “Li-ion battery available charge
gauge” (P. 2-9).LI-ION BATTERY MAINTENANCE
In addition to the regular maintenance rec-
ommended by NISSAN, the LEAF requires
some special Li-ion battery inspections.
• For additional information, refer to theNISSAN Warranty Information Booklet for
significant limitations, exclusions and
possible voiding of your warranty result-
ing from failure to have these necessary
inspections, repairs and/or adjustments
performed.
• For a detailed explanation of the Li-ion battery inspection and intervals, see
“Maintenance and schedules”.
EV OverviewEV-23

1. Securely close the charge port lid.
2. Pull the hood lock release handle
O1lo-
cated below the driver’s side instrument
panel until the hood springs up slightly.
3. Locate the lever
O2between the hood
and the charge port lid, and push the
lever upward with your fingertips.
4. Raise the hood
O3.
5. Remove the support rod
O4from under
the hood and insert it into the slot
O5. Hold the coated parts when removing or
resetting the support rod
OA. Avoid di-
rect contact with the metal parts, as they
may be hot immediately af ter the engine
has been stopped.
When closing the hood, return the support
rod to its original position, lower the hood
to approximately 8 in (20 cm) above the
latch and release it. This allows proper en-
gagement of the hood latch.
WARNING
• Make sure the hood is completely
closed and latched before driving.
Failure to do so could cause the hood
to fly open and result in an accident.
• If you see steam or smoke coming
from the engine compartment, to
avoid injury do not open the hood.
LPD2691
HOOD
3-18Pre-driving checks and adjustments

WARNING
• If the READY to drive indicator light is
off while driving, the power assist for
the steering will not work. Steering
will be harder to operate.
• When the power steering warning
light illuminates while the READY to
drive indicator light is on, the power
assist for the steering will cease op-
eration. You will still have control of
the vehicle but the steering will be
harder to operate.
The power steering system is designed to
provide power assistance while driving to
operate the steering wheel with less effort.
When the steering wheel is operated re-
peatedly or continuously while parking or
driving at a very low speed, the power as-
sist for the steering wheel will be reduced.
This is to prevent overheating of the power
steering system and help protect it from
getting damaged. When the power assis-
tance is reduced, steering wheel operation
will become harder. When the temperature
of the power steering system goes down,
the power assistance level will return to
normal. Avoid repeating such steering
wheel operations that could cause the
power steering system to overheat. You may hear a noise when the steering
wheel is operated quickly. However, this is
not a malfunction.
If the power steering warning light
illuminates while the READY to drive indica-
tor light is on, it may indicate the power
steering system is not functioning properly
and may need servicing. Have the power
steering system checked. It is recom-
mended that you visit a NISSAN certified
LEAF dealer for this service. For additional
information, see “Power steering warning
light” (P. 2-23).
The power assist for steering stops operat-
ing when both the power steering warning
light and READY to drive indicator light are
illuminated. You will still have control of the
vehicle. However, greater steering effort is
needed, especially in sharp turns and at
low speeds.
BRAKE PRECAUTIONS
This vehicle is equipped with two braking
systems:
1. Hydraulic brake system
2. Regenerative brake system
Hydraulic brake system
The hydraulic brake system is similar to the
brakes used on conventional vehicles.
The brake system has two separate hy-
draulic circuits. If one circuit malfunctions,
you will still have braking at two wheels.
Regenerative brake system
The primary purpose of the regenerative
brake system is to provide some power to
help recharge the Li-ion battery and ex-
tend driving range. A secondary benefit is
“engine braking” that operates based on
battery conditions.
In the D (Drive) range, when the accelerator
is released, the regenerative brake system
provides some deceleration and gener-
ates power for the Li-ion battery. Power is
also generated when the brake pedal is
applied.
POWER STEERING SYSTEM
BRAKE SYSTEM
5-156Starting and driving