2019 Acura RDX Owner's Manual

uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
456
Driving
■How to activate the system1Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)
When the MAIN button is pressed, both ACC with
LSF and the Lane Keeping Assist System (LKAS) are
either turned on or off.
ACC with LSF may not work properly under certain
conditions. 2 ACC with LSF Conditions and Limitations
P. 461
When not using ACC with LSF: 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 LSF 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 LSF 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 LSF is ready to use.
19 ACURA RDX-31TJB6000.book 456 ページ ２０１８年４月２６日　木曜日　午後４時５１分

Continued457
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
When driving at about 25 mph (40 km/h) or above: Take your foot off the
pedal and press down the RES/+/SET/– switch when you reach the desired speed.
The moment you release the switch, the set speed is fixed, and ACC with LSF 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 switch fixes your 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.
When ACC with LSF starts operating, the
vehicle icon, interval bars and set speed
appear on the multi-information display.
When you use ACC with LSF, 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.
■To Set the Vehicle Speed1To Set the Vehicle Speed
You can switch the displayed set speed
measurements on the multi- information display or
audio/information screen between mph and km/h. 2 Speed/Distance Units P. 134
2 Customized Features P. 332
On when ACC with LSF
beginsPress and release
RES/+/SET/– switch
Set Vehicle Speed
Set Vehicle Interval
19 ACURA RDX-31TJB6000.book 457 ページ ２０１８年４月２６日　木曜日　午後４時５１分

uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
458
Driving
■There is a vehicle ahead
ACC with LSF monitors if a vehicle ahead of you enters the ACC with LSF range. If a
vehicle is detected doing so, the ACC with LSF system maintains or decelerates your
vehicle’s set speed in order to keep the vehicle’s set following-interval from the
vehicle ahead.
2 To Set or Change Following-interval P. 465
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 cuts in front of you, the beeper
sounds, a message appears on the multi-information
display, and the head-up warning lights
* flash.
Depress the brake pedal, and keep an appropriate
interval from the vehicle ahead.
Beep
ACC with LSF Range: 394 ft. (120 m)
A vehicle icon appears on the
multi-information display.
* Not available on all models
19 ACURA RDX-31TJB6000.book 458 ページ ２０１８年４月２６日　木曜日　午後４時５１分

Continued459
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
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 LSF 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 vehicl e is in the ACC with LSF range.
ACC with LSF stays on unless you cancel it . Once you release the accelerator pedal,
the system resumes an appropriate speed for keeping the following interval while a
vehicle ahead is within the ACC with LSF range.
1 When in Operation
Even if the interval betw een your vehicle and the
vehicle detected ahead is short, ACC with LSF may
start accelerating 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 in
front of you comes in and goes out of the ACC with
LSF detecting range. Change the ACC Forward
Vehicle Detect Beep setting. 2 Customized Features P. 332
Limitations
You may need to use the brake to maintain a safe
interval when using ACC wi th LSF. Additionally, ACC
with LSF may not work properly under certain
conditions. 2 ACC with LSF Conditions and Limitations
P. 461
A vehicle icon with dotted-line
contour appears on the multi-
information display.
19 ACURA RDX-31TJB6000.book 459 ページ ２０１８年４月２６日　木曜日　午後４時５１分

uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
460
Driving
■A vehicle detected ahead is within ACC with LSF range and slows to a stop
Your vehicle also stop s, automatically. The
Stopped message appears on the multi-
information display.
When the vehicle ahead of you starts again,
the vehicle icon on the multi-information
display blinks. If you press the RES/+/SET/–
switch up or down, or depress the accelerator
pedal, ACC with LSF operates again within the
prior set speed.
If no vehicle is ahead of you before you
resume driving, depress the accelerator pedal
and ACC with LSF will operate again within
the prior set speed.1 A vehicle detected ahead is with in ACC with LSF range and slows
to a stop
3WARNING
Exiting a vehicle that has been stopped
while the ACC with LSF 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 ve hicle when the vehicle is
stopped by ACC with LSF.
19 ACURA RDX-31TJB6000.book 460 ページ ２０１８年４月２６日　木曜日　午後４時５１分

Continued461
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
The system may automatically shut off and the ACC with LSF indicator will come on
under certain conditions. Some examples of these conditions are listed below. Other
conditions may reduce some of the ACC with LSF functions.
■Environmental conditions
Driving in bad weather (r ain, fog, snow, etc.).
■Roadway conditions
Driving on a snowy or wet roadway (obscure d lane marking, vehicle tracks, reflected
lights, road spra y, high contrast).
■Vehicle conditions
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• An abnormal tire or wheel condition (Wro ng sized, varied size or construction,
improperly inflated, compact spare tire
*, etc.).
• The camera temperature gets too high.
• The parking brake is applied.
• When the radar sensor cover is dirty.
• The vehicle is tilted due to a heavy load or suspension modifications.
• When tire chains are installed.
■ACC with LSF Conditions and Limitations1ACC with LSF Conditions and Limitations
For directions on the prop er handling of the radar
sensor, refer to the following page.
2 Radar Sensor P. 485
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 483
Have your vehicle checked by a dealer if you find any
unusual behavior of the system (e.g., the warning
message appears too frequently).
* Not available on all models
19 ACURA RDX-31TJB6000.book 461 ページ ２０１８年４月２６日　木曜日　午後４時５１分

462
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
■Detection limitations
• A vehicle suddenly crosses in front of you.
• The interval 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.
• When you accelerate rapidly and approach the vehicle ahead of you at high
speed.
• The vehicle ahead of you is a motorcycle, bicycle, mobility scooter, or other small
vehicle.
• When there are animals in front of your vehicle.
• When you drive on a curved or winding or undulating road that makes it difficult
for the sensor to properly dete ct a vehicle in front of you.
• The speed difference between your vehicl e and a vehicle in front of you is
significantly large.
• An oncoming vehicle suddenly comes in front of you.
• Your vehicle abruptly crosses over in front of an oncoming vehicle.
19 ACURA RDX-31TJB6000.book 462 ページ ２０１８年４月２６日　木曜日　午後４時５１分

463
uuAcuraWatchTMuAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Continued
Driving
• When driving through a narrow iron bridge.
• When the vehicle ahead of you brakes suddenly.
• When the vehicle ahead of you has a unique shape.
• When your vehicle or the vehicle ahead of you is driving on one edge of the lane.
Radar detects upper section of
an empty carrier truck. Panel truck, tanker
truck, etc.
19 ACURA RDX-31TJB6000.book 463 ページ ２０１８年４月２６日　木曜日　午後４時５１分