Honda Accord: ACC (Adaptive Cruise Control)*
Maintains a constant vehicle speed and a safe distance between your vehicle and the vehicle ahead of you without having to keep your foot on the brake pedal or accelerator.
Improper use of ACC can lead to a crash.
Use ACC only when traveling on open highways in good weather.
Important Safety Reminder
As with any system, there are limits to ACC.
Inappropriate use of ACC can result in a serious accident. Use the brake pedal whenever necessary, and always keep a safe distance between your vehicle and other vehicles.
The radar sensor for ACC is shared with FCW (Forward Collision Warning).
Do not use ACC under these conditions:
• In poor visibility.
• In heavy traffic.
• When you must slow down and speed up repeatedly.
• On winding roads.
• When you enter a toll gate, interchange, service area, parking area, etc. In these areas, there is no vehicle ahead of you, but ACC would still try to accelerate to your set speed.
• In bad weather (rain, fog, snow, etc.).
• On a slippery road (for example a road covered with ice or snow).
• When a spare tire is installed.
• When going down a steep hill where the engine braking does not work sufficiently.
When not using adaptive cruise control: Turn off adaptive cruise by pressing the MAIN button.
• To Set the Vehicle Speed
Take your foot off the pedal and press the –/SET button when you reach the desired speed.
The moment you release the –/SET button,
the set speed is fixed, and adaptive cruise
- A vehicle icon and distance bars appear on the multi-information display.
You can switch the displayed set speed measurements on the multi-information display between mph and km/h.
• When in Operation
The radar sensor monitors the distance between your vehicle and a vehicle ahead of you. When the sensor detects a change in distance, the system compensates it by accelerating or braking your vehicle in order to maintain the cruising speed you previously set.
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 multiinformation display to alert you.
Depress the brake pedal, and keep an appropriate distance from the vehicle ahead.
Even if the distance between your vehicle and the vehicle ahead is short, FCW may not alert you or 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 cuts in front of you is going faster than your vehicle, gradually distancing.
If you do not want to hear a beep when the system detects a vehicle, or when the vehicle goes out of ACC range, you can change the pre-running detect car beep setting.
• There is no vehicle ahead
Your vehicle cruises at the set speed.
• A vehicle ahead is within ACC range and going slower than the set speed
Your vehicle slows down, and maintains the same speed as the speed of the vehicle ahead.
• A vehicle ahead is within ACC range and going at a steady speed
Your vehicle follows the vehicle ahead of it, keeping a constant distance, without going beyond the set speed.
• A vehicle ahead goes out of range
ACC 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 alerts even if a vehicle is in ACC range.
ACC stays on unless you cancel it. Once you release the accelerator pedal, the system resumes the set speed.
Use the brake pedal to maintain a safe distance with other vehicles in the following cases. ACC may not work properly when:
• Vehicles ahead of you are going slower than 13
mph (20 km/h) or vehicles are parked.
• Motorcycles or other small vehicles are ahead of you.
ACC may momentarily apply brakes or sound a beep against a vehicle beside you or even a building beside you if:
• You drive at a sudden curve or on a narrow road.
• You abruptly move the steering wheel.
• You are in an unusual position within your lane.
• To Adjust the Vehicle Speed
Increase or decrease the vehicle speed using the RES/+ or –/SET buttons on the steering wheel.
• Each time you press the button, the vehicle speed is increased or decreased
about 1 mph or 1 km/h accordingly.
• If you keep the button pressed, the vehicle speed increases or decreases by about 5 mph or 5 km/h accordingly.
If a vehicle ahead is going at a speed slower than your increased set speed, ACC may not accelerate your vehicle. This is to maintain the distance between your vehicle and the vehicle ahead.
You can set the vehicle speed using the –/SET button on the steering wheel when adjusting the speed with the accelerator and brake pedals.
• To Change Vehicle Distance
Press the (distance) button to change ACC range.
Each time you press the button, the ACC range for the distance between your vehicle and the vehicle ahead of you changes to short, middle, long and extra long.
The faster you select the set speed, the longer the short, middle, long or extra long distance becomes. See the following examples for your reference.
• To Cancel
To cancel adaptive cruise control, do any of the following:
• Press the CANCEL button.
• Press the MAIN button.
- ACC Off appears on the multiinformation display.
• Depress the brake pedal.
Resuming the prior set speed: After you have canceled adaptive cruise control, you can resume the prior set speed while it is still displayed. Press the RES/+ button when driving at a speed of at least 25 mph (40 km/h) or more.
You cannot set or resume in the following situations:
• When vehicle speed is less than 25 mph (40km/h).
• When the MAIN button is turned off.
• Automatic cancellation
The beeper sounds and a message appears on the multi-information display when ACC is automatically canceled. Any of these conditions may cause the ACC cancellation:
• The vehicle speed slows down to 22 mph (35 km/h) and below.
• Bad weather (rain, fog, snow, etc.).
• When the radar sensor inside 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 or VSA is activated.
• When the VSA indicator comes on.
Even though adaptive cruise control has been automatically canceled, you can still resume the prior set speed. Wait until the condition that caused ACC to cancel improves, then press the RES/+ button.
• To Switch ACC to Cruise Control
Press and hold the (distance) button for one second.
Cruise Mode Selected appears on the multi-information display for two seconds, and then the mode switches to Cruise.
To switch back to ACC, press and hold the button again for one second.
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.
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