Acura MDX 2014 Owner's Manual

uuWhen DrivinguAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
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340Driving
■There is no vehicle ahead
When driving at 22 mph (35 km/h) or above:
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 travelling at
the set speed, ACC with LSF accelerates your
vehicle to the set speed, and then maintains it.
When driving under 22 mph (35 km/h) and no
vehicle is detected ahead: ACC with LSF
automatically cancels. The beeper sounds once.
■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 LSF range.
ACC with LSF stays on unless you cancel it. Once you release the accelerator pedal,
the system resumes the set speed.■A vehicle ahead is within ACC range and stops
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 MID 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.A vehicle icon with dotted-line
contour appears on the MID
1When in Operation
Limitations
Use the brake pedal to maintain a safe distance with
other vehicles in the following cases. ACC with LSF
may not work properly when:•A vehicle ahead of you is parked when your vehicle
is moving.•Motorcycles or other small vehicles are ahead of
you.•A vehicle cuts in front of you at a short distance.
ACC with LSF may momentarily apply brakes or
sound a beep if there is a vehicle, or even a building,
next to you if:•You make a sudden turn or drive on a narrow road.•You abruptly move the steering wheel.•You are in an unusual position within your lane.
When your vehicle stops automatically because a
vehicle detected ahead of you has stopped, the
distance between the two vehicles will vary based on
the ACC with LSF distance setting, as follows:
Short: 11.5 ft (3.5 m)
Middle: 14.1 ft (4.3 m)
Long, Extra Long: 16.4 ft (5.0 m)
2To Set or Change Following Distance P. 342

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341
uuWhen DrivinguAdaptive 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 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
1To 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
distance between your vehicle and the vehicle ahead.
To increase speedTo decrease speed

342
uuWhen DrivinguAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
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Driving
Press the (distance) button to change the
ACC with LSF following distance.
Each time you press the button, the following
distance (the distance behind a vehicle
detected ahead of you) setting cycles through
short, middle, long, and extra long following
distances.
The higher your selected set speed is, the longer the short, middle, long or extra long
following distance becomes. See the following examples for your reference.
■To Set or Change Following Distance
Distance Button
Following Distance
When the Set Speed is:
50 mph (80 km/h)
65 mph (104 km/h)
Short
83 feet
25 meters
100 feet
31 meters
Middle
110 feet
33 meters
137 feet
42 meters
Long
154 feet
47 meters
200 feet
61 meters
Extra
Long
204 feet
62 meters
265 feet
81 meters

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uuWhen DrivinguAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
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Driving
To cancel ACC with LSF, do any of the
following:
•Press the CANCEL button.
•Press the MAIN button.
uACC with LSF indicator goes off.
•Depress the brake pedal.
uWhen the LSF function has stopped the
vehicle, you cannot cancel ACC with LSF
by depressing the brake pedal.
■To Cancel
1To Cancel
Resuming the prior set speed: 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 when driving at a speed of at least 25
mph (40 km/h) or more.
Even if your vehicle speed has gone down to less than
25 mph (40 km/h), you can still resume the prior set
speed when ACC with LSF detects a vehicle ahead of
you.
You cannot set or resume in the following situations:•When the vehicle speed is less than 25 mph
(40km/h) and there is no vehicle detected in front
of your vehicle•When the MAIN button is turned off
CANCEL
ButtonMAIN
Button

uuWhen DrivinguAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
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344Driving
■Automatic cancellation
The beeper sounds and a message appears on the MID when ACC with LSF is
automatically canceled. Any of these conditions may cause the ACC with LSF to
automatically cancel:
•Your vehicle speed slows to 22 mph (35 km/h) or below when a detected vehicle
goes out of the ACC with LSF range.
•Bad weather (rain, fog, snow, etc.)
•When the radar sensor in the front grille 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 VSA® 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 LSF range is too close to your
vehicle.
•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.
•When trailer stability assist is activated.
2Trailer Stability Assist
* P. 317
The ACC with LSF automatic cancellation can be also triggered by the following
causes.
1Automatic cancellation
Even though ACC with LSF has been automatically
canceled, you can still resume the prior set speed.
Wait until the condition that caused ACC with LSF to
cancel improves, then press the RES/+/SET/– switch
down.
* Not available on all models

345
uuWhen DrivinguAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
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Driving
Press and hold the (distance) button for one second.
Cruise Mode Selected appears on the MID for two seconds, and then the mode
switches to Cruise.
To switch back to ACC with LSF, press and hold the button again for one second.■To Switch ACC with LSF to Cruise Control
1To Switch ACC with LSF to Cruise Control
Always be aware which mode you are in. When you
are driving in Cruise mode, be more cautious about
keeping a safe distance from a vehicle ahead of you.
The current mode is displayed on the multi-
information display.
2Switching the Display P. 98
ACC with
LSF ONCruise
Control ON
Distance Button

346
uuWhen DrivinguForward Collision Warning (FCW)
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Driving
Forward Collision Warning (FCW)
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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.
2Customizable Features P. 107
The camera is shared with Lane Departure Warning
(LDW).
2LDW Camera P. 351
LONG
NORMAL
SHORT
Your Vehicle Vehicle Ahead You can set Long, Normal or Short for when warnings start:
* Not available on all models

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uuWhen DrivinguForward Collision Warning (FCW)
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Driving
1Forward Collision Warning (FCW)
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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 MID until a possible collision is
avoided.
* Not available on all models

uuWhen DrivinguForward Collision Warning (FCW)
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348Driving
■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.
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.
If you use a reflective sun shade, do not allow it to
cover the camera housing. Covering the camera can
concentrate heat on the camera.
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 FCW camera.

349
uuWhen DrivinguForward Collision Warning (FCW)
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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.●When your vehicle is towing a trailer.