HONDA CIVIC HATCHBACK 2021 Owner's Manual (in English)

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uuHonda Sensing ®u Adaptive Cruise Control (ACC)*
Driving
■How to activate the system1Adaptive Cruise Control (ACC)*
The radar sensor for ACC is shared with the collision
mitigation braking systemTM (CMBSTM).
2 Collision Mitigation Braking SystemTM
(CMBSTM) P. 491
ACC may not work properly under certain conditions.
2 ACC Conditions and Limitations P. 523
When the engine speed slows down, try to
downshift. You can maintain the set speed if you
change gear within five seconds.
When not using ACC: Turn off adaptive cruise by
pressing the MAIN button. This also will turn off the
Lane Keeping Assist System (LKAS).
When the MAIN button is pressed, both ACC and
the Lane Keeping Assist System (LKAS) are either
turned on or off.
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.
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
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Take your foot off the pedal and press the –/SET button when you reach the desired
speed.
The moment you release the –/SET button,
the set speed is fixed, and ACC begins. u When ACC starts operating, the vehicle
icon, interval bars and set speed appear
on the driver information interface.
When you use ACC, Straight Driving Assist (a
feature of the Electric Power Steering system)
is activated.
By enabling the steering system to
automatically compensate for natural steering
pull, Straight Driving Assist makes it easier for
you to keep your vehicle in a straight line.
■To Set the Vehicle Speed1 Adaptive Cruise Control (ACC)*
You can switch the displayed set speed
measurements on the driver information interface or
audio/information screen between mph and km/h.
2 Customized Features P. 134, 350
The indicators for the Adaptive Cruise Control (ACC),
Road Departure Miti gation (RDM), Vehicle Stability
Assist
TM (VSA ®) System, Vehicle Stability AssistTM
(VSA ®) OFF and Collision Miti gation Braking SystemTM
(CMBSTM) may come on afte r reconnecting the
battery. Drive a short distance at more than 12 mph
(20 km/h). The indicator shoul d go off. If it does not,
have your vehicle ch ecked by a dealer.
When you completely disable VSA® , you cannot use
ACC.
2.0 L engine models
On when ACC begins
Press and release−/SET
Button
Set Vehicle Speed
Set Vehicle Interval
* Not available on all models
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uuHonda Sensing ®u Adaptive Cruise Control (ACC)*
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■There is a vehicle ahead
ACC monitors if a vehicle ahead of you ente rs the ACC range. If a vehicle is detected
doing so, the ACC system maintains or decele rates your vehicle’s set speed in order
to keep the vehicle’s set followi ng-interval from the vehicle ahead.
2To Set or Change Following-interval P. 527
When a vehicle whose speed is slower than
your set speed is detected in front of you, your
vehicle starts to slow down.
■When in Operation1 When in Operation
If the vehicle detected ahead of you slows down
abruptly, or if a nother vehicle is de tected cutting in
front of you, the beep er sounds, and a message
appears on the driver information interface.
Depress the brake pedal, and keep an appropriate
interval from the vehicle ahead.
Beep
ACC Range: 394 ft. (120 m)
A vehicle icon appears on the
driver information interface
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■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 accelerates your vehicle to
the set speed, and then maintains it.
■When you depress the accelerator pedal
You can temporarily increase th e vehicle speed. In this case, there is no audible or
visual alert even if a ve hicle is in the ACC range.
ACC stays on unless you cancel it. Once you release the accelerator pedal, the
system resumes the set speed.
There are times when the vehicle speed will decrease when the accelerator pedal is
lightly applied.
1 When in Operation
Even if the interval betw een your vehicle and the
vehicle detected ahead is short, ACC may start
accelerating your vehi cle 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
detecting range. Change the ACC Forward Vehicle
Detect Beep setting.
2 Customized Features P. 134, 350
Limitations
You may need to use the brake to maintain a safe
interval when using ACC. Additionally, ACC may not
work properly under certain conditions.
2 ACC Conditions and Limitations P. 523
A vehicle icon with dotted-line
contour appears on the driver
information interface
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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. 546
■Environmental conditions
Driving in bad weather (r ain, fog, snow, etc.).
■Roadway conditions
Driving on a snowy or wet roadway (obscure d lane marking, vehicle tracks, reflected
lights, road spra y, 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 lower bumper next to the fog light 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).
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■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.1ACC Conditions and Limitations
If the front of the vehicle is impacted in any of the
following situations, the ra dar sensor may not work
properly. Have your vehi cle checked by a dealer:
•The vehicle impacted a bump, curb, chock,
embankment, etc.
•You drive the vehicle where the water is deep.
•Your vehicle has a frontal collision.
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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.
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Increase or decrease the vehicle speed using the RES/+ or –/SET button on the
steering wheel.
• Each time you press the RES/+ or –/SET button, the vehicle speed is increased or
decreased by about 1 mph or 1 km/h accordingly.
• If you keep pressing the RES/+ or –/SET button, the vehicle speed increases or
decreases by about 5 mph or 5 km/h accordingly.
■To Adjust the Vehicle Speed1 To Adjust the Vehicle Speed
If a vehicle detected ahead is going at a speed slower
than your increased set speed, ACC may not
accelerate your vehicle. This is to maintain the set
interval between your vehi cle and the vehicle ahead.
You can switch the displayed set speed
measurements on the driver information interface or
the audio/information screen between mph and
km/h. 2 Customized Features P. 134, 350
When you depress the accelerator pedal and then
push and release the –/SET button, the current speed
of the vehicle is set.
To increase speed
To decrease speed
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Driving
Press the (interval) button to change the
ACC following-interval.
Each time you press th e button, the following-
interval (the interval behind a vehicle detected
ahead of you) setting cycles through extra
long, long, middle, and short following-
intervals.
Determine the most appropriate following-
interval setting based on your specific driving
conditions. Be sure to adhere to any
following-interval requirements set by local
regulation.
■To Set or Change Following-interval
Interval Button
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uuHonda Sensing ®u Adaptive Cruise Control (ACC)*
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The higher your vehicle’s following-speed is, the longer the short, middle, long or
extra long following-interval becomes. See the following examples for your
reference.
Following-intervalWhen the Set Speed is:
50 mph (80 km/h)65 mph (104 km/h)
Short
83.3 feet
25.4 meters
1.1 sec100.4 feet
30.6 meters
1.1 sec
Middle
109.6 feet
33.4 meters
1.5 sec137.4 feet
41.9 meters
1.5 sec
Long
153.8 feet
46.9 meters 2.1 sec199.8 feet
60.9 meters 2.1 sec
Extra
Long213.5 feet
65.1 meters 2.9 sec282.7 feet
86.2 meters 2.9 sec
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