Page 489 of 657

488
uuAcuraWatchTMuRoad 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 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.
• 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 headlights are not properly adjusted.
• The outside of the windshield is streake d 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 (wrong sized, varied size or construction,
improperly inflated, compact spare tire
*, etc.).
• The vehicle is tilted due to a heav y load or suspension modifications.
• When tire chains are installed.
• The vehicle is towing a trailer.
* Not available on all models
20 ACURA RDX-31TJB6111.book 488 ページ 2020年2月11日 火曜日 午後2時6分
Page 490 of 657

489
uuAcuraWatchTMuFront Sensor Camera
Continued
Driving
Front Sensor Camera
The camera, used in systems such as LK AS, RDM, ACC with Low Speed Follow, and
CMBSTM, is designed to detect an object that triggers any of the systems to operate
its functions.
This camera is located behind the rearview
mirror.
To help reduce the likelihood that high interior
temperatures will cause the camera’s sensing
system to shut off, when parking, find a shady
area or face the front of the vehicle away from
the sun. If you use a reflective sun shade, do
not allow it to cover the camera housing.
Covering the camera can concentrate heat on
it.
■Camera Location and Handling Tips
1Front Sensor Camera
Never apply a film or attach any objects to the
windshield, the hood, or th e front grille that could
obstruct the camera’s fiel d of vision and cause the
system to operate abnormally.
Scratches, nicks, and othe r damage to the windshield
within the camera’s fiel d of vision can cause the
system to operate abnormall y. If this occurs, we
recommend that you replac e the windshield with a
genuine Acura replacement windshield. Making even
minor repairs within the ca mera’s field of vision or
installing an aftermarke t replacement windshield
may also cause the system to operate abnormally.
After replacing the winds hield, have a dealer
recalibrate the camera. Pr oper calibration of the
camera is necessary for the system to operate
properly.
Do not place an object on the top of the instrument
panel. It may reflect onto the windshield and prevent
the system from detecting lane lines properly.
Front Sensor
Camera
20 ACURA RDX-31TJB6111.book 489 ページ 2020年2月11日 火曜日 午後2時6分
Page 491 of 657
uuAcuraWatchTMuFront Sensor Camera
490
Driving
1Front Sensor Camera
If the Some Driver Assist Systems Cannot
Operate: Camera Temperature Too High message
appears:
•Use the climate control system to cool down the
interior and, if necessary, also use defroster mode
with the airflow directed towards the camera.
•Start driving the vehicle to lower the windshield
temperature, which cool s down the area around
the camera.
If the Some Driver Assist Systems Cannot
Operate: Clean Front Windshield message
appears:
•Park your vehicle in a sa fe place, and clean the
windshield. If the message does not disappear after
you have cleaned the windshield and driven for a
while, have your vehicle checked by a dealer.
20 ACURA RDX-31TJB6111.book 490 ページ 2020年2月11日 火曜日 午後2時6分
Page 492 of 657

491
uuAcuraWatchTMuRadar Sensor
Driving
Radar Sensor
The radar sensor is behind the emblem.1Radar Sensor
Avoid strong impacts to the radar sensor cover.
For the CMBS
TM to work properly:
•Always keep the radar sensor cover clean.•Never use chemical solvents or polishing powder
for cleaning the sensor cove r. Clean it with water
or a mild detergent.
•Do not put a sticker on th e radar sensor cover or
replace the radar sensor cover.
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 using the CMBS
TM
off button and take your vehicle to a dealer.
2 CMBS
TM On and Off P. 453
If the vehicle is involved in any of the following
situations, the radar sensor may not work properly.
Have your vehicle checked by a dealer:
•Your vehicle is involved in a frontal collision•Your vehicle drives th rough deep water or is
submerged in deep water
•Your vehicle strongly strikes a bump, curb, chock,
or embankment that co uld jar the radar sensor
Radar
Sensor
The radar sensor is
behind the emblem.
20 ACURA RDX-31TJB6111.book 491 ページ 2020年2月11日 火曜日 午後2時6分
Page 493 of 657

492
Driving
Braking
Brake System
Use the parking brake to keep the vehicle stationary when parked. When the
parking brake is applied, you can ma nually or automatically release it.
■To apply
The electric parking brake can be applied any
time the vehicle has battery, no matter which
position the power mode is in.
Press the electric parking brake switch gently
and securely. u The indicator in the switch comes on.
u The Parking Brake and Brake System
indicator (red) comes on.
■Parking Brake1Brake System
When you depress the brak e pedal, you may hear a
whirring sound coming from the engine
compartment while the brake system activates. This is
normal.
1 Parking Brake
You may hear the electric parking brake system
motor operating from the re ar wheel area when you
apply or release the parking brake. This is normal.
The brake pedal may slightly move due to the electric
parking brake system opera tion when you apply or
release the parking br ake. This is normal.
You cannot apply or release the parking brake if the
battery goes dead.
2 Jump Starting P. 610
If you press and hold the electric parking brake
switch while driving, the brakes on all four
wheels are applied by the VSA ® system until the
vehicle comes to a stop. The electric parking
brake then applies, and the switch should be
released.Electric Parking
Brake Switch
20 ACURA RDX-31TJB6111.book 492 ページ 2020年2月11日 火曜日 午後2時6分
Page 494 of 657

Continued493
uuBraking uBrake System
Driving
■Automatic parking br ake feature operation
If the automatic parking brake feature has been activated:
• The parking brake is applied automatically when you set the power mode to
VEHICLE OFF.
• To confirm that the parking brake is applied, check if the Parking Brake and Brake
System indicator (red) is on.
2 Activating and deactivating the automatic parking brake feature P. 495
■To release
The power mode must be in ON in order to
release the electric parking brake.
1. Depress the brake pedal.
2. Pull the electric parking brake switch up
gently and securely.
u The indicator in the switch goes off.
u The Parking Brake and Brake System
indicator (red) goes off.
Manually releasing the parking brake using
the switch helps your vehicle start slowly and
smoothly when facing down hill on steep hills.
1 Parking Brake
In the following situations, the parking brake
automatically operates.
•When the vehicle stops more than 10 minutes
while ACC with Low Speed Follow is activated.
•When the driver’s seat belt is unfastened while
your vehicle is stopped au tomatically by ACC with
Low Speed Follow.
•When the engine is turned off, except by Auto Idle
Stop system, while ACC with Low Speed Follow is
activated.
•When the vehicle stops with the automatic brake
hold system activated for more than 10 minutes.
•When the driver’s seat belt is unfastened while
your vehicle is stopped a nd automatic brake hold is
applied.
•When the engine is turned off, except by Auto Idle
Stop system, while automatic brake hold system is
applied.
•When there is a problem with the automatic brake
hold system while Automatic Brake Hold is applied.
Electric Parking
Brake Switch
20 ACURA RDX-31TJB6111.book 493 ページ 2020年2月11日 火曜日 午後2時6分
Page 495 of 657

uuBraking uBrake System
494
Driving
■To release automatically
Depressing the accelerator pedal releases the parking brake.
Use the accelerator pedal to release th e brake when you are starting the vehicle
facing uphill, or in a traffic jam.
Gently depress the accelerator pedal.
When on a hill, it may require more
accelerator input to release.u The Parking Brake and Brake System
indicator (red) goes off.
You can release the parki ng brake automatically when:
• You are wearing the driver’s seat belt.
• The engine is running.
• The transmission is not in
(P or (N.
1Parking Brake
If the parking brake cannot be released
automatically, release it manually.
When the vehicle is travel ing uphill, the accelerator
pedal may need to be pressed farther to
automatically release the electric parking brake.
The parking brake cannot be released automatically
while the following indicators are on:
•Malfunction indicator lamp•Transmission system indicator
The parking brake may not be released automatically
while the following indicators are on:
•Electric parking brak e system indicator
•VSA® system indicator•ABS indicator
•Supplemental restraint system indicator
Accelerator Pedal
20 ACURA RDX-31TJB6111.book 494 ページ 2020年2月11日 火曜日 午後2時6分
Page 496 of 657

Continued495
uuBraking uBrake System
Driving
■Activating and deactivating the automatic parking brake feature
With the power mode is in ON, carry out th e following steps to either activate or
deactivate the automatic parking brake feature.
1. Put the transmission into
(P.
2. Without depressing the brake pedal, pres s and release the parking brake switch.
u Check that the Parking Brake and Brake System indicator (red) has come on.
3. Press and hold the parking brake switch. Wh en you hear a beeping sound, release
the switch and within 3 seconds pull up and hold the switch again.
4. When you hear a sound indicating that the procedure is completed, release the
switch.
u Two beeps indicates that the feature has been activated.
u One beep indicates that the feature has been deactivated.
u When you have completed activating the feature, the parking brake will
remain applied after you turn off the engine.
u To confirm that the park ing brake is applied, check if the Parking Brake and
Brake System indicator (red) is on.
If you need to temporarily deactivate th e feature for when putting your vehicle
through a conveyor type car wash, you can follow the procedure explained below.
1. Depress the brake pedal and bring the vehicle to a stop.
2. Set the power mode to VEHICLE OFF and then within 2 seconds pull up the
parking brake switch.
u Activation and deactivation settings for the feature will not be affected.
u Before temporarily deactivating the feat ure, make sure to first turn off both
ACC with Low Speed Follow and the automatic brake hold system.
u To confirm that the park ing brake is applied, check if the Parking Brake and
Brake System indicator (red) is on.
1 Parking Brake
In cold climates, the parking brake may freeze in
place if applied.
When parking the vehicle, chock the wheels and
make sure the automatic parking brake feature is
deactivated.
Also, when putting your vehicle through a conveyor-
type car wash or when ha ving your vehicle towed,
deactivate the automatic parking brake feature and
leave the parking brake released.
20 ACURA RDX-31TJB6111.book 495 ページ 2020年2月11日 火曜日 午後2時6分