sensor INFINITI QX80 2019 Service Manual

5-48Starting and driving
JVS0737X
Illustration 1 - Approaching from behind
Another vehicle approaching from
behind
Illustration 1: The side indicator light illumi-
nates if a vehicle enters the detection zone
from behind in an adjacent lane.
JVS0738X
Illustration 2 - Approaching from behind
Illustration 2: If the driver activates the turn
signal then the system chimes (twice) and
the side indicator light flashes.
JVS0760X
Illustration 3 - Approaching from behind
Illustration 3: If the BSI system is on and your
vehicle approaches a lane marker while
another vehicle is in the detection zone, the
system chimes (three times) and the side
indicator light flashes. Then the BSI system
slightly applies the brakes to help return the
vehicle back to the center of the driving lane.
NOTE:
. The radar sensors may not detect vehi-
cles which are approaching rapidly from
behind.
. If the driver activates the turn signal
before a vehicle enters the detection
zone, the side indicator light will flash
but no chime will sound when the other

5-50Starting and driving
JVS0761X
Illustration 6 - Overtaking another vehicle
Illustration 6: If the BSI system is on and your
vehicle approaches a lane marker while
another vehicle is in the detection zone, the
system chimes (three times) and the side
indicator light flashes. Then, the BSI system
slightly applies the brakes on the appropriate
side to help return the vehicle back to the
center of the driving lane.
NOTE:
. When overtaking several vehicles in a
row, the vehicles after the first vehicle
may not be detected if they are travel-
ing close together.
. The radar sensors may not detect slower
moving vehicles if they are passed quickly.
. If the driver activates the turn signal
before a vehicle enters the detection
zone, the side indicator light will flash
but no chime will sound when the other
vehicle is detected.
JVS0741X
Illustration 7 - Entering from the side
Entering from the side
Illustration 7: The side indicator light illumi-
nates if a vehicle enters the detection zone
from either side.
NOTE:
The radar sensors may not detect a vehicle
which is traveling at about the same speed
as your vehicle when it enters the detection
zone.

JVS0742X
Illustration 8 - Entering from the side
Illustration 8: If the driver activates the turn
signal while another vehicle is in the detec-
tion zone, then the side indicator light
flashes and a chime will sound twice.
NOTE:
If the driver activates the turn signal before
a vehicle enters the detection zone, the side
indicator light will flash but no chime will
sound when another vehicle is detected.
JVS0761X
Illustration 9 - Entering from the side
Illustration 9: If the BSI system is on and your
vehicle approaches the lane marker while
another vehicle is in the detection zone, the
system chimes (three times) and the side
indicator light flashes. The BSI system
slightly applies the brakes on the appropriate
side to help return the vehicle back to the
center of the driving lane.
JVS0742X
Illustration 10 - Entering from the side
Illustration 10: The BSI system will not
operate if your vehicle is on a lane marker
when another vehicle enters the detection
zone. In this case only the BSW system
operates.
NOTE:
. The radar sensors may not detect a
vehicle which is traveling at about the
same speed as your vehicle when it
enters the detection zone.
. If the driver activates the turn signal
before a vehicle enters the detection
zone, the side indicator light will flash
but no chime will sound when the other
vehicle is detected.
Starting and driving5-51

JVS0687X
BSI ON indicator light (green)/BSI
system warning light (orange)
SYSTEM TEMPORARILY UNA-
VAILABLE
.Under the following conditions, a chime
will sound, the BSI ON indicator light
(green)
will blink and the BSI system
will be turned off automatically. The BSI
system will not be available until the
conditions no longer exist.
— When the VDC system (except TCS function) or ABS operates.
— When the VDC system is turned off.
Action to take:
Turn off the BSI system and turn it on again
when the above conditions no longer exist.
. Under the following conditions, the BSI
system will be turned off automatically, a
chime will sound and the BSI system
warning light (orange)
will blink. The
BSI system is not available until the
conditions no longer exist.
— When the camera detects that the interior temperature is high (over
approximately 104°F (40°C)).
— When radar blockage is detected.
The radar sensors may be blocked by
temporary ambient conditions such as
splashing water, mist or fog. The blocked
condition may also be caused by objects
such as ice, frost or dirt obstructing the radar
sensors.
Starting and driving5-53

5-54Starting and driving
Action to take:
When the above conditions no longer exist,
turn the BSI system off and turn it on again.
If the BSI system warning light (orange)
continues to blink even after the BSI system
is turned on again, stop the vehicle in a safe
location, place the shift lever in the P (Park)
position and turn the engine off. Check for
and remove objects obscuring the radar
sensors on the rear bumper, and restart the
engine.
If the BSI system warning light (orange)
continues to blink, have the BSI system
checked. It is recommended you visit an
INFINITI retailer for this service.
SYSTEM MALFUNCTION
When the BSI system malfunctions, it will be
turned off automatically, a chime will sound
and the BSI system warning light (orange)
will illuminate.
Action to take:
Stop the vehicle in a safe location, place the
shift lever in the P (Park) position, turn the
engine off and restart the engine.
If the warning light (orange) continues to
illuminate, have the BSI system checked. It is
recommended you visit an INFINITI retailer
for this service.
JVS1149X
SYSTEM MAINTENANCE
The two radar sensorsfor the BSI system
are located near the rear bumper. Always
keep the area near the radar sensors clean.
The radar sensors may be blocked by
temporary ambient conditions such as
splashing water, mist or fog.
The blocked condition may also be caused by
objects such as ice, frost or dirt obstructing
the radar sensors.
Check for and remove objects obstructing
the area around the radar sensors.
Do not attach stickers (including transparent
material), install accessories or apply addi-
tional paint near the radar sensors. Do not strike or damage the area around the
radar sensors.
It is recommended you visit an INFINITI
retailer if the area around the radar sensors
is damaged due to a collision.
The lane camera unit
for BSI system is
located above the inside mirror. To keep the
proper operation of 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.
. Do not strike or damage the areas around
the camera unit. Do not touch the
camera lens or remove the screw located
on the camera unit. It is recommended
you contact an INFINITI retailer if the
camera unit is damaged due to an
accident.
Radio frequency statement
This device complies with part 15 of the FCC
Rules and RSS-310 of Industry Canada.

Operation is subject to the following two
conditions:
1. This device may not cause harmfulinterference.
2. This device must accept any interference received, including interference that may
cause undesired operation.
Frequency of operation: 24.05GHz —
24.25GHz
Field Strength: Not greater than 2.5V/m
peak (0.25V/m average) at a distance of 3 m
The manufacturer is not responsible for any
radio or TV interference caused by un-
authorized modifications to this equipment.
Such modifications could void the user’s
authority to operate the equipment.
WARNING
Failure to follow the warnings and
instructions for proper use of the BCI
system could result in serious injury or
death.
. The BCI system is not a replacement
for proper driving procedure, is not
designed to prevent contact with
vehicles or objects and does not
provide full brake power. When back-
ing out of parking spaces, always use
the inside and rear mirrors and turn
and look in the direction you will
move. Never rely solely on the BCI
system.
. There is a limitation to the detection
capability of the radar or the sonar.
Using the BCI system under some
road, ground, traffic or weather con-
ditions could lead to improper system
operation. Always rely on your own
operation to avoid accidents.
The BCI system can help alert the driver of
an approaching vehicle or objects behind the
vehicle when the driver is backing out of a
parking space.
JVS1152X
The BCI system uses radar sensorsinstalled on both sides near the rear bumper
to detect an approaching vehicle and sonar
sensors
to detect objects in the rear.
Starting and driving5-55
BACK-UP COLLISION
INTERVENTION (BCI) (if so equipped)

5-56Starting and driving
JVS0173X
JVS0698X
The radar sensorsdetect an approaching
vehicle from up to approximately 49 ft (15
m) away. The sonar sensors
detect
stationary objects behind the vehicle up to
approximately 4.9 ft (1.5 m). Refer to the
illustration for approximate zone coverage
areas
.

5-60Starting and driving
.In the case of several vehicles approach-
ing in a row (Illustration 1) or in the
opposite direction (Illustration 2), a
chime may not be issued to the BCI
system after the first vehicle passes the
sensors.
. The sonar system chime indicating there
is an object behind the vehicle has a
higher priority than the BCI chime (single
beep) indicating an approaching vehicle.
If the sonar system detects an object
behind the vehicle and the BCI system
detects an approaching vehicle at the
same time, the following indications are
provided:
— The sonar system chime sounds
— The side indicator light on the side of the approaching vehicle flashes, and
— A yellow rectangular frame appears in the center display.
JVS0307X
If an approaching vehicle or close object
behind the vehicle is detected when your
vehicle is backing up, a red frame
will
appear in the center display and the system
will chime three times. Then, the brakes will
be applied momentarily. After the automatic
brake application, the driver must depress
the brake pedal to maintain brake pressure.
If the driver’s foot is on the accelerator
pedal, the system moves the accelerator
pedal upward before the braking is applied.
However, if you continue to accelerate, the
system will not engage the brakes.
The BCI system does not operate if the
object is very close to the bumper.
JVS0304X
JVS0182X
BCI OFF indicator

5-62Starting and driving
JVS0479X
BCI SYSTEM PRECAUTIONS
WARNING
Listed below are the system limitations
for the BCI system. Failure to operatethe vehicle in accordance with these
system limitations could result in serious
injury or death.
.
Always check your surroundings and
turn to check what is behind you
before backing up. .
The radar sensors detect approach-
ing (moving) vehicles. The radar sen-
sors cannot detect every object such
as:
— Pedestrians, bicycles, animals or child operated toy vehicles
— A vehicle that passing at speeds greater than approximately 15
MPH (24 km/h)
. The radar sensors may not detect
approaching vehicles in certain situa-
tions:
— 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.
— 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 sensors to
detect other vehicles:

— Severe weather
— Road spray
— Ice/frost/dirt build up on thevehicle
. 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
sensors to detect other vehicles.
. The sonar sensors detect stationary
objects behind the vehicle. The sonar
sensor may not detect:
— Small or moving objects
— Wedge-shaped objects
— Object close to the bumper (less than approximately 1 ft (30 cm))
— Thin objects such as rope, wire and chain, etc.
. The brake engagement by the BCI
system is not as effective on a slope
as it is on flat ground. When on a
steep slope the system may not
function properly.
. Do not use the BCI system under the
following conditions because the sys-
tem may not function properly. — When driving with a tire that is
not within normal tire conditions
(for example, tire wear, low tire
pressure, installation of spare tire,
tire chains, non-standard wheels).
— When the vehicle is equipped with non-original brake parts or sus-
pension parts.
— When towing a trailer or other vehicle.
. Excessive noise (for example, audio
system volume, open vehicle window)
will interfere with the chime sound,
and it may not be heard.
JVS0689X
Vehicle information display
SYSTEM TEMPORARILY UNA-
VAILABLE
Under the following conditions, a chime will
sound and “BCI NOT AVAILABLE” warning
message will appear in the vehicle informa-
tion display
, and the BCI system will be
turned off automatically.
. If the vehicle is parked in direct sunlight
under high temperature conditions (over
approximately 104°F (40°C)).
. When side radar blockage is detected.
Turn off the BCI system and turn it on again
when the above conditions no longer exist.
Starting and driving5-63