Collision Mitigation System Problem: Troubleshooting Tips

The Honda Collision Mitigation System Problem supposedly helps prevent collisions by warning drivers of obstacles and triggering the brakes. However, there have been reports of the system causing vehicles to slam on the brakes even when there is no obstacle present.

If you want to turn off the system, you can press and hold the CMBS button until you hear a beep and a confirmation message displays in the vehicle’s Driver Information Interface.

Common Issues And Solutions

The Honda Collision Mitigation System Problem is a common issue reported by consumers where the system causes the vehicle to slam on the brakes even with no obstacles present. To turn off the system, press and hold the CMBS OFF button with a beep sound and a message appearing in the Driver Information Interface.

Activation Cancellation Problems:

Activation cancellation problems with collision mitigation systems can occur when the system fails to cancel its alerts appropriately. These problems can arise in various situations, such as when the vehicle comes to a complete stop or when the system determines that there is no longer a potential for a collision.

Here are some common issues and their solutions:

Issue: CMBS alerts continue even when the vehicle is stationary or the potential collision is no longer present.

  • Solution: Check if there are any obstacles or objects that may be triggering the system. If not, try resetting the system by turning off the vehicle and turning it back on after a few minutes. If the problem persists, consult your vehicle’s user manual for specific instructions.

Issue: CMBS alerts fail to deactivate after successfully avoiding a collision.

  • Solution: This issue may occur due to a malfunction in the sensor or detection system. Check if the system needs calibration or if there are any obstructions blocking the sensors. If the problem persists, it is advisable to take your vehicle to an authorized service center for a thorough inspection.

Issue: CMBS alerts remain active even though there is no immediate danger of a collision.

  • Solution: In such cases, it is possible that the system’s alert sensitivity settings need adjustment. Refer to your vehicle’s user manual for instructions on how to modify the alert sensitivity. It is important to find the right balance so that the system provides timely and accurate alerts without unnecessary distractions.

Collision Alert Malfunction:

Collision alert malfunctions can be frustrating and potentially hazardous if they fail to provide accurate warnings. Here are a few common issues and their solutions related to collision alerts:

Issue: CMBS alerts are not triggered even when there is an imminent collision.

  • Solution: Check if the sensors or cameras responsible for detecting potential collisions are blocked or dirty. Clean them thoroughly if necessary and see if the problem persists. If it does, consult a professional for further investigation.

Issue: CMBS alerts are overly sensitive and frequently triggered by non-threatening situations.

  • Solution: Adjusting the alert sensitivity can help resolve this issue. Consult your vehicle’s user manual to locate the settings for adjusting the alert sensitivity. Making slight adjustments to find the optimal setting can ensure that the system provides accurate warnings without unnecessary distractions.
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Issue: CMBS alerts fail to provide timely warnings, resulting in delayed reactions.

  • Solution: This issue may occur if the system is not properly calibrated or if there are obstructions affecting the detection capabilities. Have the system calibrated by a qualified technician or take your vehicle to an authorized service center for a thorough inspection.

Remember, if you encounter any persistent problems with your collision mitigation system, it is always recommended to consult a professional or contact the manufacturer for further assistance.

Collision Mitigation System Problem

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Activation Cancellation Problems

Facing Activation Cancellation Problems with your Collision Mitigation System? Learn how to adjust the alerts, turn the system on or off, and reset it in a few simple steps. Avoid collisions and reduce their severity with the help of this informative guide.

Reasons For Activation Cancellation:

  • Your vehicle comes to a complete stop: The collision mitigation system will automatically cancel the activation when it detects that your vehicle has stopped, as there is no longer a potential for a collision.
  • No longer detecting a collision potential: The system may cancel activation if it determines that there is no longer a potential for a collision based on changes in the vehicle’s speed, distance from other objects, or other factors.

Troubleshooting Steps:

  • Checking vehicle stoppage: If your collision mitigation system keeps canceling its activation, make sure that your vehicle is coming to a complete stop. Ensure that there are no issues with the brakes or any other mechanical problems that might prevent the system from detecting the stoppage accurately.
  • Verifying collision potential: If the system keeps canceling its activation even when you think there is still a collision potential, it is important to check if there are any obstacles or other vehicles that the system might not be detecting. Make sure that the sensors are clean and free from any obstructions.

Adjusting Alert Settings:

  • Start by parking the vehicle with the power ON.
  • Press the home button on the steering wheel.
  • Choose between Long, Normal, and Short alert settings based on your preference.

Turning Off Cmbs:

  • Press the Safety Support Switch to turn off the collision mitigation system.
  • Rotate the selector wheel to highlight the CMBS symbol.
  • Press in the selector wheel to turn off CMBS.
  • The system will remain off until you manually turn it back on using the same procedure or until the engine is restarted.

Remember to consult your vehicle’s manual for detailed instructions tailored to your specific make and model.

Collision Alert Malfunction

The Collision Alert Malfunction is a problem with the Collision Mitigation System, which is designed to alert drivers of possible collisions and assist in reducing speed. However, this system may malfunction and cause the brakes to engage unexpectedly, even when there is no obstacle present.

Possible Causes Of Malfunction:

  • Sensor obstruction: In some cases, a malfunction in the collision alert system can be attributed to a blocked or obstructed sensor. This could be caused by dirt, debris, or ice accumulation on the sensor surface, preventing it from accurately detecting objects.
  • Sensor calibration: If the collision alert system is not properly calibrated, it may result in false alerts or failure to detect potential collisions. This could be due to a reset or update failure, causing the system to lose its calibration settings.
  • Electrical issues: Malfunctioning wires or connections can also lead to a collision alert malfunction. Loose or damaged wires can disrupt the flow of electrical signals, affecting the sensor’s ability to transmit and interpret data accurately.
  • Software glitches: Like any electronic system, the collision alert system can experience software glitches or bugs. These issues can result in false alerts, incorrect readings, or total failure of the system to function as intended.
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Troubleshooting Steps:

  • Clean the sensor: Start by visually inspecting the sensor for any visible obstructions such as dirt, debris, or ice. Gently clean the sensor using a soft cloth to remove any accumulated particles, making sure not to scratch or damage the sensor surface.
  • Check for software updates: Visit the manufacturer’s website or contact customer support to check if there are any available software updates for the collision alert system. Keeping the software up to date can resolve common glitches and improve the system’s performance.
  • Perform a system reset: In some cases, a simple reset can resolve a collision alert malfunction. Refer to the vehicle’s user manual or consult the manufacturer’s instructions to learn how to perform a system reset for the collision mitigation system.
  • Verify sensor functionality: If the sensor is clean and the system is up to date, but the collision alert still malfunctions, it may be necessary to verify the sensor’s functionality. This can be done through a diagnostic tool or by consulting a professional technician.
  • Check wiring connections: Inspect the wiring connections related to the collision alert system for any signs of damage or loose connections. Secure any loose connections and replace any damaged wires if necessary. It is recommended to seek assistance from a qualified technician for complex wiring issues.

Remember to always refer to the vehicle’s user manual for specific instructions and consult with a professional if needed.

Difficulty Adjusting Alert Sensitivity

If you’re experiencing a collision mitigation system problem, adjusting the alert sensitivity can help. Follow simple steps to customize when the alerts start and stop, ensuring accurate collision warnings.

Adjusting the alert sensitivity of your collision mitigation system is an important step in ensuring that the system functions optimally for your driving needs. However, it can sometimes be challenging to find the right level of sensitivity. In this section, we will discuss the importance of adjusting alert sensitivity, troubleshooting steps, accessing alert adjustment settings, choosing the appropriate sensitivity level, and testing the modified alert settings.

Importance Of Adjusting Alert Sensitivity:

  • Adjusting the alert sensitivity allows you to customize the system according to your driving style and preferences.
  • It helps in reducing false alerts and preventing unnecessary braking interventions.
  • By finding the right balance, you can ensure that the system detects potential collisions accurately without being overly sensitive to minor obstacles or oncoming traffic.

Troubleshooting Steps:

If you are having difficulty adjusting the alert sensitivity of your collision mitigation system, follow these troubleshooting steps:

  • Ensure that your vehicle is in PARK and the power is ON before attempting to adjust the alert settings.
  • Check the owner’s manual or contact your vehicle manufacturer for specific instructions on adjusting the alert sensitivity.
  • Make sure that the collision mitigation system is activated and working properly before adjusting the sensitivity level.
  • If you are still experiencing difficulties, consider contacting your vehicle dealer or manufacturer for further assistance.

Accessing Alert Adjustment Settings:

To adjust the alert sensitivity of your collision mitigation system, follow these steps:

  • Park your vehicle with the power ON.
  • Press the home button on the steering wheel to access the main menu.
  • Navigate to the collision mitigation system settings.
  • Look for the alert sensitivity option within the settings menu.
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Choosing Appropriate Sensitivity Level:

When adjusting the alert sensitivity, you will typically have the option to choose between different levels, such as Long, Normal, and Short. Consider the following factors when selecting the appropriate sensitivity level:

  • Driving conditions: If you frequently drive in heavy traffic or congested areas, a higher sensitivity level might be necessary.
  • Personal preference: Some drivers may prefer a more sensitive system to receive early alerts, while others may prefer a less sensitive system to avoid false alarms.
  • Experience with the system: If you are new to using a collision mitigation system, starting with a lower sensitivity level and gradually increasing it can help you get used to the alerts without being overwhelmed.

Testing The Modified Alert Settings:

After adjusting the alert sensitivity, it is crucial to test the modified settings to ensure they meet your requirements. Follow these steps to test the system:

  • Find a safe and open road to drive on.
  • Pay close attention to any alerts or warnings given by the system.
  • Observe if the alerts occur at the appropriate times, such as when a potential collision is imminent.
  • If you face any issues or inconsistencies with the alerts, consider readjusting the sensitivity level or seeking professional assistance.

By following the above steps, you can overcome any difficulties in adjusting the alert sensitivity of your collision mitigation system. Remember to regularly review and modify the settings as needed to optimize the system’s performance for your driving needs.

Frequently Asked Questions Of Collision Mitigation System Problem

How Do I Reset My Honda Collision Mitigation System?

To reset your Honda collision mitigation system, press the CMBS off switch for about one second. You will hear a beeping sound and a message indicating that CMBS is off. Press the switch for one second to turn the system back on, and the CMBS light will illuminate.

What Is The Honda Collision Mitigation Brake System Problem?

The Honda collision mitigation brake system problem is when the system unexpectedly activates and causes the vehicle to brake, even when there is no obstacle present.

How Do I Turn Off Collision Mitigation System Problem?

To turn off the collision mitigation system problem in your vehicle, follow these steps: 1. Press and hold the CMBS™ OFF button. 2. You will hear a beep and a message will appear in the Driver Information Interface. 3. The CMBS™ indicator will appear, indicating that the system is off.

4. The system will remain off until you turn it back on using the same procedure or until you restart the engine.

Can You Turn Off Honda Collision Mitigation Braking System?

Yes, you can turn off the Honda collision mitigation braking system by pressing and holding down the CMBS button until you hear a beep and see a confirmation message in the vehicle’s Driver Information Interface. The system will remain off until you turn off the ignition.


To conclude, the Honda Collision Mitigation System is designed to assist in reducing the severity of collisions by alerting drivers and automatically applying the brakes if necessary. However, some users have reported issues with the system, such as false alerts and unexpected braking.

If you encounter a problem with the system, you can try resetting it by pressing the CMBS off switch for one second and then turning it back on. It is also possible to temporarily turn off the system by pressing and holding the CMBS off button.

While the Honda Collision Mitigation System can be a useful safety feature, it is important to be aware of its limitations and to always remain vigilant while driving. If you experience any persistent issues with the system, it is recommended to contact your Honda dealership for further assistance.

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