sensor HONDA CIVIC SEDAN 2020 (in English) Service Manual

496
uuHonda Sensing ®u Adaptive Cruise Control (ACC)*
Driving
Adaptive Cruise Control (ACC)*
Helps maintain a constant vehicle speed an d a set following-interval behind a vehicle
detected ahead of yours, without you havi ng to keep your foot on the brake or the
accelerator.1 Adaptive Cruise Control (ACC)*
Important Reminder
As with any system, there are limits to ACC. Use the
brake pedal whenever necessary, and always keep a
safe interval betw een your vehicle and other vehicles.
The radar sensor for ACC is shared with the collision
mitigation braking system
TM (CMBSTM).
2 Collision Mitigation Braking SystemTM
(CMBSTM) P. 470
3WARNING
Improper use of ACC can lead to a crash.
Use ACC only when driving on
expressways or freeways and in good
weather conditions.
3WARNING
ACC has limited braking capability.
When your vehicle speed drops below
22 mph (35 km/h), ACC will
automatically cancel and no longer will
apply your vehicle’s brakes.
Always be prepared to apply the brake
pedal when conditions require.
When to use
■Vehicle speed for adaptive cruise c ontrol: Desired speed in a range above
roughly 25 mph (40 km/h) ~.
■Gear position for ACC: In ( 2 or higher position. The radar sensor is in the
lower bumper.Be careful
not to have the radar
sensor cover strongly
impacted.
The camera is
located behind the
rearview mirror.
* Not available on all models
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 496 ページ ２０２０年７月６日　月曜日　午後３時０分

Continued497
uuHonda Sensing ®u Adaptive Cruise Control (ACC)*
Driving
■How to activate the system1Adaptive Cruise Control (ACC)*
You can read about handling information for the
camera equipped with this system.
2 Front Sensor Camera P. 523
When the MAIN button is pressed, ACC and Lane
Keeping Assist System (LKAS) are both turned on or
off.
ACC may not work properly under certain conditions.
2 ACC Conditions and Limitations P. 501
When not using ACC: Turn off adaptive cruise by
pressing the MAIN button. This also will turn off the
Lane Keeping Assist System (LKAS).
Do not use ACC under the following conditions:
•On roads with heavy traf fic or while driving in
continuous stop and go traffic.
•On roads with sharp turns.•On roads with steep downhill sections, as the set
vehicle speed can be exceeded by coasting. In such
cases, ACC will not apply the brakes to maintain
the set speed.
•On roads with toll collection facilities or other
objects between lanes of traffic, or in parking
areas, or faci lities with driv e through access.
When the engine speed slows down, try to
downshift.
When the engine speed goes up, try to upshift.
You can maintain the set sp eed if you change gear
within five seconds.
How to use
■Press the MAIN button on
the steering wheel.
ACC (green) is on in the instrument panel.
ACC is ready to use.
* Not available on all models
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 497 ページ ２０２０年７月６日　月曜日　午後３時０分

Continued501
uuHonda Sensing ®u Adaptive Cruise Control (ACC)*
Driving
The system may automatically shut off and the ACC indicator will come on under
certain conditions. Some examples of thes e conditions are listed below. Other
conditions may reduce some of the ACC functions.
2 Front Sensor Camera P. 523
■Environmental conditions
• Driving in bad weather (rain, fog, snow, etc.).
■Roadway conditions
• Driving on a snowy or wet roadway (obs cured lane marking, vehicle tracks,
reflected lights, road spray, high contrast).
■Vehicle conditions
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• An abnormal tire or wheel condition (Wro ng sized, varied size or construction,
improperly inflated, co mpact spare tire, etc.).
• The camera temperature gets too high.
• The parking brake is applied.
• When the radar sensor cover is dirty.
• The vehicle is tilted due to a heavy load or suspension modifications.
• When tire chains are installed.
■ACC Conditions and Limitations1ACC Conditions and Limitations
If you need the radar sensor to be repaired, or
removed, or the radar se nsor cover is strongly
impacted, turn off the system by pressing the MAIN
button and take your vehicle to a dealer.
Have your vehicle checked by a dealer if you find any
unusual behavior of the system (e.g., the warning
message appears too frequently).
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 501 ページ ２０２０年７月６日　月曜日　午後３時０分

502
uuHonda Sensing ®u Adaptive Cruise Control (ACC)*
Driving
■Detection limitations
• A vehicle suddenly crosses in front of you.
• The interval between your vehicle and the vehicle ahead of you is too short.
• A vehicle cuts in front of you at a slow speed, and it brakes suddenly.
• When you accelerate rapidly and approach the vehicle ahead of you at high
speed.
• The vehicle ahead of you is a motorcycle, bicycle, mobility scooter, or other small
vehicle.
• When there are animals in front of your vehicle.
• When you drive on a curved or winding or undulating road that makes it difficult
for the sensor to properly dete ct a vehicle in front of you.
• The speed difference between your vehicl e and a vehicle in front of you is
significantly large.
• An oncoming vehicle suddenly comes in front of you.
• Your vehicle abruptly crosses over in front of an oncoming vehicle.
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 502 ページ ２０２０年７月６日　月曜日　午後３時０分

uuHonda Sensing ®u Adaptive Cruise Control (ACC)*
508
Driving
■Automatic cancellation
The beeper sounds and a message appears on the driver information interface when
ACC is automatically canceled. Any of these conditions may cause the ACC to
automatically cancel:
• Bad weather (rain, fog, snow, etc.)
• When the radar sensor in th e lower bumper gets dirty.
• The vehicle ahead of you cannot be detected.
• An abnormal tire condition is detected, or the tires are skidding.
• Driving on a mountainous road, or driving off road for extended periods.
• Abrupt steering wheel movement.
• When the ABS, VSA ® or CMBS
TM is activated.
• When the ABS or VSA ® system indicator comes on.
• When you manually apply the parking brake.
• When the detected vehicle within the ACC range is too close to your vehicle.
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
• When the Maximum Load Limit is exceeded.
• When passing through an enclos ed space, such as tunnel.
• Ignoring shift down indication shown in the tachometer display will cancel the
ACC after about 10 seconds.
• The engine speed goes into the tachometer’s red zone.
• The engine speed goes to below 1,000 rpm.
• You shift into neutral temporarily when shifting into a higher or lower gear.
1Automatic cancellation
Even though ACC has been automatically canceled,
you can still resume the prior set speed.
Wait until the condition that caused ACC to cancel
improves, then press the – /SET button.
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 508 ページ ２０２０年７月６日　月曜日　午後３時０分

511
uuHonda Sensing ®u Lane Keeping Assist System (LKAS)
Continued
Driving
Lane Keeping Assist System (LKAS)
Provides steering input to help keep the vehicle in the middle of a detected lane and
provides tactile and visual al erts if the vehicle is detected drifting out of its lane.1Lane Keeping Assist System (LKAS)
Important Safety Reminders
The LKAS is for your convenience only. It is not a
substitute for your vehicl e control. The system does
not work if you take y our hands off the steering
wheel or fail to steer the vehicle.
2 Driver Information Interface Warning and
Information Messages P. 94
Do not place objects on the instrument panel.
Objects may reflect on th e front windshield and
prevent correct detectio n of the traffic lanes.
LKAS only alerts you when lane drift is detected
without a turn signal in us e. The LKAS may not detect
all lane markings or lane departures; accuracy will
vary based on weather, speed, and lane marker
condition.
It is always your responsibility to safely operate the
vehicle and avoid collisions.
The LKAS is convenient when it is used on freeways.
The LKAS may not work properly or may work
improperly under the certain conditions:
2 LKAS Conditions and Limitations P. 516
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 523
When you operate the turn signals to chan ge lanes, the system is suspended, and
resumes after the signals are off.
If you make a lane change without operating the turn signals, the LKAS alerts
activate, and torque is applied to the steering.
■Front Sensor
Camera
Monitors the
lane lines■Tactile and visual alerts
Rapid vibrations on the steering wheel
and a warning display alert you that
the vehicle is drifting out of a detected
lane.
■Steering input assist
The system applies torque to the steering to keep the vehicle between the left
and right lane lines. The applied torque becomes stronger as the vehicle gets
closer to either of the lane lines.
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 511 ページ ２０２０年７月６日　月曜日　午後３時０分

519
uuHonda Sensing ®u Road Departure Mitigation (RDM) System
Continued
Driving
Road Departure Mitigation (RDM) System
Alerts and helps to assist you when the system detects a possibility of your vehicle
unintentionally crossing over detected lane markings and/or leaving the roadway
altogether.
The front camera behind the rearview mirror
monitors left and right lane markings (in white or
yellow). If your vehicle is getting too close to
detected lane markings without a turn signal
activated, the system, in addition to a visual
alert, applies steering torque and alerts you with
rapid vibrations on the steering wheel, to help
you remain within the detected lane.
2 Customized Features P. 124, 337
As a visual alert, the Lane Departure
message appears on the driver information
interface.
If the system determines that its steering input
is insufficient to keep your vehicle on the
roadway, it may apply braking.
u Braking is applied only when the lane
markings are solid continuous lines.
The system cancels assisting operations wh en you turn the steering wheel to avoid
crossing over detected lane markings.
If the system operates several times with out detecting driver response, the system
beeps to alert you.
■How the System Works
1 Road Departure Mitigation (RDM) System
Important Safety Reminder
Like all assistance systems, the RDM system has
limitations.
Over-reliance on the RDM system may result in a
collision. It is always your responsibility to keep the
vehicle within your driving lane.
The RDM system only alerts you when lane drift is
detected without a turn signal in use. The RDM
system may not detect all la ne markings or lane or
roadway departures; accu racy will vary based on
weather, speed and lane marker condition. It is
always your responsibilit y to safely operate the
vehicle and avoid collisions.
You can read about handling information for the
camera equipped with this system.
2 Front Sensor Camera P. 523
The RDM system may not wo rk properly or may work
improperly under the certain conditions: 2 RDM Conditions and Limitations P. 521
There are times when you may not notice RDM
functions due to your opera tion of the vehicle, or
road surface conditions.
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 519 ページ ２０２０年７月６日　月曜日　午後３時０分

523
uuHonda Sensing ®u Front Sensor Camera
Continued
Driving
Front Sensor Camera
The camera, used in systems such as LKAS, RDM, ACC*, ACC with Low Speed
Follow*, and CMBSTM, is designed to detect an object that triggers any of the
systems to operate its functions.
This camera is located behind the rearview
mirror.
To help reduce the likelihood that high interior
temperatures will cause the camera’s sensing
s y s t e m t o s h u t o f f , w h e n p a r k i n g , f i n d a s h a d y
area or face the front of the vehicle away from
the sun. If you use a reflective sun shade, do
not allow it to cover the camera housing.
Covering the camera can concentrate heat on
it.
■Camera Location and Handling Tips
1Front Sensor Camera
Never apply a film or attach any objects to the
windshield, the hood, or th e front grille that could
obstruct the camera’s fiel d of vision and cause the
system to operate abnormally.
Scratches, nicks, and othe r damage to the windshield
within the camera’s fiel d of vision can cause the
system to operate abnormall y. If this occurs, we
recommend that you replac e the windshield with a
genuine Honda replacem ent windshield. Making
even minor repairs within th e camera’s field of vision
or installing an aftermarket replacement windshield
may also cause the system to operate abnormally.
After replacing the winds hield, have a dealer
recalibrate the camera. Pr oper calibration of the
camera is necessary for the system to operate
properly.
Do not place an object on the top of the instrument
panel. It may reflect onto the windshield and prevent
the system from detecting lane lines properly.
Front Sensor
Camera
* Not available on all models
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 523 ページ ２０２０年７月６日　月曜日　午後３時０分

uuHonda Sensing ®u Front Sensor Camera
524
Driving
1Front Sensor Camera
If the Some Driver Assist Systems Cannot
Operate: Camera Temperature Too High message
appears:
•Use the climate control system to cool down the
interior and, if necessary, also use defroster mode
with the airflow directed toward the camera.
•Start driving the vehicle to lower the windshield
temperature, which cool s down the area around
the camera.
If the Some Driver Assist Systems Cannot
Operate: Clean Front Windshield message
appears:
•Park your vehicle in a sa fe place, and clean the
windshield. If the message does not disappear after
you have cleaned the winds hield and driven for a
while, have your vehicle checked by a dealer.
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 524 ページ ２０２０年７月６日　月曜日　午後３時０分

525
uuHonda Sensing ®u Radar Sensor
Driving
Radar Sensor
The radar sensor is in the lower bumper.1Radar Sensor
Avoid strong impacts to the radar sensor cover.
For the CMBS to work properly:
•Always keep the radar sensor cover clean.•Never use chemical solvents or polishing powder
for cleaning the sensor cove r. Clean it with water
or a mild detergent.
•Do not put a sticker on th e radar sensor cover or
replace the radar sensor cover.
If you need the radar sensor to be repaired, or
removed, or the radar se nsor cover is strongly
impacted, turn off the syst em by using the CMBS OFF
button and take your vehicle to a dealer.
2 CMBS
TM On and Off P. 474
If the vehicle is involved in any of the following
situations, the radar sensor may not work properly.
Have your vehicle checked by a dealer:
•Your vehicle is involved in a frontal collision.•Your vehicle drives th rough deep water or is
submerged in deep water.
•Your vehicle strongly strikes a bump, curb, chock,
or embankment that coul d jar the radar sensor.
Radar Sensor
20 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6401.book 525 ページ ２０２０年７月６日　月曜日　午後３時０分