sensor NISSAN LEAF 2023 Service Manual

Action to take:
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the EV
system off and restart the EV system. If the
“Not available System Malfunction” warning
message with the BSW indicator (orange)
continues to be displayed, have the I-BSI
system checked. It is recommended you
visit a NISSAN certified LEAF dealer for this
service.
SYSTEM MAINTENANCE
The two radar sensorsO1for the I-BSI sys-
tem are located near the rear bumper. Al-
ways keep the area near the radar sensors
clean.
The radar sensors may be blocked by tem-
porary ambient conditions such as splash-
ing water, mist or fog.
The blocked condition may also be caused
by objects such as ice, frost or dirt ob-
structing the radar sensors.
Check for and remove objects obstructing
the radar sensors. Do not attach stickers (including transpar-
ent material), install accessories or apply
additional paint near the radar sensors.
Do not strike or damage the area around
the radar sensors.
It is recommended you visit a NISSAN cer-
tified LEAF dealer if the area around the
radar sensors is damaged due to a
collision.
The lane camera unit
O2for I-BSI system is
located above the inside mirror. To keep
the proper operation of I-BSI and prevent a
system malfunction, be sure to observe
the following:
• Always keep the windshield clean.
• Do not attach a sticker (including trans- parent material) or install an accessory
near the camera unit.
• Do not place reflective materials, such as white paper or a mirror, on the instru-
ment panel. The reflection of sunlight
may adversely affect the camera unit’s
capability of detecting the lane markers.
LSD3770
5-56Starting and driving

When the shif t position is in R (Reverse) and
the vehicle speed is less than approxi-
mately 5 mph (8 km/h), the RCTA system is
operational.
If the radar detects an approaching vehicle
from either side, the system chimes (once)
and the side indicator light (1) flashes on the
side the vehicle is approaching from.The RCTA system uses radar sensors
O1
installed on both sides near the rear bum-
per to detect an approaching vehicle.
The radar sensors
O1can detect an ap-
proaching vehicle from up to approxi-
mately 66 f t (20 m) away.
LSD2886LSD3768
Starting and driving5-59

RCTA SYSTEM LIMITATIONSWARNING
Listed below are the system limitations
for the RCTA system. Failure to operate
the vehicle in accordance with these
system limitations could result in seri-
ous injury or death. •
Always check surroundings and turn
to check what is behind you before
backing up. The radar sensors detect
approaching (moving) vehicles. The
radar sensors cannot detect every
object such as:
– Pedestrians, bicycles, motor-
cycles, animals or child-operated
toy vehicles
– A vehicle that is passing at speeds
greater than approximately 19
mph (30 km/h)
– A vehicle that is passing at speeds
lower than approximately 5 mph
(8 km/h)
• The radar sensors may not detect
approaching vehicles in certain
situations:
– Illustration a: When a vehicle
parked next to you obstructs the
beam of the radar sensor.
– Illustration b: When the vehicle is
parked in an angled parking
space.
– Illustration c: When the vehicle is
parked on inclined ground.
– Illustration d: When an approach-
ing vehicle turns into your vehi-
cle’s parking lot aisle.
LSD2887
Starting and driving5-61

–Illustration e: When the angle
formed by your vehicle and ap-
proaching vehicle is small.
• The following conditions may reduce
the ability of the radar to detect other
vehicles:
– Severe weather
– Road spray
– Ice/frost/snow/dirt build-up on
the vehicle
• Do not attach stickers (including
transparent material), install acces-
sories or apply additional paint near
the radar sensors. These conditions
may reduce the ability of the radar to
detect other vehicles.
• Excessive noise (e.g., audio system
volume, open vehicle window) will in-
terfere with the chime sound, and it
may not be heard.
NOTE:
In the case of several vehicles approach-
ing in a row (Illustration 1) or in the oppo-
site direction (Illustration 2), a chime may
not be sounded by the RCTA system af-
ter the first vehicle passes the sensors.
SYSTEM TEMPORARILY
UNAVAILABLE
When radar blockage is detected, the sys-
tem will be deactivated automatically.
The systems are not available until the
conditions no longer exist.
LSD2888
Illustration 1
LSD2889
Illustration 2
5-62Starting and driving

The radar sensors may be blocked by tem-
porary ambient conditions such as splash-
ing water, mist or fog.
The blocked condition may also be caused
by conditions such as ice, snow, frost or dirt
obstructing the radar sensors.
NOTE:
If the BSW system stops working, the
RCTA system will also stop working.
Action to take
When the above conditions no longer exist,
the system will resume automatically.
Malfunction
When the RCTA system malfunctions, it will
turn off automatically. The “Malfunction:
See Owner’s Manual” warning message will
appear.
NOTE:
If the BSW system stops working, the
RCTA system will also stop working.Action to take
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the EV
system off and restart the EV system. If the
system does not resume automatically,
have the system checked. It is recom-
mended that you visit a NISSAN certified
LEAF dealer for this service.
SYSTEM MAINTENANCE
The two radar sensorsO1for the BSW and
RCTA systems are located near the rear
bumper. Always keep the area near the ra-
dar sensors clean.
The radar sensors may be blocked by tem-
porary ambient conditions such as splash-
ing water, mist or fog.
The blocked condition may also be caused
by objects such as ice, frost or dirt ob-
structing the radar sensors.
Check for and remove objects obstructing
the area around the radar sensors.
LSD3768
Starting and driving5-63

Do not attach stickers (including transpar-
ent material), install accessories or apply
additional paint near the radar sensors.
Do not strike or damage the area around
the radar sensors. It is recommended that
you visit a NISSAN certified LEAF dealer if
the area around the radar sensors is dam-
aged due to a collision.
Radio frequency statement (Type
A) (if so equipped)
For USA
FCC : OAYSRR3B
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 ac-
cept any interference 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.For Canada
Applicable law: Canada 310
This device complies with Industry
Canada licence-exempt RSS standard(s).
Operation is subject to the following two
conditions: (1) This device may not cause
interference, and (2) This device must ac-
cept any interference, including interfer-
ence that may cause undesired opera-
tion of the device.
Frequency bands: 24.05–24.25GHz
Output power: less than 20 milliwatts
Radio frequency statement (Type
B) (if so equipped)
For USA
FCC : OAYSRR3B
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 ac-
cept any interference 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.
For Canada
Applicable law: Canada 310
This device contains licence-exempt
transmitter(s)/receiver(s) that comply
with Innovation, Science and Economic
Development Canada’s licence-exempt
RSS(s). Operation is subject to the fol-
lowing two conditions:
1. This device may not cause
interference.
2. This device must accept any interfer-
ence, including interference that may
cause undesired operation of the device.
Radiofrequency radiation exposure in-
formation: This equipment complies
with radiation exposure limits set forth
for an uncontrolled environment. This
equipment should be installed and oper-
ated with minimum distance of 20 cm
between the radiator and your body.
5-64Starting and driving

If the radar sensorOBdetects a slower
moving vehicle ahead, the system will re-
duce the vehicle speed so that your vehicle
follows the vehicle in front at the selected
distance.
The system automatically controls the
throttle and applies the brakes (up to ap-
proximately 40% of vehicle braking power)
if necessary.
The detection range of the sensor is ap-
proximately 650 f t (200 m) ahead.
VEHICLE-TO-VEHICLE DISTANCE
CONTROL MODE OPERATIONThe vehicle-to-vehicle distance control
mode is designed to maintain a selected
distance from the vehicle in front of you
and can reduce the speed to match a
LSD3772
5-70Starting and driving

NOTE:
The approach warning chime may sound
and the system display may blink when
the ICC sensor detects objects on the
side of the vehicle or on the side of the
road. This may cause the ICC system to
decelerate or accelerate the vehicle. The
ICC sensor may detect these objects
when the vehicle is driven on winding
roads, narrow roads, hilly roads, or when
entering or exiting a curve. In these
cases you will have to manually control
the proper distance ahead of your
vehicle.
Also, the sensor sensitivity can be affected
by vehicle operation (steering maneuver or
driving position in the lane) or traffic or ve-
hicle condition (for example, if a vehicle is
being driven with some damage).
Acceleration when passing
When the ICC system is engaged above 43
mph and following a slower vehicle (below
ICC set speed), and the turn signal is acti-
vated to the lef t, the ICC system will auto-
matically start to accelerate the vehicle to
help initiate passing on the lef t and will
begin to reduce the distance to the vehicle
directly ahead. Only the lef t side turn signal
operates this feature. As the driver steersthe vehicle and moves into the passing
lane, if no vehicle is detected ahead the ICC
system will continue to accelerate to the
ICC system set speed. If another vehicle is
detected ahead, then the vehicle will accel-
erate up to the following speed of that ve-
hicle. If the vehicle is not steered into the
lef t lane to pass, the acceleration will stop
af ter a short time and regain the set follow-
ing distance. Acceleration can be stopped
at any point by depressing the brake pedal
or the CANCEL switch on the steering
wheel.
WARNING
In order to reduce the risk of a collision
that may result in serious injury or
death, please be aware of the following:
• This function is only activated with
the lef t turn signal and will briefly ac-
celerate the vehicle even if a lane
change is not initiated. This can in-
clude non-passing situations such as
lef t side exits.
• Ensure that when passing another
vehicle, the adjacent lane is clear be-
fore initiating the pass. Sudden
changes in traffic may occur while
passing. –
Always manually steer or brake as
needed
– Never solely rely on the system
Automatic cancellation
A chime sounds under the following condi-
tions and the control is automatically
canceled:
• When the vehicle ahead is not detected
and your vehicle is traveling below the
speed of 15 mph (24 km/h)
• When the system judges the vehicle is at a standstill
• When the shif t lever is not in the D (Drive) position or B mode
• When the parking brake system is applied
• When the VDC system is turned off
• When VDC operates
• When distance measurement becomes impaired due to adhesion of dirt or ob-
struction to the sensor
• When a wheel slips
• When the radar signal is temporarily interrupted
5-78Starting and driving

VEHICLE-TO-VEHICLE DISTANCE
CONTROL MODE LIMITATIONS
WARNING
Listed below are the system limitations
for the ICC system. Failure to operate
the vehicle in accordance with these
system limitations could result in seri-
ous injury or death.
• The ICC system is primarily intended
for use on straight, dry, open roads
with light traffic. It is not advisable to
use the ICC system in city traffic or
congested areas.
• The ICC system will not adapt auto-
matically to road conditions. This
system should be used in evenly
flowing traffic. Do not use the system
on roads with sharp curves, or on icy
roads, in heavy rain or in fog. •
As there is a performance limit to the
distance control function, never rely
solely on the ICC system. This system
does not correct careless, inattentive
or absentminded driving, or over-
come poor visibility in rain, fog, or
other bad weather. Decelerate the
vehicle speed by depressing the
brake pedal, depending on the dis-
tance to the vehicle ahead and the
surrounding circumstances in order
to maintain a safe distance between
vehicles.
• If the vehicle ahead comes to a stop,
the vehicle decelerates to a standstill
within the limitations of the system.
The system will cancel once it judges
that the vehicle has come to a stand-
still and sound a warning chime. To
prevent the vehicle from moving, the
driver must depress the brake pedal.
• Always pay attention to the opera-
tion of the vehicle and be ready to
manually control the proper follow-
ing distance. The ICC system may not
be able to maintain the selected dis-
tance between vehicles (following
distance) or selected vehicle speed
under some circumstances. •
The system may not detect the ve-
hicle in front of you in certain road or
weather conditions. To avoid acci-
dents, never use the ICC system un-
der the following conditions:
– On roads where the traffic is heavy
or there are sharp curves
– On slippery road surfaces such as
on ice or snow, etc.
– During bad weather (rain, fog,
snow, etc.)
– When rain, snow or dirt adhere to
the bumper around the distance
sensor
– On steep downhill roads (the ve-
hicle may go beyond the set ve-
hicle speed and frequent braking
may result in overheating the
brakes)
– On repeated uphill and downhill
roads
– When traffic conditions make it
difficult to keep a proper distance
between vehicles because of fre-
quent acceleration or
deceleration
– Interference by other radar
sources.
Starting and driving5-79

•In some road or traffic conditions, a
vehicle or object can unexpectedly
come into the sensor detection zone
and cause automatic braking. Al-
ways stay alert and avoid using the
ICC system where not recommended
in this warning section.
The radar sensor will not detect the follow-
ing objects:
• Stationary and slow-moving vehicles
• Pedestrians or objects in the roadway
• Oncoming vehicles in the same lane
• Motorcycles traveling offset in the travel lane
The sensor generally detects the signals
returned from the vehicle ahead. Therefore,
if the sensor cannot detect the reflection
from the vehicle ahead, the ICC system
may not maintain the selected distance.
The following are some conditions in which
the sensor cannot properly detect a ve-
hicle ahead and the system may not oper-
ate properly:
• When snow or road spray from traveling vehicles reduces the sensor’s detection.
• When excessively heavy baggage is loaded in the rear seat or the cargo area
of your vehicle. The ICC system is designed to automati-
cally check the sensor’s operation within
the limitations of the system.
When the sensor is covered with dirt or is
obstructed, the system will automatically
be canceled. If the sensor is covered with
ice, a transparent or translucent vinyl bag,
etc., the ICC system may not detect them.
In these instances, the vehicle-to-vehicle
distance control mode may not cancel and
may not be able to maintain the selected
following distance from the vehicle ahead.
Be sure to check and clean the sensor
regularly.
The detection zone of the radar sensor is
limited. A vehicle ahead must be in the de-
tection zone for the vehicle-to-vehicle dis-
tance detection mode to maintain the se-
lected distance from the vehicle ahead.
A vehicle ahead may move outside of the
detection zone due to its position within
the same lane of travel. Motorcycles may
not be detected in the same lane ahead if
they are traveling offset from the center
line of the lane. A vehicle that is entering the
lane ahead may not be detected until the
vehicle has completely moved into the
lane.
If this occurs, the ICC system may warn
you by blinking the system indicator and
sounding the chime. The driver may
have to manually control the proper dis-
tance away from the vehicle traveling
ahead.
5-80Starting and driving