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Continued481
uuAcuraWatchTMuCollision Mitigation Braking SystemTM (CMBSTM)
Driving
■When the system activates
You can change the distance ( Long/Normal /Short ) between vehicles at which the
system’s earliest collision alert will come on through driver information interface
setting options.
2 List of customizable options P. 353
1When the system activates
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. 484
The head-up warning
* uses a lens located at the front
end of the dashboard.
Do not cover the lens or spill any liquid on it.
Lens
The system provides visual and audible alerts of a possible collision, and stops
if the collision is avoided.
u Take appropriate action to prevent a collision (apply the brakes, change
lanes, etc.)
Beep
Head-up
Warning
Lights
*
Visual Alerts
Audible Alert
* Not available on all models
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486
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 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 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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Page 497 of 712

496
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.
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 wi th 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 about 25 mph (40 km/h) or above.
■Shift 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.
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Continued497
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. 549
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 547
ACC with Low Speed Follow may not work properly
under certain conditions.
2 ACC with Low Speed Follow Conditions
and Limitations P. 503
When not using ACC with Low Speed Follow: Turn
off adaptive cruise by pressing the button.
Do not use ACC with Low Speed Follow under the
following conditions.
•Driving in continuous stop and go traffic.
•On roads with sharp turns.•On roads with steep downhill sections, as the set
vehicle speed can be exceeded by coasting. In such
cases, ACC with Low Speed Follow will not apply
the brakes to maintain the set speed.
•On roads with toll collection facilities or other
objects between lanes of traffic, or in parking
areas, or faci lities with driv e through access.
■Press the button on the
steering wheel.
(white) is on in the
instrument panel.
ACC with Low Speed
Follow is ready to use.
How to use
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uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow
504
Driving
■Detection limitations
• A vehicle or pedestrian suddenly crosses in front of you.
• The interval 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.
• 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.
• 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 or a pedestrian 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.1ACC 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).
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Page 506 of 712
505
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow
Continued
Driving
• Driving through a narrow metal bridge.
• The vehicle ahead of you brakes suddenly.
• The vehicle ahead of yo u has a unique shape.
• Your vehicle or the vehicle ahead of you is driving on one edge of the lane.
Radar detects upper section of
an empty carrier truck. Panel truck,
tanker truck,
etc.
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uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow
510
Driving
■Automatic cancellation
The beeper sounds and a message appears on the driver information interface when
ACC with Low Speed Follow is automaticall y 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 you cannot be detected.
• An abnormal tire condition is detected, or the tires are skidding.
• Driving on a mountainous road, or driving off road for extended periods.
• 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 ACC 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 enclos ed space, such as tunnel.
• The vehicle has repeatedly applied the brakes to maintain the set speed (for
example, you are descending a long slope).
1 Automatic cancellation
Even though ACC with Low Speed Follow has been
automatically canceled, you can still resume the prior
set speed. Wait until the condition that caused ACC
with Low Speed Follow to cancel improves, then
press the RES/+/SET/– switch up or down.
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Page 537 of 712

uuAcuraWatchTMuRoad Departure Mitigation System
536
Driving
The system cancels assisting operations when you turn th e 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.1 Road Departure Mitigation System
If LKAS is off and you have selected Narrow from the
customized options using the audio/information
screen, the message below will appear in case the
system determines a possibility of your vehicle
crossing over detect ed lane markings.
2 Customized Features P. 345
In the following case, a beeper sounds, a message
related to the ACC with Low Speed Follow/ACC
appears on the driver information interface, and the
braking function controlled by the Road Departure
Mitigation system is canceled.
•The vehicle has repeatedly applied the brakes to
maintain the set speed (for example, you are
descending a long slope).
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