Warnings problems of the 2020 Honda Accord

On July 30, 2025, my Honda’s collision mitigation braking system (cmbs) randomly activated without any obstacles in front of the vehicle. Since then, this issue has happened numerous times while driving. When the incident occurs, the system flashes a “brake” warning and suddenly applies the brakes while I am driving. This creates a serious risk of a rear-end collision, loss of control, or bodily harm. I had the vehicle inspected by an authorized Honda dealership on August 1, 2025 for this issue. Despite the inspection, the malfunction continues to occur. Although I have not yet been involved in an accident, this defect poses an ongoing safety hazard for myself, passengers, and others on the road. I request that NHTSA investigate this matter.

Cmbs not working properly. The car automatically brakes without any collision risk even on a clear road with no traffic and clear weather. Have a huge risk of someone crashing the car from the rear due to immediate braking. This issue has appeared several times.

I was driving along the NJ turnpike at approximately 65 miles an hour when the brake warning light started flickering on and off and then the brakes engaged. It was quick, as if I had stepped hard on the pedal. No vehicle was in front of me, but I was driving through the express ez pass lane. Later that same day, it happened again, but this time it was only as if someone tapped on the brakes. The brake light flashed then too. To answer the above questions: what component or system failed or malfunctioned, and is it available for inspection upon request? the collision mitigation braking system, and yes it is how was your safety or the safety of others put at risk? someone could have rear-ended me has the problem been reproduced or confirmed by a dealer or independent service center? no has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? no were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? the brake light warning flickered on before each instance.

During a forward-side lane departure collision in my 2020 Honda Accord, the body control module (bcm), forward collision radar system, braking assist, and vehicle stability assist (vsi) all failed to activate. As a result, the vehicle did not brake, warn, or stabilize before impact. The airbags also failed to deploy during the crash. My safety and the safety of others were put at serious risk, as the vehicle did not respond as designed despite being equipped with these systems. The car is now undrivable but available for inspection. This issue has not yet been confirmed by a dealer due to the car's condition, but similar failures have been reported in other 2020 Honda Accords already under recall. The insurance company did not request vehicle data and did not inspect the systems. There were no warning lamps, alerts, or messages prior to the failure; the malfunction occurred without notice. I am requesting that this vehicle be added to the existing recall list related to bcm and safety system failures.

All of the lights on my dashboard come on every few hours and go off. Vehicle is losing power as I drive. Multiple people with this make and model have expressed their concerns of the same issue.

Check engine, right mirror, door, alignment. My safety is not good, the car jerks and merging into another lane. Yes it has been inspected by insurance representative. It appeared when I was hit on 02/13/2024.

Driving on the interstate going about 60mph with no one in front of me or behind me and the car brakes by itself. This is the fourth time this vehicle has randomly brake.

On 2 incidents, I've had the collision mitigation braking system (cmbs) issue driver warnings/alerts and automatically hit the brakes without warning when there are no obstacles in front of the vehicle and it has not deviated from its lane. Both incidents occurred during highway speeds. 1 incident was in a construction area where the car entered a steep decline and then rise as the construction was part of lane resurfacing. The 2nd incident was while driving over an overpass (not sure, but possibly a steep incline).

Today I was driving my Honda (accord 2020) about 30 to 40 miles an hour and suddenly the car decided to brake for I guess a fraction of a second. It is hard to describe but literally felt that someone slam on the brakes. I also got the brake alarm and the sign on the dashboard "brake" (orange sign). I was taken by surprise, even my wife asked me, what was I doing?. It was only a moment, but it was totally unexpected, lucky for me, there was no one in front or behind me. If you have questions please contact me at miguel_angelpucp@hotmail. Com or 757-500-3832.

The vehicle automatically turned on the forward collision mitigation system when there was nothing to avoid. Vehicle went from 55mph to 20mph in about 2 seconds. Fortunately there was no vehicle approaching from behind. I had no control over trying to override the braking system. Had vehicle checked at Honda dealership & was informed there was nothing they could do other than make a note of the issue.

With seemingly no impediments ahead of it our 2020 Honda Accord will suddenly brake forcefully when changing lanes or exiting the freeway. It is not constant, but it is scary since there is no reason to brake at this point. This could cause us to be rear-ended the thing this system is supposed to keep us from doing. The dealer says unless it occurs when they drive it, unless, unless. The 'advisor' said he had heard of a few examples. They are all over the internet. What is being done to address this issue? OH, and he mentioned that we could always turn it off. We bought this car because being in our sixties and reflexes not necessarily being what they once were we wanted to avoid hitting someone from behind. This has happened on dozens of occasions. The listed date was the last.