How to adjust Collision Avoidance System alert distance on Honda Accord

The Collision Mitigation Braking System or CMBS is designed to alert drivers when it detects a potential frontal collision, and if one is imminent: to apply the brakes to mitigate the severity of a possible impact.

Honda Accord, tenth generation – (photo by Honda)

When a potential frontal collision is detected, the system is designed to issue a visual alert in the instrument panel as well as a beeping noise. CMBS uses a radar unit mounted at the front of the vehicle and a windshield mounted camera to gauge the distance of a detected vehicle ahead.


The radar unit is positioned directly below the front license plate position you can adjust the system to issue the alerts when the detected vehicle is either farther away or closer to your vehicle.

Adjusting CMBS Alert Distance

Multimedia systems with Clock Menu button

  1. With the ignition on and the transmission in Park, press the CLOCK MENU button on the infotainment system.
  2. Turn the selector knob to Settings and press to enter.
  3. Select Vehicle Settings and then Driver Assist System Setup.
  4. Select Forward Collision Warning Distance.
  5. Now if you want the alerts to occur when the detected vehicle is still farther away, select Long.
  6. If you want them to occur when you’re closer to the detected vehicle, choose Short.

Multimedia systems with Home button

  1. With the ignition and the transmission in Park, touch the HOME icon on the display audio and then select Settings
  2. Next choose Vehicle and Driver Assist System Setup.
  3. Touch Forward Collision Warning Distance.
  4. Now if you want the alerts to occur when the detected vehicle is still farther away, select Long
  5. If you want them to occur when you’re closer to the detected vehicle choose Short
  6. After making your choice scroll to the bottom and touch Save.

How to turn off CMBS

  1. To turn CMBS off push the safety support button to the left of the steering column.
  2. Roll the selector switch on the left side of the steering wheel until the CMBS icon is highlighted in instrument cluster screen and press the it in.
  3. CMBS will then remain off until the ignition is turned back on.

System limitations

  • CMBS may be able to slow the vehicle down but it may not always be enough to prevent a collision.
  • The system will not detect all possible obstacles.
  • CMBS might deliver a false warning. As always control of the vehicle remains with the driver.
  • Failure to take action could result in a collision
Contact the author: stevietobias@wheelsjoint.com


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