INFINITI QX 2011 Owners Manual

The detection zone of the sensor is limited. A
vehicle ahead must be in the detection zone for
the system to operate.
A vehicle ahead may move outside of the de-
tection zone due to its position within the same
lane of travel. Motorcycles may not be detected
in the same lane ahead if they are traveling
offset from the centerline of the lane. A vehicle
that is entering the lane ahead may not be
detected until the vehicle has completely
moved into the lane.If this occurs, the system
may warn you by blinking the system indicator
and sounding the chime. The driver may have to
manually control the proper distance away from
vehicle traveling ahead.
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When driving on some roads, such as winding,
hilly, curved, narrow roads, or roads which are
under construction, the sensor may detect ve-
hicles 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 affected
by vehicle operation (steering maneuver or trav-
eling position in the lane, etc.) or vehicle con-
dition.If this occurs, the system may warn you
by blinking the system indicator and sounding
the chime unexpectedly. You will have to manu-
ally control the proper distance away from the
vehicle traveling ahead.Distance Control Assist system
display and indicators
The display is located between the speedom-
eter and tachometer.
1. Distance Control Assist (DCA) system switch indicator:
Indicates that the dynamic driver assistance
switch is ON.
2. Vehicle ahead detection indicator:
Indicates whether it detects a vehicle in
front of you.
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3. Distance Control Assist system warninglight (orange):
The light comes on if there is a malfunction
in the DCA system.
Operating Distance Control Assist
(DCA) system
The DCA system turns on when the dynamic
driver assistance switch on the steering wheel
is pushed when “Distance Control Assist” is
enabled in the settings menu in the center
display. The DCA system switch indicator on the
dot matrix liquid crystal display will illuminate. The system will start to operate after the vehicle
speed becomes above approximately 3 MPH (5
km/h).
WARNING
When the DCA system is not necessary, be sure
to turn off the dynamic driver assistance
switch. Using the system when it is not neces-
sary may result in an accident.
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How to enable/disable the DCA system using
the settings menu :
Perform the following steps to enable or disable
the DCA system.
1. Push the SETTING1button and highlight
the “Driver Assistance” key on the display
using the multi-function controller. Then
push the ENTER
2button.
2. Highlight the “Dynamic Assistance Set- tings” key, and push the ENTER
2but-
ton.
3. Highlight the “Distance Control Assist”key, select ON or OFF and push the ENTER
2button.
For the LDP system, see “LANE DEPARTURE
WARNING (LDW)/PREVENTION (LDP) SYSTEM”
earlier in this section.
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Under the following conditions, the Distance
Control Assist system will not operate and the
Distance Control Assist (DCA) system switch
indicator will blink:
●When the SNOW mode is pushed (SNOW
mode switch) (To use the DCA system, turn
off the SNOW mode switch, then turn on the
dynamic driver assistance switch.)
For details about the SNOW mode switch,
see “SNOW MODE” later in this section. ●
When the 4WD shift switch is in the 4H or 4L
position. (To use the DCA system, place the
4WD shift switch in the AUTO position, then
turn on the dynamic driver assistance switch
(for 4WD models).
For details about the 4WD shift switch, see
“INFINITI ALL-MODE 4WD” earlier in this
section.
● 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 “VE-
HICLE DYNAMIC CONTROL (VDC) SYSTEM”
later in this section.
● When ABS or VDC (including the traction
control system) is operating
● When driving into a strong light (i.e., sun-
light) 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 “INTELLIGENT CRUISE
CONTROL (ICC) SYSTEM” earlier in this section.
When the engine is turned off, the system is
automatically turned off.
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1. System set display with vehicle ahead
2. System set display without vehicle aheadSystem operation
WARNING
The Distance Control Assist system automati-
cally decelerates your vehicle to help assist the
driver to maintain a following distance from the
vehicle ahead. Manually brake when decelera-
tion 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.
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 accelerator
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 limita-
tions 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 driver is required :
The system alerts the driver by a warning chime
and blinking the vehicle ahead detection indi-
cator. 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.
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The stoplights of the vehicle come on when brak-
ing is performed by the DCA system.
When the brake operates, a noise may be heard
or felt. This is not a malfunction.
WARNING
●When the vehicle ahead detection indicator
is not illuminated, system will not control or
warn the driver.
● Depending on the position of the accelerator
pedal, the system may not be able to assist
the driver to release the accelerator 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 mov-
ing, the driver must depress the brake pedal.
(The system will resume control automati-
cally once the system reaches 3 MPH (5
km/h). Overriding the system :
The following driver’s operation overrides the
system operation.
●
When the driver depresses the accelerator
pedal even further while the system is mov-
ing the accelerator pedal upward, the DCA
system control of the accelerator pedal is
canceled.
● When the driver’s foot is on the accelerator
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 can-
celled.
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 depressing the brake
pedal to maintain a safe vehicle distance 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 in-
creasing
● 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.
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NOTE:
The approach warning chime may sound and the
system display may blink when the sensor de-
tects some reflectors
Awhich are fitted on ve-
hicles in other lanes or on the side of the road.
This may cause the DCA system to operate inap-
propriately. The sensor may detect these reflec-
tors when the vehicle is driven on winding roads,
hilly roads or when entering or exiting a curve.
The sensor may also detect reflectors on narrow
roads or in road construction zones. 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 condi-
tion (for example, if a vehicle is being driven
with some damage).
Automatic cancellation
Condition A :
Under the following conditions, the Distance
Control Assist system is automatically can-
celed. The chime will sound and the Distance
Control Assist (DCA) system switch indicator
will blink. The system will not be able to be set.
●
When the VDC system is turned off
● When the VDC or ABS (including the traction
control system) operates
● When the SNOW mode switch is turned on.
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●When the 4WD shift switch is in the 4H or 4L
position (for 4WD models)
● When driving into a strong light (i.e., sun-
light)
Action to take :
When the conditions listed above are no longer
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 window is dirty, making it
impossible to detect a vehicle ahead, the DCA
system is automatically canceled.
The chime sounds and the system warning light
(orange) will come on and the “CLEAN SENSOR”
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 window with a soft cloth and then
perform the settings again.Condition C :
When the DCA system is not operating properly,
the chime sounds and the system warning light
(“CRUISE” 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 sys-
tem is malfunctioning. Although the vehicle is
still driveable under normal conditions, have the
vehicle checked at an INFINITI retailer.
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Sensor maintenance
How to handle the sensor :
The sensor for the DCA system is common with
Intelligent Cruise Control and is located below
the front bumper.
To handle the sensor, see “INTELLIGENT CRUISE
CONTROL (ICC) SYSTEM” earlier in this section.The Forward Collision Warning (FCW) system
will warn the driver by a warning light and
chime when your vehicle is getting close to the
vehicle ahead in the traveling lane.
The FCW system will function when your vehicle
is driven at speeds of approximately 10 MPH (15
km/h) and above.
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Vehicle ahead detection indicator
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FORWARD COLLISION WARNING (FCW)
SYSTEM (if so equipped)
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