2018 Acura RLX HYBRID Owner's Manual

uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
408
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 th e vehicle speed. In this case, there is no audible or
visual alert even if a vehicle 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.
■A vehicle detected ahead is within AC C 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.
1 When in Operation
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. 409
A vehicle icon with dotted-line
contour appears on the multi-
information display
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 vehicle when the vehicle is
stopped by ACC with LSF.
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uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
The system may automatically shut off and the ACC indicator will come on under
certain conditions. Some examples of thes e conditions are listed below. Other
conditions may reduce some of the ACC functions.
2 Front Sensor Camera P. 402
■Environmental conditions
• Driving in bad weather (rain, fog, snow, etc.).
■Roadway conditions
• Driving on a snowy or wet roadway (obs cured lane marking, vehicle tracks,
reflected lights, road spray, 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 front grille 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
The radar sensor for ACC with LSF is shared with the
Collision Mitigati on Braking System
TM (CMBSTM).
2 Collision Mitigation Braking SystemTM
(CMBSTM) P. 460
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 402
Always keep the radar sensor cover clean.
Never use chemical solvents or polishing powder for
cleaning the sensor cover. Clean it with water or a
mild detergent.
Do not put a sticker on the 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 pressing the MAIN
button and take your vehicle to a dealer.
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
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uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
410
Driving
■Detection limitations
• A vehicle or pedestrian suddenly crosses in front of you.
• The interval between your vehicle and the vehicle or pedestrian 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 or pedestrian 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 detect a vehicle or a pedestrian in front of you.
• The speed difference between your vehicle an d a vehicle or pedestrian 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.
• 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.1ACC with LSF Conditions and Limitations
If the front of the vehicle is impacted in any of the
following situations, the ra dar sensor may not work
properly. Have your vehi cle checked by a dealer:
•The vehicle mounted onto a bump, curb, chock,
embankment, etc.
•You drive the vehicle where the water is deep.
•Your vehicle has a frontal collision.
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uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
Increase or decrease the vehicle speed using the RES/+/SET/– switch on the steering
wheel.
• Each time you press the switch up or do wn, the vehicle speed is increased or
decreased by about 1 mph or 1 km/h accordingly.
• If you keep the switch pressed up or down, the vehicle speed increases or
decreases by about 5 mph or 5 km/h accordingly.
■To Adjust the Vehicle Speed1To Adjust the Vehicle Speed
If a vehicle detected ahead is going at a speed slower
than your increased set speed, ACC with LSF may not
accelerate your vehicle. This is to maintain the set
following-interval betwee n your vehicle and the
vehicle ahead.
To increase speed
To decrease speed
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412
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
Press the (interval) button to change the
ACC with LSF following-interval.
Each time you press the button, the following-
interval (the interval behind a vehicle detected
ahead of you) setting cycles through short,
middle, long, and extra long following-
interval.
Determine the most appropriate following-
interval setting based on your specific driving
conditions. Be sure to adhere to any
following-interval requ irements set by local
regulation.
■To Set or Change Following-Interval
Interval Button
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413
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Continued
Driving
The higher your vehicle’s following-speed is, the longer the short, middle, long or
extra long following-interval becomes. See the following examples for your
reference.
When your vehicle stops automatically beca use a vehicle detected ahead of you has
stopped, the interval between the two vehicles will vary based on the ACC with LSF
interval setting.
Following-intervalWhen the Set Speed is:
50 mph (80 km/h)65 mph (104 km/h)
Short
84 feet
26 meters 1.1 sec102 feet
31 meters 1.1 sec
Middle
111 feet
34 meters
1.5 sec139 feet
43 meters
1.5 sec
Long
155 feet
48 meters 2.1 sec202 feet
62 meters 2.1 sec
Extra
Long204 feet
62 meters 2.8 sec265 feet
81 meters 2.8 sec
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uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
414
Driving
To cancel ACC with LSF, do any of the
following:
• Press the CANCEL button.
• Press the MAIN button.
u ACC with LSF indicator goes off.
• Depress the brake pedal.
u When the LSF function has stopped the
vehicle, you cannot cancel ACC with LSF
by depressing the brake pedal.
■To Cancel1 To Cancel
Resuming the prior set sp eed: After you have
canceled ACC with LSF, you can resume the prior set
speed while it is still displayed. Press the RES/+/SET/
– switch up.
The set speed cannot be set or resumed when ACC
with LSF has been turned off using the MAIN button.
Press the MAIN button to activate the system, then
set the desired speed.
CANCEL
Button
MAIN
Button
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uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
■Automatic ca ncellation
The beeper sounds and a message appears on the multi-information display when
ACC with LSF is automatically canceled. Any of these conditions may cause the ACC
with LSF to automatically cancel:
• Bad weather (rain, fog, snow, etc.)
• When the radar sensor in the front grille gets dirty.
• The vehicle ahead of yo u cannot be detected.
• An abnormal tire condition is de tected, or the tires are skidding.
• Driving on a mountainous road, or driving off road for extended periods.
• Abrupt steering wheel movement.
• When the ABS, VSA ® or CMBS
TM is activated.
• When the ABS or VSA ® system indicator comes on.
• When the vehicle is stopped on a very steep slope.
• When you manually apply the parking brake.
• When the detected vehicle within the AC C with LSF range is too close to your
vehicle.
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
The ACC with LSF automatic cancellation ca n 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 power system is turned off.
1Automatic cancellation
Even though ACC with LSF has been automatically
canceled, you can still resu me the prior set speed.
Wait until the condition that caused ACC with LSF to
cancel improves, then press the RES/+/SET/– switch
up.
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