HONDA CLARITY PLUG-IN 2020 Owner's Manual (in English)

Continued399
uuWhen Driving uRoad Departure Mitigation (RDM) System
Driving
The system becomes ready to start sear ching for lane markings when all the
following conditions are met:
• The vehicle is traveling between about 45 and 90 mph (72 and 145 km/h).
• The vehicle is on a straight or slightly curved road.
• The turn signals are off.
• The brake pedal is not depressed.
• The wipers are not in continuous operation.
• The vehicle is not accelera ting or braking, and the steering wheel is not being
turned.
• The system makes a determination that th e driver is not actively accelerating,
braking or steering.
■How the System Activates1 How the System Activates
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. 306
The RDM system may automa tically shut off and the
indicator comes and stays on.
2 Indicators P. 86
RDM system function can be impacted when the
vehicle is:
•Not driven within a traffic lane.
•Driven on the inside edge of a curve, or outside of
a lane.
•Driven in a narrow lane.
20 CLARITY PHEV-31TRW6200.book 399 ページ ２０１９年９月２４日　火曜日　午後１２時９分

uuWhen Driving uRoad Departure Mitigation (RDM) System
400
Driving
Press the RDM button to turn the system on
and off.
u The indicator in the button comes on and
the message appears on the driver
information interface when the system is
on.
The system may not properly detect lane ma rkings and the position of your vehicle
under certain conditions. Some examples of these conditions are listed below.
■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 la ne lines and the roadway surface.
• 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.
• 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.
■RDM On and Off1RDM On and Off
When you have selected Warning Only from the
customized options using the audio/information
screen, the system does not operate the steering
wheel and braking. 2 Customized Features P. 306
RDM Button
Indicator
■RDM Conditions and Limitations
20 CLARITY PHEV-31TRW6200.book 400 ページ ２０１９年９月２４日　火曜日　午後１２時９分

401
uuWhen Driving uRoad Departure Mitigation (RDM) System
Driving
■Roadway conditions
• Driving on a snowy or wet roadway (obs cured lane marking, vehicle tracks,
reflected lights, road spray, high contrast).
• Driving on a road with temporary lane markings.
• Faint, multiple, or varied lane markings are visible on the roadway due to road
repairs or old lane markings.
• The roadway has merging, split, or crossing lines (e.g., such as at an intersection
or crosswalk).
• The lane markings are extremel y narrow, wide, or changing.
• The vehicle in front of you is driving near the lane lines.
• The road is hilly or the vehicle is approaching the crest of a hill.
• Driving on rough or unpaved roads, or over bumpy surfaces.
• When objects on the road (curb, guard rail, pylons, etc.) are recognized as white
lines (or yellow lines).
• Driving on roads with double lines.
■Vehicle conditions
• Headlight lenses are dirty or the h eadlights are not properly adjusted.
• The outside of the windshield is streaked or blocked by dirt, mud, leaves, wet
snow, etc.
• The inside of the windshield is fogged.
• The camera temperature gets too high.
• An abnormal tire or wheel condition (wro ng sized, varied size or construction,
improperly inflated tire, etc.).
• The vehicle is tilted due to a heavy load or suspension modifications.
• When tire chains are installed.
20 CLARITY PHEV-31TRW6200.book 401 ページ ２０１９年９月２４日　火曜日　午後１２時９分

402
uuWhen Driving uAdaptive 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.
Be careful not to severely impact the radar sensor
cover.
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 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.
The radar sensor is
behind the emblem.
The camera is
located behind
the rearview
mirror.
20 CLARITY PHEV-31TRW6200.book 402 ページ ２０１９年９月２４日　火曜日　午後１２時９分

Continued403
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow
Driving
■How to activate the system1Adaptive Cruise Control (ACC) with Low Speed Follow
When the MAIN button is pressed, both ACC with
Low Speed Follow and the Lane Keeping Assist
System (LKAS) are either turned on or off.
ACC with Low Speed Follow may not work properly
under certain conditions.
2 ACC with Low Speed Follow Conditions
and Limitations P. 409
When not using ACC with Low Speed Follow: Turn
off adaptive cruise by pressing the MAIN button. This
also will turn off the Lane Keeping Assist System
(LKAS).
Do not use ACC with Low Speed Follow under the
following conditions:
•On roads with heavy traf fic or while 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.
How to use
■Press the MAIN button
on the steering wheel. ACC
(green) is on in the
instrument panel.
ACC with Low Speed
Follow is ready to use.
20 CLARITY PHEV-31TRW6200.book 403 ページ ２０１９年９月２４日　火曜日　午後１２時９分

404
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow
Driving
When driving at about 25 mph (40 km/h) or above: Take your foot off the
pedal and press the −/SET button when you reach the desired speed. The moment
you release the button, the set speed is fixed, and ACC with Low Speed Follow
begins.
When driving slower than about 25 mph (40 km/h): If the vehicle is moving
and the brake pedal is not depressed, pressing the button fixes the set speed to
about 25 mph (40 km/h) regardless of current vehicle speed. If your vehicle is
stationary, you can set the vehicle speed even with the brake pedal depressed.
■To Set the Vehicle Speed
On when ACC with
Low Speed Follow
begins
Press and release
−/SET Button
20 CLARITY PHEV-31TRW6200.book 404 ページ ２０１９年９月２４日　火曜日　午後１２時９分

405
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow
Continued
Driving
When ACC with Low Speed Follow starts
operating, the vehicle icon, interval bars and
set speed appear on th e driver information
interface.
When you use ACC with Low Speed Follow,
Straight Driving Assist (a feature of the Electric
Power Steering system) is activated.
By enabling the steering system to
automatically compensate for natural steering
pull, Straight Driving Assist makes it easier for
you to keep your vehicle in a straight line.
Set Vehicle Speed
Set Vehicle Interval
20 CLARITY PHEV-31TRW6200.book 405 ページ ２０１９年９月２４日　火曜日　午後１２時９分

uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow
406
Driving
■There is a vehicle ahead
ACC with Low Speed Follow monitors if a ve hicle ahead of you enters the ACC with
Low Speed Follow range. If a vehicle is detected doing so, the ACC with Low Speed
Follow system maintains or decelerates your vehicle’s set speed in order to keep the
vehicle’s set followi ng-interval from the vehicle ahead.
2To Set or Change Following-Interval P. 412
When a vehicle whose speed is slower than
your set speed is detected in front of you, your
vehicle starts to slow down.
■When in Operation1 When in Operation
If the vehicle ahead of you slows down abruptly, or if
another vehicle is detected cutting in front of you,
the beeper sounds, a message appears on the driver
information interface.
Depress the brake pedal, and keep an appropriate
interval from the vehicle ahead.
Even if the interval betw een your vehicle and the
vehicle detected ahead is short, ACC with Low Speed
Follow may start accelerati ng your vehicle under the
following circumstances:
•The vehicle ahead of you is going at almost the
same speed as, or faster than, your vehicle.
•A vehicle that cuts in front of you is going faster
than your vehicle, gradua lly increasing the interval
between the vehicles.
You can also set the system to beep when a vehicle
detected in front of you comes in and goes out of the
ACC with Low Speed Follow detecting range.
Change the ACC Forward Vehicle Detect Beep
setting.
2 Customized Features P. 306
Beep
ACC with Low Speed Follow Range: 394 ft. (120 m)
A vehicle icon appears on the
driver information interface
20 CLARITY PHEV-31TRW6200.book 406 ページ ２０１９年９月２４日　火曜日　午後１２時９分

Continued407
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow
Driving
■There is no vehicle ahead
Your vehicle maintains the set speed without
having to keep your foot on the brake or
accelerator pedal.
If there previously was a vehicle detected
ahead that kept your vehicle from traveling at
the set speed, ACC with Low Speed Follow
accelerates your vehicle to the set speed, and
then maintains it.
■When you depress the accelerator pedal
You can temporarily increase the vehicle speed . In this case, there is no audible or
visual alert even if a vehicle is in the ACC with Low Speed Follow range.
ACC with Low Speed Follow stays on unle ss you cancel it. Once you release the
accelerator pedal, the system resume s an appropriate speed for keeping the
following-interval while a vehicle ahead is within the ACC with Low Speed Follow
range.
1 When in Operation
Limitations
You may need to use the brake to maintain a safe
interval when using ACC with Low Speed Follow.
Additionally, ACC with Lo w Speed Follow may not
work properly under certain conditions.
2 ACC with Low Speed Follow Conditions
and Limitations P. 409
3WARNING
Exiting a vehicle that has been stopped
while the ACC with Low Speed Follow
system is operating can result in the vehicle
moving without operator control.
A vehicle that moves without operator
control can cause a crash, resulting in
serious injury or death.
Never exit a vehicle when the vehicle is
stopped by ACC with Low Speed Follow.
A vehicle icon with dotted-line
contour appears on the driver
information interface
1When you depress the accelerator pedal
While the accelerator pedal is depressed, the system
does not apply the brakes to keep the following
interval, as well as the BRAKE message on the driver
information interface does not appear.
20 CLARITY PHEV-31TRW6200.book 407 ページ ２０１９年９月２４日　火曜日　午後１２時９分

408
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow
Driving
■A vehicle detected ahead is within ACC with Low Speed Follow range and
slows to a stop Your vehicle also stops, automatically. The
Stopped message appears on the driver
information interface.
When the vehicle ahead of you starts again,
the vehicle icon on th e driver information
interface blinks. If you press the RES/+ or
−/SET button, or depress the accelerator
pedal, ACC with Low Speed Follow operates
again within the prior set speed.
20 CLARITY PHEV-31TRW6200.book 408 ページ ２０１９年９月２４日　火曜日　午後１２時９分