2019 Honda Accord Driver Assist & ADAS Problems

The vehicle suddenly braked on its own without any obstruction, causing a violent stop and injury. I took it to the nearest dealership to check for a recall. They said there wasn't a recall for this VIN, although online searches show this as a known defect for 2018-2020 Honda Accord Collision Mitigation System.

The contact owns a 2019 Honda Accord. The contact stated that while driving at various speeds, the vehicle independently decelerated, and the brakes independently activated while the accelerator pedal was depressed. The BRAKE warning light was illuminated. The local dealer was contacted. The vehicle was not diagnosed or repaired due to the costs. Upon further investigation, the contact related the failure to NHTSA Action Number: EA24002 (Forward Collision Avoidance). The manufacturer was not made aware of the failure. The failure mileage was approximately 127,000.

Hello- I am writing in regards to my 2019 Honda Accord Sport. All the lights on the dashboard randomly comes on . I’ve had the car checked out at the dealership and they don’t seem to know why the light is on besides maybe the computer needs to be reset . There are hundreds of other Honda owners with the same issue. I would like to know what is Honda’s resolution to this issue that’s lot of customers are having . Thank you

I was traveling on a two lane road at approximately 40 mph when the automatic braking engaged for no reason, bringing the car to almost a complete stop. There were no other cars from either direction.

In 2 instances the car put on brakes for no reason. Nothing was in front of car. I was traveling roughly 70 mph and car slowed down and brake indicator came on, also going 75 with cruise control on and the system that brakes the car slowed the car down and then just quit working. Warning lights came on saying system failure but after car was turned off then turned back on there were no warnings.

Wednesday 10/01/25 I was driving to work on the highway with cruise control on, it was a empty road with nothing in front or behind me, my steering wheel got yanked out of my hands and turned all the way to the right towards the guard rail, then the steering wheel got yanked all the way to the left automatically, I did a 180 degree spin and crash my 2019 Honda Accord Touring 2.0L. I believe the Lane Keeping Assist System (LKAS) was at fault as well as the Collision Mitigation Braking System (CMBS). The vehicle got towed off the highway directly to a local body shop. The vehicle is available for inspection upon request. Mine and others safety was put at risk because the vehicle decided to crash itself potentially killing me or other people. The vehicle just arrived at the body shop and no diagnosis has been done yet. The vehicle is not drivable so the problem has not been reproduced. Vehicle has not been inspected and looked into yet, I am waiting for the body man to do a deep dive into it or I am planning on bringing it back to the dealership. There was no warning lamps present.

During highway driving the collision system starts to brake without any risk or objects in view. Happen twice within 10 minutes

Driving along at approximately 41 mph, CMBS unexpectedly activated for no apparent reason. There was no object in road to potentially collide with. Warning system barely activated before CMBS engaged braking very hard. Vehicle went from 41 mph to 31 mph in 2 seconds as recorded on dash cam. This is the 2nd occurrence in the same approximate location, both for no apparent reason & with no object in road ahead. Had an another car been following closely, this would have caused injury.

I bought this 2019 Honda Accord on June 30th from a company called Greenville Motor Company. July 1st, I took the car to the Honda dealership to get a diagnostic to make sure everything was in good shape. The technician I spoke with did notice the car & stated that it had a problem with the previous owner which was the Injectors. She told me that the light may not come on now but it may come on in the future. After I left the Honda dealership, I went to Greenville Motor Company & showed them the diagnosis I had done at Honda. He said he didn't see anything wrong. On July 2nd, all of my dashboard lights came on. Took it back to Greenville Motor Company, the tech there said I could pick it up July 3rd & drive it over the weekend. (basically he reset the lights so they wouldn't come on for a certain period of time).Within this time period I took it back to the Honda dealer & they told me that I also needed a turbo, they gave me the printout for that as well. Took it to Greenville Motor Company, they agreed that I did. need a turbo. Manager says he ordered turbo. I I don't remember the date I took it back but on July 12th, my dash lights came on again. I took it back to Greenville Motor Company July 14th, July 18th Greenville Motor Company called & said something on top of the turbo wasn't screwed on thats what was triggering the turbo code to show, so he never put on the turbo that he ordered I had it 2 hours & my dash lights came on again.

The contact owns a 2019 Honda Accord. The contact stated that upon starting the vehicle, the Collision Mitigation Braking system warning light illuminated, and the vehicle was unable to move. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Action Number: EA24002 (Forward Collision Avoidance). The manufacturer was not notified of the failure. The failure mileage was 19,000.

Every light on my dashboard came on at once. I took it to a Honda dealership for a diagnostic check and they said it was my turbo but every light is still on.

Hi. All the warning lights came on one morning. Looking online many people are have the same issue.

The contact owns a 2019 Honda Accord. The contact stated that while driving at an undisclosed speed, the Collision Mitigation System suddenly activated and applied the Forward Collision Avoidance Automatic Emergency Braking feature. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate e the failure. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 25,000.

Car did not slow down adaptively. Tried to hit the brakes hard and ended up needing to use the emergency brakes.

While driving my Honda Accord on US Highway 1, six warning signs lit up in the dash. The lights are Brake System Electric Parking Brake, Brake System Performance, Brake System Hold, ACC, Collision Mitigation System, and Road Departure System. The car began to brake and accelerate on its own. I pulled over for 10 minutes with the car in park. After waiting I proceeded to return driving unsafely with the warning lights on and car spontaneously braking and accelerating on its own.

The Automatic Braking System (ABS) engaged suddenly and without cause to engage. The vehicle is available for inspection. The sudden stop while traveling at approximately 40 mph startled me (driver) and could have caused a rear end collision. The vehicle was taken to the local Honda dealer. They indicated I should disable the ABS when using the vehicle. The actual ABS system was not inspected by the dealership or any other individual. There were no warnings prior to the occurrence although the dashboard displayed the standard BRAKING warning when the ABS engages. This occurred just once at which point I have subsequently disabled the ABS whenever driving.

I was driving about 45 mph about 10:45 AM. Suddenly, my car braked on its own. The message, "emergency brake", flashed on the screen. This same problem happened on August 2, 2024. There was no vehicle in front of or behind me. Neither was there any vehicle beside me. I am very concerned about my safety in driving this car. I have reported this problem before. On August 5, Honda dealership did a component diagnostic check. They said they found nothing. But this problem has occurred twice now. Something is wrong. I REPEAT: I am very concerned for my safety in driving this car.

Car keep braking when I go under low bridges or shadows on the road from overhanging trees.

The automatic braking occurs when there are no impediments to forward motion. It has occurred on a periodic basis at least 15 times.

The contact owns a 2019 Honda Accord. The contact stated while reversing out of the driveway at an undisclosed speed, the back over prevention camera failed to function as intended. The contact stated that the images displayed were not clear and the screen showed colorful art. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 34,600.