Infiniti QX50 (2021 year). Manual in english — page 22

closer because the DCA system cannot de-
celerate 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 addi-
tional information, see “Approach warning”
(P. 5-110).

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 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 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.

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 operations override 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.

LSD2991

Starting and driving

5-109

• 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 sys-

tem will be canceled.

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.

NOTE:

The approach warning chime may sound and
the system display may blink when the radar
sensor detects objects on the side of the
road. This may cause the DCA system to de-
celerate 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 manu-
ally control the proper distance ahead of
your vehicle.

Also, the sensor sensitivity can be affected by
vehicle operation (steering maneuver or driv-
ing position in the lane) or traffic or vehicle
condition (for example, if a vehicle is being
driven with some damage).

5-110

Starting and driving

HOW TO ENABLE/DISABLE THE

DCA SYSTEM

To turn on the DCA system, push the ProPI-
LOT Assist switch on the steering wheel after
starting the engine. The DCA ON indicator in
the vehicle information display will illuminate.

Push the ProPILOT Assist switch on the steer-
ing wheel again to turn off the DCA system.
The DCA ON indicator will turn off.

The system will start to operate after the
vehicle speed becomes above approximately
3 mph (5 km/h).

The ProPILOT Assist switch on the steering
wheel is used for the LDP, DCA and BSI
systems. When the ProPILOT Assist switch
on the steering wheel is pushed, the LDP
system will also turn on or off simultaneously.
The DCA system can be individually set to on
or off on the display. If the system is set to
off, the system will not turn on even if the
ProPILOT Assist switch on the steering
wheel is pushed to on. For additional infor-
mation, refer to “Setting DCA system to ON/
OFF” in this section.

Setting DCA system to ON/OFF:

The DCA can be turned on/off in the lower
display.

1. Press the MENU button below the lower

display screen.

2. Select “Driver Assistance.”

3. Select “Forward Assist.”

4. Select “ON” to turn the “Distance Control”

system on or off.

LSD3937

Starting and driving

5-111

If the LDP, BSI and DCA systems are set to
off in the lower display and the ProPILOT
Assist switch on the steering wheel is pushed,
the LDP ON indicator, BSI ON indicator, and
the DCA ON indicator will blink for approxi-
mately 2 seconds.

For additional information on LDP and BSI,
see “Lane Departure Prevention (LDP)”
(P. 5-40) and “Blind Spot Intervention® (BSI)”
(P. 5-54).

DCA system display and indicators

The display is located between the speedom-
eter and tachometer.
• Vehicle ahead detection indicator (green):

Indicates when a vehicle is detected ahead.
• Vehicle ahead detection indicator (orange):

The indicator comes on if there is a malfunc-
tion in the DCA system.

DCA SYSTEM LIMITATIONS

WARNING

Listed below are the system limitations of
the DCA system. Failure to operate the ve-
hicle in accordance with these system limi-
tations could result in serious injury or
death.

•

This system will not adapt automatically
to road conditions. Do not use the sys-
tem on roads with sharp curves, or on icy
roads, in heavy rain or in fog.

•

The DCA system will not apply brake
control while the driver’s foot is on the
accelerator pedal.

•

As there is a performance limit to the
distance control function, never rely
solely on the DCA system. This system
does not correct careless, inattentive or
absent-minded driving, or overcome
poor visibility in rain, fog, or other bad
weather. Decelerate the vehicle speed by
depressing the brake pedal, depending
on the distance to the vehicle ahead and
the surrounding circumstances in order
to maintain a safe distance between
vehicles.

LSD3579

5-112

Starting and driving

•

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 where the traffic is heavy or

there are sharp curves

–

On slippery road surfaces such as on

ice or snow, etc.

–

On off-road surfaces such as on sand

or rock, 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

–

When traffic conditions make it diffi-

cult to keep a proper distance be-
tween vehicles because of frequent
acceleration or deceleration

–

When towing a trailer or other vehicle

–

Interference by other radar sources

•

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
control the distance from other vehicles
using the accelerator pedal. Always stay
alert and avoid using the DCA system
when it is not recommended in this
section.

The radar sensor will not detect the following
objects:
• Stationary and slow moving vehicles
• Pedestrians or objects in the roadway
• Oncoming vehicles in the same lane
• Motorcycles traveling offset in the travel

lane

The following are some conditions in which
the sensor cannot detect the signals:
• When the snow or road spray from travel-

ing vehicles reduces the sensor’s visibility

• When excessively heavy baggage is loaded

in the rear seat or the luggage room of your
vehicle

Starting and driving

5-113

DCA DRIVING SITUATIONS

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
detection 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 center line 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 oc-

curs, the system may warn you by blinking
the system indicator and sounding the

chime. The driver may have to manually con-
trol the proper distance away from the ve-
hicle traveling ahead.

SSD0252

DCA Detection Zone

5-114

Starting and driving

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 indica-
tor and sounding the chime unexpectedly.
You will have to manually control the proper
distance away from the vehicle traveling
ahead.

SYSTEM TEMPORARILY
UNAVAILABLE

Condition A:

Under the following conditions, the DCA sys-
tem is automatically canceled. The chime will
sound and the DCA system switch indicator
will blink. The system will not be able to be
set.
• When the VDC system is off (To use the

DCA system, turn on the VDC, then push
the ProPILOT Assist switch on the steering
wheel.)

SSD0253

DCA Detection Zones On Winding Roads

LSD3203

Starting and driving

5-115

For additional information about the VDC
system, see “Vehicle Dynamic Control
(VDC) system” (P. 5-154).

• When ABS or VDC (including the TCS) is

operating

• When the radar signal is temporarily

interrupted

Action to take:

When the conditions listed above are no lon-
ger present, turn the system off with ProPI-
LOT Assist switch on the steering wheel.
Turn the DCA system back on to use the
system.

Condition B:

When the radar sensor area is covered with
dirt or is obstructed, making it impossible to
detect a vehicle ahead, the DCA system is
automatically canceled.

The chime sounds and the DCA system
warning light (orange) will come on and the
“Unavailable: Front Radar Blocked” warning
will appear.

Action to take:

If the warning light comes on, park the vehicle
in a safe place, press the park button to place
the vehicle in the P (Park) position and turn
the engine off. When the radar signal is tem-

porarily interrupted, clean the sensor area
and restart the engine. If the “Unavailable:
Front Radar Blocked” warning continues to
be displayed, have the DCA system checked.
It is recommended you visit and 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) the system may illuminate the sys-
tem warning light (orange) and display the
“Unavailable Front Radar Blocked” message.

Action to take:

When the above conditions no longer exist,
the DCA system will resume automatically.

Condition C:

When the DCA system is not operating prop-
erly, the chime sounds, the DCA system
warning light (orange) and the system “Mal-
function” warning message will appear in the
vehicle information display.

Action to take:

If the DCA system warning light (orange) and
the warning message appear, stop the ve-
hicle in a safe place and place the vehicle in
the P (Park) position. Turn the engine off,
restart the engine, and turn on the DCA sys-
tem again.

LSD2992

5-116

Starting and driving

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
bumper.

For additional information, see “Intelligent
Cruise Control (ICC) (for vehicles with ProPI-
LOT Assist)” (P. 5-87).

For USA/Canada

Model: ARS4–A

IC: 4135A-ARS4A

FCC ID: OAYARS4A

This device complies with Part 15 of the FCC
Rules and with Industry Canada licence-
exempt RSS standard(s). Operation is subject
to the following two conditions: (1) This de-
vice may not cause interference, and (2) this
device must accept any interference, includ-
ing interference that may cause undesired
operation of the device.

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.

Radio

Frequency

Radiation

Exposure

Information:

This equipment complies with FCC and IC
radiation exposure limits set forth for an un-
controlled environment.

This equipment should be installed and oper-
ated with minimum distance of 30 cm be-
tween the radiator and your body.

This transmitter must not be co-located or
operating in conjunction with any other an-
tenna or transmitter.

Cet équipment est conforme aux limites
d’exposition aux rayonnements IC établies
pour un environnement non contrôlé. Cet
équipment doit étre installé et utilisé avec un
minimum de 30 cm de distance entre la
source de rayonnement et votre corps.

FCC Notice

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.

Starting and driving

5-117

WARNING

Failure to follow the warnings and instruc-
tions for proper use of the RAB system
could result in serious injury or death.

•

The RAB system is a supplemental aid to
the driver. It is not a replacement for
proper driving procedures. Always use
the side and rear mirrors and turn and
look in the direction you will move before
and while backing up. Never rely solely
on the RAB system. It is the driver’s re-
sponsibility to stay alert, drive safely,
and be in control of the vehicle at all
times.

•

Inclement weather or ultrasonic sources
such as an automatic car wash, a truck’s
compressed-air brakes or a pneumatic
drill may affect the function of the sys-
tem; this may include reduced perfor-
mance or a false activation.

•

There is a limitation to the RAB system
capability. The RAB system is not effec-
tive in all situations.

The RAB system can assist the driver when
the vehicle is backing up and approaching
objects directly behind the vehicle.

The RAB system detects obstacles behind
the vehicle using the parking sensors

O

1

lo-

cated on the rear bumper.

NOTE:

You can temporarily cancel the sonar func-
tion in the vehicle, but the RAB system will
continue to operate. For additional informa-
tion, see “Front and rear sonar system”
(P. 5-160).

LSD3559

REAR AUTOMATIC BRAKING (RAB)

5-118

Starting and driving

RAB SYSTEM OPERATION

䊊

1

RAB system warning light and RAB sys-
tem warning indicator

䊊

2

Lower display buttons

䊊

3

Center display (if so equipped)

When the shift lever is in the R (Reverse)
position and the vehicle speed is less than
approximately 9 mph (15 km/h), the RAB
system operates.

If a risk of a collision with an obstacle is
detected when your vehicle is backing up, the
RAB system warning indicator will flash in the
vehicle information display, a red frame will
appear in the center display (for vehicles with
the Around View® Monitor system), and the
system will chime three times. The system will
then automatically apply the brakes. After
the automatic brake application, the driver
must depress the brake pedal to maintain
brake pressure.

NOTE:
• The brake lights of the vehicle come on

when braking is performed by the RAB
system.

• When the brakes operate, a noise may be

heard. This is not a malfunction.

LSD3561

Starting and driving

5-119

TURNING THE RAB SYSTEM

ON/OFF

Perform the following steps to turn the RAB
system ON or OFF.

1. Press the MENU button below the lower

display screen.

2. Select “Driver Assistance.”

3. Select “Emergency Assist.”

4. Select “ON” to turn the “Backward” sys-

tem on or off.

When the RAB system is turned off, the RAB
system warning light illuminates.

NOTE:

The RAB system will be automatically
turned on when the engine is restarted.

RAB SYSTEM LIMITATIONS

WARNING

Listed below are the system limitations for
the RAB system. Failure to follow the
warnings and instructions for proper use of
the RAB system could result in serious in-
jury or death.

LSD3610

5-120

Starting and driving

•

When the vehicle approaches an ob-
stacle while the accelerator or brake
pedal is depressed, the function may not
operate or the start of operation may be
delayed. The RAB system may not oper-
ate or may not perform sufficiently due
to vehicle conditions, driving conditions,
the traffic environment, the weather,
road surface conditions, etc. Do not wait
for the system to operate. Operate the
brake pedal by yourself as soon as
necessary.

•

If it is necessary to override RAB opera-
tion, strongly press the accelerator
pedal.

•

Always check your surroundings and
turn to check what is behind you before
and while backing up. The RAB system
detects stationary objects behind the
vehicle. The RAB system does not detect
the following objects:

–

Moving objects

–

Low objects

–

Narrow objects

–

Wedge-shaped objects

–

Objects close to the bumper (less than

approximately 1 ft [30 cm])

–

Objects that suddenly appear

–

Thin objects such as rope, wire, chain,

etc.

•

The RAB system may not operate for the
following obstacles:

–

Obstacles located high off the ground

–

Obstacles in a position offset from

your vehicle

–

Obstacles, such as spongy materials

or snow, that have soft outer sur-
faces and can easily absorb a sound
wave

•

The RAB system may not operate in the
following conditions:

–

There is rain, snow, ice, dirt, etc., at-

tached to the sonar sensors.

–

A loud sound is heard in the area

around the vehicle.

–

The surface of the obstacle is diago-

nal to the rear of the vehicle.

•

The RAB system may unintentionally op-
erate in the following conditions:

–

There is overgrown grass in the area

around the vehicle.

–

There is a structure (e.g., a wall, toll

gate equipment, a narrow tunnel, a
parking lot gate) near the side of the
vehicle.

–

There are bumps, protrusions, or

manhole covers on the road surface.

–

The vehicle drives through a draped

flag or a curtain.

–

There is an accumulation of snow or

ice behind the vehicle.

–

An ultrasonic wave source, such as

another vehicle’s sonar, is near the
vehicle.

•

Once the automatic brake control oper-
ates, it does not operate again if the ve-
hicle approaches the same obstacle.

•

The automatic brake control can only
operate for a short period of time. There-
fore, the driver must depress the brake
pedal.

•

In the following situations, the RAB sys-
tem may not operate properly or may not
function sufficiently:

–

The vehicle is driven in bad weather

(rain, fog, snow, etc.).

–

The vehicle is driven on a steep hill.

–

The vehicle’s posture is changed (e.g.,

when driving over a bump).

–

The vehicle is driven on a slippery

road.

–

The vehicle is turned sharply by turn-

ing the steering wheel fully.

Starting and driving

5-121

–

Snow chains are used.

–

Wheels or tires other than INFINITI

recommended are used.

–

The brakes are cold at low ambient

temperatures or immediately after
driving has started.

–

The braking force becomes poor due

to wet brakes after driving through a
puddle or washing the vehicle.

•

Turn the RAB system off in the following
conditions to prevent the occurrence of
an unexpected accident resulting from
sudden system operation:

–

The vehicle is towed.

–

The vehicle is carried on a flatbed

truck.

–

The

vehicle

is

on

the

chassis

dynamometer.

–

The vehicle drives on an uneven road

surface.

–

Suspension parts other than those

designated

as

Genuine

INFINITI

parts are used. (If the vehicle height
or the vehicle body inclination is
changed, the system may not detect
an obstacle correctly.)

–

The vehicle is towing an object (if so

equipped).

•

Excessive noise (e.g., audio system vol-
ume, an open vehicle window) will inter-
fere with the chime sound, and it may not
be heard.

SYSTEM MALFUNCTION

If the RAB system malfunctions, it will be
turned off automatically, the RAB system
warning light will illuminate, and the “System
fault” warning message will appear in the
vehicle information display.

Action to take

If the warning light illuminates, park the ve-
hicle in a safe location, turn the engine off,
and restart the engine. If the warning light
continues to illuminate, have the RAB system
checked. It is recommended that you visit an
INFINITI retailer for this service.

NOTE:

If the RAB system cannot be operated tem-
porarily, the RAB system warning light
blinks.

SYSTEM MAINTENANCE

Observe the following items to ensure proper
operation of the system:
• Always keep the parking sensors

O

1

clean.

• If the parking sensors are dirty, wipe them

off with a soft cloth while being careful to
not damage them.

• Do not subject the area around the parking

sensors

O

1

to strong impact. Also, do not

remove or disassemble the parking sensors.
If the parking sensors and peripheral areas
are deformed in an accident, etc., have the
sensors checked. It is recommended that
you visit an INFINITI retailer for this service.

LSD3559

5-122

Starting and driving

• Do not install any stickers (including trans-

parent stickers) or accessories on the park-
ing sensors

O

1

and their surrounding areas.

This may cause a malfunction or improper
operation.

WARNING

Failure to follow the warnings and instruc-
tions for proper use of the FEB with Pedes-
trian Detection system could result in seri-
ous injury or death.

•

The FEB with Pedestrian Detection sys-
tem is a supplemental aid to the driver. It
is not a replacement for the driver’s at-
tention to traffic conditions or responsi-
bility to drive safely. It cannot prevent
accidents due to carelessness or danger-
ous driving techniques.

•

The FEB with Pedestrian Detection sys-
tem does not function in all driving, traf-
fic, weather and road conditions.

The FEB with Pedestrian Detection system
can assist the driver when there is a risk of a
forward collision with the vehicle ahead in the
traveling lane or with a pedestrian ahead in
the traveling lane.

The FEB with Pedestrian Detection system
uses a radar sensor

O

A

located on the front of

the vehicle to measure the distance to the
vehicle ahead in the same lane. For pedestri-
ans, the FEB with Pedestrian Detection sys-
tem uses a camera

O

B

installed behind the

windshield in addition to the radar sensor.

LSD2954

FORWARD EMERGENCY BRAKING
(FEB) WITH PEDESTRIAN
DETECTION SYSTEM

Starting and driving

5-123

SYSTEM OPERATION

1. Vehicle ahead detection indicator

2. FEB with Pedestrian Detection emer-

gency warning indicator

3. FEB with Pedestrian Detection system

warning light

The FEB with Pedestrian Detection system
operates at speeds above approximately 3
mph (5 km/h). For the pedestrian detection
function, the FEB with Pedestrian Detection
system operates at speeds between 6 – 37
mph (10 – 60 km/h).

If a risk of a forward collision is detected, the
FEB with Pedestrian Detection system will
firstly provide the warning to the driver by
flashing the vehicle ahead detection indicator
(yellow) in the vehicle information display and
providing an audible alert. If the driver applies
the brakes quickly and forcefully after the
warning, and the FEB with Pedestrian De-
tection system detects that there is still the
possibility of a forward collision, the system
will automatically increase the braking force.

If the driver does not take action, the FEB
with Pedestrian Detection system issues the
second visual (flashing) (red and white) and
audible warning. If the driver releases the
accelerator pedal, then the system applies
partial braking. If the risk of a collision be-
comes imminent, the FEB with Pedestrian
Detection system applies harder braking
automatically.

LSD3919

5-124

Starting and driving