2023 ACURA TLX sensor

415Continued
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 has the following functions.
■The functions which do not requir e switch operations to activate
• Collision Mitigation Braking SystemTM (CMBSTM) 2 P. 419
• Road Departure Mitigation System 2 P. 470
• Traffic Sign Recognition System 2 P. 475
■The functions wh ich require switch operations to activate
• Adaptive Cruise Control ( ACC) with Low Speed Follow
2 P. 430
• Lane Keeping Assist System (LKAS) 2 P. 449
• Traffic Jam Assist 2 P. 458
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419
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
Continued
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 or a pedestrian dete cted 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 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. 424
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 481
For directions on the prop er handling of the radar
sensor, refer to the following page.
2 Radar Sensor P. 483
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uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
420
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 system starts monitoring the roadway ahead when your vehicle speed is about 3
mph (5 km/h) or above and will search for a vehicle in front of you. The radar sensor is
behind the emblem.
The camera is
located behind the
rearview mirror.
The CMBS
TM activates when:●The speed difference between your vehicl e 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 are 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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422
uuAcuraWatchTMuCollision 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 vehicles
CMBSTM
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 two
The 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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uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
424
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. 481
2 Radar Sensor P. 483
■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 misint erpreted 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 (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.
■CMBSTM Conditions and Limitations1CMBSTM Conditions and Limitations
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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uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
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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, 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 behind the emblem gets dirty.
* Not available on all models
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426
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
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 vehicl e and a vehicle 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.
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Driving
The CMBSTM may activate even when you are aw are 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 ah ead 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 Collision1 Collision Mitigation Braking SystemTM (CMBSTM)
Do not paint, or apply any coverings or paint to radar
sensor area. This can impact CMBS
TM operation.
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