Acura TLX (2021 year). Manual in english — page 27
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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
■
How to activate the system
1
Adaptive Cruise Control (ACC) with Low Speed Follow
For directions on the proper handling of the radar
sensor, refer to the following page.
2
You can read about handling information for the
camera equipped with this system.
2
P. 480
The radar sensor for ACC with Low Speed Follow is
shared with the Collision Mitigation Braking System
TM
(CMBS
TM
).
2
Collision Mitigation Braking System
P. 417
ACC with Low Speed Follow may not work properly
under certain conditions.
2
ACC with Low Speed Follow Conditions
and Limitations
P. 436
When not using ACC with Low Speed Follow: Turn
off adaptive cruise by pressing the
button.
■
Press the
button on the
steering wheel.
(white) is on in the
instrument panel.
ACC with Low Speed
Follow is ready to use.
How to use
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Adaptive Cruise Control (ACC) with Low Speed Follow
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Driving
1
Adaptive Cruise Control (ACC) with Low Speed Follow
Do not use ACC with Low Speed Follow under the
following conditions:
•
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 Low Speed Follow 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 facilities with drive through access.
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Adaptive Cruise Control (ACC) with Low Speed Follow
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 Low Speed
Follow 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 the 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.
■
To Set the Vehicle Speed
1
You can switch the displayed set speed
measurements on the multi-information display or
audio/information screen between mph and km/h.
2
2
P. 300
The vehicle stability assist
TM
(VSA
®
) system, vehicle
stability assist
TM
(VSA
®
) OFF, adaptive cruise control
(ACC) with low speed follow, and safety support
indicators may come on in amber along with a
message in the multi-information display when you
set the power mode to ON after reconnecting a
battery.
Drive a short distance at more than 12 mph (20
km/h).
Each indicator should go off. If any do not, have your
vehicle checked by a dealer.
On when ACC with Low
Speed Follow begins
Press down and release
RES/+
/
SET/−
Switch
(green) is on.
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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
When ACC with Low Speed Follow starts
operating, the vehicle icon, interval bars and
set speed appear on the multi-information
display.
When you use ACC with Low Speed Follow,
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.
Set Vehicle Speed
Set Vehicle Interval
(green)
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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
■
There is a vehicle ahead
ACC with Low Speed Follow monitors if a vehicle ahead of you enters the ACC with
Low Speed Follow range. If a vehicle is detected doing so, the ACC with Low Speed
Follow 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. 440
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 Operation
1
If the vehicle detected ahead of you slows down
abruptly, or if another vehicle is detected cutting in
front of you, a beeper sounds and a message appears
on the multi-information display, and the head-up
warning lights
*
come on.
Depress the brake pedal, and keep an appropriate
interval from the vehicle ahead.
Beep
Head-up
Warning
Lights
*
ACC with Low Speed Follow Range: 394 ft. (120 m)
A vehicle icon appears on the
multi-information display
* Not available on all models
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Adaptive Cruise Control (ACC) with Low Speed Follow
434
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 Low Speed Follow
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 vehicle is in the ACC with Low Speed Follow range.
ACC with Low Speed Follow stays on unless you cancel it. Once you release the
accelerator pedal, the system resumes the set speed.
There are times when the vehicle speed will decrease when the accelerator pedal is
lightly applied.
A vehicle icon with dotted-line
contour appears on the multi-
information display
1
Even if the interval between your vehicle and the
vehicle detected ahead is short, ACC with Low Speed
Follow 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, gradually 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
Low Speed Follow detecting range. Change the
ACC
Forward Vehicle Detect Beep
setting.
2
P. 300
Limitations
You may need to use the brake to maintain a safe
interval when using ACC with Low Speed Follow.
Additionally, ACC with Low Speed Follow may not
work properly under certain conditions.
2
ACC with Low Speed Follow Conditions
and Limitations
P. 436
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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
■
A vehicle detected ahead is within ACC with Low Speed Follow range and
slows to a stop
Your vehicle also stops, 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 Low Speed Follow operates
again within the prior set speed.
If no vehicle is ahead of you before you
resume driving, depressing the accelerator
pedal will resume operation of ACC with Low
Speed Follow within the prior set speed.
1
A vehicle detected ahead is within ACC with Low Speed Follow
range and slows to a stop
3
WARNING
Exiting a vehicle that has been stopped
while the ACC with Low Speed Follow
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 Low Speed Follow.
(green)
(green)
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Adaptive Cruise Control (ACC) with Low Speed Follow
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Driving
The system may automatically shut off and the
indicator will come on under
certain conditions. Some examples of these conditions are listed below. Other
conditions may reduce some of the ACC functions.
2
P. 480
2
P. 482
■
Environmental conditions
Driving in bad weather (rain, fog, snow, etc.).
■
Roadway conditions
Driving on a snowy or wet roadway (obscured 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 (Wrong sized, varied size or construction,
improperly inflated, compact spare tire
*
, etc.).
•
The camera temperature gets too high.
•
The parking brake is applied.
•
The front grille is dirty.
•
The vehicle is tilted due to a heavy load or suspension modifications.
•
Tire chains are installed.
■
ACC with Low Speed Follow Conditions and Limitations
1
ACC with Low Speed Follow Conditions and Limitations
If you need the radar sensor to be repaired, or
removed, or the radar sensor cover is strongly
impacted, turn off the system by pressing the
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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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
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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.
•
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.
•
There are animals in front of your vehicle.
•
You drive on a curved or winding or undulating road that makes it difficult for the
sensor to properly detect a vehicle in front of you.
•
The speed difference between your vehicle 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.
1
ACC with Low Speed Follow Conditions and Limitations
If the front of the vehicle is impacted in any of the
following situations, the radar sensor may not work
properly. Have your vehicle 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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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
•
Driving through a metal bridge.
•
The vehicle ahead of you brakes suddenly.
•
The vehicle ahead of you has a unique shape.
•
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.
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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
Increase or decrease the vehicle speed using the
RES/+
/
SET/–
switch on the steering
wheel.
•
Each time you press the switch up or down, 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 Speed
1
If a vehicle detected ahead is going at a speed slower
than your increased set speed, ACC with Low Speed
Follow may not accelerate your vehicle. This is to
maintain the set interval between your vehicle and
the vehicle ahead.
You can switch the displayed set speed
measurements on the audio/information screen or
multi-information display between mph and km/h.
2
2
P. 300
When you depress the accelerator pedal and then
push and release the
SET/–
switch, the current speed
of the vehicle is set.
To increase speed
To decrease speed
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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
Press the interval button to change the ACC
with Low Speed Follow 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-
intervals.
Determine the most appropriate following-
interval setting based on your specific driving
conditions. Be sure to adhere to any
following-interval requirements set by local
regulation.
■
To Set or Change Following-interval
Interval Button
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Adaptive Cruise Control (ACC) with Low Speed Follow
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 because a vehicle detected ahead of you has
stopped, the interval between the two vehicles will vary based on the ACC with Low
Speed Follow interval setting.
Following-interval
When the Set Speed is:
50 mph (80 km/h)
65 mph (104 km/h)
Short
83 feet
25 meters
1.1 sec
100 feet
31 meters
1.1 sec
Middle
110 feet
33 meters
1.5 sec
137 feet
42 meters
1.5 sec
Long
154 feet
47 meters
2.1 sec
200 feet
61 meters
2.1 sec
Extra
Long
204 feet
62 meters
2.8 sec
265 feet
81 meters
2.8 sec
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Adaptive Cruise Control (ACC) with Low Speed Follow
442
Driving
To cancel ACC with Low Speed Follow, do any
of the following:
•
Press the
CANCEL
button.
u
The
indicator (green) on the multi-
information display changes to the
indicator (white).
•
Press the
button.
u
indicator (green) goes off.
•
Depress the brake pedal while the vehicle is
moving forward.
u
The
indicator (green) on the multi-
information display changes to the
indicator (white).
■
To Cancel
1
Resuming the prior set speed: After you have
canceled ACC with Low Speed Follow, you can
activate the ACC with Low Speed Follow with the
prior set speed displayed on the multi-information
display (in gray) by pressing the
RES/+
/
SET/–
switch
up even if the vehicle is stopped.
When you turn the ACC with Low Speed Follow off
by pressing the
CANCEL
button or depressing the
brake pedal, the prior set speed is displayed on the
multi-information display in gray.
When pressing the
RES/+
/
SET/–
switch, the ACC
with Low Speed Follow is activated with displayed
speed.
Then, when the
indicator (white) is displayed and
you press the
RES/+
/
SET/–
switch during the prior
set speed (in gray) is not displayed, the current vehicle
speed is set as same as the condition of operating the
RES/+
/
SET/–
switch.
CANCEL
Button
Button
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Adaptive Cruise Control (ACC) with Low Speed Follow
Driving
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Automatic cancellation
The beeper sounds and a message appears on the multi-information display when
ACC with Low Speed Follow is automatically canceled. Any of these conditions may
cause the ACC with Low Speed Follow to automatically cancel:
•
Bad weather (rain, fog, snow, etc.)
•
When the radar sensor behind the emblem gets dirty.
•
The vehicle ahead of you cannot be detected.
•
An abnormal tire condition is detected, 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 ACC with Low Speed Follow range is too
close to your vehicle.
•
The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
•
When the Maximum Load Limit is exceeded.
•
The vehicle has repeatedly applied the brakes to maintain the set speed (for
example, you are descending a long slope).
The ACC with Low Speed Follow 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.
1
The set speed cannot be set or resumed when ACC
with Low Speed Follow has been turned off using the
button. Press the
button to activate the
system, then set the desired speed.
Adaptive Cruise Control (ACC)
with Low Speed Follow Indicator
(White)
Prior Set Speed (Gray)
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Adaptive Cruise Control (ACC) with Low Speed Follow
444
Driving
Press and hold the interval button for one
second.
Cruise Mode Selected
appears on
the multi-information display for two seconds,
and then the mode switches to Cruise.
The
comes on.
•
Green: The system is on.
•
White: The system is standby.
To switch back to ACC with Low Speed
Follow, press and hold the interval button
again for one second.
■
When to use
Desired speed in a range above roughly 25 mph (40 km/h) ~.
Take your foot off the pedal and press the
RES/+
/
SET/–
switch down when you
reach the desired speed.
The moment you release the
RES/+
/
SET/–
switch, the set speed is fixed, and cruise
control begins. The indicator
(green) comes on.
When you use cruise control, 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 Switch ACC with Low Speed Follow to Cruise Control
1
To Switch ACC with Low Speed Follow to Cruise Control
Always be aware which mode you are in. When you
are driving in Cruise mode, the system will not assist
you to maintain a following-interval from a vehicle
ahead of you.
You can switch the displayed set speed
measurements on the audio/information screen or
multi-information display between mph and km/h.
2
P. 103
2
P. 300
ACC with
Low Speed
Follow ON
Cruise
Control ON
Press and hold the
interval button
(white)
(white)
Interval Button
■
To Set the Vehicle Speed
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