2021 Honda Accord Collision Avoidance Problems

Your car's automatic braking system (accident mitigation braking) is activating unexpectedly when you drive under bridges in your town, causing sudden braking due to dark shadows on the road. This creates a safety hazard because other drivers around you may not have time to stop, and you nearly caused an accident when another vehicle almost hit you after your brakes engaged. The system is designed to prevent collisions with actual vehicles, but it's mistakenly reacting to shadows instead. Honda is requesting a diagnostic fee of several hundred dollars to investigate the issue.

My car slammed on its own brakes hard out of nowhere with nothing in its forward. The first time it happened was about 9 months ago while I was driving on the highway, it was a quick moment of breaking without any reason, but the car didn't stop. Today it happened again, the speed was about 30 m/h, the car slammed hard on the brakes to an almost complete stop. I was lucky, nobody was behind.

The contact owns a 2021 Honda Accord. The contact stated while driving at approximately 30 MPH, the vehicle independently slowed down as if the brake pedal was depressed. The contact stated that a warning for the brakes and the collision mitigation and check engine warning lights were illuminated. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the turbo charger needed to be replaced. The vehicle was repaired. The contact retrieved vehicle however, several warning lights were illuminated. The contact parked the vehicle and had not returned it to the dealer. The vehicle was not diagnosed and was not repaired. The manufacturer was informed of the failure. The contact researched online and related the failure to NHTSA Action Number: EA24002 (Forward Collision Avoidance). The failure mileage was approximately 98,000.

Automatic breaking engaged with foot already pressing down brake pedal as traffic ahead was slowing. The automatic braking was overkill that the traffic that was slowing down ahead of me was now pulling away.

My honda Accord’s automatic braking system suddenly engaged this morning for no reason. The driver of the car following me had to slam on his breaks to avoid rear-ending me. If the other driver had not stopped, we would both have been injured. Honda’s emergency braking system is dangerous. There should be a way to disable it permanently.

I was driving 35mph and there was nothing in front of me when my car stopped. It would not move forward or accelerate despite pushing on the gas pedal. There was no forward motion or propelled motion. It took several seconds for my car to go again. The car was towed and serviced at the dealership. They said the front sensors had misfired. If a car would have been behind me or if I had been on the highway, this would have been a serious accident. The engine light never came on. A series of 5 warning lights related to the assisted driving came on but went away.

I was driving down the highway at approximately 70 mph and a vehicle ahead, probably 8-10 car lengths lightly applied their brakes slowing down to my estimate of 60 mph. The forward collision activated and slammed my brakes causing a pickup behind me to slam on their brakes and swerve onto the shoulder to avoid a collision. This is not the first time this has happened, but the previous time the braking wasn't as severe.

I was driving 40 mph and slowed down gradually pressing my brake due to a car making a right turn. As I'm slowing down to probably 15mph, the brakes wording shows on the odometer display. i had plenty of room between the turning right car but suddenly the car automatically stops while I'm in the lane. I could of got hit if there was a car behind me. This is the 1st time it has happen. I've seen the brake wording show up a few times while driving but this is the 1st time the car stopped on it's own. Currently researching on how to turn off the brake assist for the car. (This is a safety issue for other Accord owners)(purchased car DEC 2023)

I was traveling on interstate 10 going around 50mph with a safe distance from the traffic in front of me. The car in front of me did break but then sped off immediately. My car's automatic emergency breaking system engaged very aggressively and unnecessarily (a front end impact was not imminent if my car had not braked). I tried to accelerate but I had no control over it. The sudden breaking caused my car to slow so rapidly that the freightliner behind me did not have time to react, causing him to rear end my car. The car was totaled as a result. I have front and rear dash camera footage showing all of this. ***I marked a document as the police report to proceed but I do not have a copy of the police report. This is not provided unless ordered***

While driving on an open road with no cars around, the emergency braking suddenly engaged causing the car to come to an almost complete stop by itself.

At speed limit cruising down I66. I was all alone. No birds in area at all. Open road. I was in middle lanes. Car attempted to come to a complete stop by itself. “Phantom Braking”? All my friends with Honda’s and Acura’s mentioned similar issues. If anyone was behind me, I could have caused a pile up or even worse. It’s happened a few times. Took to Capitol Heights Honda and Landmark Honda. They ran diagnostics. Explained to me there were no error codes. I explained to them, if system has a fault, it thinks it’s operating properly. So, no errors would appear! I have experience and education in computer programming (College), mechanical and electronic (US Army) and over 30 electromechanical troubleshooting, repair and maintenance and other IT experience. SME After they haven’t been able to do anything about it, I turn off all safely systems. I drive a lot. So, I’m also a very good driver. Have almost 65k miles on my vehicle. Date of incident below was when I forgot to turn off sensor. But it happened a few times before and I brought to Honda after first two times. I even had to rent a car at my expense.

My family and I were driving home to LA from NM. I had been using the cruise and steer assist earlier in the drive but had it off after going through a metro area interstate. There was no vehicles within the cars front camera system when while driving 75 mph( that was the sped limit in TX), the cars braking system engaged with a hard break, no “brake” light flash of rapid break pumps as it would do if something was within the camera range. I was able to get in slow lane and within 30 secs it did it again. I was able to drive another hour with no issue but stayed under 65mph. We are 7 hours away from home and will be getting it to the dealership. This could have caused a major wreck.

A vehicle in front of me made a quick slow down. The automatic braking engaged, the driver behind me did not react in time and struck the back of my car. Resulting in totaling of the vehicle. The automatic braking would not stop engaging, if it would have dis-engaged I could of pulled forward a few feet and the driver behind me would of missed me.

Honda accord breaks unexpectedly for no reason. It’s an automatic break or slow down without us pressing the break. The car has an automatic emergency break system and it seems to break when nothing is I front of us. Happens many times and dealer can’t figure out what is wrong. They tell us car is running well.

I was driving on the freeway going 65mph when the automatic safety brake system slowed my car down abruptly for no reason at all. Luckily there wasn’t any other vehicles anywhere near me or it would have caused an accident. This wasn’t the only time the safety system activated without reason either. It also happened two other times in similar situations.

The collision mitigation brake system continues to come off, and today it made my car spin, and I almost crash into the media.

1.Driving on a straight road at about 45-50 MPH sudden abrupt braking for no reason . 2. Good thing I was wearing a seat belt , it was a very forceful brake action that pushed me forcefully forward, I was struck from behind by another vehicle. Visial minor damage to the rear bumper cover. 3. No it happened today 4-5-23 I plan on calling the dealer tomorrow. 4. The BRAKE message appeared at the exact time of the incident.

Automatic emergency breaking system has benn activated in about 6 different ocassions while driving in the highway for no reason. No vehicles or obstacles in front of the car but car suddenly applied brakes stopping the car very suddenly while driving 70-75 miles per hour.

in the last 10 days, we there's been 4 incidents where the vehicle suddenly brakes when travelling on high speeds on the freeway out of nowhere. We were almost involved in a serious car accident yesterday where a vehicle behind us narrowly got out of the way. Took vehicle to honda dealership service and they claim they cant find any issues with braking system or sensors and they are not aware of any braking issues with this model. When i told them that i found online that theres an investigation opened last year about this issue in other accords, they had no idea what i was talking about and asked them to google it and they refuse. They refuse to fix the issue and suggest to just keep driving the vehicle since theres nothing for them to fix.

This car has randomly slammed on the breaks too many times to count and has been reported far too many times. Today while in the left lane on 95 southbound this car randomly slammed on the breaks so violently the speed was reduced 20 mph with seconds. This is incredibly dangerous, HOW LONG WILL YOU ALL THIS

Vehicle tends to turn on brake warning light when there is nothing in the way. Driving with no obstacle in the way and the brake warning sign will display on dashboard. I’ve driven it on the highway with no cars and it will signal me to brake for no reason. I’m afraid the brakes might apply which could cause a serious accident.

Vehicle flashed "brake" on the dashboard and automatically engaged brakes despite nothing being ahead in the road. This occurred on a clear, sunny day around late morning on the interstate. Similar issues have occurred previously where the car flashed the "brake" warning light despite nothing being immediately ahead in the road. With this other incident the brakes were not engaged. This time the brakes engaged, then released, and the car continued. Later on that same trip, the "brake" warning would again flash despite no objects being immediately ahead in the road. The vehicle arbitrarily braking without warning or reason is extremely dangerous as it may cause vehicles behind including much larger trucks to slam into the car. The Honda dealer and Honda customer service were both contacted when the car on a previous occasion flashed "brake" despite no obstructions but neither has returned my messages.

My automatic emergency breaking kicked in today when there were no cars in front of me. My car began beeping loudly and flashing the word “BRAKE” and the car abruptly stopped in the middle of a very busy road. My daughter and I could’ve been very hurt but were lucky there was enough room behind us that we didn’t get rear ended. Nobody has checked this out yet because it just happened, but I am willing and open to having it looked at. I had a brief warning while the car flashed “BRAKE” and beeped, but there were no cars in front of us, and nothing I could do to make the car not slam on the brakes by itself.

Honda Accord multi point serviced July 2nd at Hendricks Honda Easley SC. Immediately after I was driving on Haywood Rd. Greenville SC when my vehicle slammed on brakes for no reason. There was no car, animal, pedestrian or debris in road to cause to happen. As a result I experienced whip lash and was seen by a doctor and therapist July 5th. This has caused me to be afraid to drive my own car plus miss work plus enjoy my July 4th. I have reported this to Honda Motor Company and I also returned to Hendricks Honda to have a diagnostic test performed but all they did was put 20 miles on my vehicle and said I would have to bring it in and leave it for 3 - 4 hours. WHY? If you truly checked it out today I don't feel I need to return for them to just tell me anything. I really feel like they wasted time doing nothing today. There diagnostic was just driving my vehicle and adding unnecessary miles.

The forward collision will automatically brake with nothing visibly in front of it. I have drove down the highway going 60mph. No car, animal, person, tall grass, etc in front of me or crossing the road and my vehicle pops up brake, brake, brake, and my car slams on break. This will cause someone to rear end me which can lead to a serious injury or even dead. I have contacted Honda corporate who instructed me to contact Townsend Honda in Tuscaloosa, AL. I contacted Townsend Honda and they stated that it was nothing they could do about it and they have other complaining of the same issue.

The contact owns a 2021 Honda Accord. The contact stated while driving approximately 45-50 MPH and switching lanes, the collision mitigation braking system engaged inadvertently. The forward collision warning light illuminated. The contact depressed the accelerator pedal and was able to continue to drive. The contact stated that the failure reoccurred several times while driving. The vehicle was taken to the dealer to be test-driven however, the mechanic was unable to duplicate the failure. The dealer also informed the contact that the collision mitigation braking system was operating as designed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 1,200.

WHILE DRIVING ON A ROAD ,IT AUTOMATICALLY APPLIED THE BRAKES AS IF ANY VEHICLE IN FRONT OF ME OR ANY OBSTACLES CAME IN FRONT OF MY VEHICLE ,BUT IT WAS NOTHING I WAS VERY LUCKY THAT THERE WAS NO VEHICLE BEHIND ME OTHERWISE I WOULD HAVE INVOLVED IN AN ACCIDENT

The car slowed down and break in the middle of intersection no others cars or people in the way

The automatic breaking system has almost caused 2 accidents. As I am easing into a stop with a car in front of me, my car has applied the automatic breaking system while I am breaking. The car In front was a car length ahead of me, thus it should not have been activated because I was not in danger. This almost caused an accident because the person behind me was basically getting a break check from me. Although it is trying to prevent an accident from happening it is actually causing one. A similar incident happened when a car was turning into a side street. I was slowing down and easing into my breaks when suddenly the automatic break system was applied. Again I had a safe distance between me and the car that was turning and it made be break really hard. The car behind me had to swerve out of the way in order to avoid a crash. The automatic breaking system is ruining my break pads. I am barely at 7000 miles and my accord is starting to make noise when I apply pressure to my breaks when I am backing up.

Not sure exactly the date but it was around 2-15-22 when the incidences happened several times last month while driving eastbound on the I-10. All of a sudden my vehicle was coming to a complete stop but I didn’t allow it to so I pressed the accelerator pedal to keep moving forward. One of the first times it happened there was a vehicle behind me but not close enough to have caused an disruptions in both vehicles. The second incident occurred but with no vehicles behind on the highway. The only warning indicator popped up on my dash was a flashing “Brake” indicator with an audio chime.

The contact owns a 2021 Honda Acord. The contact stated that while driving, the brakes engaged inadvertently without warning. Additionally, the vehicle slowed down while approaching the pedestrian crossing. The local dealer was called, and an appointment was scheduled however, the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 9,300. The VIN was not available.