2023 NISSAN ALTIMA brakes

If the radar sensorO1detects a slower
moving vehicle ahead, the system will re-
duce the vehicle speed so that your vehicle
follows the vehicle in front at the selected
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 ap-
proximately 650 f t (200 m) ahead.
VEHICLE-TO-VEHICLE DISTANCE
CONTROL MODE OPERATION
LSD4551
5-74Starting and driving

To set cruising speed,accelerate your ve-
hicle to the desired speed, push the SET–
switch
OCand release it. The ICC system
set indicator (green), vehicle ahead detec-
tion indicator, set distance indicator and
set vehicle speed indicator
OBwill come on.
Take your foot off the accelerator pedal.
Your vehicle will maintain the set speed. When the SET– switch is pushed under the
following conditions, the system cannot be
set and the ICC indicators will blink for ap-
proximately 2 seconds:
• When traveling below 20 mph (30 km/h)
and a vehicle ahead is not detected
• When the shif t lever is not in the D (Drive) or Manual mode
• When the parking brake is applied
• When the brakes are operated by the driver When the SET– switch is pushed under the
following conditions, the system cannot be
set.
A warning chime will sound and a message
will pop up:
• When the VDC system is off (To use the
ICC system, turn on the VDC system. Push
the ICC switch to turn off the ICC system
and reset the ICC switch by pushing the
ICC switch again.)
For additional information about the
VDC system, see “Vehicle Dynamic Con-
trol (VDC)” (P. 5-175).
• When VDC is operating
• When a wheel is slipping (To use the ICC system, make sure the wheels are no lon-
ger slipping.)
LSD3866LSD3102
5-78Starting and driving

1System set display with vehicle ahead
2System set display without vehicle
ahead
The driver sets the desired vehicle speed
based on the road conditions. The ICC sys-
tem maintains the set vehicle speed, simi-
lar 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 ve-
hicle by controlling the throttle and apply-
ing the brakes to match the speed of a
slower vehicle ahead. The system then
controls the vehicle speed based on the
speed of the vehicle ahead to maintain the
driver selected distance.
NOTE:
• The stop lights of the vehicle come on
when braking is performed by the ICC
system.
• When the brake operates, a noise may be heard. This is not a malfunction.
When a vehicle ahead is detected, the ve-
hicle ahead detection indicator comes on.
The ICC system will also display the set
speed and selected distance. Vehicle ahead not detected
When a vehicle is no longer detected
ahead, the ICC system gradually acceler-
ates 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.
If a vehicle ahead appears during accelera-
tion to the set vehicle speed or any time the
ICC system is in operation, the system con-
trols the distance to that vehicle.
When a vehicle is no longer detected under
approximately 15 mph (25 km/h), the sys-
tem will be canceled.
LSD3496
Starting and driving5-79

•Always pay attention to the opera-
tion of the vehicle and be ready to
manually control the proper follow-
ing distance. The ICC system may not
be able to maintain the selected dis-
tance between vehicles (following
distance) or selected vehicle speed
under some circumstances.
• The system may not detect the ve-
hicle in front of you in certain road or
weather conditions. To avoid acci-
dents, never use the ICC system un-
der 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.
– 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 ve-
hicle may go beyond the set ve-
hicle speed and frequent braking
may result in overheating the
brakes)
– On repeated uphill and downhill
roads –
When traffic conditions make it
difficult to keep a proper distance
between vehicles because of fre-
quent acceleration or
deceleration
– Interference by other radar
sources
• Do not use the ICC system if you are
towing a trailer. The system may not
detect a vehicle ahead.
• In some road or traffic conditions, a
vehicle or object can unexpectedly
come into the sensor detection zone
and cause automatic braking. Al-
ways stay alert and avoid using the
ICC system where not recommended
in this warning section.
The radar sensor will not detect the follow-
ing 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 sensor generally detects the signals
returned from the vehicle ahead. Therefore,
if the sensor cannot detect the reflection
from the vehicle ahead, the ICC system
may not maintain the selected distance.
The following are some conditions in which
the sensor cannot properly detect a ve-
hicle ahead and the system may not oper-
ate properly:
• When snow or road spray from traveling
vehicles reduces the sensor’s detection.
• When your vehicle is towing a trailer, etc.
• When excessively heavy baggage is loaded in the rear seat or cargo area of
your vehicle.
The ICC system is designed to automati-
cally check the sensor’s operation within
the limitations of the system.
When the sensor is covered with dirt or is
obstructed, the system will automatically
be canceled. If the sensor is covered with
ice, a transparent or translucent vinyl bag,
etc., the ICC system may not detect them.
In these instances, the vehicle-to-vehicle
distance control mode may not cancel and
may not be able to maintain the selected
following distance from the vehicle ahead.
Be sure to check and clean the sensor
regularly.
Starting and driving5-83

• When the parking brake is applied
• When the VDC operates (including thetraction control system)
• When a wheel slips
When the system is not operating properly,
the chime sounds and the color of the
cruise indicator will change to orange.
Action to take
If the color of the cruise indicator changes
to orange, stop the vehicle in a safe place
and place the shif t lever in the P (Park) po-
sition. Turn the engine off, restart the en-
gine, resume driving, and then perform the
setting again.
If it is not possible to set or the indicator
stays on, it may indicate that the system
is malfunctioning. Although the vehicle
is still drivable under normal conditions,
have the vehicle checked. It is recom-
mended that you visit a NISSAN dealer
for this service.WARNING
Failure to follow the warnings and in-
structions for proper use of the ProPI-
LOT Assist system could result in seri-
ous injury or death.
• ProPILOT Assist is not a self-driving
system. Within the limits of its capa-
bilities, as described in this manual, it
helps the driver with certain driving
activities.
• The ProPILOT Assist system is not a
replacement for proper driving pro-
cedures and is not designed to cor-
rect careless, inattentive or absent-
minded driving. ProPILOT Assist will
not always steer the vehicle to keep it
in the lane. The ProPILOT Assist sys-
tem 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 ProPI-
LOT Assist 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.
• The ProPILOT Assist system is only an
aid to assist the driver and is not a
collision warning or avoidance
device.
• The ProPILOT Assist system is for
highway use only and is not intended
for city driving. Failure to apply the
brakes or steer the vehicle when nec-
essary may result in a serious
accident.
• Always observe posted speed limits
and do not set the speed over them.
• Never take your hands off the steer-
ing 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
automatically cancels the ProPILOT
Assist system.
PROPILOT ASSIST (if so equipped)
5-94Starting and driving

5. Push the SET- switchOC. The ProPILOT
Assist system begins to automatically
maintain the set speed. The ProPILOT
Assist activation indicator
ODand ProPI-
LOT Assist status indicator
OEilluminate
(blue). When a vehicle ahead is traveling
at a speed of 20 mph (32 km/h) or below
and the SET- switch is pushed, the set
speed of your vehicle is 20 mph (32
km/h).
NOTE:
When Lane Departure Prevention is en-
abled in the settings menu, turning the
ProPILOT Assist system (if so equipped)
on will activate the I-LI system at the
same time. If Lane Departure Prevention
is not enabled in the settings menu, I-LI
will automatically activate when the Pro-
PILOT Assist system is “SET.” For addi-
tional information, see “Intelligent Lane
Intervention (I-LI)” (P. 5-40). 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 approxi-
mately 2 seconds:
• When traveling below 20 mph (32 km/h) and the vehicle ahead is not detected
• When the shif t lever is not in the D (Drive) position or manual shif t mode
• When the parking brake is applied
• When the brakes are operated by the driver
LSD3229LSD3230
Starting and driving5-101

Vehicle detected ahead
When a vehicle is detected in the lane
ahead, the ICC system decelerates the ve-
hicle by controlling the throttle and apply-
ing the brakes to match the speed of a
slower vehicle ahead. The ICC system then
controls the vehicle 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. • When the brake is applied by the sys-
tem, a noise may be heard. This is not a
malfunction.
When the ICC system detects a vehicle
ahead, the vehicle ahead detection indica-
tor and the speed control status indicator
(distance control mode) illuminates (solid
green
).
Vehicle ahead stops
When the vehicle ahead decelerates to
stop, your vehicle decelerates to a stand-
still. Once your vehicle stops, the ICC sys-
tem automatically applies the brakes to
keep the vehicle stopped. When your ve-
hicle 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
seconds, your vehicle will automatically
follow the vehicle as it accelerates from a
stop.
Vehicle ahead accelerates
When your vehicle is stopped and the ve-
hicle ahead begins to accelerate, push the
RES+ switch or lightly depress the accelera-
tor 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 acceler-
ates 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 (main-
tain speed control mode) illuminates
(green outline
).
The ICC system gradually accelerates to
the set speed, but you can depress the
accelerator pedal to quickly accelerate.
When a vehicle is no longer detected and
your vehicle is traveling under approxi-
mately 15 mph (24 km/h), the ICC system
automatically cancels.
LSD3233
System set display with vehicle ahead
Starting and driving5-109

•Always pay attention to the opera-
tion of the vehicle and be ready to
manually control the proper follow-
ing distance. The ICC system may not
be able to maintain the selected dis-
tance between vehicles (following
distance) or selected vehicle speed
under some circumstances.
• The system may not detect the ve-
hicle in front of you in certain road or
weather conditions. To avoid acci-
dents, never use the ICC system un-
der the following conditions:
– 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 ve-
hicle may go beyond the set ve-
hicle speed and frequent braking
may result in overheating the
brakes)
– On repeated uphill and downhill
roads –When traffic conditions make it dif-
ficult to keep a proper distance be-
tween vehicles because of frequent
acceleration or deceleration
–Interference by other radar sources.
• Do not use the ICC system if you are
towing a trailer. The system may not
detect a vehicle ahead.
• In some road or traffic conditions, a
vehicle or object can unexpectedly
come into the sensor detection zone
and cause automatic braking. Al-
ways stay alert and avoid using the
ICC system where not recommended
in this warning section.
The ICC system will not detect the following
objects:
• Stationary or 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 radar sensor cannot properly detect a
vehicle ahead and the system may not op-
erate properly:
• When the sensor detection is reduced (conditions such as rain, snow, fog, dust
storms, sandstorms, and road spray from
other vehicles) • Driving on a steep downhill slope or roads
with sharp curves
• Driving on a bumpy road surface, such as an uneven dirt road
• If dirt, ice, snow or other material is cover- ing the radar sensor area
• A complicated-shaped vehicle such as a car carrier trailer or flatbed truck/trailer is
near the vehicle ahead.
• Interference by other radar sources
• When your vehicle is towing a trailer, etc.
• When excessively heavy baggage is loaded in the rear seat or cargo area of
your vehicle.
The ICC system is designed to automati-
cally check the radar sensor’s operation
within the limitations of the system.
The detection zone of the radar sensor is
limited. A vehicle ahead must be in the de-
tection zone for the ICC system to maintain
the selected distance from the vehicle
ahead. 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.
5-112Starting and driving