Honda Civic Hatchback (2018 year). Instruction - part 31

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When Driving

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

*

480

Driving

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How to activate the system

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

*

When the MAIN button is pressed, both ACC with 
LSF and the Lane Keeping Assist System (LKAS) are 
either turned on or off.

ACC with LSF may not work properly under certain 
conditions.

2 ACC with LSF Conditions and Limitations 

P. 486

When not using ACC with LSF: Turn off adaptive 
cruise by pressing the MAIN button. This also will 
turn off the Lane Keeping Assist System (LKAS).

Do not use ACC with LSF under the following 
conditions:

•

On roads with heavy traffic 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 with LSF 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 facilities with drive through access.

How to use

■

Press the MAIN button on 
the steering wheel.

ACC (green) is on in the instrument panel.
ACC with LSF is ready to use.

* Not available on all models

Continued

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Driving

When driving at about 25 mph (40 km/h) or above: Take your foot off the 
pedal and press the –/SET button when you reach the desired speed. The moment 
you release the button, the set speed is fixed, and ACC with LSF begins.
When driving slower than about 25 mph (40 km/h): If the vehicle is moving 
and the brake pedal is not depressed, pressing the button fixes the set speed to 25 
mph (40 km/h) regardless of current vehicle speed. If your vehicle is stationary and a 
vehicle is detected ahead, your vehicle speed can be set, even with the brake pedal 
depressed.

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To Set the Vehicle Speed

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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The indicators for the Adaptive Cruise Control (ACC) 
with Low Speed Follow (LSF), Road Departure 
Mitigation (RDM), Vehicle Stability Assist (VSA®) 
System, Vehicle Stability Assist (VSA®) OFF, low tire 
Pressure/TPMS

*

 and Collision Mitigation Braking 

System

TM

 (CMBS

TM

) may come on after reconnecting 

the battery. Drive a short distance at more than 12 
mph (20 km/h). The indicator should go off. If it does 
not, have your vehicle checked by a dealer.

On when ACC with LSF 
begins

Press and release

−/SET Button

* Not available on all models

482

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Driving

When ACC with LSF starts operating, the 
vehicle icon, interval bars and set speed 
appear on the driver information interface.

When you use ACC with LSF, 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.

Set Vehicle Speed

Set Vehicle Interval

Continued

483

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Driving

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There is a vehicle ahead

ACC with LSF monitors if a vehicle ahead of you enters the ACC with LSF range. If a 
vehicle is detected doing so, the ACC with LSF system maintains or decelerates your 
vehicle’s set speed in order to keep the vehicle’s set following-interval from the 
vehicle ahead.

2 To Set or Change Following-interval P. 489

When a vehicle whose speed is slower than 
your set speed is detected in front of you, your 
vehicle starts to slow down.

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When in Operation

1

When in Operation

If the vehicle ahead of you slows down abruptly, or if 
another vehicle cuts in front of you, the beeper 
sounds, a message appears on the driver information 
interface.
Depress the brake pedal, and keep an appropriate 
interval from the vehicle ahead.

Even if the interval between your vehicle and the 
vehicle detected ahead is short, ACC with LSF may 
start accelerating 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, gradually 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 
LSF detecting range. Change the ACC Forward 
Vehicle Detect Beep setting.

2 Customized Features P. 133, 348

Beep

ACC with LSF Range: 394 ft. (120 m)

A vehicle icon appears on the 
driver information interface

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Driving

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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 with LSF accelerates your 
vehicle to the set speed, and then maintains it.

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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 LSF range.
ACC with LSF stays on unless you cancel it. Once you release the accelerator pedal, 
the system resumes an appropriate speed for keeping the following-interval while a 
vehicle ahead is within the ACC with LSF range.
There are times when the vehicle speed will decrease when the accelerator pedal is 
lightly applied.

1

When in Operation

Limitations
You may need to use the brake to maintain a safe 
interval when using ACC with LSF. Additionally, ACC 
with LSF may not work properly under certain 
conditions.

2 ACC with LSF Conditions and Limitations 

P. 486

3

WARNING

Exiting a vehicle that has been stopped 
while the ACC with LSF system is operating 
can result in the vehicle moving without 
operator control.

A vehicle that moves without operator 
control can cause a crash, resulting in 
serious injury or death.

Never exit a vehicle when the vehicle is 
stopped by ACC with LSF.

25

A vehicle icon with dotted-line 
contour appears on the driver 
information interface

485

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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A vehicle detected ahead is within ACC with LSF range and slows to a stop

Your vehicle also stops, automatically. The 
Stopped message appears on the driver 
information interface.
When the vehicle ahead of you starts again, 
the vehicle icon on the driver information 
interface blinks. If you press the RES/+ or 
–/SET button, or depress the accelerator 
pedal, ACC with LSF operates again within the 
prior set speed.
If no vehicle is ahead of you before you 
resume driving, depress the accelerator pedal 
and ACC with LSF will operate again within 
the prior set speed.

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Driving

The system may automatically shut off and the ACC indicator will come on under 
certain conditions. Some examples of these conditions are listed below. Other 
conditions may reduce some of the ACC functions.

2 Front Sensor Camera

*

 P. 477

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Environmental conditions

Driving in bad weather (rain, fog, snow, etc.).

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Roadway conditions

Driving on a snowy or wet roadway (obscured lane marking, vehicle tracks, reflected 
lights, road spray, high contrast).

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Vehicle conditions

• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• An abnormal tire or wheel condition (Wrong sized, varied size or construction, 

improperly inflated, compact 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.

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ACC with LSF Conditions and Limitations

1

ACC with LSF Conditions and Limitations

The radar sensor for ACC with LSF is shared with the 
collision mitigation braking system

TM

 (CMBS

TM

).

2 Collision Mitigation Braking System

TM

 

(CMBS

TM

)

*

 P. 541

You can read about handling information for the 
camera equipped with this system.

2 Front Sensor Camera

*

 P. 477

Always keep the radar sensor cover clean.

Never use chemical solvents or polishing powder for 
cleaning the sensor cover. Clean it with water or a 
mild detergent.

Do not put a sticker on the radar sensor cover or 
replace the radar sensor cover.

If you need the radar sensor to be repaired, or 
removed, or the radar sensor 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).

* Not available on all models

Continued

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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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 detect a vehicle in front of you.

• The speed difference between your vehicle 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.
• 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.

1

ACC with LSF Conditions and Limitations

If the front of the vehicle is impacted in any of the 
following situations, the radar sensor may not work 
properly. Have your vehicle checked by a dealer:

•

The vehicle mounted onto 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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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Driving

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 press and hold the RES/+ or –/SET button, the vehicle speed increases or 

decreases by about 5 mph or 5 km/h accordingly.

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To Adjust the Vehicle Speed

1

To Adjust the Vehicle Speed

If a vehicle detected ahead is going at a speed slower 
than your increased set speed, ACC with LSF may not 
accelerate your vehicle. This is to maintain the set 
interval between your vehicle and the vehicle ahead.

You can switch the displayed set speed 
measurements on the driver information interface 
between mph and km/h.

2 Customized Features P. 133, 348

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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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Press the   (interval) button to change the 
ACC with LSF following-interval.
Each time you press the 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.

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To Set or Change Following-interval

Interval Button

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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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.

When your vehicle stops automatically because a vehicle detected ahead of you has 
stopped, the interval between the two vehicles will vary based on the ACC with LSF 
interval setting.

Following-interval

When the Set Speed is:

50 mph (80 km/h)

65 mph (104 km/h)

Short

83 feet

25 meters

1.1 sec

100 feet

31 meters

1.1 sec

Middle

111 feet

34 meters

1.5 sec

139 feet

43 meters

1.5 sec

Long

154 feet

47 meters

2.1 sec

200 feet

61 meters

2.1 sec

Extra 
Long

207 feet

63 meters

2.9 sec

272 feet

83 meters

2.9 sec

Continued

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Driving

To cancel ACC with LSF, do any of the 
following:
• Press the CANCEL button.
• Press the MAIN button.

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ACC with LSF indicator goes off.

• Depress the brake pedal.

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When the LSF function has stopped the 
vehicle, you cannot cancel ACC with LSF 
by depressing the brake pedal.

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To Cancel

1

To Cancel

Resuming the prior set speed: After you have 
canceled ACC with LSF, 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 LSF 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

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Automatic cancellation

The beeper sounds and a message appears on the driver information interface when 
ACC with LSF is automatically canceled. Any of these conditions may cause the ACC 
with LSF to automatically cancel:
• Bad weather (rain, fog, snow, etc.)
• When the radar sensor in the lower bumper next to the fog light

*

 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 LSF 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 enclosed space, such as tunnel.

The ACC with LSF automatic cancellation can be also triggered by the following 
causes. In these cases, the parking brake will be automatically applied.
• The driver’s seat belt is unfastened when the vehicle is stationary.
• The vehicle stops for more than 10 minutes.
• The engine is turned off.

1

Automatic cancellation

Even though ACC with LSF has been automatically 
canceled, you can still resume the prior set speed. 
Wait until the condition that caused ACC with LSF to 
cancel improves, then press the –/SET button.

* Not available on all models

Continued

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

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Driving

Press and hold the   (interval) button for one 
second. Cruise Mode Selected appears on 
the driver information interface for two 
seconds, and then the mode switches to 
Cruise.
To switch back to ACC with LSF, press and 
hold the   button again for one second. ACC 
Mode Selected appears on the driver 
information interface for two seconds.

■

When to use

Desired speed in a range above roughly 25 mph (40 km/h) ~.

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 cruise control 
begins. The CRUISE CONTROL indicator comes on.

• 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 the RES/+ or –/SET button pressed, the vehicle speed increases or 

decreases until you release it. This speed is then set.

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To Switch ACC with LSF to Cruise Control

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To Switch ACC with LSF to Cruise Control

Always be aware which mode you are in. When you 
are driving in Cruise mode, the system will not assist 
you to maintain a following-interval from a vehicle 
ahead of you.

You can switch the displayed set speed 
measurements on the driver information interface 
between mph and km/h.

2 Customized Features P. 133, 348

ACC with 
LSF ON

Cruise 
Control ON

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To Set the Vehicle Speed

■

To Adjust the Vehicle Speed

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Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)

*

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Driving

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 Cancel

1

To Cancel

Resuming the prior set speed:
After cruise control has been 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 mph (35 km/h) or less, cruise 
control canceled automatically.

495

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Adaptive Cruise Control (ACC)

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Adaptive Cruise Control (ACC)

*

Helps maintain a constant vehicle speed and a set following-interval behind a vehicle 
detected ahead of yours, without you having to keep your foot on the brake or the 
accelerator.
When ACC slows your vehicle by applying the brakes, your vehicle’s brake lights will 
illuminate.

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 between your vehicle and other vehicles.

3

WARNING

Improper use of ACC can lead to a crash.

Use ACC only when traveling on open 
highways in good weather.

3

WARNING

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 control: Desired speed in a range above 
roughly 25 mph (40 km/h) ~

The radar sensor is in 
the lower bumper 
next to the fog light.
Be careful not to have 
the radar sensor cover 
strongly impacted.

The camera is 
located behind 
the rearview 
mirror.

* Not available on all models