2014 INFINITI Q50 engine

5-56Starting and driving
PRECAUTIONS ON CRUISE CONTROL
.If the cruise control system malfunc-
tions, it will cancel automatically. The
cruise indicator (green) in the vehicle
information display will then blink to
warn the driver.
. If the engine coolant temperature be-
comes excessively high, the cruise
control system will be canceled auto-
matically.
. If the cruise indicator (green) blinks,
turn the cruise control MAIN switch off
and have the system checked by your
INFINITI retailer.
. The cruise indicator (green) may some-
times blink when the cruise control
MAIN switch is turned ON while push-
ing the SET/COAST (-), RESUME/ACCEL-
ERATE (+) or CANCEL switch. To properly
set the cruise control system, perform
the steps below in the order indicated.
WARNING
Do not use the cruise control when driving
under the following conditions:
. 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.
JVS0190X
1. RESUME/ACCELERATE (+) switch
2. SET/COAST (-) switch
3. CANCEL switch
4. MAIN (ON·OFF) switch
CRUISE CONTROL (if so equipped)

JVS0250M
.The distance to the vehicle ahead will
change according to the vehicle speed.
The higher the vehicle speed, the
longer the distance.
. If the engine is stopped, the set
distance becomes “long”. (Each time
the engine is started, the initial setting becomes
“long”.)
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 ICC system display. Decelerate by
depressing the brake pedal to maintain a
safe vehicle distance if:
.
The chime sounds.
. The vehicle ahead detection and set
distance indicator blink.
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 vehi-
cles is increasing
. When a vehicle cuts in near your vehicle
The warning chime will not sound when:
. Your vehicle approaches other vehicles
that are parked or moving slowly.
. The accelerator pedal is depressed,
overriding the system.
Starting and driving5-71

obstruction”warning message will appear
in the vehicle information display.
Action to take:
If the warning message appears, park the
vehicle in a safe place, 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
“front radar obstruction” warning message
continues to be displayed, have the ICC
system checked by an INFINITI retailer.
JVS0221X
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, park the vehicle in
a safe place. 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
conditions, have the vehicle checked at an INFINITI retailer.
Starting and driving5-73

5-78Starting and driving
.When the parking brake is applied.
. When the VDC operates (including the
traction control system)
. When a tire slips
JVS0306X
Warning
When the system is not operating properly,
the chime sounds and the color of the
cruise indicator will change to orange.
Action to take:
If the color of the cruise indicator changes
to orange, park the vehicle in a safe place.
Turn the engine off, restart the engine,
resume driving and then perform the
setting again.
If it is not possible to set 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.

.When the INFINITI Drive Mode Selector
is turned to the SNOW mode (To use the
DCA system, turn the INFINITI Drive
Mode Selector to a mode other than the
SNOW mode, then turn on the dynamic
driver assistance switch.)
For details about the INFINITI Drive
Mode Selector, see “INFINITI Drive
Mode Selector” (P.5-21).
. When the VDC system is off (To use the
DCA system, turn on the VDC, then
push the dynamic driver assistance
switch.)
For details about the VDC system, see
“Vehicle Dynamic Control (VDC) sys-
tem” (P.5-108).
. When ABS or VDC (including the trac-
tion control system) is operating
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
driver assistance switch.)
For details about the Conventional (fixed
speed) cruise control mode, see “Intelli-
gent Cruise Control (ICC) system” (P.5-58).
When the engine is turned off, the DCA
system is automatically turned off.
JVS0244X
1. System set display with a vehicle ahead
2. System set display without a vehicle ahead
3. System set display with a vehicle ahead (brake operation is necessary)
System operation
WARNING
The Distance Control Assist (DCA) system
automatically decelerates your vehicle to
help assist the driver to maintain a follow-
ing distance from the vehicle ahead. Manu- ally brake when deceleration is required to
maintain a safe distance upon sudden
braking by the vehicle ahead or when a
vehicle suddenly appears in front of you.
Always stay alert when using the DCA
system.
The Distance Control Assist (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.
Starting and driving5-85

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
engine off. When the radar signal is
temporarily interrupted, clean the sensor
area of the front bumper and restart the
engine. 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
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
vehicle is still driveable under normal
conditions, have the vehicle checked at
an INFINITI retailer.
Sensor maintenance
The 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 sensor maintenance, see
“Intelli-
gent Cruise Control (ICC) system” (P.5-58).
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.

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) and the driver assist
system forward indicator (orange) will
illuminate and the
“front radar obstruc-
tion” 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 engine off. Clean the radar cover on
lower grille with a soft cloth, and restart
the engine. 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
engine off and restart the engine. 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
“Intelligent Cruise Control (ICC) system”
(P.5-58). 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