brakes INFINITI QX50 2021 User Guide

Illustration 10: If the driver activates the turn
signal while another vehicle is in the detection
zone, then the side indicator light flashes and
a chime will sound twice.
NOTE:
If the driver activates the turn signal before
a vehicle enters the detection zone, the side
indicator light will flash but no chime will
sound when another vehicle is detected.Illustration 11: If the BSI system is on and
your vehicle approaches the lane marker
while another vehicle is in the detection zone,
the side indicator light flashes and a chime
will sound three times. Then, the BSI system
slightly applies the brakes on the appropriate
side to help return the vehicle back to the
center of the driving lane.
NOTE:
• Illustration 12: The BSI system will not op-
erate if your vehicle is on a lane marker
when another vehicle enters the detection
zone. In this case, only the BSW system
operates.
• BSI braking will not operate or will stop operating and only a warning chime will
sound under the following conditions:– When the brake pedal is depressed.
– When the vehicle is accelerated during BSI system operation.
– When steering quickly.
SSD1038
Illustration 10 – Entering from the side
SSD1094
Illustration 11 – Entering from the side
LSD2051
Illustration 12 – Entering from the side
5-64Starting and driving

To reset at a slower cruising speed,use one
of the following three methods:
• Lightly tap the brake pedal. When the ve- hicle attains the desired speed, push the
SET– switch and release it.
• Push and hold the SET– switch. Release the switch when the vehicle slows to the de-
sired speed.
• Push and release the SET– switch. Each time you do this, the set speed decreases by
about 1 mph (1.6 km/h).
To resume the preset speed, push and re-
lease the RES+ switch. The vehicle returns to
the last set cruising speed when the vehicle
speed is over 25 mph (40 km/h).WARNING
Failure to follow the warnings and instruc-
tions for proper use of the ProPILOT Assist
system could result in serious injury or
death.
• ProPILOT Assist is not a self-driving
system. Within the limits of its capabili-
ties, as described in this manual, it helps
the driver with certain driving activities.
• The ProPILOT Assist system is not a re-
placement for proper driving procedures
and is not designed to correct careless,
inattentive or absent-minded driving.
ProPILOT Assist will not always steer
the vehicle to keep it in the lane. The Pro-
PILOT Assist system is not designed to
prevent loss of control. It is the driver’s
responsibility to stay alert, drive safely,
keep the vehicle in the traveling lane, and
be in control of the vehicle at all times.
• There are limitations to the ProPILOT
Assist system capability. The ProPILOT
Assist system does not function in all
driving, traffic, weather, and road condi-
tions. It is the driver’s responsibility to
stay alert, drive safely, keep the vehicle
in the traveling lane, and be in control of
the vehicle at all times. •
The ProPILOT Assist system is only an
aid to assist the driver and is not a colli-
sion warning or avoidance device.
• The ProPILOT Assist system is for high-
way use only and is not intended for city
driving. Failure to apply the brakes or
steer the vehicle when necessary may re-
sult in a serious accident.
• Always observe posted speed limits and
do not set the speed over them.
• Never take your hands off the steering
wheel when driving. Always keep your
hands on the steering wheel and drive
your vehicle safely.
• Never unfasten your safety belt when
using ProPILOT Assist. Doing so auto-
matically cancels the ProPILOT Assist
system.
• The ProPILOT Assist system does not
react to stationary and slow moving
vehicles.
PROPILOT ASSIST (if so equipped)
Starting and driving5-77

When the SET- switch is pushed under the
following conditions, the ProPILOT Assist
system cannot be set and the set vehicle
speed indicator
O1blinks for approximately 2
seconds:
• When traveling below 20 mph (30 km/h) and the vehicle ahead is not detected
• When the shift lever is not in the D (Drive) position or manual shift mode
• When the electronic parking brake is applied
• When the brakes are operated by the driver • When the VDC system is off. For additional
information, see “Vehicle Dynamic Control
(VDC) system” (P. 5-154).
• When the VDC system (including the trac- tion control system) is operating
• When a wheel is slipping
• When any door is open
• When the driver’s seat belt is not fastened
How to change the set vehicle
speed
The set vehicle speed can be adjusted.
To change to a faster cruising speed:
• Push and hold the RES+ switch. The set vehicle speed increases by approximately
5 mph (5 km/h).
• Push, then quickly release, the RES+ switch. Each time you do this, the set speed in-
creases by approximately 1 mph (1 km/h).
LSD3617LSD2948
Starting and driving5-83

Normally when controlling the distance to a
vehicle ahead, the system automatically ac-
celerates or decelerates your vehicle accord-
ing to the speed of the vehicle ahead.
Depress the accelerator to properly acceler-
ate your vehicle when acceleration is required
for a lane change. Depress the brake pedal
when deceleration is required to maintain a
safe distance to the vehicle ahead due to
sudden braking or if a vehicle cuts in. Always
stay alert when using the ICC system.
No vehicle detected ahead
The driver sets the desired vehicle speed
based on the road conditions. The ICC sys-
tem maintains the set vehicle speed, similar to
standard cruise control, as long as no vehicle
is detected in the lane ahead. The ICC system
displays the set speed.
Vehicle detected ahead
When a vehicle is detected in the lane ahead,
the ICC system decelerates the vehicle by
controlling the throttle and applying the
brakes to match the speed of a slower vehicle
ahead. The ICC system then controls the ve-
hicle speed based on the speed of the vehicle
ahead to maintain the driver selected
distance.
NOTE:
• The stop lights of the vehicle come onwhen braking is performed by the ICC
system.
LSD3618
System set display with no vehicle detected ahead
LSD2989
System set display with vehicle ahead
Starting and driving5-89

• When the brake is applied by the system, anoise may be heard. This is not a
malfunction.
When the ICC system detects a vehicle
ahead, the vehicle ahead detection indicator
and the speed control status indicator (dis-
tance control mode) illuminates (solid green
).
Vehicle ahead stops
When the vehicle ahead decelerates to stop,
your vehicle decelerates to a standstill within
the system capability. Once your vehicle
stops, the ICC system automatically applies
the brakes to keep the vehicle stopped. When
your vehicle is at a standstill, the “(RES+)
Press to start” message is displayed on the
vehicle information display.
NOTE:
When your vehicle stops for less than 3 sec-
onds, your vehicle will automatically follow
the vehicle as it accelerates from a stop.
Vehicle ahead accelerates
When your vehicle is stopped and the vehicle
ahead begins to accelerate, push the RES+
switch or lightly depress the accelerator
pedal. The ICC system starts to follow the
vehicle ahead.
Vehicle ahead not detected
When a vehicle is no longer detected ahead,
the ICC system gradually accelerates your
vehicle to resume the previously set vehicle
speed. The ICC system then maintains the set
speed.
When a vehicle is no longer detected, the
vehicle ahead detection indicator turns off
and speed control status indicator (maintain
speed control mode) illuminates (green out-
line
).
The ICC system gradually accelerates to the
set speed, but you can depress the accelera-
tor pedal to quickly accelerate. When a ve-
hicle is no longer detected and your vehicle is
traveling under approximately 15 mph (25
km/h), the ICC system automatically cancels. When passing another vehicle, the set speed
indicator
OBflashes when the vehicle speed
exceeds the set speed. The vehicle ahead
detection indicator turns off when the area
ahead of the vehicle is open. When the pedal
is released, the vehicle returns to the previ-
ously set speed. Even though your vehicle
speed is set in the ICC system, you can de-
press the accelerator pedal when it is neces-
sary to accelerate your vehicle rapidly.
LSD3620
5-90Starting and driving

WARNING
In order to reduce the risk of a collision that
may result in serious injury or death, please
be aware of the following:
• This function is only activated with the
left turn signal and will briefly accelerate
the vehicle even if a lane change is not
initiated. This can include non-passing
situations such as left side exits.
• Ensure that when passing another ve-
hicle, the adjacent lane is clear before ini-
tiating the pass. Sudden changes in traf-
fic may occur while passing- always
manually steer or brake as needed- never
solely rely on the system.
ICC system limitations
WARNING
Listed below are the system limitations for
the ICC system. Failure to operate the ve-
hicle in accordance with these system limi-
tations could result in serious injury or
death: •
The ICC system is primarily intended for
use on straight, dry, open roads with
light traffic. It is not advisable to use the
ICC system in city traffic or congested
areas.
• The ICC system will not adapt automati-
cally to road conditions. This system
should be used in evenly flowing traffic.
Do not use the system on roads with
sharp curves or on icy roads, in heavy rain
or in fog.
• As there is a performance limit to the
distance control function, never rely
solely on the ICC system. This system
does not correct careless, inattentive or
absentminded 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.
• When the ICC system automatically
brings the car to a stop, your vehicle can
automatically accelerate if the vehicle is
stopped for less than approximately 3
seconds. Be prepared to stop your ve-
hicle if necessary. •
Always pay attention to the operation of
the vehicle and be ready to manually
control the proper following distance.
The ICC system may not be able to main-
tain the selected distance between ve-
hicles (following distance) or selected
vehicle speed under some circumstances.
• The system may not detect the vehicle in
front of you in certain road or weather
conditions. To avoid accidents, never use
the ICC system under the following con-
ditions:
– On roads with heavy, high-speed
traffic or 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
bumper around the distance sensor
– On steep downhill roads (the vehicle
may go beyond the set vehicle speed
and frequent braking may result in
overheating the brakes)
– On repeated uphill and downhill roads
5-92Starting and driving

Lane Departure Prevention (LDP)
When a curve or strong cross wind exceeds
the capabilities of the Steering Assist and
your vehicle approaches either the left or the
right side of the traveling lane, a warning
chime sounds and the LDP indicator light
(orange) on the instrument panel flashes to
alert the driver. Then, the LDP system auto-
matically applies the brakes for a short period
of time to help assist the driver to return the
vehicle to the center of the traveling lane. This
action is in addition to any Steering Assist
actions.
Hands on detectionWhen the Steering Assist is activated, it
monitors the driver’s steering wheel
operation.
LSD2972
Starting and driving5-99

•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.
• Always pay attention to the operation of
the vehicle and be ready to manually de-
celerate to maintain the proper follow-
ing distance. The DCA system may not be
able to decelerate the vehicle under some
circumstances.
• This system only brakes and moves the
accelerator pedal upward to help assist
the driver to maintain a following dis-
tance from the vehicle ahead. Accelera-
tion should be operated by the driver.
• The DCA system does not control the ve-
hicle speed or warn you when you ap-
proach stationary and slow moving ve-
hicles. You must pay attention to vehicle
operation to maintain proper distance
from vehicles ahead. •
The DCA system automatically deceler-
ates your vehicle to help assist the driver
to maintain a following distance from
the vehicle ahead. Manually brake when
deceleration is required to maintain a
safe distance upon sudden braking by
the vehicle ahead or when a vehicle sud-
denly appears in front of you. Always
stay alert when using the DCA system.
• If the vehicle ahead comes to a stop, the
vehicle decelerates to a standstill within
the limitations of the system. The system
will cancel with a warning chime once it
judges that the vehicle has come to a
standstill. To prevent the vehicle from
moving, the driver must depress the
brake pedal.
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 ve-
hicle speed to help assist the driver to main-
tain a following distance.
The system automatically controls the
throttle and applies the brakes (up to ap-
proximately 40% of vehicle braking power) if
necessary. The detection range of the sensor is approxi-
mately 650 ft (200m) ahead.
Starting and driving5-107

DCA SYSTEM OPERATION
1. Vehicle information display
2. Lower display buttons3. ProPILOT Assist switch
4. DCA ON indicator
WARNING
Failure to follow the warnings and instruc-
tions for proper use of the DCA system
could result in serious personal injury or
death.
• When the vehicle ahead detection indi-
cator light is not illuminated, the 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 accel-
erator pedal, the system may not be able
to assist the driver to release the accel-
erator pedal appropriately.
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 in
maintaining a following distance. The system
will decelerate as necessary and if the vehicle
ahead comes to a stop, the vehicle deceler-
ates to a standstill. However, the DCA sys-
tem can only apply up to approximately 40%
of the vehicle’s total braking power. If a ve-
hicle moves into the traveling lane ahead or if
a vehicle traveling ahead rapidly decelerates,
the distance between vehicles may become
LSD3897
5-108Starting and driving

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 acceleratorpedal, 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 driving5-109