sensor HONDA CRV 2023 Service Manual

492
Driving
Honda Sensing®
Honda Sensing® is a driver support system which employs the use of three distinctly
different kinds of sensors: a radar sensor located behind the Honda emblem on the
front grille, a front sensor camera mounted to the interior side of the windshield,
behind the rearview mirror, and the sonar sensors located in the front and rear
bumpers.
Honda Sensing® is a driver support system which employs the use of two distinctly
different kinds of sensors: a radar sensor located behind the Honda emblem on the
front grille and a front sensor camera mounted to the interior side of the windshield,
behind the rearview mirror.
Honda Sensing® has the following functions.
■The functions whic h do not require switch operations to activate
• Collision Mitigation Braking SystemTM (CMBSTM) 2 P. 495
• Low Speed Braking Control* 2 P. 507
• Road Departure Mitigation System 2 P. 554
• Traffic Sign Recognition System 2 P. 562
■The functions wh ich require switch op erations to activate
• Adaptive Cruise Control (ACC) with Low Speed Follow
2 P. 513
• Lane Keeping Assist System (LKAS) 2 P. 533
• Traffic Jam Assist 2 P. 545
Models with Low Speed Braking Control
Models without Low Speed Braking Control
* Not available on all models

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uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
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Driving
Collision Mitigation Braking SystemTM (CMBSTM)
The system can assist you when it determines there is a possibility of your vehicle
colliding with a vehicle (including moto rcycles) ahead from behind, an oncoming
vehicle in front, a pedestrian, or someon e riding a bicycle (moving bicycle). The
CMBS
TM is designed to alert you when the potential for a collision is determined, as
well as assist in reducing speed, avoiding collisions, and reducing collision severity.
1 Collision Mitigation Braking SystemTM (CMBSTM)
Important Safety Reminder
The CMBS
TM is designed to reduce the severity of an
unavoidable collision. It does not prevent collisions
nor stop the vehicle automati cally. It is still your
responsibility to operate th e 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. 500
For directions on the prop er 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

uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
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Driving
■How the system works
The CMBS
TM will be canceled when your vehi cle stops or the system determines
there no longer is the potential for a collision.
The CMBS
TM may also be canceled when a driver operates the steering wheel and
the brake or accelerator pedal to avoid a collision.
1 How the system works
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. 500
The radar sensor is behind
the Honda emblem on the
front grille.
A front sensor 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) or above and will search for a vehicle, pedestrian, or moving bicycle
in front of you.
When to use
The CMBSTM activates when:●The speed difference between your vehicle and a vehicle, pedestrian, or moving
bicycle detected in front of you becomes about 3 mph (5 km/h) and over with a
chance of a collision.
●Your vehicle drives at about 18 mph (30 km/h) or less and there is a chance of in
frontal collision with a detected oncoming vehicle when you turn left at an
intersection.
●Your vehicle speed is about 62 mph (100 km/h) or less and the system determines
there is a chance of a collision with:
- An oncoming or stationary vehicle detected in front of you.
- A pedestrian or moving bicycle detected in front of you.

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uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
Driving
The system has three alert stages for a possible collision. However, depending on circumstances, the CMBSTM may not go through all of
the stages before initiating the last stage.
■Collision Alert Stages
Distance between vehiclesCMBSTM
The radar sensor detects a vehicleAudible & Visual WARNINGSBraking
Stage oneThere 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
twoThe risk of a collision has increased,
time to respond is reduced.
Visual and audible alerts.
Lightly
applied
Stage three The CMBSTM determines that a
collision is unavoidable.Forcefully applied
Your Vehicle Vehicle Ahead
Normal
Short
Long
Your Vehicle Vehicle Ahead
Your
Vehicle Vehicle
Ahead

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uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
Driving
In the following situations, the radar sensor or camera may be unable to correctly
detect vehicles, pedestrians, moving bicycl es, or road conditions, potentially causing
the CMBS
TM to operate improperly.
2 Front Sensor Camera P. 568
2 Radar Sensor P. 570
■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 pedestrians, mo ving bicycles or roadway.
• Driving in the shadows of trees, buildings, etc.
• Roadway objects or structures are misint erpreted as vehicles and pedestrians.
• Reflections on the interi or of the windshield.
• Driving at night or in a dark place such as a tunnel (due to low-light conditions,
pedestrians, moving bicycles or other vehicles may not be detected).
■Roadway conditions
• Driving on a snowy or wet roadway (obs cured 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.
• Driving through an area where there are ob jects that strongly reflect radio waves
onto vehicles, pedestrians, or moving bicycles.
• Your vehicle is strongly shaken on uneven road surfaces.
■CMBSTM Conditions and Limitations

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■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 (inco rrect sizes, varied sizes or construction,
improperly inflated, 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 behind the Hond a emblem on the front grille gets dirty.
• The vehicle is towing a trailer.
• Driving at night or in a dark place (e.g., a tunnel) with the headlights off.
• There is residue on the windshi eld from the windshield wipers.

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■Automatic shutoff
The CMBSTM may automatically shut itself off and the safety support indicator
(amber) comes and stays on when:
• You drive off-road or on a mountain ro ad, or curved and winding road for an
extended period.
• Driving in bad weather (rain, fog, snow, etc.).
• Driving with the parking brake applied.
• The camera temperature gets too high.
• The front of the camera or radar sensor behind the Honda emblem is covered by
dirt, fog, rain, mud, wet snow, seals, accessories, stickers, or film on the
windshield.
• An abnormal tire condition is detected (i ncorrect tire size, flat tire, etc.).
Once the conditions that caused the CMBS
TM to shut off improv e or are addressed
(e.g., cleaning), the system comes back on.

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Low Speed Braking Control*
Using sonar sensors located on the front and r ear bumpers, this system can detect if
there is danger of a potential collision with a wall or other obstacle during normal
driving or when the accelerator pedal is depressed with too much force. The system
then assists in avoiding collisions and reducing damage from impact through
assistive braking and/or assistive driving power suppression.1 Low Speed Braking Control*
If the Low Speed Braking Control activates in a
situation where you do not want automatic brake
application (such as when the vehicle is between two
railroad crossing gates), simply press the brake pedal
to deactivate the system and then continue to drive
as intended.
3WARNING
The Low Speed Braking Control System
cannot avoid all collisions and may not
reduce damage in each situation where the
accelerator is mistakenly or aggressively
pressed. Overreliance on the system may
result in a collision with serious injury or
death. Always check your surroundings,
your shift position, and your pedal use.
Driver remains responsible for safely
operating the vehicle.
* Not available on all models

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Driving
■Assistive braking
Assistive braking provides a visual and audible alert when the vehicle is moving
between approximately 1 and 6 mph (2 and 10 km/h) and there is the possibility of
a collision with a detected wall or other obstacles, as well as providing assistance
with braking.
If the only rear sensors are turned off using the parking sensor system, the assistive
braking will not work when reversing.
2 Parking sensor system on and off P. 585
■How the System Works1Low Speed Braking Control*
For directions on the prop er handling of the sonar
sensors, please refer to the following page.
2 Sonar Sensors
* P. 571
The vehicle will release the brake and start moving a
few seconds after the system is activated. To keep the
vehicle stopped, keep the brake pedal depressed or
put the transmission into
( P.
In order to prevent the sy stem from activating when
not needed, always turn it off during vehicle
maintenance, when loading on ships, trucks, and so
on, or when using a chas sis dynamometer or free
rollers for inspection or when washing the car in
conveyor type car wash machine.
If you put any accessories on or around the rear
sensors, the Low Speed Br aking Control System may
activate if it detects these accessories as an obstacle.
In this case, turn off the rear sensor. 2 Customized Features P. 376Audible Alert
Beep Beep
The vehicle
applies brake Driver
depresses
brake pedal
Remove
brake after
maintaining
stationary
positionStop
* Not available on all models

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■Assistive driving power suppression
When the vehicle is stopped or moving at less than 6 mph (10 km/h) and there is an
obstacle such as a wall near the front of or back of the vehicle, if the accelerator
pedal is depressed more than necessary, the system will inform you with a visual and
audible alert. At the same time, the sy stem will prevent sudden forward or
backwards movement by limiting the outpu t of the power system, then assistive
braking will activate when you get closer to the obstacle.
Assistive driving power suppression will not activate in the following situations.
When moving forward:
• When on a steep slope or the shift position is in
(P, (R, or (N.
When reversing:
• When on a steep slope or the shift position is in a position other than
(R.
If the only rear sensors are turned off usi ng the parking sensor system, the assistive
driving power suppression will not work when reversing.
2 Parking sensor system on and off P. 585
Audible Alert
Beep
Beep
Accidental depression of
the accelerator/Limiting
the output of the power
system