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Table of Contents > Driving > Adaptive Cruise Control (ACC)*

2019 Honda CR-V Owner's Manual ➜ Adaptive Cruise Control (ACC)*

uuHonda SensinguAdaptive Cruise Control (ACC)  
1Adaptive Cruise Control (ACC)  
Manual transmission models  
Adaptive Cruise Control (ACC)  
Helps to maintain a constant vehicle speed and a set following-interval behind a  
vehicle detected ahead of yours, without you having to keep your foot on the brake  
or the accelerator.  
3WARNING  
Improper use of ACC can lead to a crash.  
When ACC slows your vehicle by applying the brakes, your vehicle’s brake lights will  
illuminate.  
Use ACC only when driving on motorways  
and in good weather conditions.  
When to use  
The camera is  
located behind  
the rearview  
mirror.  
3WARNING  
ACC has limited braking capability. When  
your vehicle speed drops below 25 km/h (15  
mph), ACC will automatically cancel and no  
longer will apply your vehicle’s brakes.  
Always be prepared to apply the brake  
pedal when conditions require.  
The radar sensor is  
inside the front grille.  
Important Reminder  
As with any system, there are limits to ACC. Use the  
brake pedal whenever necessary, and always keep a  
safe interval between your vehicle and other vehicles.  
Vehicle speed for adaptive cruise control: Desired speed in a range above roughly  
30 km/h (18 mph) ~  
When the engine speed slows down, try to  
downshift.  
Shift position for ACC: in (2 or higher position  
When the engine speed goes up, try to upshift.  
You can maintain the set speed if you change gear  
within five seconds.  
Continued  
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uuHonda SensinguAdaptive Cruise Control (ACC)  
How to activate the system  
1Adaptive Cruise Control (ACC)  
ACC may not work properly under certain conditions.  
How to use  
2 ACC Conditions and Limitations P. 594  
ACC (green) is on in  
the instrument panel.  
ACC is ready to use.  
When not using ACC: Turn off adaptive cruise by  
pressing the MAIN button. This also will turn off the  
Lane Keeping Assist System (LKAS).  
Press the MAIN button  
on the steering wheel.  
When the MAIN button is pressed, both ACC and  
the Lane Keeping Assist System (LKAS) are either  
turned on or off.  
LIM Button  
Do not use the ACC under the following conditions:  
On roads with heavy traffic or while driving in  
continuous stop and go traffic.  
MAIN  
Button  
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 will not apply the brakes to maintain  
the set speed.  
If a different instrument panel is displayed,  
press the LIM button to change it to ACC.  
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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uuHonda SensinguAdaptive Cruise Control (ACC)  
1Adaptive Cruise Control (ACC)  
To Set the Vehicle Speed  
It may take more time to accelerate in ECON mode.  
On when adaptive  
cruise control begins  
You cannot use the ACC and the adjustable speed  
limiter or intelligent speed limiter at the same time.  
The adaptive cruise control (ACC), road departure  
mitigation, vehicle stability assist (VSA) system,  
vehicle stability assist (VSA) OFF, low tyre pressure/  
deflation warning system, collision mitigation braking  
system (CMBS), and parking brake and brake system  
(amber) indicators may come on in amber along with  
a message in the driver information interface when  
you turn the ignition switch to ON (w*1 after  
more than 20 km/h (12 mph). Each indicator should  
go off. If any do not, have your vehicle checked by a  
dealer.  
−/SET Button  
Press and release  
Take your foot off the pedal and press the –/SET button when you reach the desired  
speed.  
The moment you release the –/SET button,  
Set Vehicle Interval  
1To Set the Vehicle Speed  
the set speed is fixed, and ACC begins.  
You can switch the displayed set speed  
measurements on the driver information interface or  
audio/information screen between km/h and mph.  
2 Speedometer P. 147  
When ACC starts operating, the vehicle icon,  
interval bars and set speed appear on the  
driver information interface.  
2 Customized Features P. 158, 413  
When you use ACC, Straight Driving Assist (a  
feature of the Electric Power Steering system)  
*1: Models with the keyless access system have an  
ENGINE START/STOP button instead of an ignition  
switch.  
is activated.  
Set Vehicle Speed  
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.  
Continued  
591  
 
uuHonda SensinguAdaptive Cruise Control (ACC)  
1When in Operation  
When in Operation  
If the vehicle ahead of you slows down abruptly, or if  
another vehicle cuts in front of you, the beeper  
sounds and a message appears on the driver  
information interface, and the head-up warning  
lights* flash.  
There is a vehicle ahead  
ACC monitors if a vehicle ahead of you enters the ACC range. If a vehicle is detected  
doing so, the ACC 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. 598  
ACC Range: 120 m (394 ft.)  
Depress the brake pedal, and keep an appropriate  
interval from the vehicle ahead.  
When a vehicle whose speed is slower than  
your set speed is detected in front of you, your  
vehicle starts to slow down.  
Head-up  
Warning  
Lights*  
Beep  
A vehicle icon appears on the  
driver information interface  
* Not available on all models  
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uuHonda SensinguAdaptive Cruise Control (ACC)  
There is no vehicle ahead  
1When in Operation  
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 accelerates your vehicle to  
the set speed, and then maintains it.  
Even if the interval between your vehicle and the  
vehicle detected ahead is short, ACC 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.  
A vehicle icon with dotted-line  
contour appears on the driver  
information interface  
You can also set the system to beep when a vehicle  
detected in front of you comes in and goes out of the  
ACC detecting range. Change the ACC Vehicle  
Ahead Detected Beep setting.  
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 range.  
ACC 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 range.  
2 Customized Features P. 158, 413  
Limitations  
You may need to use the brake to maintain a safe  
interval when using ACC. Additionally, ACC may not  
work properly under certain conditions.  
2 ACC Conditions and Limitations P. 594  
Continued  
593  
uuHonda SensinguAdaptive Cruise Control (ACC)  
1ACC Conditions and Limitations  
ACC Conditions and Limitations  
For directions on the proper handling of the radar  
sensor, refer to the following page.  
2 Radar Sensor P. 628  
The system may automatically shut off and the ACC indicator will come on under  
certain conditions. Some examples of these conditions are listed below. Other  
conditions may reduce some of the ACC functions.  
You can read about handling information for the  
camera equipped with this system.  
2 Front Sensor Camera P. 626  
2 Front Sensor Camera P. 626  
Environmental conditions  
Driving in bad weather (rain, fog, snow, etc.).  
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 MAIN  
button and take your vehicle to a dealer.  
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 windscreen is blocked by dirt, mud, leaves, wet snow, etc.  
An abnormal tyre or wheel condition (Wrong sized, varied size or construction,  
improperly inflated, compact spare tyre, 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 tyre chains are installed.  
594  
 
uuHonda SensinguAdaptive Cruise Control (ACC)  
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 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.  
Continued  
595  
uuHonda SensinguAdaptive Cruise Control (ACC)  
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.  
Panel lorry,  
tanker lorry,  
etc.  
Radar detects upper section of  
an empty carrier lorry.  
When your vehicle or the vehicle ahead of you is driving on one edge of the lane.  
596  
uuHonda SensinguAdaptive Cruise Control (ACC)  
1To Adjust the Vehicle Speed  
To Adjust the Vehicle Speed  
If a vehicle detected ahead is going at a speed slower  
than your increased set speed, ACC may not  
accelerate your vehicle. This is to maintain the set  
interval between your vehicle and the vehicle ahead.  
Increase or decrease the vehicle speed using the RES/+ or –/SET buttons on the  
steering wheel.  
To increase speed  
When you depress the accelerator pedal and then  
push and release the –/SET button, the current speed  
of the vehicle is set.  
To decrease speed  
Each time you press the RES/+ or –/SET button, the vehicle speed is increased or  
decreased by about 1 km/h or 1 mph accordingly.  
If you keep the RES/+ or –/SET button pressed, the vehicle speed increases or  
decreases by about 10 km/h or 10 mph accordingly.  
Continued  
597  
 
uuHonda SensinguAdaptive Cruise Control (ACC)  
To Set or Change Following-interval  
Press the (interval) button to change ACC  
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.  
Interval Button  
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.  
598  
uuHonda SensinguAdaptive Cruise Control (ACC)  
1To Set or Change Following-interval  
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.  
The driver must in all circumstances preserve a  
sufficient braking interval from the vehicle which  
precedes it and be aware that minimum intervals or  
times of spacing can be provided by the provisions of  
the Motorway Code locally applicable and that it is  
the driver’s responsibility to respect those laws.  
When the Set Speed is:  
Following-interval  
80 km/h (50 mph)  
104 km/h (65 mph)  
25.4 metres  
83.3 feet  
1.1 sec  
30.6 metres  
100.4 feet  
1.1 sec  
Short  
Middle  
Long  
33.4 metres  
109.6 feet  
1.5 sec  
41.9 metres  
137.4 feet  
1.5 sec  
46.9 metres  
153.8 feet  
2.1 sec  
60.9 metres  
199.8 feet  
2.1 sec  
65.1 metres  
213.5 feet  
2.9 sec  
86.2 metres  
282.7 feet  
2.9 sec  
Extra  
Long  
Continued  
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