2018 INFINITI Q50 lane assist

5-50Starting and driving
JVS0828X
Side indicator light
Driver assist system blind spot indica-
tor (on the vehicle information display)
Dynamic driver assistance switch
Lower display
BSI SYSTEM OPERATION
The BSI system operates above approxi-
mately 37 MPH (60 km/h).
If the radar sensors detect a vehicle in the
detection zone, the side indicator light
illuminates.
If the turn signal is then activated, the
system chimes (twice) and the side indicator
light flashes. The side indicator light con-
tinues to flash until the detected vehicle
leaves the detection zone.
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. The BSI system activates to
help return the vehicle back to the center of
the driving lane. The BSI system operates
regardless of turn signal usage.
NOTE:
.BSI warning and system application will
only be activated if the side indicator
light is already illuminated when your
vehicle approaches a lane marker. If
another vehicle comes into the detection
zone after your vehicle has crossed a
lane marker, no BSI warning or system
application will be activated. (For addi-
tional information, see “BSI driving
situations” (P.5-55).)

5-52Starting and driving
JVS0829X
Driver assist system blind spot indica-
tor (green) (on the vehicle information
display)
Dynamic driver assistance switch
Lower display
TURNING THE BSI SYSTEM ON/
OFF
To turn on the BSI system, push the dynamic
driver assistance switchon the steering
wheel after starting the engine. The driver
assist system blind spot indicator (green)
in the vehicle information display will illumi-
nate.
Push the dynamic driver assistance switch
again to turn off the BSI system. The driver
assist system blind spot indicatorwill turn
off.
The dynamic driver assistance switch
is
used for Active Lane Control (if so
equipped), Blind Spot Intervention (BSI),
Lane Departure Prevention (LDP) and Dis-
tance Control Assist (DCA) systems. When
the dynamic driver assistance switch
is
pushed, Active Lane Control, LDP and DCA
systems will also turn on or off simulta-
neously. The BSI system can be individually
set to on or off on the lower display
.
If the system is set to off, the system will not
turn on even if the dynamic driver assistance
switch
is pushed to on. To set the system
to on or off on the lower display, see “How
to enable/disable the BSI system” (P.5-53).

JVS0246X
HOW TO ENABLE/DISABLE THE
BSI SYSTEM
Perform the following steps to enable or
disable the BSI system.
1. Push the MENU button
and touch
[Driver Assistance] on the lower display.
2. Touch [Blind Spot Assist].
3. Touch [Blind Spot Intervention] to en- able or disable the system.
Setting the side indicator light
brightness
The brightness of the side indicator lights
can be changed using the following steps:
1. Push the MENU button
and touch
[Driver Assistance] on the lower display.
2. Touch [Blind Spot Assist].
3. Touch [+] or [-] in [Side Indicator Bright- ness] to select [Bright], [Standard] or
[Dark].
When the brightness setting is changed, the
side indicator lights illuminate for a few
seconds.
BSI SYSTEM LIMITATIONS
WARNING
Listed below are the system limitations
for the BSI system. Failure to operate
the vehicle in accordance with these
system limitations could result in serious
injury or death.
. The BSI system cannot detect all
vehicles under all conditions.
. The radar sensors may not be able to
detect and activate BSI when certain
objects are present such as: — Pedestrians, bicycles, animals.
— Vehicles such as motorcycles, low
height vehicles, or high ground
clearance vehicles.
— Vehicles remaining in the detec- tion zone when you accelerate
from a stop.
— Oncoming vehicles.
— A vehicle merging into an adja- cent lane at a speed approxi-
mately the same as your vehicle.
— A vehicle approaching rapidly from behind.
— A vehicle which your vehicle over- takes rapidly.
— A vehicle that passes through the detection zone quickly.
. The radar sensor’s detection zone is
designed based on a standard lane
width. When driving in a wider lane,
the radar sensors may not detect
vehicles in an adjacent lane. When
driving in a narrow lane, the radar
sensors may detect vehicles driving
two lanes away.
. The radar sensors are designed to
ignore most stationary objects, how-
ever objects such as guardrails, walls,
Starting and driving5-53

5-60Starting and driving
appear in the vehicle information display.
Action to take:
When the interior temperature is reduced,
push the dynamic driver assistance switch
again to turn the BSI system back on.
SYSTEM MALFUNCTION
When the BSI system malfunctions, it will be
turned off automatically, a chime will sound,
and the system “malfunction” warning mes-
sage with the driver assist system blind spot
indicator (orange) will appear in the vehicle
information display.
Action to take:
Stop the vehicle in a safe location and place
the shift lever in the P (Park) position. Turn
the engine off and restart the engine. If the
system “malfunction” warning message with
the driver assist system blind spot indicator
(orange) continues to be displayed, have the
BSI system checked. It is recommended you
visit an INFINITI retailer for this service.
JVS1125X
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.

JVS1123X
The DCA system is intended to assist the
driver in keeping a following distance from
the vehicle ahead traveling in the same lane
and direction.
If the radar sensor
detects a slower
moving vehicle ahead, the system will reduce
the vehicle speed to help assist the driver to
maintain a following distance.
The system automatically controls the throt-
tle and applies the brakes (up to approxi-
mately 40% of vehicle braking power) if
necessary.
The detection range of the sensor is approxi-
mately 650 ft (200 m) ahead.
JVS0844X
Dynamic driver assistance switch
Driver assist system forward indicator
(green) (on the vehicle information dis-
play)
Vehicle ahead detection indicator (on
the vehicle information display)
Lower display
Starting and driving5-95

5-96Starting and driving
DCA SYSTEM OPERATION
WARNING
Failure to follow the warnings and
instructions for proper use of the DCA
system could result in serious personal
injury or death.
.When the vehicle ahead detection
indicator is not illuminated, system
will not control the vehicle or warn
the driver.
. Never place your foot under the
brake pedal. Your foot may be caught
when the system controls the brake.
. Depending on the position of the
accelerator pedal, the system may
not be able to assist the driver to
release the accelerator pedal appro-
priately.
The DCA system brakes and moves the
accelerator pedal upward according to the
distance from and the relative speed of the
vehicle ahead to help assist the driver in
maintaining a following distance. The sys-
tem will decelerate as necessary and if the
vehicle ahead comes to a stop, the vehicle
decelerates to a standstill. However, the
DCA system can only apply up to approxi- mately 40% of the vehicle’s total braking
power. If a vehicle moves into the traveling
lane ahead or if a vehicle traveling ahead
rapidly decelerates, the distance between
vehicles may become closer because the
DCA system cannot decelerate the vehicle
quickly enough. If this occurs, the DCA
system will sound a warning chime and blink
the system display to notify the driver to
take necessary action.
See “Approach warning” (P.5-98).

5-98Starting and driving
Approach warning
If your vehicle comes closer to the vehicle
ahead due to rapid deceleration of that
vehicle or if another vehicle cuts in, the
system warns the driver with the chime and
DCA system display. Decelerate by depres-
sing the brake pedal to maintain a safe
vehicle distance if:
.The chime sounds.
. The vehicle ahead detection indicator
blinks.
. The driver assist system forward indica-
tor (orange) blinks.
The warning chime may not sound in some
cases when there is a short distance be-
tween vehicles. Some examples are:
. When the vehicles are traveling at the
same speed and the distance between
vehicles is not changing
. When the vehicle ahead is traveling
faster and the distance between vehicles
is increasing
. When a vehicle cuts in near your vehicle
The driver assist system forward indicator
(orange) blinks and the warning chime will
not sound when your vehicle approaches
vehicles that are parked or moving slowly. NOTE:
The approach warning chime may sound
and the driver assist system forward in-
dicator (orange) may blink when the radar
sensor detects objects on the side of the
vehicle or on the side of the road. This may
cause the DCA system to decelerate or
accelerate the vehicle. The radar 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
vehicle condition (for example, if a vehicle is
being driven with some damage).

JVS0845X
Dynamic driver assistance switch
Driver assist system forward indicator
(green) (on the vehicle information dis-
play)
Lower display
TURNING THE DCA SYSTEM ON/
OFF
To turn on the DCA system, push the
dynamic driver assistance switchon the
steering wheel after starting the engine. The
driver assistance switch indicator
in the
vehicle information display will appear. Push
the dynamic driver assistance switch
again
to turn off the DCA system. The driver
assistance switch indicator
will turn off.
The system will start to operate after the
vehicle speed is above approximately 3 MPH
(5 km/h).
The dynamic driver assistance switch
is
used for the DCA, Active Lane Control (if so
equipped), LDP and BSI systems. When the
dynamic driver assistance switch
is
pushed, Active Lane Control, LDP and BSI
systems will also turn on or off simulta-
neously. The DCA system can be individually
set to on or off on the lower display
. If the
system is set to off, the system will not turn
on even if the dynamic driver assistance
switch
is pushed to on. To set the system
to on or off on the display, see “How to
enable/disable the DCA system” (P.5-100).
When the conventional (fixed speed) cruise
control mode is operating, the DCA system
will not operate. (To use the DCA system,
turn the conventional (fixed speed) cruise
control mode off, then push the dynamic
Starting and driving5-99