Automatic Emergency Braking problems of the 2025 Honda Civic

I am reporting a serious and recurring safety defect involving my 2025 Honda Civic sport touring hybrid. This is the second occurrence of a serious vehicle malfunction, and the vehicle has experienced numerous other significant problems during my ownership. During the most recent incident, I was traveling approximately 45 mph when the vehicle experienced a sudden loss of power. I was unable to accelerate, the vehicle shut off while I was in the middle of the roadway, and the vehicle subsequently went into limp mode. At the same time, the vehicle displayed multiple warning lights and safety-system warnings, which I documented in a video. The abs system is still not functioning, and the electronic parking brake is also not functioning. Other vehicle safety/driver-assistance features are also unavailable. Before and during this incident, the check-engine light was flashing. The vehicle was also shaking severely and making extremely abnormal engine noises. The check-engine light later became solid, but the vehicle continued to have serious problems. I had the vehicle scanned and received a diagnostic report showing confirmed and permanent diagnostic trouble codes p1659 and p2108. The diagnostic report recommends replacing power relay(s). P1659 concerns the electronic throttle control system (etcs) control relay, and p2108 concerns throttle actuator control module performance. I am extremely concerned because this is not simply a check-engine-light issue. The vehicle lost power and shut off while traveling approximately 45 mph, leaving me unable to accelerate while in traffic. The vehicle then entered limp mode, while critical safety systems, including abs and the electronic parking brake, remained unavailable. This is the second occurrence of a serious malfunction involving this vehicle. I have also experienced several other significant problems with this vehicle during my ownership, including a substantial water leak that allowed water to enter the vehicle and CA.

This vehicle suffers from phantom braking. With the adaptive cruise control set, at times, in the display of the instrument cluster, the display shows a semi, motorcycle or car that is not there in real life. When this happens the car applies the brakes and starts slowing down. Sometimes this is bad enough that the collision warning message comes on and the brake application is very aggressive. The type of weather or road surface does not seem to matter. It seems to be very random. This happens once a week. Not just on the date provided below.

While driving on rt. 119 through uniontown PA, I was going 60-65 mph on a four lane road passing a cat on the right. I was about 3/4 of the way passing the car when three emergency braking kicked in and applied full braking. The road was straight, there was no vehicle or other obstruction in the road. This happened at approximately 3:30 p. M on 11/14/2025 with overcast sky and dry conditions. This caused the full sized tractor trailer behind me to lock up his brakes to attempt to not hit me. The only thing I can think of that kept me from getting hit, was I was able to hit the gas pedal.

Driving about 40 mph on a rural road, coming up to a curve in the road (or already in the curve when suddenly the 2025 Honda Civic hybrid sedan sport touring beeped fast and then immediately braked hard. There was no car in front of me but there was a car coming towards me in the opposite direction. There was no fog or rain, it was daytime. Believe the cmbs caused this. If a car would have been close behind me, I may have been rear ended. Also, if this happened on snow or ice, would have lost control. Did not take it to the dealer as others have stated, they could not find the problem. I believe the dash showed “ brake” just as it happened but nothing before.

I was in a situation where I needed to accelerate rapidly to avoid a crash. However, the car refused to accelerate, and “low speed breaking control” flashed on the dashboard. Thankfully, whatever triggered that soon stopped, and I was able to continue forward just before a collision. I don’t know what caused “low speed breaking control” to stop the vehicle in the middle of a busy street. I have attempted to disable “low speed breaking control” on this vehicle, but the vehicle doesn't allow me to disable it. I expect that the vehicle will someday cause a collision because it will once again decide that it needs to apply “low speed, breaking control“ when that would put me in danger.

Unusual behavior with the "driver assistance system", specifically cmbs (collision mitigation braking system) and rdms (road departure mitigation system) warning messages appear too frequently. The first time this error appeared was when driving home from the lot after purchasing the vehicle (bought at 56 miles). After the first appearance I've seen this error appear ~60% of the time when driving or idle (these errors stay on then disappear within ~3 seconds of it appearing). My vehicle was inspected by the purchase dealer's service personnel, but they claim that there is no error logs recorded on the car's s and they could not replicate the error. At their direction I have since brought back the vehicle to monitor for the errors again so I can bring it back to the dealer for them to try to replicate this error again. . . I am aware of the cmbs issue with Honda vehicles up to 2022. I am very sad and surprised that the 2025 vehicles also have this issue. I have not yet randomly braked on the freeway (thank god) but I am fearful that my vehicle is next because Honda says they cannot find an issue currently. After noticing the frequent appearance of the warnings, I began documenting the warnings to the best of my ability with photos. To be safe I am unable to document the photo while driving so I am only able to take the pictures on the occasion when I am in the passenger seat when my wife is driving. I have attached two instances of when these errors pop up, one instance at 192 miles parked, and one instance later driving at 35 mph at 196 miles. Unfortunately, due to my misplaced faith in Honda, I was unable to document the previous warnings, but I will try my best to safely document all future ones. Please NHTSA, investigate further into this and pressure Honda to fix these vehicles. There will be more accidents and deaths if they are not held accountable. I am stuck with the vehicle, unable to purchase another one. I hope we Honda owners will be safe.