2014 INFINITI Q50 HYBRID Owner's Manual

5-88Starting and driving
structed, making it impossible to detect a
vehicle ahead, the DCA system is auto-
matically canceled.
The chime will sound, the driver assist
system forward indicator (orange) and the
“front radar obstruction”warning message
will appear in the vehicle information
display.
Action to take:
If the driver assist system forward indicator
(orange) and the warning message appear,
park the vehicle in a safe place, turn the
hybrid system off. When the radar signal is
temporarily interrupted, clean the sensor
area of the front bumper and restart the
hybrid system. If the warning message
continues to be displayed, have the DCA
system checked by an INFINITI retailer.
Condition C:
When the DCA system is not operating
properly, the chime sounds, the driver
assist system forward indicator (orange)
and the system “malfunction” warning
message will appear in the vehicle infor-
mation display. Action to take:
If the driver assist system forward indicator
(orange) and the warning message appear,
park the vehicle in a safe place. Turn the
hybrid system off, restart the hybrid
system, and turn on the DCA system again.
If it is not possible to set the system or the
indicator stays on, it may indicate that the
system is malfunctioning. Although the
vehicle is still driveable under normal
conditions, have the vehicle checked at
an INFINITI retailer.
Sensor maintenance
The radar sensor for the DCA system is
common with the Intelligent Cruise Control
(ICC) system and is located behind the
lower grille of the front bumper.
For the radar sensor maintenance, see
“Sensor maintenance
”(P.5-74).
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and 2.
This device must accept any interfer-
ence received, including interference
that may cause undesired operation.
FCC Warning
Changes or modification not expressly
approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
For Canada:
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 accept any interfer-
ence, including interference that may
cause undesired operation of the de-
vice.

The forward emergency braking system can
assist the driver when there is a risk of a
forward collision with the vehicle ahead in
the traveling lane.
JVS0235X
The forward emergency braking system
uses a radar sensor
*Alocated behind
the lower grille of the front bumper to
measure the distance to the vehicle ahead
in the traveling lane.
The forward emergency braking system
operates at speeds above approximately
3 MPH (5 km/h). If there is a risk of a
collision, the forward emergency braking
system issues a visual and audible warn-
ing and pushes the accelerator pedal up. If
the driver releases the accelerator pedal,
then the forward emergency braking sys-
tem applies partial braking. If the driver
does not take action, the forward emer- gency braking system issues the second
visual and audible warning, and applies
harder braking.
WARNING
.
The forward emergency braking system
is a supplemental aid to the driver. It is
not a replacement for the driver’s atten-
tion to traffic conditions or responsibility
to drive safely. It cannot prevent acci-
dents due to carelessness or dangerous
driving techniques.
. The forward emergency braking system
does not function in all driving, traffic,
weather and road conditions.
Starting and driving5-89
FORWARD EMERGENCY BRAKING SYSTEM
(if so equipped)

5-90Starting and driving
JVS0312X
1. Driver assist system forward indicator
2. Vehicle ahead detection indicator
SYSTEM OPERATION
The forward emergency braking system will
function when your vehicle is driven at
speeds above approximately 3 MPH (5
km/h).
If a risk of a forward collision is detected,
the forward emergency braking system will
provide the first warning to the driver by
flashing the driver assist system forward
indicator (orange) and the vehicle ahead
detection indicator (orange), and providing
an audible warning. In addition, theforward emergency braking system pushes
the accelerator pedal up. If the driver
releases the accelerator pedal, then the
system applies partial braking.
If the driver applies the brakes quickly and
forcefully after the warning, and the
forward emergency braking system detects
that there is still the possibility of a
forward collision, the system will automa-
tically increase the braking force.
If a forward collision is imminent and the
driver does not take action, the forward
emergency braking system issues the
second visual (red) and audible warning
and automatically applies harder braking.NOTE:
The vehicle’s stop lights come on when
braking is performed by the forward
emergency braking system.
Depending on vehicle speed and distance
to the vehicle ahead, as well as driving and
roadway conditions, the system may help
the driver avoid a forward collision or may
help mitigate the consequences if a colli-
sion should one be unavoidable.
If the driver is handling the steering wheel,
accelerating or braking, the forward emer-
gency braking system will function later or
will not function.
The automatic braking will cease under the
following conditions:
.
When the steering wheel is turned as
far as necessary to avoid a collision.
. When the accelerator pedal is de-
pressed.
. When there is no longer a vehicle
detected ahead.
If the forward emergency braking system
has stopped the vehicle, the vehicle will
remain at a standstill for approximately 2
seconds before the brakes are released.

WARNING
.The radar sensor does not detect the
following objects:
—Pedestrians, animals or obstacles in
the roadway
—Oncoming vehicles
—Crossing vehicles
. The radar sensor has some performance
limitations. For stationary vehicles, the
forward emergency braking system will
not function when the vehicle is driven
at speeds over approximately 45 MPH
(70 km/h).
. The radar sensor may not detect a
vehicle ahead in the following condi-
tions:
—Dirt, ice, snow or other material
covering the radar sensor.
—Interference by other radar sources.
—Snow or road spray from traveling
vehicles.
—If the vehicle ahead is narrow (e.g.motorcycle)
—When driving on a steep downhillslope or roads with sharp curves.
. In some road or traffic conditions, the
forward emergency braking system may
unexpectedly push the accelerator pedal
up or apply partial braking. When accel-
eration is necessary, continue to depress
the accelerator pedal to override the
system.
. Braking distances increase on slippery
surfaces.
. Excessive noise will interfere with the
warning chime sound, and the chime
may not be heard.
JVS0246X
Turning the forward emergency
braking system ON/OFF
Perform the following steps to turn the
forward emergency braking system on or
off.
1. Push the MENU button
*1and touch
[Driver Assistance] on the lower dis-
play.
2. Touch [Emergency Assist].
3. Touch [Forward emergency braking] to turn the system ON/OFF.
Starting and driving5-91

5-92Starting and driving
JVS0299X
Forward emergency braking system warn-ing light (orange)
When the forward emergency braking
system is turned off, the forward emer-
gency braking system warning light (or-
ange) will illuminate.
The forward emergency braking system will
remain ON or OFF unless the setting is
changed on the lower display. This setting
is also linked with the log-in function. (See
“Log-in function” (P.3-14) and the Infiniti
InTouch Owner’ s Manual for the log-in
function.) NOTE:
When the forward emergency braking
system setting is turned ON or OFF, the
predictive forward collision warning sys-
tem is also turned ON or OFF simulta-
neously.
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
forward emergency braking system is
automatically turned off. The forward
emergency braking system warning light
(orange) and the driver assist system
forward indicator (orange) will illuminate.
Action to take:
When the above conditions no longer exist,
the forward emergency braking system will
resume automatically.
Condition B:
When the sensor area of the front bumper
is covered with dirt or is obstructed,
making it impossible to detect a vehicle
ahead, the forward emergency braking
system is automatically turned off. The
forward emergency braking system warn-ing light (orange) will illuminate and the
“front radar obstruction”
warning message
will appear in the vehicle information
display.
Action to take:
If the warning light (orange) comes on,
park the vehicle in a safe place, and turn
the hybrid system off. Clean the radar
cover on lower grille with a soft cloth, and
restart the hybrid system. If the warning
light continues to illuminate, have the
forward emergency braking system
checked by an INFINITI retailer.
Condition C:
When the accelerator pedal actuator de-
tects that the internal motor temperature is
high, the forward emergency braking sys-
tem is automatically turned off. The for-
ward emergency braking system warning
light (orange) and the driver assist system
forward indicator (orange) will illuminate
and the “Unavailable High Accelerator
Temperature” warning message will appear
in the vehicle information display.
Action to take:
When the above conditions no longer exist,
the forward emergency braking system will
resume automatically.

System malfunction
If the forward emergency braking system
malfunctions, it will be turned off auto-
matically, a chime will sound, the forward
emergency braking system warning light
(orange) and the driver assist system
forward indicator (orange) will illuminate
and the system“malfunction” warning
message will appear in the vehicle infor-
mation display.
Action to take:
If the warning light (orange) comes on,
park the vehicle in a safe location, turn the
hybrid system off and restart the hybrid
system. If the warning light continues to
illuminate, have the forward emergency
braking system checked by an INFINITI
retailer.
Sensor maintenance
For the radar sensor maintenance, see
“Sensor maintenance ”(P.5-74).
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions: 1.
This device may not cause harmful
interference, and
2. This device must accept any interfer-
ence received, including interference
that may cause undesired operation.
FCC Warning
Changes or modification not expressly
approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
For Canada:
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 accept any interfer-
ence, including interference that may
cause undesired operation of the de-
vice.
Starting and driving5-93

5-94Starting and driving
JVS0294X
The predictive forward collision warning
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 traveling same lane.
JVS0235X
JVS0225X
PREDICTIVE FORWARD COLLISION
WARNING SYSTEM (if so equipped)

1. Driver assist system forward indicator
2. Vehicle ahead detection indicator
SYSTEM OPERATION
The predictive forward collision warning
system uses a radar sensor
*Alocated
behind the front bumper to measure the
distance to a second vehicle ahead in the
traveling lane. The predictive forward colli-
sion warning system operates at speeds
above approximately 3 MPH (5 km/h). If
there is a potential risk of a forward
collision, the predictive forward collision
warning system will warn the driver by
blinking the driver assist system forward
indicator and the vehicle ahead detection
indicator, and sounding a warning tone.
JVS0295X
Precautions on the predictive for-
ward collision warning system
WARNING
. The predictive forward collision warning
system is designed to warn you before a
collision but will not avoid a collision. It
is the driver’ s responsibility to stay
alert, drive safely and be in control of
the vehicle at all times.
. The radar sensor does not detect the
following objects:
—Pedestrians, animals or obstacles in
the roadway
—Oncoming vehicles
—Crossing vehicles
. The predictive forward collision warning
system does not function when a vehicle
ahead is a narrow vehicle, such as a
motorcycle.
. The radar sensor may not detect a
second 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 travelingvehicles is splashed
—Driving in a tunnel
Starting and driving5-95