2021 HONDA CIVIC SEDAN brake

Continued467
uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
■There is no vehicle ahead
Your vehicle maintains the set speed without
having to keep your foot on the brake or
accelerator pedal.
If there previously was a vehicle detected
ahead that kept your vehicle from traveling at
the set speed, ACC with Low Speed Follow
accelerates your vehicle to the set speed, and
then maintains it.
■When you depress the accelerator pedal
You can temporarily increase the vehicle speed . In this case, there is no audible or
visual alert even if a vehicle is in the ACC with Low Speed Follow range.
ACC with Low Speed Follow stays on unle ss you cancel it. Once you release the
accelerator pedal, the system resume s an appropriate speed for keeping the
following-interval while a vehicle ahead is within the ACC with Low Speed Follow
range.
1 When in Operation
Even if the interval betw een your vehicle and the
vehicle detected ahead is short, ACC with Low Speed
Follow may start accelerati ng your vehicle under the
following circumstances:
•The vehicle ahead of you is going at almost the
same speed as, or faster than, your vehicle.
•A vehicle that cuts in front of you is going faster
than your vehicle, gradua lly increasing the interval
between the vehicles.
You can also set the system to beep when a vehicle in
front of you comes in and goes out of the ACC with
Low Speed Follow detect ing range. Change the ACC
Forward Vehicle Detect Beep setting.
2 Customized Features P. 115, 325
Limitations
You may need to use the brake to maintain a safe
interval when using ACC with Low Speed Follow.
Additionally, ACC with Lo w Speed Follow may not
work properly under certain conditions.
2 ACC with Low Speed Follow Conditions
and Limitations P. 469
A vehicle icon with dotted-line
contour appears on the driver
information interface
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 467 ページ ２０２０年８月２５日　火曜日　午後２時６分

Continued469
uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
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 AC C with Low Speed Follow functions.
2Front Sensor Camera P. 491
■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 size, varied size or construction,
improperly inflated, co mpact spare tire, etc.).
• The camera temperature gets too high.
• The parking brake is applied.
• When the lower bumper is dirty.
• The vehicle is tilted due to a heavy load or suspension modifications.
• When tire chains are installed.
■ACC with Low Speed Follow Conditions and Limitations1ACC with Low Speed Follow 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).
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 469 ページ ２０２０年８月２５日　火曜日　午後２時６分

470
uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
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.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 470 ページ ２０２０年８月２５日　火曜日　午後２時６分

471
uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
Continued
Driving
• When driving through a narrow iron bridge.
• When the vehicle ahead of you brakes suddenly.
• When the vehicle ahead of you has a unique shape.
• When your vehicle or the vehicle ahead of you is driving on one edge of the lane.
Radar detects upper section of
an empty carrier truck. Panel truck,
tanker truck,
etc.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 471 ページ ２０２０年８月２５日　火曜日　午後２時６分

Continued475
uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
To cancel ACC with Low Speed Follow, do any
of the following:
• Press the CANCEL button.
• Press the MAIN button.
u ACC with Low Speed Follow indicator
goes off.
• Depress the brake pedal.
u When the Low Speed Follow function
has stopped the vehicle, you cannot
cancel ACC with Low Speed Follow by
depressing the brake pedal.
■To Cancel1 To Cancel
Resuming the prior set speed: After you have
canceled ACC with Low Speed Follow, you can
resume the prior set speed while it is still displayed.
Press the RES/+ button.
The set speed cannot be set or resumed when ACC
with Low Speed Follow has been turned off using the
MAIN button. Press the MAIN button to activate the
system, then set the desired speed.
CANCEL
Button
MAIN
Button
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 475 ページ ２０２０年８月２５日　火曜日　午後２時６分

uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
476
Driving
■Automatic cancellation
The beeper sounds and a message appears on the driver information interface when
ACC with Low Speed Follow is automaticall y canceled. Any of these conditions may
cause the ACC with Low Speed Fo llow 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 the vehicle is stopped on a very steep slope.
• When you manually apply the parking brake.
• When the detected vehicle within the ACC with Low Speed Follow 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.
The ACC with Low Speed Follow automatic ca ncellation can be also triggered by the
following causes. In these cases, the pa rking brake will be automatically applied.
• The driver’s seat belt is unfasten ed when the vehicle is stationary.
• The vehicle stops for mo re than 10 minutes.
• The engine is turned off.
1Automatic cancellation
Even though ACC with Low Speed Follow has been
automatically canceled, you can still resume the prior
set speed. Wait until the condition that caused ACC
with Low Speed Follow to cancel improves, then
press the –/SET button.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 476 ページ ２０２０年８月２５日　火曜日　午後２時６分

uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
478
Driving
• Each time you press the RES/+ or –/SET button, the vehicle speed is increased or
decreased by about 1 mph or 1.6 km/h accordingly.
• If you keep the RES/+ or –/SET button pressed, the vehicle speed increases or
decreases until you release it . This speed is then set.
To cancel cruise control, do any of the following:
• Press the CANCEL button.
• Press the MAIN button.
• Depress the brake pedal.
The CRUISE CONTROL indicator goes off.
■To Adjust the Vehicle Speed
■To Cancel1To Cancel
Resuming the prior set speed:
After cruise control has be en canceled, you can still
resume the prior set speed by pressing the RES/+
button while driving at a speed of at least 25 mph (40
km/h) or more.
You cannot set or resume in the following situations:
•When vehicle speed is less than 25 mph (40 km/h)•When the MAIN button is turned off.
At vehicle speeds of 22 m ph (35 km/h) or less, cruise
control canceled automatically.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 478 ページ ２０２０年８月２５日　火曜日　午後２時６分

Continued481
uuHonda Sensing ®u Lane Keeping Assist System (LKAS)
Driving
The system can be used when th e following conditions are met.
• The lane in which you are driving has detectable lane markers on both sides, and
your vehicle is in the center of the lane.
• The vehicle is traveling between about 45 and 90 mph (72 and 145 km/h).
• You are driving on a straight or slightly curved road.
• The turn signals are off.
• The brake pedal is not depressed.
• The wipers are not in high speed operation.
■How to activate the system
1.Press the MAIN button.
u The LKAS indicator comes on in the
driver information interface.
The system is ready to use.
2. Press the LKAS button.
u Lane outlines appear on the driver
information interface.
The system is activated.
■When the System can be Used1When the System can be Used
If the vehicle drifts toward either the left or right lane
line due to the system appl ying torque, turn off the
LKAS and have your vehi cle checked by a dealer.
MAIN Button
LKAS Button
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 481 ページ ２０２０年８月２５日　火曜日　午後２時６分