2015 Acura TLX Owner's Manual

uuWhen Driving uRoad Departure Mitigation (RDM) System
*
376Driving
The system becomes ready to start searching 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 accelerating or braking, and the steering wheel is not being
turned.
• The system makes a determination that the driver is not actively accelerating,
braking or steering.■
How the System Activates
1How the System Activates
The RDM system may automatically shut off and the
indicator comes and stays on.
2 Indicators P. 87

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377
uuWhen Driving uRoad Departure Mitigation (RDM) System
*
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 multi-
information display when the system is
on.
■
RDM On and Off
1RDM On and Off
When you have selected Warning Only from the
customized options using the multi-information
display, the system does not operate the steering
wheel and braking.
RDM Button
Indicator

378
uuWhen Driving uRoad Departure Mitigation (RDM) System
*
Driving
The system may not properly detect lane markings 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 lane 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 interior of the front windshield.■Roadway conditions
• Driving on a snowy or wet roadway (obscured 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 over bumps.■
RDM Conditions and Limitations

379
uuWhen Driving uRoad Departure Mitigation (RDM) System
*
Driving
■Vehicle conditions
• Headlight lenses are dirty or the headlights are not properly adjusted.
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• The inside of the windshield is fogged.
• The camera temperature gets too hot.
• An abnormal tire or wheel condition (wrong sized, varied size or construction,
improperly inflated, compact spare tire
*, etc.).
• The vehicle is tilted due to a heavy load or suspension modifications.
* Not available on all models

380
uuWhen Driving uLane 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 audible and visual alerts if the vehicle 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 a
substitute for your vehicle 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. 113
LKAS only alerts you when lane drift is detected
without a turn signal in use. 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 is convenient when it is used on freeways.
The LKAS may not work properly or may work
improperly under the certain conditions: 2 LKAS Conditions and Limitations P. 384
Normal or Wide selected.
Rapid vibrations on the steering
wheel and a warning display alert
you that the vehicle is drifting out
of a detected lane.Models with RDM
Warning Only selected.
Beeps and a warning display alert you
that the vehicle is drifting out of a
detected lane.Models with LDWModels with RDMWhen you operate the turn signals to change 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.
■LKAS camera
Monitors the lane
lines
* Not available on all models

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381
uuWhen Driving uLane Keeping Assist System (LKAS)
*
Driving
The system can be used when the fo llowing conditions are met.
• The lane in which you are driving has detectable lane markers on both sides, and
your vehicle is in the center of the lane.
• The vehicle speed is 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 continuous operation.■How to activate the system
1.Press the MAIN button.
u The LKAS is on in the multi-information
display.
The system is ready to use.
2. Press the LKAS button.
u Lane outlines appear on the multi-
information display.
The system is activated.■
When the System can be Used
1Lane Keeping Assist System (LKAS)
*
You can read about handling information for the
camera equipped with this system.
2 Front Sensor Camera
* P. 351
If the vehicle drifts toward either left or right lane line
due to the system applying torque, turn off the LKAS
and have your vehicle checked by a dealer.
MAIN Button
LKAS Button
* Not available on all models

uuWhen Driving uLane Keeping Assist System (LKAS)
*
382Driving
3. Keep your vehicle near the center of the
lane while driving.
u The dotted outer lines change to solid
ones once the system starts operating
after detecting the left and right lane
markings.
To cancel the LKAS:
Press the MAIN or 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.
Models with ACC is shown.
■
To cancel
1 When the System can be Used
The LKAS temporarily deactivates when it fails to
detect lane lines. When the system detects the lines
again, it comes back on automatically.1To cancel
Pressing the MAIN button also turns ACC with LSF
on and off.
Pressing the MAIN button also turns cruise control
on and off.Models with ACCModels without ACC
MAIN ButtonLKAS Button

383
uuWhen Driving uLane Keeping Assist System (LKAS)
*
Continued
Driving
■The system operation is suspended if
you:
• Set the wipers to continuous operation.
u Turning the wipers off resumes the
LKAS.
• 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 automatically be suspended when:
• The system fails to detect lane lines.
• The steering wheel is quickly turned.
• You fail to steer the vehicle.
• The vehicle runs on a curved road over the speed limit.
Once these conditions no longer exist, the LKAS automatically resumes.■The LKAS may automatically be canceled when:
• The camera temperature gets too high.
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.When the LKAS is suspended,
the lane lines on the multi-
information display change to
contour lines, and the beeper
sounds.