2019 NISSAN ALTIMA sensor

When driving on some roads, such as wind-
ing, hilly, curved, narrow roads, or roads
which are under construction, the radar
sensor may detect vehicles in a different
lane, or may temporarily not detect a ve-
hicle traveling ahead. This may cause the
radar system to decelerate or accelerate
the vehicle.
The detection of vehicles may also be af-
fected by vehicle operation (steering ma-
neuver or traveling position in the lane, etc.)
or vehicle condition.If this occurs, the ICC system may warn you
by blinking the system indicator and
sounding the chime unexpectedly. You will
have to manually control the proper dis-
tance away from the vehicle traveling
ahead.
Automatic cancellation
The following are conditions in which the
ICC system may be temporarily unavail-
able. In these instances, the ICC system
may not cancel and may not be able to
maintain the selected following distance
from the vehicle ahead.Condition A
Under the following conditions, the ICC system
is automatically canceled. A chime will sound
and the system will not be able to be set:
∙ Any door is open.
∙ The driver’s seat belt is not fastened.
∙ The vehicle ahead is not detected and
your vehicle is traveling below the
speed of 15 mph (24 km/h).
∙ Your vehicle has been stopped by the ICC system for approximately 3 minutes
or longer.
∙ The shif t lever is not in the D (Drive) po- sition or manual shif t mode.
∙ The electronic parking brake is applied.
∙ The VDC system is turned off.
∙ The AEB applies harder braking.
∙ VDC (including the traction control sys- tem) operates.
∙ A wheel slips.
∙ When distance measurement be- comes impaired due to adhesion of dirt
or obstruction to the sensor.
∙ When the radar signal is temporarily in- terrupted.
SSD0253
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Action to take:
When the conditions listed above are no
longer present, turn the system off using
the ProPILOT Assist switch. Turn the Pro-
PILOT 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 auto-
matically activated:∙ Any door is open.
∙ The driver’s seat belt is not fastened.
∙ Your vehicle has been stopped by the
ICC system for approximately 3 min-
utes or longer.
∙ The shif t lever is not in the D (Drive)
position or manual shif t mode.
∙ The VDC system is turned off.
∙ When distance measurement be-
comes impaired due to adhesion of
dirt or obstruction 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 “Not Avail-
able: Front Radar Blocked” warning mes-
sage will appear in the vehicle information
display.
Action to take:
If the warning message appears, stop the
vehicle in a safe place, place the shif t lever
in the P (Park) position, and turn the engine
off. When the radar signal is temporarily
interrupted, clean the sensor area of the
front bumper and restart the engine. If the
“Not Available: Front Radar Blocked” warn-
ing message continues to be displayed,
have the system checked. It is recom-
mended that you visit a NISSAN dealer 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 “Not
Available: Front Radar Blocked” message. Action to take:
When the above driving conditions no lon-
ger 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 warn-
ing (orange) will illuminate.
Action to take:
If the warning light comes on, stop the ve-
hicle 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 continued, the ICC system should
be inspected. It is recommended that you
visit a NISSAN dealer for this service.
ICC sensor maintenance
The radar sensor is located on the front of
the vehicle.
Starting and driving5-113

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 trans- parent material) or install an accessory
near the sensor. This could cause failure
or malfunction.
∙ Do not attach metallic objects near the sensor 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 a
NISSAN dealer.
The camera sensor is located above the
inside mirror.
To keep the proper operation of the sys-
tems and prevent a system malfunction,
be sure to observe the following: ∙ Always keep the windshield clean.
∙ Do not attach a sticker (including trans- parent material) or install an accessory
near the camera unit. ∙ Do not place reflective materials, such
as white paper or a mirror, on the instru-
ment panel. The reflection of sunlight
may adversely affect the camera unit’s
capability of detecting the lane mark-
ers.
∙ 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 a
NISSAN dealer.
STEERING ASSIST
WARNING
Failure to follow the warnings and in-
structions for proper use of the Steer-
ing Assist could result in serious injury
or death. ∙ The Steering Assist is not a replace-
ment for proper driving procedures
and is not designed to correct care-
less, inattentive or absent-minded
driving. The Steering Assist will not al-
ways steer the vehicle to keep it in the
lane. It is not designed to prevent loss
of control. It is the driver’s responsibil-
ity 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 operation of the vehicle, and
manually control your vehicle
appropriately.
∙ The Steering Assist is intended for use on well-developed freeways or high-
ways with gentle (moderate) curves.
To avoid risk of an accident, do not use
this system on local or non-highway
roads.
5-114Starting and driving

WARNING
Steering Assist is not a system for
hands-free driving. Always keep your
hands on the steering wheel and drive
your vehicle safely. Failure to do so
could cause a collision resulting in seri-
ous 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 wheel and a
sequence of warnings may occur. When
the driver holds and operates the steer-
ing wheel again, the warnings turn off.
Steering Assist limitations
WARNING
∙ In the following situations, the cam- era may not detect lane markers cor-
rectly or may detect lane markers in-
correctly 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 dis- continued lane markers
– When driving on roads with a wid- ening 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 remain-
ing af ter road repairs (the Steering
Assist could detect 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 another object adheres to the
camera unit
– When the lens of the camera unit is foggy
– When strong light (for example, sunlight or high beams from on-
coming vehicles) shines on the
camera
– 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 bright- ness occurs (for example, when the
vehicle enters or exits a tunnel or is
under a bridge)
5-118Starting and driving

Steering Assist cancel
Under the following conditions, the Steer-
ing Assist cancels, and the Steering Assist
status indicator and the Steering Assist in-
dicator turn off:∙ When unusual lane markers appear in the traveling lane or when the lane
marker cannot 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 Steer-
ing Assist is disabled when the wiper
operates for more than approximately
10 seconds)
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 sys-
tem again. If the warning (orange) contin-
ues to illuminate, the Steering Assist is mal-
functioning. Although the vehicle is still
drivable under normal conditions, have the
system checked. It is recommended that
you visit a NISSAN dealer for this service.
Steering Assist maintenance
The camera sensor is located above the
inside 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 trans- parent material) or install an accessory
near the camera unit.
∙ Do not place reflective materials, such as white paper or a mirror, on the instru-
ment panel. The reflection of sunlight
may adversely affect the camera unit’s
capability of detecting the lane mark-
ers. ∙ 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 a
NISSAN dealer.
Radio frequency statement
For USA
FCC ID OAYARS4B
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions: 1. This device may not cause harmful in- terference, and
2. This device must accept any interfer- ence received, including interference
that may cause undesired operation.
FCC Warning
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
5-120Starting and driving

To reset at a slower cruising speed, use one
of the following three methods:1. Lightly tap the brake pedal. When the vehicle attains the desired speed, push
the SET- switch and release it.
2. Push and hold the SET- switch. Release the switch when the vehicle slows
down to the desired speed.
3. Push, then quickly release the SET- switch. Each time you do this, the set
speed will decrease by about 1 mph
(1.6 km/h).
To resume the preset speed, push and re-
lease the RES+ switch. The vehicle will re-
sume the last set cruising speed when the
vehicle speed is over 25 mph (40 km/h).WARNING
Failure to follow the warnings and in-
structions 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 responsibility to stay alert,
drive safely, and be in control of the
vehicle at all times.
∙ There is a limitation to the RAB system capability. The RAB system is not ef-
fective 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
1
located on the rear bumper.
NOTE:
You can temporarily cancel the sonar
function in the vehicle, but the RAB sys-
tem will continue to operate. For addi-
tional information, please refer to “Rear
Sonar System (RSS)” in this section.
LSD3241
REAR AUTOMATIC BRAKING (RAB) (if
so equipped)
Starting and driving5-125

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 injury or death.
∙ 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 operate or may not perform suffi-
ciently due to vehicle conditions, driv-
ing conditions, the traffic environ-
ment, 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 op- eration, strongly press the accelerator
pedal. ∙ Always check your surroundings and
turn to check what is behind you be-
fore and while backing up. The RAB
system detects stationary objects be-
hind 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 f t [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 materi- als or snow, that have sof t outer
surfaces 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 di- agonal to the rear of the vehicle.
∙ The RAB system may unintentionally operate 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.
5-128Starting and driving

SYSTEM MAINTENANCE
Observe the following items to ensure
proper operation of the system:∙ Always keep the parking sensors
1
clean.
∙ If the parking sensors are dirty, wipe them off with a sof t cloth while being
careful to not damage them. ∙ Do not subject the area around the
parking sensors
1to 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 a NISSAN dealer for this service.
∙ Do not install any stickers (including transparent stickers) or accessories on
the parking sensors
1and their sur-
rounding areas. This may cause a mal-
function or improper operation.
WARNING
Failure to follow the warnings and in-
structions for proper use of the AEB
system could result in serious injury or
death.
∙ The AEB system is a supplemental aid to the driver. It is not a replacement
for the driver’s attention to traffic
conditions or responsibility to drive
safely. It cannot prevent accidents
due to carelessness or dangerous
driving techniques.
∙ The AEB system does not function in all driving, traffic, weather and road
conditions.
The AEB system can assist the driver when
there is a risk of a forward collision with the
vehicle ahead in the traveling lane.
LSD3241
AUTOMATIC EMERGENCY BRAKING
(AEB) (if so equipped)
5-130Starting and driving