WARNING
Failure to follow the warnings and instruc-
tions for proper use of the DCA system
could result in serious injury or death.
∙ DCA helps maintain a distance to the ve-hicle in front under certain conditions. It
is not a collision avoidance system. Fail-
ure to apply the brakes could result in an
accident.
∙ Always drive carefully and attentively when using the DCA system. Read and
understand the Owner’s Manual thor-
oughly before using the DCA system. Do
not use the DCA system except in appro-
priate road and traffic conditions.
∙ 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 standstill with a warning
chime. To prevent the vehicle from mov-
ing, the driver must depress the brake
pedal.
∙ The DCA system will not apply brake control while the driver’s foot is on the
accelerator pedal. The DCA system brakes and moves the ac-
celerator pedal upward according to the dis-
tance from and the relative speed of the ve-
hicle ahead to help assist the driver to
maintain a following distance.
DCA SYSTEM OPERATION
Always pay attention to the operation of the
vehicle and be ready to manually decelerate
to maintain the proper following distance.
The DCA system may not be able to deceler-
ate the vehicle under some circumstances.
The DCA system uses a sensor
Alocated
behind the front bumper of the vehicle to
detect vehicles traveling ahead. The sensor
generally detects the signals returned from
the vehicle ahead. Therefore, if the sensor
cannot detect the reflection from the vehicle
ahead, the DCA system may not operate.
LSD2702
DISTANCE CONTROL ASSIST (DCA)
(if so equipped)
5-98Starting and driving
WARNING
The DCA system automatically decelerates
your vehicle to help assist the driver to
maintain a following distance from the ve-
hicle ahead. Manually brake when decel-
eration is required to maintain a safe dis-
tance upon sudden braking by the vehicle
ahead or when a vehicle suddenly appears
in front of you. Always stay alert when us-
ing the DCA system.
The DCA system helps assist the driver to
keep a following distance to the vehicle
ahead by braking and moving the accelerator
pedal upward in the normal driving condition.
When a vehicle is detected ahead:
The vehicle ahead detection indicator comes
on.
When vehicle approaches a vehicle ahead: ∙ If the driver’s foot is not on the accelera- tor pedal, the system activates the brakes
to decelerate smoothly as necessary. If
the vehicle ahead comes to a stop, the
vehicle decelerates to a standstill within
the limitations of the system. ∙ If the driver’s foot is on the accelerator
pedal, the system moves the accelerator
pedal upward to assist the driver to re-
lease the accelerator pedal.
When brake operation by driver is required:
The system alerts the driver by a warning
chime and blinking the vehicle ahead detec-
tion indicator. If the driver’s foot is on the
accelerator pedal after the warning, the sys-
tem moves the accelerator pedal upward to
assist the driver to switch to the brake pedal.
The stop lights of the vehicle come on when
braking is performed by the DCA system.
When the brake operates, a noise may be
heard. This is not a malfunction.
WARNING
∙ When the vehicle ahead detection indica- tor light is not illuminated, the system
will not control or warn the driver.
∙ Depending on the position of the accel- erator pedal, the system may not be able
to assist the driver to release the accel-
erator pedal appropriately. ∙ If the vehicle ahead comes to a standstill,
the vehicle decelerates to a standstill
within the limitations of the system. The
system will release brake control with a
warning chime once it judges the vehicle
is at a standstill. To prevent the vehicle
from moving, the driver must depress the
brake pedal. (The system will resume
control automatically once the system
reaches 3 mph [5 km/h]).
Overriding the system:
The following driver’s operations override the
system operation. ∙ When the driver depresses the accelera- tor pedal even further while the system is
moving the accelerator pedal upward,
the DCA system control of the accelera-
tor pedal is canceled.
∙ When the driver’s foot is on the accelera- tor pedal, the brake control by the system
is not operated.
∙ When the driver’s foot is on the brake pedal, neither the brake control nor the
alert by the system operates.
∙ When the ICC system is set, the DCA system will be canceled.
5-100Starting and driving
HOW TO ENABLE/DISABLE THE
DCA SYSTEM
To turn on the DCA system, push the dynamic
driver assistance switch
1on the steering
wheel after starting the engine. The DCA
system switch indicator light
2in the vehicle
information display will illuminate. Push the
dynamic driver assistance switch again to
turn off the DCA system. The DCA system
switch indicator light will turn off.
The system will start to operate after the
vehicle speed becomes above approximately
3 mph (5 km/h).
The dynamic driver assistance switch is used
for the LDP, DCA and BSI systems. When the
dynamic driver assistance switch is pushed,
the LDP system will also turn on or off simul-
taneously. The DCA system can be individu-
ally set to on or off on the 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. For additional infor-
mation, refer to “Setting DCA system to
ON/OFF” in this section.
LSD2552
Starting and driving5-101
Setting DCA system to ON/OFF:
The DCA can be turned on/off in the vehicle
information display using the buttons on the
steering wheel.1. Press the
button until “Settings”
displays in the vehicle information dis-
play. Use the
button to select
“Driver Assistance.” Then press the EN-
TER button.
2. Select “Driving Aids,” and press the EN- TER button.
3. Select “Forward,” and press the ENTER button.
4. To turn on the “Assistance (DCA)” check the box using the ENTER button.
If the LDP, BSI and DCA systems are set to
off in the vehicle information display and the
dynamic driver assistance switch is pushed,
the LDW indicator, BSI ON indicator light,
and the DCA system switch indicator light
will blink for approximately 2 seconds.
For additional information on LDP and BSI,
refer to “Lane Departure Prevention (LDP)”
and “Blind Spot Intervention® (BSI)” in this
section.
DCA SYSTEM LIMITATIONS
WARNING
∙ This system is only an aid to assist the driver and is not a collision warning or
avoidance device. It is the driver’s re-
sponsibility to stay alert, drive safely and
be in control of the vehicle at all times.
∙ This system will not adapt automatically to road conditions.
∙ As there is a performance limit to the dis- tance control function, never rely solely
on the DCA system. This system does not
correct careless, inattentive or absent-
minded driving, or overcome poor visibil-
ity in rain, fog, or other bad weather. De-
celerate the vehicle speed by depressing
the brake pedal, depending on the dis-
tance to the vehicle ahead and the sur-
rounding circumstances in order to main-
tain a safe distance between vehicles.
∙ The system may not detect the vehicle in front of you in certain road or weather
conditions. To avoid accidents, never use
the DCA system under the following
conditions:
– On roads with 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 sensor area of the front bumper
– On steep downhill roads (frequent braking may result in overheating the
brakes)
– On repeated uphill and downhill roads
∙ Do not use the DCA system if you are towing a trailer. The system may not de-
tect a vehicle ahead.
∙ In some road or traffic conditions, a ve- hicle or object can unexpectedly come
into the sensor detection zone and cause
automatic braking. You may need to con-
trol the distance from other vehicles us-
ing the accelerator pedal. Always stay
alert and avoid using the DCA system
where not recommended in this warning
section.
The following are some conditions in which
the sensor cannot detect the signals: ∙ When the reflector of the vehicle ahead is covered with dirt, snow and road spray
5-102Starting and driving
∙ When dense exhaust or other smoke(black smoke) from vehicles reduces the
sensor’s detection
∙ When excessively heavy baggage is loaded in the rear seat or the luggage
room of your vehicle
The DCA system is designed to automatically
check the sensor’s operation. When the front
bumper area around the distance sensor is
covered with dirt or is obstructed, the system
will automatically cancel. If the front bumper
area of the distance sensor is covered with
ice, a transparent or translucent vinyl bag,
etc., the DCA system may not detect them. In
these instances, the vehicle-to-vehicle dis-
tance 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 front bumper area
around the distance sensor regularly.
The DCA system is designed to help assist the
driver to maintain a following distance from
the vehicle ahead. The system will decelerate
as necessary and if the vehicle ahead comes
to a stop, the vehicle decelerates to a stand-
still. However, the DCA system can only ap-
ply up to 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 ve-
hicles 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.
For additional information, refer to “Ap-
proach warning” in this section.
This system only brakes and moves the accel-
erator pedal upward to help assist the driver
to maintain a following distance from the
vehicle ahead. Acceleration should be oper-
ated by the driver.
The DCA system does not control vehicle
speed or warn you when you approach sta-
tionary and slow moving vehicles. You must
pay attention to vehicle operation to main-
tain proper distance from vehicles ahead.
Starting and driving5-103
When driving on some roads, such as wind-
ing, hilly, curved, narrow roads, or roads
which are under construction, the sensor may
detect vehicles in a different lane, or may
temporarily not detect a vehicle traveling
ahead. This may cause the system to work
inappropriately.
The detection of vehicles may also be af-
fected by vehicle operation (steering maneu-
ver or traveling position in the lane, etc.) or
vehicle condition.If this occurs, the system may warn you by
blinking the system indicator and sounding
the chime unexpectedly. You will have to
manually control the proper distance away
from the vehicle traveling ahead.
Approach warning
If your vehicle comes closer to the vehicle
ahead due to rapid deceleration of that ve-
hicle or if another vehicle cuts in, the system
warns the driver with the chime and DCA
system display. Decelerate by depressing the
brake pedal to maintain a safe vehicle dis-
tance if:
∙ The chime sounds.
∙ The vehicle ahead detection indicator blinks.
The warning chime may not sound in some
cases when there is a short distance between
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 warning chime will not sound when your
vehicle approaches vehicles that are parked
or moving slowly.
DCA Detection Zones On Winding Roads
SSD0253
Starting and driving5-105
1System set display with vehicle ahead
2System set display without vehicle ahead
Automatic cancellation
Condition A:
Under the following conditions, the DCA sys-
tem is automatically canceled. The chime will
sound and the DCA cancellation message will
display.∙ When the VDC system is turned off
∙ When the VDC or ABS operates
∙ When SNOW mode is selected by using
the Drive Mode Selector switch
Action to take:
When the conditions listed above are no lon-
ger present, turn the system off with the
dynamic driver assistance switch. Turn the
DCA system back on to use the system. Condition B:
When the sensor area of the front bumper is
dirty, making it impossible to detect a vehicle
ahead, the DCA system is automatically can-
celed.
The chime sounds and the system warning
light (orange) will come on and the “Unavail-
able: Front Radar Obstruction” indicator will
appear.
Action to take:
If the warning light comes on, park the vehicle
in a safe place, turn the engine off. Clean the
sensor area of the bumper and then perform
the settings again.
LSD2126LSD2080
Starting and driving5-107
Condition C:
When the DCA system is not operating prop-
erly, the chime sounds and the system warn-
ing light (“DCA” orange) will come on.
Action to take:
If the warning light comes on, park the vehicle
in a safe place. Turn the engine off, restart
the engine, 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 ve-
hicle is still drivable under normal conditions,
have the vehicle checked. It is recommended
that you visit an INFINITI retailer for this
service.
SYSTEM MAINTENANCE
The sensor for the DCA system is common
with ICC and is located behind the front bum-
per.
For additional information, refer to “Intelli-
gent Cruise Control (ICC)” in this section.
For USA
FCC ID: OAYARS3–B
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 interference received, including
interference that may cause undesired op-
eration.
FCC Warning
Changes or modifications not expressly ap-
proved by the party responsible for compli-
ance could void the user’s authority to oper-
ate the equipment.For Canada
IC: 4135A-ARS3B
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 interference,
including interference that may cause unde-
sired operation of the device.
Droit applicable : Canada 310
Le présent appareil est conforme aux CNR
d’Industrie Canada applicables aux appareils
radio exempts de licence. L’exploitation est
autorisée aux deux conditions suivantes: (1)
L’appareil ne doit pas produire de brouillage,
et (2) l’utilisateur de l’appareil doit accepter
tout brouillage radioélectrique subi, même si
le brouillage est susceptible d’en comprom-
ettre le fonctionnement.
DCA warning light (orange)
LSD2081
5-108Starting and driving