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522
uuAcuraWatchTMuLane Keeping Assist System (LKAS)
Driving
Lane Keeping Assist System (LKAS)
Provides steering input to help keep the vehicle in the middle of a detected lane and
provides tactile and visual alerts if the ve hicle is detected drifting out of its lane.1Lane Keeping Assist System (LKAS)
Important Safety Reminders
The LKAS is for your convenience only. It is not an
autonomous driving system and always requires
driver attention and control. The system does not
work if you take your hands off the steering wheel or
fail to steer the vehicle. 2 Multi-Information Display Warning and
Information Messages P. 107
The LKAS is convenient when it is used on
expressways or freeways.
Do not place objects on the instrument panel.
Objects may reflect on th e windshield and prevent
correct detection of the traffic lanes.
The LKAS only alerts you when lane drift is detected
without a turn signal in use. The LKAS may not detect
all lane markings or lane departures; accuracy will
vary based on weather, speed, and lane marker
condition.
It is always your responsibility to safely operate the
vehicle and avoid collisions.
The LKAS may not work properly or may work
improperly under the certain conditions: 2 LKAS Conditions and Limitations P. 527
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 541
When you operate the turn signals to chan ge lanes, the system is suspended, and
resumes after the signals are off.
If you make a lane change without operating the turn signals, the LKAS alerts
activate, and torque is applied to the steering.
■Front Sensor Camera
Monitors the lane
lines.■Tactile and visual alerts
Rapid vibrations on the steering
wheel and a warning display alert
you that the vehicle is drifting out of
a detected lane.
■Steering input assist
The system applies torque to the steering to keep the vehicle between the left and
right lane lines. The applied torque become s stronger as the vehicle gets closer to
either of the lane lines.
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Continued523
uuAcuraWatchTMuLane Keeping Assist System (LKAS)
Driving
Provides assistance to keep the vehicle in the center of the lane. When the vehicle
nears a white or yellow line, steering force of the electric power steering will become
stronger.
When the vehicle enters the warning area, the LKAS alerts you with slight steering
wheel vibration as well as a warning display.
■Lane Keep Support Function1 Lane Keeping Assist System (LKAS)
The LKAS may not function as designed while driving
in frequent stop and go traf fic, or on roads with
sharp curves.
When it fails to detect lanes, the system will
temporarily be canceled. When a lane is detected, the
system will recover automatically.
■Lane Departure Warning Function
Warning Area
Warning Area
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uuAcuraWatchTMuLane Keeping Assist System (LKAS)
524
Driving
The system can be used when the following conditions are met.
• The lane in which you are driving has dete ctable lane markers on both sides, and
your vehicle is in the center of the lane.
• The vehicle is traveling between about 45 and 90 mph (72 and 145 km/h).
• You are driving on a straight or slightly curved road.
• The turn signals are off.
• The brake pedal is not depressed.
• The wipers are not in high speed operation.
■How to activate the system
1.Press the LKAS button.
u LKAS indicator (white) and lane outlines
appear on the multi-information display.
The system is ready to use.
■When the System can be Used1When the System can be Used
If the vehicle drifts toward ei ther left or right lane line
due to the system applying torque, turn off the LKAS
and have your vehicle checked by a dealer.
LKAS Button
(white)
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525
uuAcuraWatchTMuLane Keeping Assist System (LKAS)
Continued
Driving
2. Keep your vehicle near the center of the
lane while driving.
u The LKAS indicator changes from white
to green and the lane outlines change to
solid ones once the system starts
operating after detecting the left and
right lane markings.
Press the LKAS button.
The LKAS is turned off every time you stop the
engine, even if you turned it on the last time
you drove the vehicle. (green) is on.
■To Cancel
LKAS Button
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uuAcuraWatchTMuLane Keeping Assist System (LKAS)
526
Driving
■The system operation is suspended if
you:
• Set the wipers to HI.
u Turning the wipers off or setting it to LO
resumes the LKAS.
• Set the wiper switch to AUTO and the
wipers operate at high speed.
u The LKAS resumes when the wipers stop
or operate at low speed.
• Decrease the vehicle speed to about 40 mph
(64 km/h) or less.
u Increasing the vehicle speed to about
45 mph (72 km/h) or more resumes the
LKAS.
• Depress the brake pedal.
u The LKAS resumes and starts detecting
the lane lines again once you release the
brake pedal.
■The LKAS may be automa tically suspended when:
• The system fails to detect lane lines.
• The steering wheel is quickly turned.
• You fail to steer the vehicle.
• Driving through a sharp curve.
• Driving at a speed in excess of approximately 90 mph (145 km/h).
Once these conditions no longer exis t, the LKAS automatically resumes.
1The system operation is suspended if you:
You can change the setting for the LKAS.
LKAS suspended beep on and off can be selected.
2 Customized Features P. 359
When the LKAS is suspended,
the lane lines on the multi-
information display change to
lane outlines, and the beeper
sounds (if activated). (white) is on.
Models with automatic intermittent wipers
All models
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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
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528
uuAcuraWatchTMuLane Keeping Assist System (LKAS)
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 extremely 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.
Faded lines Duplicate lines Tire tracks
Very wide or narrow traffic lane
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529
uuAcuraWatchTMuLane Keeping Assist System (LKAS)
Driving
• When objects on the road (curb, guard rail, pylons, etc.) are recognized as white
(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 (inco rrect sizes, varied sizes or construction,
improperly inflated, compact spare tire
*, etc.).
• The vehicle is tilted due to a heavy load or suspension modifications.
• The vehicle is towing a trailer.
Lane void of lines at exit or
interchange
* Not available on all models
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