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Honda Civic (2019 year). Instruction - part 31

480

Honda Sensing®

Collision Mitigation Braking System

(CMBS

)

Driving

• When there is a group of people in front of your vehicle walking together side by

side.

• Surrounding conditions or belongings of the pedestrian alter the pedestrian’s

shape, preventing the system from recognizing that the person is a pedestrian.

• When the pedestrian is shorter than about 3.3 feet (1 meter) or taller than about

6.6 feet (2 meters) in height.

• When a pedestrian blends in with the background.
• When a pedestrian is bent over or squatting, or when their hands are raised or

they are running.

• When several pedestrians are walking ahead in a group.
• When the camera cannot correctly identify that a pedestrian is present due to an

unusual shape (holding luggage, body position, size).

■

Automatic shutoff

The CMBS

may automatically shut itself off and the CMBS

indicator comes and

stays on when:
• The temperature inside the system is high.
• You drive off-road or on a mountain road, or curved and winding road for an

extended period.

• An abnormal tire condition is detected (wrong tire size, flat tire, etc.).
• The camera behind the rearview mirror, or the area around the camera, including

the windshield, gets dirty.

Once the conditions that caused the CMBS

to shut off improve or are addressed

(e.g., cleaning), the system comes back on.

Limitations applicable to pedestrian detection only

481

Honda Sensing®

Collision Mitigation Braking System

(CMBS

)

Continued

Driving

The CMBS

may activate even when you are aware of a vehicle ahead of you, or

when there is no vehicle ahead. Some examples of this are:

■

When Passing

Your vehicle approaches another vehicle ahead of you and you change lanes to pass.

■

At an intersection

Your vehicle approaches or passes another vehicle that is making a left or right turn.

■

With Little Chance of a Collision

482

Honda Sensing®

Collision Mitigation Braking System

(CMBS

)

Driving

■

On a curve

When driving through curves, your vehicle comes to a point where an oncoming
vehicle is right in front of you.

■

Through a low bridge at high speed

You drive under a low or narrow bridge at high speed.

■

Speed bumps, road work sites, train tracks, roadside objects, etc.

You drive over speed bumps, steel road plates, etc., or your vehicle approaches train
tracks or roadside objects (such as a traffic sign and guard rail) on a curve or, when
parking, stationary vehicles and walls.

483

Honda Sensing®

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

Continued

Driving

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

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

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

Important Reminder
As with any system, there are limits to ACC with LSF.
Use the brake pedal whenever necessary, and always
keep a safe interval between your vehicle and other
vehicles.

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

(CMBS

2 Collision Mitigation Braking System

(CMBS

) P. 473

WARNING

Improper use of ACC with LSF can lead
to a crash.

Use ACC with LSF only when driving on
expressways or freeways and in good
weather conditions.

WARNING

ACC with LSF has limited braking
capability and may not stop your vehicle
in time to avoid a collision with a vehicle
that quickly stops in front of you.

Always be prepared to apply the brake
pedal if the conditions require.

When to use

■

Vehicle speed for ACC with LSF: A vehicle is detected ahead within ACC with
LSF range – ACC with LSF operates at speeds up to 90 mph (145 km/h).
No vehicle is detected within ACC with LSF range – ACC with LSF operates at
the speed of 25 mph (40 km/h) or above.

■

Shift position for ACC with LSF: In

(

D or

(

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

Honda Sensing®

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

484

Driving

■

How to activate the system

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

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

2 Front Sensor Camera P. 526

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. 489

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

485

Honda Sensing®

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

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
about 25 mph (40 km/h) regardless of current vehicle speed. If the vehicle is
stationary, you can set the vehicle speed even with the brake pedal depressed.

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.

■

To Set the Vehicle Speed

To Set the Vehicle Speed

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

(CMBS

) may come on after re-connecting

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

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. 124, 337

On when ACC with LSF
begins

Press and release

−/SET button

Set Vehicle Speed

Set Vehicle Interval

* Not available on all models

Honda Sensing®

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

486

Driving

■

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. 493

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 Operation

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.

Beep

ACC with LSF Range: 394 ft. (120 m)

A vehicle icon appears on the
driver information interface

Continued

487

Honda Sensing®

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

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 LSF 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 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.

When in Operation

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. 124, 337

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. 489

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

Honda Sensing®

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

488

Driving

■

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.

When in Operation

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.

Continued

489

Honda Sensing®

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

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. 526

■

Environmental conditions

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

■

Roadway conditions

• Driving on a snowy or wet roadway (obscured 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 (Wrong size, 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 is dirty.
• The vehicle is tilted due to a heavy load or suspension modifications.
• When tire chains are installed.

■

ACC with LSF Conditions and Limitations

ACC with LSF Conditions and Limitations

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).

490

Honda Sensing®

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

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 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.

491

Honda Sensing®

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

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.

Honda Sensing®

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

492

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 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 Speed

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.

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

493

Honda Sensing®

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

Continued

Driving

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.

■

To Set or Change Following-Interval

Interval Button

494

Honda Sensing®

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

Driving

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

81.0 feet

24.7 meters

1.1 sec

103.3 feet

31.5 meters

1.1 sec

Middle

112.2 feet

34.2 meters

1.5 sec

142.4 feet

43.4 meters

1.5 sec

Long

153.5 feet

46.8 meters

2.1 sec

199.4 feet

60.8 meters

2.1 sec

Extra
Long

208.3 feet

63.5 meters

2.9 sec

273.6 feet

83.4 meters

2.9 sec

Continued

495

Honda Sensing®

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

Driving

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

ACC with LSF indicator goes off.

• Depress the brake pedal.

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

■

To Cancel

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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