2021 INFINITI QX50 lane assist

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

If the steering wheel is not operated or the
driver takes his/her hands off the steering
wheel for a period of time, the warning (1)
appears in the vehicle information display.
If the driver does not operate the steering
wheel after the warning has been displayed,
an audible alert sounds and the warning
flashes in the vehicle information display, fol-
lowed by a quick brake application to request
the driver to take control of the vehicle again.
If the driver still does not respond, the ProPI-
LOT Assist turns on the hazard flasher and
slows the vehicle to a complete stop.
The driver can cancel the deceleration at any
time by steering, braking, accelerating, or op-
erating the ProPILOT Assist switch.
WARNING
Steering Assist is not a system for a hands-
free driving. Always keep your hands on
the steering wheel and drive your vehicle
safely. Failure to do so could cause a colli-
sion resulting in serious personal injury or
death.
NOTE:
If the driver lightly touches (instead of firmly
grips) the steering wheel, the steering
torque sensor may not detect the driver’s
hand(s) on the steering wheel and a sequence
of warnings may occur. When the driver
holds and operates the steering wheel again,
the warnings turn off.
Steering Assist limitations
WARNING
• In the following situations, the camera
may not detect lane markers correctly or
may detect lane markers incorrectly and
the Steering Assist may not operate
properly:
– When driving on roads where there
are multiple parallel lane markers,
lane markers that are faded or not
painted clearly, nonstandard lane
markers, or lane markers covered
with water, dirt, snow, etc.
– When driving on roads with discon-
tinued lane markers
– When driving on roads with a widen-
ing or narrowing lane width –
When driving on roads where there
are multiple lanes or unclear lane
markers due to road construction
– When driving on roads where there
are sharply contrasting objects, such
as shadows, snow, water, wheel ruts,
seams, or lines remaining after road
repairs (the Steering Assist could de-
tect these items as lane markers)
– When driving on roads where the
traveling lane merges or separates
• Do not use the Steering Assist under the
following conditions because the system
may not properly detect lane markers.
Doing so could cause a loss of vehicle
control and result in an accident.
– During bad weather (rain, fog, snow,
dust, etc.)
– When rain, snow, sand, etc., is thrown
up by the wheels of other vehicles
– When dirt, oil, ice, snow, water, or an-
other object adheres to the camera
unit
– When the lens of the camera unit is
foggy
– When strong light (for example, sun-
light or high beams from oncoming
vehicles) shines on the camera
5-100Starting and driving

–When the headlights are not bright
due to dirt on the lens or the head-
lights are off in tunnels or darkness
– When a sudden change in brightness
occurs (for example, when the vehicle
enters or exits a tunnel or is under a
bridge)
– When driving on roads where the
traveling lane merges or separates or
where there are temporary lane
markers because of road
construction
– When there is a lane closure due to
road repairs
– When driving on a bumpy road sur-
face, such as an uneven dirt road
– When driving on sharp curves or
winding roads
– When driving on repeated uphill and
downhill roads
• Do not use the Steering Assist under the
following conditions because the system
will not operate properly:
– When driving with a tire that is not
within normal tire conditions (for ex-
ample, tire wear, abnormal tire pres-
sure, installation of a spare tire, tire
chains, nonstandard wheels) –
When the vehicle is equipped with
non-original brake or suspension
parts
– When an object that obstructs the
camera unit detection range is
attached
– When excessively heavy baggage is
loaded in the rear seat or luggage
area of your vehicle
– When the vehicle load capacity is
exceeded
– When towing a trailer or other vehicle
• Excessive noise will interfere with the
warning chime sound, and the beep may
not be heard.
• For the ProPILOT Assist system to oper-
ate properly, the windshield in front of
the camera must be clean. Replace worn
wiper blades. The correct size wiper
blades must be used to help make sure
the windshield is kept clean. Only use
Genuine INFINITI wiper blades, or
equivalent wiper blades, that are specifi-
cally designed for use on your vehicle
model and model year. It is recommended
that you visit your INFINITI retailer for
the correct parts for your vehicle.Steering Assist temporary standby
Automatic standby due to driving operation:
When the driver activates the turn signal, the
Steering Assist is temporarily placed in a
standby mode. (The Steering Assist restarts
automatically when the operating conditions
are met again.)
Automatic standby:
In the following cases, a warning message is
displayed along with the chime, and the
Steering Assist is placed in a temporary
standby mode. (The Steering Assist restarts
automatically when the operating conditions
are met again.)
• When lane markers on both sides are no longer detected
• When a vehicle ahead is no longer detected under approximately 37 mph (60 km/h)
Steering Assist cancel
Under the following conditions, the Steering
Assist cancels, and the Steering Assist status
indicator and the Steering Assist indicator
turn off:
Starting and driving5-101

• When unusual lane markers appear in thetraveling lane or when the lane marker can-
not be correctly detected for some time due
to certain conditions (for example, a snow
rut, the reflection of light on a rainy day, the
presence of several unclear lane markers)
• When the windshield wiper operates in the high (HI) speed operation (the Steering As-
sist is disabled when the wiper operates for
more than approximately 10 seconds)
NOTE:
For vehicles with auto wipers, the wipers
may automatically switch to LO or HI. If the
auto wipers remain in LO or HI for longer
than 10 seconds, the steering assist will
cancel.
Action to take:
Turn the ICC system off using the CANCEL
switch. When the conditions listed above are
no longer present, turn the ICC system on
again.
Steering Assist malfunction
When the system malfunctions, it turns off
automatically. The Steering Assist status
warning illuminates (orange). A chime may
sound depending on the situation. Action to take:
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the en-
gine off, restart the engine, resume driving,
and set the Intelligent Cruise Control system
again. If the warning (orange) continues to
illuminate, the Steering Assist is malfunction-
ing. Although the vehicle is still drivable under
normal conditions, have the system checked.
It is recommended that you visit an INFINITI
retailer for this service.
Steering Assist maintenance
The camera sensor is located above the in-
side mirror.
To keep the proper operation of the system
and prevent a system malfunction, be sure to
observe the following:
• Always keep the windshield clean.
• Do not attach a sticker (including transpar-
ent material) or install an accessory near
the camera unit.
• Do not place reflective materials, such as white paper or a mirror, on the instrument
panel. The reflection of sunlight may ad-
versely affect the camera unit’s capability
of detecting the lane markers. • Do not strike or damage the areas around
the camera unit. Do not touch the camera
lens or remove the screw located on the
camera unit.
If the camera unit is damaged due to an
accident, it is recommended that you visit an
INFINITI retailer.
Radio frequency statement
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 device may not cause harmful inter- ference, and
2. This device must accept any interference received, including interference that may
cause undesired operation.
5-102Starting and driving

•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

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
5-112Starting 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 driving5-115