brake Acura RLX 2014 Service Manual

362
uuWhen DrivinguAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
*
Driving
The ACC with LSF automatic cancellation can be also triggered by the following
causes. In these cases, the parking brake will be automatically applied.
•The driver’s seat belt is unfastened when the vehicle is stationary.
•The vehicle stops for more than 10 minutes.
•The engine is turned off.

364
uuWhen DrivinguForward Collision Warning (FCW)
*
Driving
Forward Collision Warning (FCW)
*
Alerts you when it detects the possibility of your vehicle colliding with the vehicle in
front of yours.
If the system determines a collision is possible, it gives both visual and audible alerts.
uTake appropriate action to prevent a collision (apply the brakes, change lanes,
etc.).■How the system works
The system may give warnings of potential collisions when your vehicle speed is
above 10 mph (15 km/h).
1Forward Collision Warning (FCW)
*
Important Safety Reminder
FCW cannot detect all objects ahead and may not
detect a given object; accuracy of the system will vary
based on weather, speed and other factors. FCW
does not include a braking function. It is always your
responsibility to safely operate the vehicle and avoid
collisions.
You can change the Forward Collision Warning
Distance setting or turn the system on and off.
2Customized Features P. 102, 264
For the FCW system to work properly:
The camera is shared with Lane Departure Warning
(LDW).
2LDW Camera P. 368
LONG
NORMAL
SHORT
Your Vehicle Vehicle Ahead You can set Long, Normal or Short for when warnings start:
* Not available on all models

Continued
365
uuWhen DrivinguForward Collision Warning (FCW)
*
Driving
■Automatic shutoff
FCW may automatically shut itself off and the FCW indicator comes and stays on when:
•The temperature inside the system is high.
•The windshield is blocked by dirt, mud, leaves, wet snow, etc.
Once the conditions that caused FCW to shut off improve or are addressed (e.g.,
cleaning), the system comes back on.
1Forward Collision Warning (FCW)
*
Never apply a film or attach any objects to the
windshield that could obstruct the FCW camera’s
field of vision.
Scratches, nicks, and other damage to the windshield
within the FCW camera’s field of vision can cause the
system to operate abnormally. If this occurs, we
recommend that you replace the windshield with a
genuine Acura replacement windshield. Making even
minor repairs within the camera’s field of vision or
installing an aftermarket replacement windshield
may also cause the system to operate abnormally.
After replacing the windshield, have a dealer
recalibrate the camera. Proper calibration of the FCW
camera is necessary for the system to operate
properly.
BeepThe camera is located
behind the rearview mirror.
The beeper sounds and the BRAKE message
appears in the multi-information display until
a possible collision is avoided.
Models with
navigation system
Models without
navigation system
1Automatic shutoff
To help reduce the likelihood that high interior
temperatures will cause the camera system to shut off,
when parking, find a shady area or face the front of the
vehicle away from the sun. Also, do not use a reflective
sun shade that can concentrate heat on the camera.
If the Can Not Operate: Camera Too Hot/CAN
NOT OPERATE message appears:•Use the climate control system to cool down the
interior and, if necessary, the defroster mode when
windows are fogged.•Start driving the vehicle to lower the windshield
temperature, which cools down the area around
the FCW camera.
* Not available on all models

366
uuWhen DrivinguForward Collision Warning (FCW)
*
Driving
FCW may not activate or may not detect a vehicle in front of your vehicle, and may
activate even when you are aware of a vehicle ahead of you, or when there is no
vehicle ahead, under the following conditions.■
FCW Limitations
Condition
●The distance 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.●A vehicle suddenly crosses in front of you.●When either your vehicle or the vehicle ahead of you accelerates rapidly.●The vehicle ahead of you is a motorcycle, a small vehicle, or a unique vehicle such as a tractor.●When you drive off-road or on a mountain road, or curved and winding road for an extended period that makes it difficult for the sensor/camera to
properly detect a vehicle in front of you.●When there are pedestrians or animals in front of your vehicle.●When you drive in bad weather (rain, fog, etc.).●A heavy load in the rear or modifications to the suspension tilts your vehicle.●An abnormal tire condition is detected (wrong tire size, flat tire, etc.).●When the windshield is blocked by dirt, mud, leaves, wet snow, etc.●When the temperature inside the system is high.●A sudden change between light and dark such as an entrance or exit of a tunnel.●You drive into the sunlight (e.g. at dawn or dusk).●When the windshield is dirty or cloudy.●When streetlights are perceived as the taillight of a vehicle in front of yours.●When driving at night, the vehicle ahead of you is running with either taillight bulb burned out.●When you drive in the shadows of trees, buildings, etc.

367
uuWhen DrivinguLane Departure Warning (LDW)
Continued
Driving
Lane Departure Warning (LDW)Alerts you when the system detects a possibility of your vehicle unintentionally
crossing over detected lane markings.
If your vehicle is getting too close to detected
left or right side lane markings without a turn
signal activated, LDW will give audible and
visual alerts.
The beeper sounds and the Lane Departure
message appears on the multi-information
display, letting you know that you need to
take appropriate action.
The system begins to search for lane markings when all the following conditions are met:
•The vehicle is traveling between at 40-90 mph (64-145 km/h).
•The vehicle is on a straight or slightly curved road.
•The turn signals are off.
•The brake pedal is not depressed.■
How the System Works
1Lane Departure Warning (LDW)
Important Safety Reminder
Like all assistance systems, LDW has limitations.
Over-reliance on LDW may result in a collision. It is
always your responsibility to keep the vehicle within
your driving lane.
LDW only alerts you when lane drift is detected
without a turn signal in use. LDW 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.
Models with
navigation
system
Models without
navigation
system
■
How the System Activates
1How the System Activates
LDW may automatically shut off and the LDW
indicator comes and stays on.
2Indicators P. 80

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371
uuWhen DrivinguLane Keeping Assist System (LKAS)
*
Driving
The system can be used when the following conditions are met.
•The lane 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 45 – 90 mph (72 – 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.
uThe LKAS is on in the multi-information
display.
The system is ready to use.
2.Press the LKAS button.
uLane outlines appear on the multi-
information display.
The system is activated.■
When the System can be Used
1Lane Keeping Assist System (LKAS)
*
•Shadows of adjacent objects are parallel to lane
markings.•The windshield is dirty.•Where the roadway has crossing or other lines
(e.g., such as at an intersection).
1LKAS camera
Never apply a film or attach any objects to the
windshield that could obstruct the LKAS camera’s
field of vision.
Scratches, nicks, and other damage to the windshield
within the LKAS camera’s field of vision can cause the
system to operate abnormally. If this occurs, we
recommend that you replace the windshield with a
genuine Acura replacement windshield. Making even
minor repairs within the camera’s field of vision or
installing an aftermarket replacement windshield
may also cause the system to operate abnormally.
After replacing the windshield, have a dealer
recalibrate the camera. Proper calibration of the LKAS
camera is necessary for the system to operate properly.
If the Can Not Operate: Camera Too Hot message
appears:•Use the climate control system to cool down the
interior and, if necessary, the defroster mode when
windows are fogged.•Start driving the vehicle to lower the windshield
temperature, which cools down the area around
the LKAS camera.
1When the System can be Used
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

373
uuWhen DrivinguLane Keeping Assist System (LKAS)
*
Continued
Driving
■The system operation is suspended if
you:
•Set the wipers to continuous operation.
uTurning the wipers off resumes the
LKAS.
•Decrease the vehicle speed to 40 mph (64
km/h) or less.
uIncreasing the vehicle speed to 45 mph
(72 km/h) or more resumes the LKAS.
•Depress the brake pedal.
uThe 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.
•The camera temperature gets extremely high or low.
Once these conditions no longer exist, the LKAS automatically resumes.When the LKAS is suspended,
the lane lines on the multi-
information display change to
contour lines, and the beeper
sounds.

375
uuWhen DrivinguVehicle Stability Assist (VSA®), aka Electronic Stability Control (ESC), System
Continued
Driving
Vehicle Stability Assist (VSA®), aka Electronic Stability Control (ESC), SystemVSA® helps to stabilize the vehicle during cornering if the vehicle turns more or less
than what was intended. It also assists in maintaining traction on slippery surfaces.
It does so by regulating engine output and selectively applying the brakes.
When VSA® activates, you may notice that the
engine does not respond to the accelerator.
You may also notice some noise from the
hydraulic system. You will also see the
indicator blink.■
VSA® Operation
1Vehicle Stability Assist (VSA®), aka Electronic Stability Control (ESC), System
The VSA® may not function properly if tire type and
size are mixed. Make sure to use the same size and
type of tire, and the air pressures as specified.
When the VSA® system indicator comes on and stays
on while driving, there may be a problem with the
system. While this may not interfere with normal
driving, have your vehicle checked by a dealer
immediately.
VSA® cannot enhance stability in all driving situations
and does not control the entire braking system. You
still need to drive and corner at speeds appropriate
for the conditions and always leave a sufficient
margin of safety.
The main function of the VSA® system is generally
known as Electronic Stability Control (ESC). The
system also includes a traction control function.
VSA® System
Indicator

377
uuWhen DrivinguAgile Handling Assist System
Driving
Agile Handling Assist SystemLightly brakes each of the front and rear wheels, as needed, when you steer the
wheel, and helps support the vehicle’s stability and performance during cornering.Precision All Wheel Steer SystemMonitors road conditions while you are driving. In response to current driving
conditions, the system automatically makes slight adjustment to the relative rear
wheel toe settings to help enhance vehicle control and stability.
1Agile Handling Assist System
The agile handling assist system cannot enhance
stability in all driving situations. You still need to drive
and corner at speeds appropriate for the conditions
and always leave a sufficient margin of safety.
When the VSA® system indicator comes on and stays
on while driving, the agile handling assist system
does not activate.
You may hear a sound coming from the engine
compartment while the system is activated. This is
normal.1Precision All Wheel Steer System
The Precision All Wheel Steer System cannot enhance
vehicle control and stability in all driving situations.
You still need to drive and corner at speeds
appropriate for the conditions and always leave a
sufficient margin of safety.
The toe setting of the rear wheels may get stuck in a
non-centered setting if the system malfunctions
while driving. This can cause the vehicle to pull to a
side even as you keep the steering wheel in the
center position. If this occurs, the system
automatically limits the vehicle speed to a maximum
of 50 mph (80 km/h). Reduce your speed and be
extra cautious, as handling may be difficult. Go to a
dealer immediately.

384Driving
BrakingBrake SystemUse the parking brake to keep the vehicle stationary when parked. You can
manually apply and release, or automatically release it.■Manual operations
Use the electric parking brake switch to apply or release the brake. Manually
releasing the parking brake using the switch helps your vehicle start slowly and
smoothly when facing down hill on steep hills.
■To apply manually
Pull the electric parking brake switch up gently
and securely.
uThe electric parking brake indicator
comes on.■To release manually
1.Depress the brake pedal.
2.Press the electric parking brake switch.
uThe electric parking brake indicator goes
off.
■
Parking Brake
1Parking Brake
You may hear the electric parking brake system
motor operating from the rear wheel area when you
apply or release the parking brake, or set the power
mode to OFF. This is normal.
The brake pedal may slightly move due to the electric
parking brake system operation when you apply or
release the parking brake. This is normal.
You cannot apply or release the parking brake if the
battery goes dead.
2Jump Starting P. 475
If you pull up the electric parking brake switch while
driving, the parking brake is applied.
In the following situations, the parking brake
automatically operates.•When the vehicle stops more than 10 minutes
while ACC with LSF is activated.•When the driver’s seat belt is unfastened while
your vehicle is stopped automatically by ACC with
LSF.•When the engine is turned off while ACC with LSF
is activated.•When the vehicle stops with the automatic brake
hold system activated for more than 10 minutes.
Electric Parking
Brake SwitchElectric Parking
Brake Switch