Honda Accord Coupe (2017 year). Manual - part 31

Braking

Brake System

480

Driving

Your vehicle is equipped with disc brakes at all four wheels. A vacuum power assist
helps reduce the effort needed on the brake pedal. The brake assist system increases
the stopping force when you depress the brake pedal hard in an emergency
situation. The anti-lock brake system (ABS) helps you retain steering control when
braking very hard.

2 Brake Assist System P. 482
2 Anti-lock Brake System (ABS) P. 481

■

Foot Brake

Foot Brake

Check the brakes after driving through deep water,
or if there is a buildup of road surface water. If
necessary, dry the brakes by lightly depressing the
pedal several times.

If you hear a continuous metallic friction sound when
applying the brakes, this is caused by the brake wear
indicator rubbing on the brake rotor and indicates
that the brake pads need to be replaced. Have the
vehicle checked by a dealer. If you hear only an
occasional squeak or squeal when you initially apply
the brake pedal, this may be normal and caused by
high frequency vibration of the brake pads against
the rotating brake disc.

Constantly using the brake pedal while going down a
long hill builds up heat, which reduces the brake
effectiveness. Apply engine braking by taking your
foot off the accelerator pedal and downshifting to a
lower gear. With manual transmission use a lower
gear for greater engine braking.

Do not rest your foot on the brake pedal while
driving, as it will lightly apply the brakes and cause
them to lose effectiveness over time and reduce pad
life. It will also confuse drivers behind you.

481

Braking

Anti-lock Brake System (ABS)

Driving

Anti-lock Brake System (ABS)

Helps prevent the wheels from locking up, and helps you retain steering control by
pumping the brakes rapidly, much faster than you.

The electronic brake distribution (EBD) system, which is part of the ABS, also
balances the front-to-rear braking distribution according to vehicle loading.

You should never pump the brake pedal. Let the ABS work for you by always
keeping firm, steady pressure on the brake pedal. This is sometimes referred to as
“stomp and steer.”

■

ABS operation

The brake pedal may pulsate slightly when the ABS is working. Keep holding the
pedal firmly down. On dry pavement, you will need to press on the brake pedal very
hard before the ABS activates. However, you may feel the ABS activate immediately
if you are trying to stop on snow or ice.

When the vehicle speed goes under 6 mph (10 km/h), the ABS stops.

■

ABS

Anti-lock Brake System (ABS)

NOTICE

The ABS may not function correctly if you use an
incorrect tire type and size.

When the ABS indicator comes on while driving,
there may be a problem with the system.
While normal braking is not affected, there is a
possibility of the ABS not operating. Have the vehicle
checked by a dealer immediately.

The ABS does not reduce the time or distance it takes
to stop the vehicle. It only helps with steering control
during hard braking.

In the following cases, your vehicle may need more
stopping distance than a vehicle without the ABS:

•

When driving on rough road surfaces, including
when driving on uneven surfaces, such as gravel or
snow.

•

When snow chains are installed.

You may hear a motor sound coming from the
engine compartment while system checks are being
performed immediately after starting the engine or
while driving. This is normal.

482

Braking

Brake Assist System

Driving

Brake Assist System

Designed to assist the driver by generating greater braking force when you depress
the brake pedal hard during emergency braking.

■

Brake assist system operation

Press the brake pedal firmly for more powerful braking.

When brake assist operates, the pedal may wiggle slightly and an operating noise
may be heard. This is normal. Keep holding the brake pedal firmly down.

■

Brake Assist System

483

Braking

Collision Mitigation Braking System

(CMBS

)

Continued

Driving

Collision Mitigation Braking System

(CMBS

)

Can assist you when there is a possibility of your vehicle colliding with a vehicle or a
pedestrian detected in front of yours. The CMBS

is designed to alert you when a

potential collision is determined, as well as to reduce your vehicle speed to help
minimize collision severity when a collision is deemed unavoidable.

■

How the system works

Collision Mitigation Braking System

(CMBS

)

Important Safety Reminder
The CMBS

is designed to reduce the severity of an

unavoidable collision. It does not prevent collision nor
stop the vehicle automatically. It is still your
responsibility to operate the brake pedal and steering
wheel appropriately according to the driving
conditions.

The CMBS

may not activate or may not detect a

vehicle in front of your vehicle under certain
conditions:

2 CMBS

Conditions and Limitations P. 487

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

2 Front Sensor Camera

P. 445

Be careful not to have the radar sensor cover strongly
impacted.

How the system works

Rapid vibrations on the steering wheel alert you
when your vehicle speed is between 19 and 62 mph
(30 and 100 km/h) with an oncoming vehicle
detected in front of you.

When the CMBS

activates, it may automatically

apply the brake. It will be canceled when your vehicle
stops or a potential collision is not determined.

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

The camera is
located behind
the rearview
mirror.

The system starts monitoring the roadway ahead when your vehicle speed is about 3
mph (5 km/h) and there is a vehicle in front of you.

When to use

The CMBS

activates when:

●

The speed difference between your vehicle and a vehicle or pedestrian detected
in front of you becomes about 3 mph (5 km/h) and over with a chance of a
collision.

●

Your vehicle speed is about 62 mph (100 km/h) or less and there is a chance of a
collision with an oncoming detected vehicle or a pedestrian in front of you.

* Not available on all models

Braking

Collision Mitigation Braking System

(CMBS

)

484

Driving

■

When the system activates

At system’s earliest collision alert stage, you can change the distance (Long/
Normal/Short) between vehicles at which alerts will come on through multi-
information display setting options.

2 List of customizable options P. 109

■

Vibration alert on the steering wheel

When a potential collision to an oncoming detected vehicle is determined, the
system alerts you with rapid vibration on the steering wheel, in addition to visual and
audible alerts.

Take appropriate action to prevent a collision (apply the brakes, operate the
steering wheel, etc.).

When the system activates

The camera in the CMBS

is also designed to detect

pedestrians.
However, this pedestrian detection feature may not
activate or may not detect a pedestrian in front of
your vehicle under certain conditions.
Refer to the ones indicating the pedestrian detection
limitations from the list.

2 CMBS

Conditions and Limitations P. 487

The head-up warning uses a lens located at the front
end of the dashboard.
Do not cover the lens or spill any liquid on it.

Lens

The system provides visual, audible and tactile alerts of a possible collision, and
stops if the collision is avoided.

Take appropriate action to prevent a collision (apply the brakes, change
lanes, etc.)

Beep

Head-up
Warning
Lights

Visual Alerts

Audible Alert

Tactile Alert

Vibration alert on the steering wheel

Vibration alert function is disabled when the electric
power steering (EPS) system indicator comes on.

2 Electric Power Steering (EPS) System

Indicator P. 77

485

Braking

Collision Mitigation Braking System

(CMBS

)

Continued

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

Steering Wheel

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.

In case of an
oncoming vehicle
detected, rapid
vibration is
provided.

—

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

Braking

Collision Mitigation Braking System

(CMBS

)

486

Driving

Press this button until the beeper sounds to
switch the system on or off.

When the CMBS

is off:

• The beeper sounds.
• The CMBS

indicator in the instrument

panel comes on.

• A message on the multi-information display

reminds you that the system is off.

The CMBS

is in the previously selected ON or

OFF setting each time you start the engine.

■

CMBS

On and Off

Collision Mitigation Braking System

(CMBS

)

The CMBS

may automatically shut off, and the

CMBS

indicator will come and stay on under certain

conditions:

2 CMBS

Conditions and Limitations P. 487

* Not available on all models

487

Braking

Collision Mitigation Braking System

(CMBS

)

Continued

Driving

The system may automatically shut off and the CMBS

indicator 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. 445

■

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.

■

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.

■

CMBS

Conditions and Limitations

* Not available on all models

488

Braking

Collision Mitigation Braking System

(CMBS

)

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.

■

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.

489

Braking

Collision Mitigation Braking System

(CMBS

)

Continued

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).

Limitations applicable to pedestrian detection only

Braking

Collision Mitigation Braking System

(CMBS

)

490

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.

■

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.

■

With Little Chance of a Collision

Collision Mitigation Braking System

(CMBS

)

For the CMBS

to work properly:

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
CMBS

off 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

491

Driving

Parking Your Vehicle

When Stopped

1. Depress the brake pedal firmly.
2. Firmly apply the parking brake.

3. Move the shift lever from

(

D to

(

3. Move the shift lever to

(

R or

(

4. Turn off the engine.

Always set the parking brake firmly, in particular if you are parked on an incline.

Parking Your Vehicle

Do not park your vehicle near flammable objects,
such as dry grass, oil, or timber.
Heat from the exhaust can cause a fire.

When Stopped

NOTICE

The following can damage the transmission:

•

Depressing the accelerator and brake pedals
simultaneously.

•

Holding the vehicle in place when facing uphill by
depressing the accelerator pedal.

•

Moving the shift lever into

(

P before the vehicle

stops completely.

Automatic transmission/CVT models

Manual transmission models

All models

492

Parking Your Vehicle

Parking Sensor System

Driving

Parking Sensor System

The corner and center sensors monitor obstacles around your vehicle, and the
beeper and audio/information screen let you know the approximate distance
between your vehicle and the obstacle.

■

The sensor location and range

Parking Sensor System

Even when the system is on, always confirm if there is
no obstacle near your vehicle before parking.

The system may not work properly when:

•

The sensors are covered with snow, ice, mud or
dirt.

•

The vehicle is on uneven surface, such as grass,
bumps, or a hill.

•

The vehicle has been out in hot or cold weather.

•

The system is affected by devices that emit
ultrasonic waves.

•

Driving in bad weather.

The system may not sense:

•

Thin or low objects.

•

Sonic-absorptive materials, such as snow, cotton,
or sponge.

•

Objects directly under the bumper.

Do not put any accessories on or around the sensors.

Within about 24 in (60 cm) or less

Front Corner Sensors

Rear Corner Sensors

Within about 43 in (110 cm) or less

Rear Center Sensors

* Not available on all models

Continued

493

Parking Your Vehicle

Parking Sensor System

Driving

■

Parking sensor system on and off

With the power mode in ON, press the
parking sensor system button to turn on or off
the system. The indicator in the button comes
on when the system is on.

The rear center and corner sensors start to
detect an obstacle when the shift lever is in

(

R, and the vehicle speed is less than 5 mph

(8 km/h).

The front corner sensors start to detect an
obstacle when the shift lever is in any position
other than

(

P, and the vehicle speed is less

than 5 mph (8 km/h).

Parking Sensor System

When you set the power mode to ON, the system will
be in the previously selected condition.

* Not available on all models

494

Parking Your Vehicle

Parking Sensor System

Driving

■

When the distance between your vehicle and obstacles behind becomes shorter

*1:At this stage, only the center sensors detect obstacles.

Length of the

intermittent beep

Distance between the Bumper and Obstacle

Indicator

Audio/information screen

Corner Sensors

Center Sensors

Moderate

—

Rear: About 43-24 in

(110-60 cm)

Blinks in Yellow

Short

About 24-18 in

(60-45 cm)

About 24-18 in

(60-45 cm)

Blinks in Amber

Very short

About 18-14 in

(45-35 cm)

About 18-14 in

(45-35 cm)

Continuous

About 14 in

(35 cm) or less

About 14 in

(35 cm) or less

Blinks in Red

Indicators light where the
sensor detects an obstacle.

495

Parking Your Vehicle

Parking Sensor System

Driving

1. Make sure that the parking sensor system is not activated. Set the power mode to

VEHICLE OFF (LOCK).

2. Press and hold the parking sensor system button, and set the power mode to ON.
3. Keep pressing the button for ten seconds. Release the button when the indicator

in the button blinks.

4. Press the button again. The indicator in the button goes off.

The beeper sounds twice. The rear sensors are now turned off.

To turn the rear sensors on again, follow the above procedure. The beeper sounds
three times when the rear sensors come back on.

■

Turning off All Rear Sensors

Turning off All Rear Sensors

When you shift to

(

R, the indicator in the parking

sensor system button blinks as a reminder that the
rear sensors have been turned off.

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