2023 ACURA RDX rear view mirror

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
23 ACURA RDX-31TJB6400.book 483 ページ ２０２２年８月４日　木曜日　午後１時５１分

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.
23 ACURA RDX-31TJB6400.book 487 ページ ２０２２年８月４日　木曜日　午後１時５１分

494
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
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 recogn izing that the person is a pedestrian.
• When the pedestrian is shorter than about 3.3 feet (1 me ter) 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 squa tting, 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).
■Automatic shutoff
The CMBSTM may automatically shut itself off and the safety support indicator
(amber) comes and stays on when:
• The temperature inside the system is high.
• You drive off-road or on a mountain ro ad, or curved and winding road for an
extended period.
• An abnormal tire condition is detected (wrong tire size, flat tire, etc.).
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
Once the conditions that caused the CMBS
TM to shut off improve or are addressed
(e.g., cleaning), the system comes back on.
Limitations applicable to pedestrian detection only
23 ACURA RDX-31TJB6400.book 494 ページ ２０２２年８月４日　木曜日　午後１時５１分

502
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow
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 vehicle, without you having to keep your foot on the brake or the
accelerator.
When ACC with Low Speed Follow slows y our 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.
ACC with Low Speed Follow cannot be activated if
Intelligent Dynamics System setting is SNOW.
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 road and 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 with 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.
■Gear position for ACC with Low Speed Follow: In ( D or ( S.
The radar sensor
is behind the
emblem.
The camera is
located behind
the rearview
mirror.
23 ACURA RDX-31TJB6400.book 502 ページ ２０２２年８月４日　木曜日　午後１時５１分

517
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow
Continued
Driving
■Automatic cancellation
The beeper sounds and a message appears on the multi-information display when
ACC with Low Speed Follow is automatically canceled. Any of these conditions may
cause the ACC with Low Speed Fo llow to automatically cancel:
• Bad weather (rain, fog, snow, etc.)
• When the radar sensor behind the emblem gets dirty.
• The vehicle ahead of yo u cannot be detected.
• An abnormal tire condition is detected, or the tires are skidding.
• Driving on a mountainous road for extended periods, or driving off road.
• Abrupt steering wheel movement.
• When the ABS, VSA ®, CMBS
TM, or Low Speed Braking Control* is activated.
• When the ABS or VSA ® system indicator comes on.
• When the vehicle is stopped on a very steep slope.
• When you manually apply the parking brake.
• When the detected vehicle within the AC C with Low Speed Follow range is too
close to your vehicle.
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
• When the Maximum Load Limit is exceeded.
• When passing through an enclosed space, such as tunnel.
• The vehicle has repeatedly applied the brakes to maintain the set speed (for
example, you are descending a long slope).
The ACC with Low Speed Follow automatic ca ncellation can be also triggered by the
following causes. In these cases, the parking brake will be automatically applied.
• The driver’s seat belt is unfastene d when the vehicle is stationary.
• The vehicle stops for more than 10 minutes.
• The engine is turned off.
* Not available on all models
23 ACURA RDX-31TJB6400.book 517 ページ ２０２２年８月４日　木曜日　午後１時５１分

527
uuAcuraWatchTMuLane Keeping Assist System (LKAS)
Continued
Driving
■The LKAS may be automatically canceled when:
• The camera temperature gets extremely high or low.
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
• The ABS or VSA ® system engages.
The beeper sounds if the LKAS is automatically canceled.
The system may not detect lane markings and therefore may not keep the vehicle in
the middle of the lane under certain conditions, including the following:
■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 lane lines and the roadway surface.
• 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.
• Shadows of adjacent objects are parallel to lane markings.
• Roadway objects or structures are misinterpreted as lane markers.
• Reflections on the interi or of the windshield.
• Driving at night or in a dark condition such as a tunnel.
■LKAS Conditions and Limitations
23 ACURA RDX-31TJB6400.book 527 ページ ２０２２年８月４日　木曜日　午後１時５１分

530
uuAcuraWatchTMuRoad Departure Mitigation System
Driving
Road Departure Mitigation System
Alerts and helps to assist you when the sy stem detects a possibility of your vehicle
unintentionally crossing over detected la ne markings and/or leaving the roadway
altogether.
The front camera behind the rearview mirror
monitors left and right lane markings (in white
or yellow). If your vehicle is getting too close
to detected lane markings without a turn
signal activated, the system, in addition to a
visual alert, applies steering torque and alerts
you with rapid vibrations on the steering
wheel, to help you remain within the detected
lane.
2 Customized Features P. 359
As a visual alert, the Lane Departure
message appears on the multi-information
display.
If the system determines that its steering i nput is insufficient to keep your vehicle on
the roadway, it may apply braking. u Braking is applied only when the lane markings are solid continuous lines.
The system cancels assisting operations wh en you turn the steering wheel to avoid
crossing over detected lane markings.
If the system operates several times without detecting driver response, the system
beeps to alert you.
■How the System Works
1 Road Departure Mitigation System
Important Safety Reminder
Like all assistance systems, the Road Departure
Mitigation system has limitations.
Overreliance on the Road Departure Mitigation
system may result in a collision. It is always your
responsibility to keep the vehicle within your driving
lane.
The Road Departure Mitigation system only alerts you
when lane drift is detected without a turn signal in
use. The Road Departure Mitigation system may not
detect all lane markings or lane or roadway
departures; accuracy will vary based on weather,
speed and lane marker condi tion. It is always your
responsibility to sa fely operate the vehicle and avoid
collisions.
You can read about handling information for the
camera equipped with this system.
2 Front Sensor Camera P. 541
The Road Departure Mitigati on system may not work
properly or may work im properly under the certain
conditions: 2 Road Departure Mitigation Conditions and
Limitations P. 533
There are times when you may not notice the Road
Departure Mitigation functions due to your operation
of the vehicle, or road surface conditions.
23 ACURA RDX-31TJB6400.book 530 ページ ２０２２年８月４日　木曜日　午後１時５１分

541
uuAcuraWatchTMuFront Sensor Camera
Continued
Driving
Front Sensor Camera
The camera, used in systems such as Lane Keeping Assist System (LKAS), Road
Departure Mitigation system, Adaptive Cruise Control (ACC) with Low Speed
Follow, Traffic Sign Recognition system, and Collision Mitigation Braking System
TM
(CMBSTM), is designed to detect an object that triggers any of the systems to operate
their functions.
This camera is located behind the rearview
mirror.
To help reduce the likelihood that high interior
temperatures will cause the camera’s sensing
system to shut off, when parking, find a shady
area or face the front of the vehicle away from
the sun. If you use a reflective sun shade, do
not allow it to cover the camera housing.
Covering the camera can concentrate heat on
it.
■Camera Location and Handling Tips
1 Front Sensor Camera
Never apply a film or attach any objects to the
windshield, the hood, or th e front grille that could
obstruct the camera’s fiel d of vision and cause the
system to operate abnormally.
Scratches, nicks, and othe r damage to the windshield
within the camera’s fiel d of vision can cause the
system to operate abnormall y. If this occurs, we
recommend that you replac e the windshield with a
genuine Acura replacement windshield. Making even
minor repairs within the ca mera’s field of vision or
installing an aftermarke t replacement windshield
may also cause the system to operate abnormally.
After replacing the winds hield, have a dealer
recalibrate the camera. Pr oper calibration of the
camera is necessary for the system to operate
properly.
Do not place an object on the top of the instrument
panel. It may reflect onto the windshield and prevent
the system from detecting lane lines properly.
Front Sensor
Camera
23 ACURA RDX-31TJB6400.book 541 ページ ２０２２年８月４日　木曜日　午後１時５１分