System failure INFINITI QX50 2021 Service Manual

HOW TO ENABLE/DISABLE THE
BSI SYSTEMWhen the BSI system is enabled in the lower
display, the system can be turned off tempo-
rarily by pushing the ProPILOT Assist switch
on the steering wheel.Perform the following steps to enable or dis-
able the BSI system:
1. Press the MENU button below the lower
display screen.
2. Select “Driver Assistance.”
3. Select “Blind Spot Assist.”
4. Select “ON” to turn the “Blind Spot Inter- vention” system on or off.
• Select the “Blind Spot Indicator” to set it to either “Bright”, “Dark” or “Standard”.
BSI SYSTEM LIMITATIONS
WARNING
Listed below are the system limitations for
the BSI system. Failure to operate the vehicle
in accordance with these system limitations
could result in serious injury or death.
• The BSI system cannot detect all vehicles
under all conditions.
• The radar sensors may not be able to de-
tect and activate BSI when certain ob-
jects are present such as:
– Pedestrians, bicycles, or animals.
– Vehicles such as motorcycles, low
height vehicles, or high ground clear-
ance vehicles.
LSD3936
5-58Starting and driving

For Canada
Applicable law: Canada 310
This device contains licence-exempt
transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic Develop-
ment Canada’s licence-exempt RSS(s).
Operation is subject to the following two
conditions: (1) This device may not cause in-
terference, and (2) This device must accept
any interference, including interference that
may cause undesired operation of the device.
Radio frequency radiation exposure informa-
tion: This equipment complies with radiation
exposure limits set forth for an uncontrolled
environment. This equipment should be in-
stalled and operated with minimum distance
of 20 cm between the radiator and your
body.WARNING
Failure to follow the warnings and instruc-
tions for proper use of the RCTA system
could result in serious injury or death.
• The RCTA system is not a replacement
for proper driving procedures and is not
designed to prevent contact with ve-
hicles or objects. When backing out of a
parking space, always use the side and
rear mirrors and turn and look in the di-
rection your vehicle will move. Never rely
solely on the RCTA system.
The RCTA system will assist you when back-
ing out from a parking space. When the ve-
hicle is in reverse, the system is designed to
detect other vehicles approaching from the
right or left of the vehicle. If the system de-
tects cross traffic, it will alert you.
REAR CROSS TRAFFIC ALERT
(RCTA)
Starting and driving5-67

RCTA SYSTEM LIMITATIONSWARNING
Listed below are the system limitations for
the RCTA system. Failure to operate the
vehicle in accordance with these system
limitations could result in serious injury or
death. •
Always check surroundings and turn to
check what is behind you before backing
up. The radar sensors detect approach-
ing (moving) vehicles. The radar sensors
cannot detect every object such as:
– Pedestrians, bicycles, motorcycles,
animals or child-operated toy ve-
hicles
– A vehicle that is passing at speeds
greater than approximately 19 mph
(30 km/h)
– A vehicle that is passing at speeds
lower than approximately 5 mph
(8 km/h)
• The radar sensors may not detect ap-
proaching vehicles in certain situations:
– Illustration
OA: When a vehicle
parked next to you obstructs the
beam of the radar sensor.
– Illustration
OB: When the vehicle is
parked in an angled parking space.
– Illustration
OC: When the vehicle is
parked on inclined ground.
– Illustration
OD: When an approaching
vehicle turns into your vehicle's park-
ing lot aisle.
– Illustration
OE: When the angle
formed by your vehicle and ap-
proaching vehicle is small.
LSD3195
Starting and driving5-71

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)
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To change to a slower cruising speed:
• Push and hold the SET- switch. The setvehicle speed decreases by approximately
5 mph (5 km/h).
• Push, then quickly release, the SET- switch. Each time you do this, the set speed de-
creases by approximately 1 mph (1 km/h).
How to momentarily accelerate or
decelerate
• Depress the accelerator pedal when accel-eration is required. Release the accelerator
pedal to resume the previously set vehicle
speed.
• Depress the brake pedal when deceleration is required. Control by the ProPILOT Assist
system is canceled. Push the RES+ switch
to resume the previously set vehicle speed.
WARNING
When the accelerator pedal is depressed
and you are approaching the vehicle ahead,
the ICC system will neither control the
brake nor warn the driver with the chime
and display. The driver must manually con-
trol the vehicle speed to maintain a safe
distance to the vehicle ahead. Failure to do
so could result in severe personal injury or
death.
NOTE:
When you accelerate by depressing the ac-
celerator pedal or decelerate by pushing the
SET- switch and the vehicle travels faster
than the speed set by the driver, the set
speed vehicle indicator will blink.
How to change the set distance to
the vehicle ahead
The distance to the vehicle ahead can be
selected at any time.
Each time the DISTANCE switch
OAis
pushed, the set distance will change to long,
middle, short and back to long again in that
sequence.
LSD2949
5-84Starting and driving

NOTE:
• When the Cruise screen is displayed on thevehicle information display, press the OK
button on the steering wheel to call up the
“Driving Aids” setting display in the upper
display.
• When enabling/disabling the system through the lower display, the system re-
tains the current settings even if the en-
gine is restarted.
How to cancel the ProPILOT Assist
system
To cancel the ProPILOT Assist system, use
one of the following methods:
• Push the CANCEL switch.
• Tap the brake pedal (except at a standstill).
• Push the ProPILOT Assist switch to turnthe system off. The ProPILOT Assist status
indicator will go out.
When the ProPILOT Assist system is can-
celed while the vehicle is stopped, the elec-
tronic parking brake is automatically
activated.
WARNING
To prevent the vehicle from moving or roll-
ing unexpectedly, which could result in se-
rious personal injury or property damage,
before exiting the vehicle make sure to
push the ProPILOT Assist switch to turn
the system off, place the shift lever in the P
(Park) position, and turn the engine off.
INTELLIGENT CRUISE CONTROL
(ICC) (for vehicles with ProPILOT
Assist)
WARNING
Failure to follow the warnings and instruc-
tions for proper use of the ICC system
could result in serious injury or death.
• The ICC system is only an aid to assist the
driver and is not a collision warning or
avoidance device. It is recommended for
highway use only and it is not intended
for city driving. It is the driver’s respon-
sibility to stay alert, drive safely, and be
in control of the vehicle at all times. •
There are limitations to the ICC system
capability. The ICC system does not
function in all driving, traffic, weather,
and road conditions. It is the driver’s re-
sponsibility to stay alert, drive safely,
keep the vehicle in the traveling lane, and
be in control of the vehicle at all times.
• Always observe posted speed limits and
do not set the speed over them.
• The ICC system does not react to sta-
tionary and slow moving vehicles.
• Always drive carefully and attentively
when using the ICC system. Read and
understand the Owner’s Manual thor-
oughly before using the ICC system. To
avoid serious injury or death, do not rely
on the system to prevent accidents or to
control the vehicle’s speed in emergency
situations. Do not use the ICC system
except in appropriate road and traffic
conditions.
ICC system operation
The ICC system is designed to maintain a
selected distance from the vehicle in front of
you and can reduce the speed to match a
slower vehicle ahead. The system decelerates
the vehicle as necessary and if the vehicle
Starting and driving5-87

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

Action to take:
When the conditions listed above are no lon-
ger present, turn the system off using the
ProPILOT Assist switch. Turn the ProPILOT
Assist system back on to use the system.
NOTE:
When the ICC system is canceled under
the following conditions at a standstill,
the electronic parking brake is automati-
cally activated:
• Any door is open.
• The driver’s seat belt is not fastened.
• Your vehicle has been stopped by the ICCsystem for approximately 3 minutes or
longer.
• The shift lever is not in the D (Drive) posi- tion or manual shift mode.
• The VDC system is turned off.
• When distance measurement becomes im- paired due to adhesion of dirt or obstruc-
tion to the sensor.
• When the radar signal is temporarily interrupted.
Condition B
When the radar sensor of the front bumper is
covered with dirt or is obstructed, the ICC
system will automatically be canceled. The chime will sound and the “Unavailable:
Front Radar Blocked” warning message will
appear in the vehicle information display.
Action to take:
If the warning message appears, stop 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 sig-
nal is temporarily interrupted, clean the sen-
sor area of the front bumper and restart the
engine. If the “Unavailable: Front Radar
Blocked” warning message continues to be
displayed, have the system checked. It is rec-
ommended that you visit an INFINITI retailer
for this service.
Condition C
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
system warning light and display the “Un-
available: Front Radar Blocked” message.
Action to take:
When the above driving conditions no longer
exist, turn the system back on.
ICC system malfunction
If the ICC system malfunctions, it will be
turned off automatically, a chime will sound,
and the speed control status warning (or-
ange) will illuminate.
Action to take:
If the warning light comes on, stop the vehicle
in a safe place. Turn the engine off, restart
the engine and set the ICC system again. If it
is not possible to set the ICC system or the
indicator stays on, it may be a malfunction.
Although the normal driving can be contin-
ued, the ICC system should be inspected. It is
recommended that you visit an INFINITI re-
tailer for this service.
ICC sensor maintenance
The radar sensor is located on the front of the
vehicle.
To keep the ICC system operating properly,
be sure to observe the following:
• Always keep the sensor area clean.
• Do not strike or damage the areas around
the sensor.
• Do not attach a sticker (including transpar- ent material) or install an accessory near
the sensor. This could cause failure or
malfunction.
5-96Starting and driving

• Do not attach metallic objects near thesensor area (brush guard, etc.). This could
cause failure or malfunction.
• Do not alter, remove, or paint the front bumper.
Before customizing or restoring the front
bumper, it is recommended that you visit an
INFINITI retailer.
The camera sensor is located above the in-
side mirror.
To keep the proper operation of the systems
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.
STEERING ASSIST
WARNING
Failure to follow the warnings and instruc-
tions for proper use of the Steering Assist
could result in serious injury or death.
• The Steering Assist is not a replacement
for proper driving procedures and is not
designed to correct careless, inattentive
or absent-minded driving. The Steering
Assist will not always steer the vehicle to
keep it in the lane. It 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.
• As there is a performance limit to the
Steering Assist’s capability, never rely
solely on the system. The Steering Assist
does not function in all driving, traffic,
weather, and road conditions. Always
drive safely, pay attention to the opera-
tion of the vehicle, and manually control
your vehicle appropriately. •
The Steering Assist is intended for use on
well-developed freeways or highways
with gentle (moderate) curves. To avoid
risk of an accident, do not use this system
on local or non-highway roads.
• The Steering Assist only steers the ve-
hicle to maintain its position in the center
of a lane. The vehicle will not steer to
avoid objects in the road in front of the
vehicle or to avoid a vehicle moving into
your lane.
• 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. Never take your
hands off the steering wheel when driv-
ing. Always keep your hands on the
steering wheel and drive your vehicle
safely.
• Always drive carefully and attentively
when using the Steering Assist. Read
and understand the Owner’s Manual
thoroughly before using the Steering As-
sist. To avoid serious injury or death, do
not rely on the system to prevent acci-
dents or to control the vehicle’s speed in
emergency situations. Do not use the
Steering Assist except in appropriate
road and traffic conditions.
Starting and driving5-97

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