2022 ACURA RDX sensor

497
uuAcuraWatchTMuLow Speed Braking Control*
Continued
Driving
Low Speed Braking Control*
Using sonar sensors located on the front an d rear bumpers, this system detects if
there is danger of a potential collision with a wall or other obstacle during normal
driving. The system then assists in avoiding collisions and reducing damage from
impact through assistive braking.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), si mply 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 mistaken ly 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
22 ACURA RDX-31TJB6300.book 497 ページ ２０２１年８月２日　月曜日　午前１１時０分

uuAcuraWatchTMuLow Speed Braking Control*
498
Driving
The Low Speed Braking Control 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 obstacle, as well as providing
assistance with braking.
If the only rear sensors are turned off usin g the parking sensor system, the assistive
braking is not working when reversing.
2 Turning off All Rear Sensors P. 559
■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. 544
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.
Beep Beep
The vehicle
applies brake Driver
depresses
brake pedal Remove
brake after
maintaining
stationary
position
Stop
Audible Alert
* Not available on all models
22 ACURA RDX-31TJB6300.book 498 ページ ２０２１年８月２日　月曜日　午前１１時０分

uuAcuraWatchTMuLow Speed Braking Control*
500
Driving
A certain amount of time has passed since activation.
The system may not operate correctly under the following conditions:
■Examples of obstacles the sonar sensors cannot detect
• Obstacles that do not refl ect sound waves well, such as people, snow, cloth,
sponges, etc.
• Thin obstacles such as fences, bicycles, sign posts, etc.
• Short or small obstacles.
• Obstacles immediately in front of the bumper.
• Moving objects or obstacles that suddenly enter the road.
• Obstacles that are not pe rpendicular to the ground.
■Conditions for Cancellation
■Low Speed Braking Control System Conditions and Limitations
1Conditions for Cancellation
After Low Speed Braking Control has activated once,
it will not activate again for the same obstacle.
The system can be activate d again after driving for
some time after the last activation.
Low Speed Braking Control ac tivates separately when
moving forward and reversing. (For example, if it
activates when moving forwar d, it can be activated
again immediately if reversing.)
22 ACURA RDX-31TJB6300.book 500 ページ ２０２１年８月２日　月曜日　午前１１時０分

501
uuAcuraWatchTMuLow Speed Braking Control*
Driving
■Examples of situations where the sonar sensors cannot detect obstacles
• The sonar sensors are dirty (covered by snow, water, mud, etc.).
• The vehicle is too hot or cold.
• The steering wheel is turned sharply when approaching the obstacle at an angle.
■Examples of other cases where the system may not work correctly
• The vehicle is tilted due to heavy load or su spension modifications.
• An abnormal tire or wheel condition (inco rrect sizes, varied sizes or construction,
improperly inflated, compact spare tire
*, etc.).
• Bad weather conditions such as heav y rain, fog, snow, sandstorms, etc.
• The ambient temperature/humidity is too high or low.
• When going down a very steep slope.
• When close to other vehicles with sonar sensors or other objects that emit
ultrasonic waves.
■Situations where the system may acti vate even without risk of a collision
• When passing through short or narrow gates.
• When driving on uneven surfaces, grassy areas, or places with steps.
• When a sloped pillar or wall is protruding from a high position.
• When there are obstacles next to the road.
• When driving toward flags, curtains, tre e branches, railroad crossing bars, etc.
• When driving on flooded roads.
* Not available on all models
22 ACURA RDX-31TJB6300.book 501 ページ ２０２１年８月２日　月曜日　午前１１時０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.
22 ACURA RDX-31TJB6300.book 502 ページ ２０２１年８月２日　月曜日　午前１１時０分

Continued503
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow
Driving
■How to activate the system1Adaptive Cruise Control (ACC) with Low Speed Follow
For directions on the prop er handling of the radar
sensor, refer to the following page.
2 Radar Sensor P. 543
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 541
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. 486
ACC with Low Speed Follow may not work properly
under certain conditions.
2 ACC with Low Speed Follow Conditions
and Limitations P. 509
When not using ACC with Low Speed Follow: Turn
off adaptive cruise by pressing the button.
How to use
■Press the button on the
steering wheel.
(white) is on in the instrument panel.
ACC with Low Speed Follow is ready to use.
22 ACURA RDX-31TJB6300.book 503 ページ ２０２１年８月２日　月曜日　午前１１時０分

Continued509
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow
Driving
The system may automatically shut off u nder certain conditions. Some examples of
these conditions are listed below. Other conditions may reduce some of the ACC
with Low Speed Follow functions.
2 Front Sensor Camera P. 541
2 Radar Sensor P. 543
■Environmental conditions
Driving in bad weather (r ain, fog, snow, etc.).
■Roadway conditions
Driving on a snowy or wet roadway (obscure d lane marking, vehicle tracks, reflected
lights, road spra y, high contrast).
■Vehicle conditions
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• An abnormal tire or wheel condition (inco rrect sizes, varied sizes or construction,
improperly inflated, compact spare tire
*, etc.).
• The camera temperature gets too high.
• The parking brake is applied.
• The radar sensor cover is dirty.
• The vehicle is tilted due to a heavy load or suspension modifications.
• Tire chains are installed.
• The vehicle is towing a trailer.
■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
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).
If the front of the vehicle is impacted in any of the
following situations, the ra dar sensor may not work
properly. Have your vehi cle checked by a dealer:
•The vehicle mounted onto a bump, curb, chock,
embankment, etc.
•You drive the vehicle where water is deep.
•Your vehicle has a frontal collision.
* Not available on all models
22 ACURA RDX-31TJB6300.book 509 ページ ２０２１年８月２日　月曜日　午前１１時０分

510
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow
Driving
■Detection limitations
• A vehicle suddenly crosses in front of you.
• The interval between your vehicle and the vehicle ahead of you is too short.
• A vehicle cuts in front of you at a slow speed, and it brakes suddenly.
• You accelerate rapidly and approach th e vehicle ahead of you at high speed.
• The vehicle ahead of you is a motorcycle, bicycle, mobility scooter, or other small
vehicle.
• There are animals in front of your vehicle.
• You drive on a curved or 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.
• Your vehicle abruptly crosses over in front of an oncoming vehicle.
22 ACURA RDX-31TJB6300.book 510 ページ ２０２１年８月２日　月曜日　午前１１時０分