sensor ACURA RDX 2023 Service Manual

uuWhen Driving uBlind Spot Information System
480
Driving
■When the system detects a vehicle
Blind spot information system alert indicator:
Located near the pillar on both sides.
Comes on when:
• A vehicle approaches you from behind to
overtake you at a speed difference of no
more than about 31 mph (50 km/h).
• You pass a vehicle at a speed difference of
no more than about 12 mph (20 km/h).
Blinks and a beeper sounds when:
You use the turn signal lever to signal a turn in
the direction of the detected vehicle while the
blind spot information system alert indicator is
on. u The beeper sounds three times.1Blind Spot Information System
For proper blind spot information system operation:
•Always keep the rear bumper and area around the
radar sensors clean.
•Do not cover the rear bumper corner area with
labels or sticke rs of any kind.
The system is for your convenience only. Even if an
object is within the alert zone, the following
situations may occur:
•The blind spot informatio n system alert indicator
does not come on and the message Blind Spot
Information System Not Available appears on
the multi-information display.
•The blind spot informatio n system alert indicator
may come on even with the message displayed.
Comes On
Blinks
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482
uuWhen Driving uBlind Spot Information System
Driving
The blind spot information system alert indicator may not come on under the
following conditions:
• There is a large speed difference betwee n your vehicle and the vehicle in the
adjacent lane.
• A vehicle is parked in a side lane.
• An object not detected by the radar se nsors approaches or passes your vehicle.
• The vehicle driving in the adjacent lane is a motorcycle or other small vehicle.
The blind spot information system may not operate correctly under the following
conditions:
• Making a turn at an intersection.
• Objects (guard rails, poles, trees, etc.) are detected.
• An object that does not reflect radio wave s well or a motorcycle, is in the alert
zone.
• Driving on a curved road.
• A vehicle is moving from a far lane to the adjacent lane.
• The system picks up signal interference such as other radar sensors from another
vehicle or strong radio wave transmitted from a facility nearby.
• The rear bumper or the area around the radar sensors is covered by dirt, mud,
snow, ice, etc.
• The rear bumper or the area around the radar sensors has been damaged or
deformed.
• In bad weather (heavy rain, snow, and fog).
• Making a short turn or driving on a bumpy road that slightly tilts the vehicle.
• An object such as a bicycle rack is attached to the rear of the vehicle.
■Blind Spot Information System Conditions and Limitations
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483Continued
Driving
AcuraWatchTM
AcuraWatchTM is a driver support system which employs the use of two distinctly
different kinds of sensors, a radar sensor located behind the emblem, and a front
sensor camera mounted to the interior side of the windshield, behind the rearview
mirror.
AcuraWatch
TM is a driver support sy stem which employs the us e of three distinctly
different kinds of sensors, a radar sensor located behind the emblem, 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.
AcuraWatch
TM has the following functions.
■The functions which do not requir e switch operations to activate
• Collision Mitigation Braking SystemTM (CMBSTM) 2 P. 486
• Low Speed Braking Control* 2 P. 497
• Road Departure Mitigation System 2 P. 530
• Traffic Sign Recognition System 2 P. 535
■The functions wh ich require switch operations to activate
• Adaptive Cruise Control ( ACC) with Low Speed Follow
2 P. 502
• Lane Keeping Assist System (LKAS) 2 P. 522
Models without Low Speed Braking Control
Models with Low Speed Braking Control
* Not available on all models
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486
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
Driving
Collision Mitigati on Braking SystemTM (CMBSTM)
The system can assist you when it determine s there is a possibility of your vehicle
colliding with a vehicle or a pedestrian de tected in front of your vehicle. 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 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. 491
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 541
For directions on the prop er handling of the radar
sensor, refer to the following page. 2 Radar Sensor P. 543
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.
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487
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
Continued
Driving
■How the system works
The radar sensor
is behind the
emblem.
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) or above and will search for a vehicle in front of you.
The CMBS
TM 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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489
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
Continued
Driving
The system has three alert stages for a possible collis ion. 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
Vehicle
Ahead
Normal
Short
Long
Your
Vehicle
Your
Vehicle Vehicle
Ahead
Your
VehicleVehicle
Ahead
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Continued491
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
Driving
In the following situations, the radar sensor or camera may be unable to correctly
detect vehicles, pedestrians, moving bicycles, or road conditions, potentially causing
the CMBS to operate improperly.
2 Front Sensor Camera P. 541
2 Radar Sensor P. 543
■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 reflec ted onto the roadway.
• Driving in the shadows of trees, buildings, etc.
• Roadway objects or structures are misinterpreted as vehicles and pedestrians.
• Reflections on the interi or of the windshield.
• Driving at night or in a dark condition such as a tunnel.
■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.
■CMBSTM Conditions and Limitations1Collision Mitigation Braking SystemTM (CMBSTM)
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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492
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
Driving
■Vehicle conditions
• Headlight lenses are dirty or the headlights are not properly adjusted.
• The outside of the windshie ld is blocked by dirt, mud, leaves, wet snow, etc.
• The inside of the windshield is fogged.
• An abnormal tire or wheel condition (incorre ct sizes, varied sizes or construction,
improperly inflated, compact spare tire
*, etc.).
• When tire chains are installed.
• The vehicle is tilted due to a heav y load or suspension modifications.
• The camera temperature gets too high.
• Driving with the parking brake applied.
• When the radar sensor behind the emblem gets dirty.
• The vehicle is towing a trailer.
* Not available on all models
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493
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
Continued
Driving
■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 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 fr ont 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.
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497
uuAcuraWatchTMuLow Speed Braking Control*
Continued
Driving
Low Speed Braking Control*
Using sonar sensors located on the front and rear bumpers, the vehicle can detect if
there is danger of a potential collision with a wall or other obstacle. The system is
designed to alert you when a potential collision is determined, as well as assist in
reducing speed, avoiding collisions, and reducing collision severity.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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