Honda Civic Hatchback (2018 year). Instruction

When Driving

Adaptive Cruise Control (ACC)

496

Driving

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How to activate the system

Adaptive Cruise Control (ACC)

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

ACC may not work properly under certain conditions.

2 ACC Conditions and Limitations P. 500

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 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 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.

When the engine speed slows down, try to
downshift. You can maintain the set speed 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

Continued

497

When Driving

Adaptive Cruise Control (ACC)

Driving

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.

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.

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To Set the Vehicle Speed

Adaptive Cruise Control (ACC)

The indicators for the Adaptive Cruise Control (ACC),
Road Departure Mitigation (RDM), Vehicle Stability
Assist (VSA®) System, Vehicle Stability Assist (VSA®)
OFF and Collision Mitigation Braking System

(CMBS

) 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 begins

Press and release

−/SET Button

Set Vehicle Speed

Set Vehicle Interval

* Not available on all models

When Driving

Adaptive Cruise Control (ACC)

498

Driving

■

There is a vehicle ahead

ACC monitors if a vehicle ahead of you enters the ACC range. If a vehicle is detected
doing so, the ACC 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. 503

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

Even if the interval between your vehicle and the
vehicle detected ahead is short, ACC 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
detecting range. Change the ACC Forward Vehicle
Detect Beep setting.

2 Customized Features P. 133, 348

Beep

ACC Range: 394 ft. (120 m)

A vehicle icon appears on the
driver information interface

Continued

499

When Driving

Adaptive Cruise Control (ACC)

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 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 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.

When in Operation

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. 500

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

When Driving

Adaptive Cruise Control (ACC)

500

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 Conditions and Limitations

ACC Conditions and Limitations

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

(CMBS

2 Collision Mitigation Braking System

(CMBS

)

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

501

When Driving

Adaptive Cruise Control (ACC)

Driving

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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.

ACC 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.

When Driving

Adaptive Cruise Control (ACC)

502

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.

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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 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

503

When Driving

Adaptive Cruise Control (ACC)

Continued

Driving

Press the (interval) button to change the
ACC 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

504

When Driving

Adaptive Cruise Control (ACC)

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.

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

110 feet

33 meters

1.5 sec

137 feet

42 meters

1.5 sec

Long

154 feet

47 meters

2.1 sec

200 feet

61 meters

2.1 sec

Extra
Long

213 feet

65 meters

2.9 sec

282 feet

86 meters

3.0 sec

Continued

505

When Driving

Adaptive Cruise Control (ACC)

Driving

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

ACC indicator goes off.

• Depress the brake pedal.
• Depress the clutch pedal for five seconds or

more.

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To Cancel

To Cancel

Resuming the prior set speed: After you have
canceled ACC, you can resume the prior set speed
while it is still displayed. Press the RES/+ button
when driving at a speed of at least 25 mph (40 km/h)
or more.

The set speed cannot be set or resumed when ACC
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

When Driving

Adaptive Cruise Control (ACC)

506

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 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

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 enclosed 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.

Automatic 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.

Continued

507

When Driving

Adaptive Cruise Control (ACC)

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, press and hold the
button again for one second. ACC Mode
Selected appears on the driver information
interface for two seconds.

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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 to Cruise Control

To Switch ACC 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 ON

Cruise
Control ON

■

To Set the Vehicle Speed

■

To Adjust the Vehicle Speed

When Driving

Adaptive Cruise Control (ACC)

508

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

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.

509

When Driving

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. 133, 348

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.

Braking is applied only when the lane
markings are solid continuous lines.

The system cancels assisting operations when you turn the steering wheel to avoid
crossing over detected lane markings.

If the system operates several times without detecting driver response, the system
beeps to alert you.

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How the System Works

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 lane markings or lane or
roadway 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.

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

2 Front Sensor Camera

P. 477

The RDM system may not work properly or may work
improperly under the certain conditions:

2 RDM Conditions and Limitations P. 511

There are times when you may not notice RDM
functions due to your operation of the vehicle, or
road surface conditions.

* Not available on all models

When Driving

Road Departure Mitigation (RDM) System

510

Driving

The system becomes ready to start searching for lane markings when all the
following conditions are met:
• The vehicle is traveling between about 45 and 90 mph (72 and 145 km/h).
• The vehicle is on a straight or slightly curved road.
• The turn signals are off.
• The brake pedal is not depressed.
• The wipers are not in continuous operation.
• The vehicle is not accelerating or braking, and the steering wheel is not being

turned.

• The system makes a determination that the driver is not actively accelerating,

braking or steering.

Press the RDM button to turn the system on
and off.

The indicator in the button comes on and
the message appears on the driver
information interface when the system is
on.

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How the System Activates

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RDM On and Off

How the System Activates

The RDM system may automatically shut off and the

indicator comes and stays on.

2 Indicators P. 78

RDM system function can be impacted when the
vehicle is:

•

Not driven within a traffic lane.

•

Driven on the inside edge of a curve, or outside of
a lane.

•

Driven in a narrow lane.

RDM On and Off

When you have selected Warning Only from the
customized options using the audio/information
screen, the system does not operate the steering
wheel and braking.

The indicators for the Adaptive Cruise Control
(ACC)

, 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 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.

RDM Button

Indicator

* Not available on all models

511

When Driving

Road Departure Mitigation (RDM) System

Continued

Driving

The system may not properly detect lane markings and the position of your vehicle
under certain conditions. Some examples of these conditions are listed below.

■

Environmental conditions

• Driving in bad weather (rain, fog, snow, etc.).
• Sudden changes between light and dark, such as an entrance or exit of a tunnel.
• There is little contrast between lane lines and the roadway surface.
• Driving into low sunlight (e.g., at dawn or dusk).
• Strong light is reflected onto the roadway.
• Driving in the shadows of trees, buildings, etc.
• Shadows of adjacent objects are parallel to lane markings.
• Roadway objects or structures are misinterpreted as lane markers.
• Reflections on the interior of the windshield.
• Driving at night or in a dark condition such as a tunnel.

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RDM Conditions and Limitations

Honda Civic Hatchback (2018 year). Instruction - part 32