Content .. 31 32 33 34 ..

Honda Accord (2019 year). Manual - part 33

512

Honda Sensing®

Collision Mitigation Braking System

(CMBS

)

Driving

The system has three alert stages for a possible collision. However, depending on circumstances, the CMBS

may not go through all of

the stages before initiating the last stage.

■

Collision Alert Stages

Distance between vehicles

CMBS

The radar sensor detects a vehicle

Audible & Visual WARNINGS

Braking

Stage

one

There is a risk of a collision with the
vehicle ahead of you.

When in Long, visual and audible alerts come
on at a longer distance from a vehicle ahead
than in Normal setting, and in Short, at a
shorter distance than in Normal.

—

Stage

two

The risk of a collision has increased,
time to respond is reduced.

Visual and audible alerts.

Lightly

applied

Stage

three

The CMBS

determines that a

collision is unavoidable.

Forcefully

applied

Your Vehicle

Vehicle
Ahead

Normal

Short

Long

Your
Vehicle

Vehicle
Ahead

Your
Vehicle

Vehicle
Ahead

Continued

513

Honda Sensing®

Collision Mitigation Braking System

(CMBS

)

Driving

When you turn the CMBS

on and off, do the

following.
1. Press the safety support switch.
2. Roll the left selector wheel to the

symbol and push it.

The message appears on the driver
information interface when the system
becomes on or off.

The CMBS

is turned on every time you start

the engine, even if you turned it off the last
time you drove the vehicle.

■

CMBS

On and Off

Collision Mitigation Braking System

(CMBS

)

The CMBS

may automatically shut off, and the

safety support indicator (amber) will come and stay
on under certain conditions:

2 CMBS

Conditions and Limitations P. 514

When the CMBS

is activated, it will continue to

operate even if the accelerator pedal is partially
depressed. However, it will be canceled if the
accelerator pedal is deeply depressed.

The Vehicle Stability Assist® (VSA®) system, Vehicle
Stability Assist® (VSA®) OFF, adaptive cruise control
(ACC) with low speed follow (LSF)

, adaptive cruise

control (ACC)

, safety support and low tire pressure/

TPMS indicators may come on in amber along with a
message in the driver information interface when you
set the power mode to ON after re-connecting a
battery.
Drive a short distance at more than 12 mph (20 km/h).
Each indicator should go off. If any do not, have your
vehicle checked by a dealer.

Left Selector Wheel

Safety Support Switch

* Not available on all models

Honda Sensing®

Collision Mitigation Braking System

(CMBS

)

514

Driving

The system may automatically shut off and the safety support indicator (amber) will
come on under certain conditions. Some examples of these conditions are listed
below. Other conditions may reduce some of the CMBS

functions.

2 Front Sensor Camera P. 568

■

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 objects and the background.
• 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.
• Roadway objects or structures are misinterpreted as vehicles and pedestrians.
• Reflections on the interior of the windshield.
• Driving at night or in a dark condition such as a tunnel.

■

Roadway conditions

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

reflected lights, road spray, high contrast).

• Driving on curvy, winding, or undulating roads.
• The road is hilly or the vehicle is approaching the crest of a hill.

■

CMBS

Conditions and Limitations

Collision Mitigation Braking System

(CMBS

)

Have your vehicle checked by a dealer if you find any
unusual behavior of the system (e.g., the warning
message appears too frequently).

515

Honda Sensing®

Collision Mitigation Braking System

(CMBS

)

Continued

Driving

■

Vehicle conditions

• Headlight lenses are dirty or the headlights are not properly adjusted.
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• The inside of the windshield is fogged.
• An abnormal tire or wheel condition (wrong sized, varied size or construction,

improperly inflated, compact spare tire, etc.).

• When tire chains

are installed.

• The vehicle is tilted due to a heavy load or suspension modifications.
• The camera temperature gets too high.
• Driving with the parking brake applied.
• When the radar sensor at the lower part of the front bumper gets dirty.
• The vehicle is towing a trailer

■

Detection limitations

• A vehicle or pedestrian suddenly crosses in front of you.
• The distance between your vehicle and the vehicle or pedestrian 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 or pedestrian 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, 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 or pedestrian in front of

you is significantly large.

• An oncoming vehicle suddenly comes in front of you.
• Another vehicle suddenly comes in front of you at an intersection, etc.
• Your vehicle abruptly crosses over in front of an oncoming vehicle.
• When driving through a narrow iron bridge.
• When the lead vehicle suddenly slows down.

* Not available on all models

516

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 safety support indicator

(amber) 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

517

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

518

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.

519

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.

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.

■

Gear position for ACC with LSF: In

(

D or

(

The radar sensor is at the
lower part of the front
bumper.

The camera is
located behind
the rearview
mirror.

* Not available on all models

Honda Sensing®

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

520

Driving

■

How to activate the system

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. 525

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

521

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

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. 370, 381

The Vehicle Stability Assist® (VSA®) system, Vehicle
Stability Assist® (VSA®) OFF, adaptive cruise control
(ACC) with low speed follow (LSF), safety support
and low tire pressure/TPMS indicators may come on
in amber along with a message in the driver
information interface when you set the power mode
to ON after re-connecting a battery.
Drive a short distance at more than 12 mph (20 km/h).
Each indicator should go off. If any do not, have your
vehicle checked by a dealer.

On when ACC with LSF
begins

Press and release

SET/− button

Set Vehicle Speed

Set Vehicle Interval

Honda Sensing®

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

522

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. 529

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, and the head-up warning lights

flash.

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.

* Not available on all models

Continued

523

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. 370, 381

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. 525

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

When you depress the accelerator pedal

While the accelerator pedal is depressed, the system
does not apply the brakes to keep the following
interval, as well as the BRAKE message on the driver
information interface display does not appear.

2 When in Operation P. 522

Honda Sensing®

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

524

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.

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

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

525

Honda Sensing®

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

Driving

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

■

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 sized, varied size or construction,

improperly inflated, compact spare tire, etc.).

• The camera temperature gets too high.
• The parking brake is applied.
• When the radar sensor cover 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

For directions on the proper handling of the radar
sensor, refer to the following page.

2 Radar Sensor P. 570

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

2 Front Sensor Camera P. 568

Always keep the radar sensor cover clean.

Never use chemical solvents or polishing powder for
cleaning the radar 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).

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.

* Not available on all models

526

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.

527

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.

Content .. 31 32 33 34 ..