2018 INFINITI Q50 display

5-88Starting and driving
.When the INFINITI Drive Mode Selector
is turned to the SNOW mode
. When the radar signal is temporarily
interrupted
Action to take:
When the conditions listed above are no
longer present, turn the ICC system back on
to use the system.
JVS0221X
ICC system warning
Condition B:
Under the following conditions, making it
impossible to detect a vehicle ahead, the ICC
system is automatically canceled.
The chime will sound, the ICC system
warning (orange) and the “front radar ob-
struction” warning message will appear in
the vehicle information display.
. When the radar sensor area of the front
bumper is covered with dirt or is ob-
structed
Action to take:
If the warning (orange) or warning message
appears, stop the vehicle in a safe place,
place the shift lever in the P (Park) position and turn the engine off. When the radar
signal is temporarily interrupted, clean the
sensor area of the front bumper and restart
the engine. If the warning (orange) or
warning message continues to be displayed,
have the system checked. It is recommended
you visit an INFINITI retailer for this service.
.
When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snow fields, driving next
to long walls)
Action to take:
When the above conditions no longer exist,
the ICC system will resume automatically.
Condition C:
When the ICC system is not operating
properly, the chime sounds and the ICC
system warning (orange) will appear.
Action to take:
If the warning appears, stop the vehicle in a
safe place and place the shift lever in the P
(Park) position. Turn the engine off, restart
the engine, resume driving and set the ICC
system again.
If it is not possible to set the system or the
warning stays on, it may indicate that the
ICC system is malfunctioning. Although the
vehicle is still driveable under normal con-
ditions, have the vehicle checked. It is
recommended you visit an INFINITI retailer

5-90Starting and driving
CONVENTIONAL (fixed speed)
CRUISE CONTROL MODE
This mode allows driving at a speed between
25 to 90 MPH (40 to 144 km/h) without
keeping your foot on the accelerator pedal.
WARNING
.In the conventional (fixed speed)
cruise control mode, a warning chime
does not sound to warn you if you are
too close to the vehicle ahead, as
neither the presence of the vehicle
ahead nor the vehicle-to-vehicle dis-
tance is detected.
. Pay special attention to the distance
between your vehicle and the vehicle
ahead of you or a collision could
occur.
. Always confirm the setting in the ICC
system display.
. Do not use the conventional (fixed
speed) cruise control mode when
driving under the following condi-
tions:
— when it is not possible to keep the vehicle at a set speed
— in heavy traffic or in traffic that varies in speed — on winding or hilly roads
— on slippery roads (rain, snow, ice,
etc.)
— in very windy areas
. Doing so could cause a loss of vehicle
control and result in an accident.
JVS0841X
Conventional (fixed speed) cruise
control switches
1. RESUME/ACCELERATE (+) switch:
Resumes set speed or increases speed
incrementally.
2. SET/COAST (-) switch: Sets the desired cruise speed, reduces
speed incrementally.
3. CANCEL switch: Deactivates the system without erasing
the set speed.
4. MAIN switch: Master switch to activate the system.

JVS0301X
Conventional (fixed speed) cruise
control mode display and indicators
The display is located in the vehicle informa-
tion display.
1. Cruise indicator:This indicator indicates the condition of
ICC system depending on a color.
.Cruise control ON indicator (white):Indicates that the MAIN switch is ON.
.Cruise control set indicator (green):Displays while the vehicle speed is
controlled by the conventional (fixed
speed) cruise control mode of the ICC
system.
.Cruise control system warning (or-ange):
Indicates that there is a malfunction in
the ICC system.
2. Set vehicle speed indicator: This indicator indicates the set vehicle
speed.
For Canadian models, the speed is dis-
played in km/h.
JVS0842X
Operating conventional (fixed
speed) cruise control mode
To turn on the conventional (fixed speed)
cruise control mode, push and hold the
MAIN switch
for longer than about 1.5
seconds.
When pushing the MAIN switch on, the
conventional (fixed speed) cruise control
mode display and indicators are displayed
in the vehicle information display. After you
hold the MAIN switch on for longer than
about 1.5 seconds, the ICC system display
turns off. The cruise indicator appears. You
can now set your desired cruising speed.
Pushing the MAIN switch again will turn the
Starting and driving5-91

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).

JVS0244X
System set display with a vehicle ahead
System set display without a vehicle
ahead
System set display with a vehicle ahead
(brake operation is necessary)
The DCA system helps assist the driver to
keep a following distance to the vehicle
ahead by braking and moving the accelera-
tor pedal upward in the normal driving
condition.
When a vehicle ahead is detected:
The vehicle ahead detection indicator ap-
pears. When the vehicle approaches a vehicle
ahead:
.
If the driver’s foot is not on the accel-
erator pedal, the system activates the
brakes to decelerate smoothly as neces-
sary. If the vehicle ahead comes to a
stop, the vehicle decelerates to a stand-
still 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
release the accelerator pedal.
When brake operation by the 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
system moves the accelerator pedal upward
to assist the driver to switch to the brake
pedal.
NOTE:
.
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.
Overriding the system:
The following driver’s operation overrides
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 accel-
erator pedal is canceled.
. When the driver’s foot is on the accel-
erator 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 Intelligent Cruise Control (ICC)
system is set, the DCA system will be
inactive.
Starting and driving5-97

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