2023 NISSAN LEAF sensor

FCC Notice
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s author-
ity to operate the equipment.WARNING
Failure to follow the warnings and in-
structions for proper use of the I-FCW
system could result in serious injury or
death.
• The I-FCW system can help warn the
driver before a collision occurs but
will not avoid a collision. It is the driv-
er’s responsibility to stay alert, drive
safely and be in control of the vehicle
at all times.
The I-FCW system can help alert the driver
when there is a sudden braking of a second
vehicle traveling in front of the vehicle
ahead in the same lane. The I-FCW system uses a radar sensor
OA
located on the front of the vehicle to mea-
sure distance to the vehicle ahead in the
same lane.
LSD2859
INTELLIGENT FORWARD COLLISION
WARNING (I-FCW)
Starting and driving5-141

WARNING
Listed below are the system limitations
for the I-FCW system. Failure to operate
the vehicle in accordance with these
system limitations could result in seri-
ous injury or death.
• The I-FCW system cannot detect all
vehicles under all conditions.
• The radar sensor does not detect the
following objects:
– Pedestrians, animals or obstacles
in the roadway.
– Oncoming vehicles. –
Crossing vehicles.
• (Illustration A) The I-FCW system
does not function when a vehicle
ahead is a narrow vehicle, such as a
motorcycle.
• The radar sensor may not detect a
vehicle ahead in the following
conditions:
– Snow or heavy rain.
– Dirt, ice, snow or other material
covering the radar sensor.
– Interference by other radar
sources. –
Snow or road spray from traveling
vehicles.
– Driving in a tunnel.
– (Illustration B) When the vehicle
ahead is being towed.
– (Illustration C) When the distance
to the vehicle ahead is too close,
the beam of the radar sensor is
obstructed.
– (Illustration D) When driving on a
steep downhill slope or roads with
sharp curves.
LSD3474
5-146Starting and driving

•The system is designed to automati-
cally check the sensor’s functionality,
within certain limitations. The sys-
tem may not detect some forms of
obstruction of the sensor area such
as ice, snow, stickers, etc. In these
cases, the system may not be able to
warn the driver properly. Be sure that
you check, clean and clear the sensor
area regularly.
• Excessive noise will interfere with the
warning chime sound, and the chime
may not be heard.
Starting and driving5-147

SYSTEM TEMPORARILY
UNAVAILABLE
Condition A
When the radar sensor picks up interfer-
ence from another radar source, making it
impossible to detect a vehicle ahead, the
I-FCW system is automatically turned off.
The AEB with Pedestrian Detection system
warning light (orange) will illuminate.
Action to take
When the above conditions no longer exist,
the I-FCW system will resume automatically.
Condition B
When there is inclement weather (rain, fog,
snow, etc.) blocking the front radar sensor,
the I-FCW system will automatically be
canceled, the chime will sound and the
"Forward Driving Aids Temporarily Disabled
Front Sensor Blocked See Owner’s Manual"
warning message will appear in the vehicle
information display.
Action to take:
When the conditions listed above are no
longer present, the warning message will
no longer be available in the vehicle infor-
mation display. If the "Forward Driving Aids
Temporarily Disabled Front Sensor Blocked
See Owner’s Manual" warning message
continues to be displayed, have the system
checked. It is recommended that you visit a
NISSAN dealer for this service.
LSD4663
5-150Starting and driving

Condition C
When the radar sensor of the front bumper
is covered with dirt or is obstructed, the
I-FCW system will automatically be can-
celed. The chime will sound and the "For-
ward Driving Aids Temporarily Disabled
Front Sensor Blocked See Owner’s Manual"
warning message will appear in the vehicle
information display.
Action to take:
If the warning message appears, stop the
vehicle in a safe place, push the P (Park)
position switch on the shif t lever, and turn
the EV system off. When the radar signal is
temporarily interrupted, clean the sensor
area of the front bumper and restart the EV
system. If the "Forward Driving Aids Tem-
porarily Disabled Front Sensor Blocked See
Owner’s Manual" warning message con-
tinues to be displayed, have the system
checked. It is recommended that you visit a
NISSAN dealer for this service.Condition D
When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snowfields, driving next to
long walls), the system may illuminate the
system warning light and display the "For-
ward Driving Aids Temporarily Disabled
Front Sensor Blocked See Owner’s Manual"
warning message.
Action to take:
When the above driving conditions no lon-
ger exist, turn the system back on.
NOTE:
If the AEB with Pedestrian Detection sys-
tem stops working, the I-FCW system will
also stop working.SYSTEM MALFUNCTION
If the I-FCW system malfunctions, it will be
turned off automatically, a chime will
sound, the AEB with Pedestrian Detection
system warning light (orange) will illumi-
nate and the warning message “Malfunc-
tion: See Owner’s Manual” will appear in the
vehicle information display.
LSD3956
Starting and driving5-151

Action to take:
If the warning light (orange) comes on, stop
the vehicle in a safe location, turn the EV
system off and restart the EV system. If the
warning light continues to illuminate, have
the AEB with Pedestrian Detection system
checked. It is recommended that you visit a
NISSAN certified LEAF dealer for this service
SYSTEM MAINTENANCE
The sensorOAis located on the front of the
vehicle.
To keep the system operating properly, be
sure to observe the following:
• Always keep the sensor area of the front bumper/emblem clean.
• Do not strike or damage the areas around the sensor.
• Do not cover or attach stickers or similar objects on the front bumper near the
sensor area. This could cause failure or
malfunction. • Do not attach metallic objects near the
sensor area (brush guard, etc.). This could
cause failure or malfunction.
• Do not alter, remove or paint the front bumper. Before customizing or restoring
the front bumper, it is recommended that
you visit a NISSAN certified LEAF dealer.
Radio frequency statement
For USA
FCC ID OAYARS4B
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 in-
terference, and
2. This device must accept any interfer-
ence received, including interference
that may cause undesired operation.
FCC Warning
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s author-
ity to operate the equipment.
LSD2859
5-152Starting and driving

Self-test feature
The Anti-lock Braking System (ABS) in-
cludes electronic sensors, electric pumps,
hydraulic solenoids and a computer. The
computer has a built-in diagnostic feature
that tests the system each time you place
the power switch in the READY to drive po-
sition and move the vehicle at a low speed
in forward or reverse. When the self-test
occurs, you may hear a “clunk” noise
and/or feel a pulsation in the brake pedal.
This is normal and does not indicate a mal-
function. If the computer senses a mal-
function, it switches the ABS off and illumi-
nates the ABS warning light on the
instrument panel. The brake system then
operates normally, but without anti-lock
assistance.
If the ABS warning light illuminates during
the self-test or while driving, have the ve-
hicle checked. It is recommended that you
visit a NISSAN certified LEAF dealer for this
service.
Normal operation
The Anti-lock Braking System (ABS) oper-
ates at speeds above 3 to 6 mph (5 to 10
km/h). The speed varies according to road
conditions.When the ABS senses that one or more
wheels are close to locking up, the actuator
rapidly applies and releases hydraulic pres-
sure. This action is similar to pumping the
brakes very quickly. You may feel a pulsa-
tion in the brake pedal and hear a noise
from under the hood or feel a vibration
from the actuator when it is operating. This
is normal and indicates that the ABS is op-
erating properly. However, the pulsation
may indicate that road conditions are haz-
ardous and extra care is required while
driving.
BRAKE ASSIST
When the force applied to the brake pedal
exceeds a certain level, the Brake Assist is
activated generating greater braking force
than a conventional brake booster even
with light pedal force.
WARNING
The Brake Assist is only an aid to assist
braking operation and is not a collision
warning or avoidance device. It is the
drivers responsibility to stay alert, drive
safely and be in control of the vehicle at
all times. The VDC system uses various sensors to
monitor driver inputs and vehicle motion.
Under certain driving conditions, the VDC
system helps to perform the following
functions.
• Controls brake pressure to reduce wheel
slip on one slipping drive wheel so power
is transferred to a drive wheel on the
same axle that is not slipping.
• Controls brake pressure and traction motor output to reduce drive wheel slip
based on vehicle speed (traction control
function).
• Controls brake pressure at individual wheels and traction motor output to help
the driver maintain control of the vehicle
in the following conditions:– Understeer (vehicle tends to not follow the steered path despite increased
steering input).
– Oversteer (vehicle tends to spin due to certain road or driving conditions).
The VDC system can help the driver main-
tain control of the vehicle, but it cannot
prevent loss of vehicle control in all driving
situations.
VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM
5-164Starting and driving

•The system may not detect the fol-
lowing objects: fluff y objects such as
snow, cloth, cotton, glass, wool, etc.,
and thin objects such as rope, wire
and chain, etc., or wedge-shaped
objects.
If your vehicle sustains damage to the rear
bumper fascia, leaving it misaligned or
bent, the sensing zone may be altered
causing inaccurate measurement of ob-
stacles or false alarms.
CAUTION
• Excessive noise (such as audio sys-
tem volume or an open vehicle win-
dow) will interfere with the tone and
it may not be heard.
• Keep the sonar sensors (located on
the bumper fascia) free from snow,
ice and large accumulations of dirt.
Do not clean the sensors with sharp
objects. If the sensors are covered,
the accuracy of the sonar function
will be diminished.
SYSTEM OPERATION
The system informs with a visual and au-
dible alert of rear obstacles when the shif t
lever is in the R (Reverse) position. Sonar Operation Table
RR Sensor
Range Sound Display Px †
Roo
Nx † Dx †
o – Display/Beep when detect
† – Display on camera view
x – No Display and Beep
The system is deactivated at speeds above
6 mph (10 km/h). It is reactivated at lower
speeds.
The intermittent tone will stop af ter 3 sec-
onds when an obstacle is detected by only
the corner sensor and the distance does
not change. The tone will stop if the ob-
stacle moves away from the vehicle or if
the vehicle moves away from the obstacle.
When the object is detected, the indicator
(green) appears and blinks and the tone
sounds intermittently. When the vehicle
moves closer to the object, the color of the
indicator turns yellow and the rate of the
blinking increases. When the vehicle is very
close to the object, the indicator stops
blinking and turns red, and the tone
sounds continuously. When the corner of the vehicle moves
closer to an object, the corner sonar indi-
cator
OAappears. When the center of the
vehicle moves close to an object, the cen-
ter sonar indicator
OBappears
LSD3773
5-170Starting and driving