2023 NISSAN ALTIMA Owners Manual

I-FCW SYSTEM LIMITATIONS
LSD2312
Illustration A
Starting and driving5-153

WARNING
Listed below are the system limitations
for the I-FCW system. Failure to operate
the vehicle in accordance with these
system limitations could result in seri-
ous injury or death.
• The I-FCW system cannot detect all
vehicles under all conditions. •
The radar sensor does not detect the
following objects:
– Pedestrians, animals or obstacles
in the roadway
– Oncoming vehicles
– Crossing vehicles
• (Illustration A) The I-FCW system
does not function when a vehicle
ahead is a narrow vehicle, such as a
motorcycle. •
The radar sensor may not detect a
vehicle ahead in the following
conditions:
– Snow or heavy rain
– Dirt, ice, snow or other material
covering the radar sensor.
– Interference by other radar
sources.
– Snow or road spray from traveling
vehicles.
– Driving in a tunnel
– (Illustration B) When the vehicle
ahead is being towed.
LSD2265
Illustration B
5-154Starting and driving

–(Illustration C) When the distance
to the vehicle ahead is too close,
the beam of the radar sensor is
obstructed.
– (Illustration D) When driving on a
steep downhill slope or roads with
sharp curves.
• The system is designed to automati-
cally check the sensor’s functionality,
within certain limitations. The sys-
tem may not detect some forms of
obstruction of the sensor area such
as ice, snow, stickers, etc. In these
cases, the system may not be able to
warn the driver properly. Be sure that
you check, clean and clear the sensor
area regularly.
• Excessive noise will interfere with the
warning chime sound, and the chime
may not be heard.
Starting and driving5-155

LSD2266
Illustration C
5-156Starting and driving

LSD2313
Illustration D
Starting and driving5-157

SYSTEM TEMPORARILY
UNAVAILABLE
Condition A
When the radar sensor picks up interfer-
ence from another radar source, making it
impossible to detect a vehicle ahead, the
I-FCW system is automatically turned off.
The AEB with Pedestrian Detection system
warning light (orange) will illuminate.
Action to take
When the above conditions no longer exist,
the I-FCW system will resume
automatically.
Condition B
When there is inclement weather (rain, fog,
snow, etc.) blocking the front radar sensor,
the I-FCW system will automatically be
canceled, the chime will sound and the
“Forward Driving Aids temporarily disabled
Front Sensor blocked See Owner’s Manual”
warning message will appear in the vehicle
information display.
LSD3238
For vehicles with the 7 inch (18 cm) display
5-158Starting and driving

Action to take:
When the conditions listed above are no
longer present, the warning message will
no longer be available in the vehicle infor-
mation display. If the “Forward Driving Aids
temporarily disabled Front Sensor blocked
See Owner’s Manual” warning message
continues to be displayed, have the system
checked. It is recommended that you visit a
NISSAN dealer for this service.
Condition C
When the radar sensor of the front bumper
is covered with dirt or is obstructed, the
I-FCW system will automatically be can-
celed. The chime will sound and the “For-
ward Driving Aids temporarily disabled
Front Sensor blocked See Owner’s Manual”
warning message will appear in the vehicle
information display.
LSD3912
For vehicles with the 5 inch (13 cm) display
Starting and driving5-159

Action to take:
If the warning message appears, stop the ve-
hicle 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 “Forward Driving
Aids temporarily disabled Front Sensor
blocked See Owner’s Manual” warning mes-
sage continues to be displayed, have the sys-
tem checked. It is recommended that you
visit a NISSAN dealer for this service.
Condition D
When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snowfields, driving next to
long walls), the system may illuminate the
system warning light and display the “For-
ward Driving Aids temporarily disabled
Front Sensor blocked See Owner’s Manual”
warning message.
Action to take:
When the above driving conditions no lon-
ger exist, turn the system back on.
NOTE:
If the AEB with Pedestrian Detection sys-
tem stops working, the I-FCW system will
also stop working.
SYSTEM MALFUNCTION
If the I-FCW system malfunctions, it will be
turned off automatically, a chime will
sound, the AEB with Pedestrian Detection
system warning light (orange) will illumi-
nate and the warning message [Malfunc-
tion] will appear in the vehicle information
display.Action to take
If the warning light (orange) comes on, stop
the vehicle in a safe location, turn the en-
gine off and restart the engine. If the
warning light continues to illuminate, have
the I-FCW system checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
LSD4448
5-160Starting and driving