brake HONDA CIVIC SEDAN 2021 (in English) Service Manual

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uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
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Driving
Collision Mitigation Braking SystemTM (CMBSTM)
Can assist you when there is a possibility of your vehicle colliding with a vehicle or a
pedestrian detected in front of yours. The CMBSTM is designed to alert you when the
potential for a collision is determined, as well as to reduce your vehicle speed to help
minimize collision severity when a collision is deemed unavoidable.
1 Collision Mitigation Braking SystemTM (CMBSTM)
Important Safety Reminder
The CMBS
TM is designed to reduce the severity of an
unavoidable collision. It doe s not prevent collision nor
stop the vehicle automatically. It is still your
responsibility to operate the brake pedal and steering
wheel appropriately acco rding to the driving
conditions.
The CMBS
TM may not activate or may not detect a
vehicle in front of y our vehicle under certain
conditions:
2 CMBS
TM Conditions and Limitations P. 458
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 491
For directions on the prop er handling of the radar
sensor, refer to the following page. 2 Radar Sensor P. 493
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uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
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Driving
■How the system works1How the system works
When the CMBS
TM activates, it may automatically
apply the brake. It will be canceled when your vehicle
stops or a potential coll ision is not determined.
The radar sensor is in
the lower bumper.
The camera is located
behind the rearview
mirror.
The system starts monitoring the roadway ah ead when your vehicle speed is about
3 mph (5 km/h) and there is a vehicle in front of you.
When to use
The CMBSTM 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 the system determines
there is a chance of a collision with:
- Vehicles detected in front of you that ar e stationary, oncoming, or traveling in your
same direction.
- A pedestrian who is detected in front of you.
●Your vehicle speed is above 62 mph (100 km/h), and the system determines there
is a chance of a collision with a vehicle detected in front of you traveling in your
same direction.
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uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
Driving
■When the system activates
You can change the distance ( Long/Normal /Short ) between vehicles at which the
system’s earliest collision alert will come on through driver information interface or
audio/information screen setting options.
2 List of customizable options P. 118, 333
1When the system activates
The camera in the CMBS
TM 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
TM Conditions and Limitations P. 458
The system provides visual and audible alerts of a possible collision, and stops if the
collision is avoided.
u Take appropriate action to prevent a collision (apply the brakes, change
lanes, etc.)
Visual Alerts
BeepAudible Alert
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uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
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Driving
■Vehicle conditions
• Headlight lenses are dirty or the h eadlights 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 (wro ng size, varied size or construction,
improperly inflated, co mpact 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 in the lower bumper gets dirty.
•Driving at night or in a dark condition such as a tunnel with the headlights turned off.
■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 vehicl e 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 an d 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 vehicl e suddenly slows down.
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463
uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
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Driving
Adaptive Cruise Control (ACC) with Low Speed Follow
Helps maintain a constant vehicle speed a nd a set following-interval behind a vehicle
detected ahead of yours and, if the detect ed vehicle comes to a stop, can decelerate
and stop your ve hicle, without yo u having to keep your foot on the brake or the
accelerator.
When ACC with Low Speed Follow slows your vehicle by applying the brakes, your
vehicle’s brake lights will illuminate.1 Adaptive Cruise Control (ACC) with Low Speed Follow
Important Reminder
As with any system, there are limits to ACC with Low
Speed Follow. Use the brake pedal whenever
necessary, and always keep a safe interval between
your vehicle and other vehicles.
The radar sensor for ACC with Low Speed Follow is
shared with the collision mitigation braking system
TM
(CMBSTM).
2 Collision Mitigation Braking SystemTM
(CMBSTM) P. 453
3WARNING
Improper use of ACC with Low Speed
Follow can lead to a crash.
Use ACC with Low Speed Follow only
when driving on expressways or freeways
and in good weather conditions.
3WARNING
ACC with Low Speed Follow 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 wi th Low Speed Follow: A vehicle is detected ahead
within ACC with Low Speed Follow range – ACC with Low Speed Follow
operates at speeds up to 90 mph (145 km/h).
No vehicle is detected within ACC with Low Speed Follow range – ACC with
Low Speed Follow operates at the speed of 25 mph (40 km/h) or above.
■Shift position for ACC with Low Speed Follow: In ( D or (S.
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.
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uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
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Driving
■How to activate the system1Adaptive Cruise Control (ACC) with Low Speed Follow
You can read about handling information for the
camera equipped with this system.
2 Front Sensor Camera P. 491
When the MAIN button is pressed, both ACC with
Low Speed Follow and the Lane Keeping Assist
System (LKAS) are either turned on or off.
ACC with Low Speed Follow may not work properly
under certain conditions.
2 ACC with Low Speed Follow Conditions
and Limitations P. 469
When not using ACC with Low Speed Follow: 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 Low Speed Follow under the
following conditions:
•On roads with heavy traf fic 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 Low Speed Follow 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 faci lities with driv e through access.
How to use
■Press the MAIN button on
the steering wheel.
ACC (green) is on in the instrument panel.
ACC with Low Speed Follow is ready to use.
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uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
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 fi xed, and ACC with Low Speed Follow begins.
When driving slower than about 25 mph (40 km/h): If the vehicle is moving
and the brake pedal is not depressed, pr essing 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 Low Speed Follow starts
operating, the vehicle icon, interval bars and
set speed appear on the driver information
interface.
When you use ACC with Low Speed Follow,
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 Speed1 To Set the Vehicle Speed
The indicators for the Adaptive Cruise Control (ACC)
with Low Speed Follow, Road Departure Mitigation
(RDM), Vehicle Stability Assist
TM (VSA ®) system,
Vehicle Stability AssistTM (VSA ®) OFF, Low Tire
Pressure/TPMS* and Collision Mitigation Braking
SystemTM (CMBSTM) may come on after reconnecting
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 vehicl e 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. 115, 325
On when ACC with Low
Speed Follow begins
Press and release
−/SET button
Set Vehicle Speed
Set Vehicle Interval
* Not available on all models
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uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
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Driving
■There is a vehicle ahead
ACC with Low Speed Follow monitors if a ve hicle ahead of you enters the ACC with
Low Speed Follow range. If a vehicle is detected doing so, the ACC with Low Speed
Follow system maintains or decelerates your vehicle’s set speed in order to keep the
vehicle’s set followi ng-interval from the vehicle ahead.
2To Set or Change Following-Interval P. 473
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 Operation1 When in Operation
If the vehicle ahead of you slows down abruptly, or if
another vehicle cuts in front of you, a beeper sounds,
a message appears on th e driver information
interface.
Depress the brake pedal, and keep an appropriate
interval from the vehicle ahead.
Beep
ACC with Low Speed Follow Range: 394 ft. (120 m)
A vehicle icon appears on the
driver information interface
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uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
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 Low Speed Follow
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 Low Speed Follow range.
ACC with Low Speed Follow stays on unle ss you cancel it. Once you release the
accelerator pedal, the system resume s an appropriate speed for keeping the
following-interval while a vehicle ahead is within the ACC with Low Speed Follow
range.
1 When in Operation
Even if the interval betw een your vehicle and the
vehicle detected ahead is short, ACC with Low Speed
Follow may start accelerati ng 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, gradua lly 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
Low Speed Follow detect ing range. Change the ACC
Forward Vehicle Detect Beep setting.
2 Customized Features P. 115, 325
Limitations
You may need to use the brake to maintain a safe
interval when using ACC with Low Speed Follow.
Additionally, ACC with Lo w Speed Follow may not
work properly under certain conditions.
2 ACC with Low Speed Follow Conditions
and Limitations P. 469
A vehicle icon with dotted-line
contour appears on the driver
information interface
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uuHonda Sensing ®u Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
The system may automatically shut off and the ACC indicator will come on under
certain conditions. Some examples of thes e conditions are listed below. Other
conditions may reduce some of the AC C with Low Speed Follow functions.
2Front Sensor Camera P. 491
■Environmental conditions
• Driving in bad weather (rain, fog, snow, etc.).
■Roadway conditions
• Driving on a snowy or wet roadway (obs cured 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 (Wro ng size, varied size or construction,
improperly inflated, co mpact 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 Low Speed Follow Conditions and Limitations1ACC with Low Speed Follow Conditions and Limitations
If you need the radar sensor to be repaired, or
removed, or the radar se nsor 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).
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