Honda Accord (2019 year). Manual - part 35

544

Honda Sensing®

Adaptive Cruise Control (ACC)

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

545

Honda Sensing®

Adaptive Cruise Control (ACC)

Continued

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

84 feet

26 meters

1.1 sec

102 feet

31 meters

1.1 sec

Middle

111 feet

34 meters

1.5 sec

139 feet

43 meters

1.5 sec

Long

155 feet

48 meters

2.1 sec

202 feet

62 meters

2.1 sec

Extra
Long

215 feet

66 meters

3.0 sec

282 feet

86 meters

3.0 sec

Honda Sensing®

Adaptive Cruise Control (ACC)

546

Driving

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

The ACC indicator (green) goes off.

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

more.

■

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

Continued

547

Honda Sensing®

Adaptive Cruise Control (ACC)

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 at the lower part of the front 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

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.

In the following cases, a buzzer sounds, ACC is deactivated, and the Cruise
Cancelled: Slope Too Steep. Watch Downhill Speed message appears in the
driver information interface.
• The vehicle has repeatedly applied the brakes to maintain the set speed (for

example, you are descending a long slope).

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.

Honda Sensing®

Adaptive Cruise Control (ACC)

548

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.

■

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.

When you use cruise control, 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 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 or
audio/information screen between mph and km/h.

2 Speed Unit P. 149
2 Customized Features P. 381

ACC ON

Cruise
Control ON

■

To Set the Vehicle Speed

549

Honda Sensing®

Adaptive Cruise Control (ACC)

Driving

• Each time you press the RES/+ or SET/– button, the vehicle speed is increased or

decreased by about 1 mph (1.6 km/h).

• 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.
• Depress the clutch pedal for five seconds or more.
The CRUISE CONTROL indicator goes off.

■

To Adjust the Vehicle Speed

■

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.

550

Honda Sensing®

Lane Keeping Assist System (LKAS)

Driving

Lane Keeping Assist System (LKAS)

Provides steering input to help keep the vehicle in the middle of a detected lane and
provides tactile and visual alerts if the vehicle is detected drifting out of its lane.

Lane Keeping Assist System (LKAS)

Important Safety Reminders
The LKAS is for your convenience only. It is not a
substitute for your vehicle control. The system does
not work if you take your hands off the steering
wheel or fail to steer the vehicle.

2 Driver Information Interface Warning and

Information Messages P. 105

Do not place objects on the instrument panel.
Objects may reflect on the windshield and prevent
correct detection of the traffic lanes.

The LKAS only alerts you when lane drift is detected
without a turn signal in use. The LKAS may not detect
all lane markings or lane 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.

The LKAS is convenient when it is used on freeways.

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

2 LKAS Conditions and Limitations P. 555

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

2 Front Sensor Camera P. 568

When you operate the turn signals to change lanes, the system is suspended, and
resumes after the signals are off.
If you make a lane change without operating the turn signals, the LKAS alerts
activate, and torque is applied to the steering.

■

Front Sensor Camera

Monitors the lane
lines.

■

Tactile and visual alerts

Rapid vibrations on the steering
wheel and a warning display alert
you that the vehicle is drifting out of
a detected lane.

■

Steering input assist

The system applies torque to the steering to keep the vehicle between the left and
right lane lines. The applied torque becomes stronger as the vehicle gets closer to
either of the lane lines.

Continued

551

Honda Sensing®

Lane Keeping Assist System (LKAS)

Driving

Provides assistance to keep the vehicle in the center of the lane. When the vehicle
nears a white or yellow line, steering force of the electric power steering will become
stronger.

When the vehicle enters the warning area, the LKAS alerts you with slight steering
wheel vibration as well as a warning display.

■

Lane Keep Support Function

Lane Keeping Assist System (LKAS)

The LKAS may not function as designed while driving
in frequent stop and go traffic, or on roads with
sharp curves.

When it fails to detect lanes, the system will
temporarily be canceled. When a lane is detected, the
system will recover automatically.

■

Lane Departure Warning Function

Warning Area

Honda Sensing®

Lane Keeping Assist System (LKAS)

552

Driving

The system can be used when the 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 speed is between 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.

The LKAS is on in the driver information
interface.
The system is ready to use.

2. Press the LKAS button.

Lane outlines appear on the driver
information interface.
The system is activated.

■

When the System can be Used

When the System can be Used

If the vehicle drifts toward either left or right lane line
due to the system applying torque, turn off the LKAS
and have your vehicle checked by a dealer.

MAIN Button

LKAS Button

Continued

553

Honda Sensing®

Lane Keeping Assist System (LKAS)

Driving

3. Keep your vehicle near the center of the

lane while driving.

The dotted outer lines change to solid
ones once the system starts operating
after detecting the left and right lane
markings.

To cancel the LKAS:
Press the MAIN or LKAS button.

The LKAS is turned off every time you stop the
engine, even if you turned it on the last time
you drove the vehicle.

■

To cancel

To cancel

Pressing the MAIN button also turns ACC with LSF
on and off.

Pressing the MAIN button also turns ACC on and off.

Models with ACC with LSF

Models with ACC

MAIN Button

LKAS
Button

554

Honda Sensing®

Lane Keeping Assist System (LKAS)

Driving

■

The system operation is suspended if
you:

• Set the wipers to HI.

Turning the wipers off or setting it to LO
resumes the LKAS.

• Decrease the vehicle speed to about 40 mph

(64 km/h) or less.

Increasing the vehicle speed to about
45 mph (72 km/h) or more resumes the
LKAS.

• Depress the brake pedal.

The LKAS resumes and starts detecting
the lane lines again once you release the
brake pedal.

• Set the wiper switch to AUTO and the

wipers operate at high speed.

The LKAS resumes when the wipers stop
or operate at low speed.

■

The LKAS may automatically be suspended when:

• The system fails to detect lane lines.
• The steering wheel is quickly turned.
• You fail to steer the vehicle.
• Driving through a sharp curve.
• Driving at a speed in excess of approximately 90 mph (145 km/h).
Once these conditions no longer exist, the LKAS automatically resumes.

When the LKAS is suspended,
the lane lines on the driver
information interface change to
contour lines, and the beeper
sounds (if activated).

Models with automatic intermittent wipers

555

Honda Sensing®

Lane Keeping Assist System (LKAS)

Continued

Driving

■

The LKAS may automatically be canceled when:

• The camera temperature gets extremely high or low.
• The camera behind the rearview mirror, or the area around the camera, including

the windshield, gets dirty.

• The ABS or VSA® system engages.
The beeper sounds if the LKAS is automatically canceled.

The system may not detect lane markings and therefore may not keep the vehicle in
the middle of a lane under certain conditions, including the following:

■

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.

■

LKAS Conditions and Limitations

556

Honda Sensing®

Lane Keeping Assist System (LKAS)

Driving

■

Roadway conditions

• Driving on a snowy or wet roadway (obscured lane marking, vehicle tracks,

reflected lights, road spray, high contrast).

• Driving on a road with temporary lane markings.
• Faint, multiple, or varied lane markings are visible on the roadway due to road

repairs or old lane markings.

• The roadway has merging, split, or crossing lines (e.g., such as at an intersection

or crosswalk).

• The lane markings are extremely narrow, wide, or changing.

• The vehicle in front of you is driving near the lane lines.
• The road is hilly or the vehicle is approaching the crest of a hill.
• Driving on rough or unpaved roads, or over bumpy surfaces.

Faded lines

Duplicate lines

Tire tracks

Very wide or narrow traffic lane

557

Honda Sensing®

Lane Keeping Assist System (LKAS)

Driving

• When objects on the road (curb, guard rail, pylons, etc.) are recognized as white

lines (or yellow lines).

• Driving on roads with double lines.

■

Vehicle conditions

• Headlight lenses are dirty or the headlights are not properly adjusted.
• The outside of the windshield is streaked or blocked by dirt, mud, leaves, wet

snow, etc.

• The inside of the windshield is fogged.
• The camera temperature gets too high.
• An abnormal tire or wheel condition (wrong sized, varied size or construction,

improperly inflated, compact spare tire, etc.).

• The vehicle is tilted due to a heavy load or suspension modifications.
• The vehicle is towing a trailer

Lane void of lines at junction

* Not available on all models

558

Honda Sensing®

Road Departure Mitigation (RDM) System

Driving

Road Departure Mitigation (RDM) System

Alerts and helps to assist you when the system determines 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. 370 , 381

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.

■

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. 568

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

2 RDM Conditions and Limitations P. 560

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

In the following case, a beeper sounds, a message
related to the ACC with LSF

/ACC

appears on the

driver information interface, and the braking function
controlled by the RDM system is canceled.

•

The vehicle has repeatedly applied the brakes to
maintain the set speed (for example, you are
descending a long slope).

* Not available on all models

Continued

559

Honda Sensing®

Road Departure Mitigation (RDM) System

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 high speed 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.

■

How the System Activates

Road Departure Mitigation (RDM) System

If LKAS is off and you have selected Narrow from the
customized options using the audio/information
screen, the message below will appear in case the
system determines a possibility of your vehicle
crossing over detected lane markings.

2 Customized Features P. 370, 381

How the System Activates

The RDM system may automatically shut off and the
safety support indicator (amber) 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.

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