Which parts fail
Components named in complaints (automatic emergency braking, adaptive cruise, lane keeping, backup camera).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2019 Honda Accord Hybrid owners, lightly cleaned up (personal details are redacted by NHTSA).
Multiple time the car will apply the emergency braking system when there are no cars in front of me. Mainly it happens on a multi-lane road and I am overtaking the car to the right of me, especially if I am on a curve to the left. The car will suddenly apply the brakes which can aid to the loss of control of the car. If the road were icy, it would almost certainly cause a loss of control and an accident. It has happened on a straight stretch of road, but it is more rare. Initially this was a rare occasion, however it has increased in frequency as the car ages. Now that the warrantee has expired I have not taken it in to have it checked, but I feel I am going to need to do it. There were no warning signs, lamps, or messages other than the brakes being applied and the emergency braking light coming on. When I saw there were other occurrences of this issue, I had to file this complaint. …
07/28/2023 - Car showed many brake system errors: electric parking brake, vehicle stability, adaptive cruise control, etc. Took to Heritage Honda, Bel Air, MD, and got error code diagnosis of PI20-00, brake system/pedal simulator failure. Heritage "reflashed" pedal simulator and cleared code. Told OK to drive but if brake system errors showed up again, pull over to side of road and have car towed. Drove 20+ miles home. 07/29/2023 - Car again showed brake system errors as on 07/28. Husband and I drove car around our development and there were no brakes, even after husband pumping and pushing down on brake pedal very hard. 07/31/2023 - Flat bed towed car to Martin Honda, Newark, DE and got same error code. Paid to replace brake pedal simulator, PN 01469-TWA-A56. Issue is that brake system did not fail safely, because failure of pedal simulator left me with no brakes. …
All of sudden, no incident, no accident, a lot of things were disabled such as Adaptive Cruise Control , Forward Collision Warning , Lane Departure Warning and more while I was out of town (long range highway travel). When I went to Honda dealership, they blamed a few things and fixed them (expensive), then they said that the front camera needed a calibration. It was expensive. After that aiming correction, everything works fine. The camera was NOT broken. It just needed recalibration, and it costed about a thousand dollars. I would say it was caused by the poor design, which is Honda's fault. I googled this issue and found a lot of Honda owners had same issued and charged 1K ~2K for it. I will report it separately, but my Honda Odyssey has the exactly same issue now. I have 2 Honda cars, and both of them have the same issue. …
While traveling at approximately 55 mph yesterday, in daylight, with no other cars in front, back, or to the side of our car, it radically braked on its own. The collision mitigation system warning light has frequently flashed on the dashboard since we bought the car new in 2019 but never did it apply the brakes on its own. Dealerships over the years have told us "this just happens", and offered no fix for the false positive alerts. This is a dangerous situation which could result in an accident or even death of occupants if not resolved by Honda. I spoke with several dealerships since the phantom braking event and they tell me they hear this complaint often. Being an intermittent situation, it is extremely difficult to diagnose and resolve. Something needs to be done.
I saw NHTSA is investigating some Honda vehicles for unnecessary emergency braking incidents. I've had this problem as well and wanted to report it. The 2019 Honda Accord Hybrid, multiple times over the past 3+ years, has engaged the brakes when there were no cars in front of me. From my recollection this happens at medium to high speeds (40mph+) so if someone were behind me they may rear-end my car. This has happened probably a half dozen times over the past 3 years but there is no way to reliably reproduce it as it seems random. I haven't had any inspections, nor are there any warning lamps or messages relating to this. Note: The date I am including is not necessarily when it happened as I don't have those dates. But it's required.
Suddenly I get warnings of failure of adaptive cruise control, failure of braking, stearing and forward collision warning failure. It goes away if I drive my vehicle for few miles but then suddenly appears again. No one seems to know what is the issue. I tried to reset setting multiple times, checked system updates and checked battery etc, asked to check if there are any faulty codes but no one seem to know what is going on. It keeps happening every day
I was driving on a city street at about 30mph. There was no one in front of me or behind me. Nothing in the road. The orange rectangular brake light came on for no reason, kept flashing and it felt as if the brakes were automatically being pumped, slowing the car down to a compete stop. In addition, I had no control of the steering. It was very dangerous situation which could have resulted in accident or injury.
The Lane Departure Warning. Auto Dimming Headlights,, and traffic sign Recognition system stopped working at about 40000 miles. The dealer says they can't fix it. Also, my windshield, like so many others I've read about, spontaneously cracked while parked, on a day with moderate temperature and no hail. The camera was realigned. Still, the 3 sensing aids above still don't work. Uncertain about exact date
Noticed there is already an investigation open. My car is literally afraid of shadows and other objects that just aren't there. It will slam on the brakes as it detects that there is an impending crash despite any cars near me. It has almost caused 3 accidents with the cars behind me. I took it to my local honda dealership and they told me nothing was wrong with my car and everything was fine.
I was driving on a local urban street, probably 20 mph, when car suddenly braked hard for no reason. My foot was not on the brake at the time, and there was not a car or potential collision in front of me to trigger this. I reported the problem to the dealer, and they performed a software update. They weren't able to tell me if it was a general update or one specific to this problem.
Related recalls
Back over prevention › Sensing system › Camera
Honda (American Honda Motor Co.) is recalling certain 2018-2020 Accord Sedan, Accord Hybrid, and 2019-2020 Insight vehicles. A software error may cause intermittent or continuous disruptions in communication between the Body Control Module (BCM) and other components.
Remedy: Honda will notify owners, and dealers will update the BCM software, free of charge. The recall is expected to begin February 22, 2021. Owners may contact Honda customer service at 1-888-234-2138.
NHTSA investigations
Inadvertent Automatic Emergency Braking
On February 21, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE22003) to assess reports of inadvertent activation of the Collision Mitigation Braking System (CMBS), an automatic emergency braking (AEB) system, in model year 2017-2019 Honda CR-V and 2018-2019 Honda Accord vehicles.
Collision Avoidance complaints in other Accord Hybrid years
Frequently asked questions
How common are collision avoidance problems on the 2019 Honda Accord Hybrid?
NHTSA has 22 complaints about the driver assistance of the 2019 Honda Accord Hybrid, 23% of the model year's 94 complaints. The component named most often is automatic emergency braking (16 mentions).
Is there a recall for 2019 Honda Accord Hybrid collision avoidance problems?
Yes — NHTSA recall 20V-771 (camera, Dec 10, 2020). Recall repairs are free at authorized dealers.
At what mileage do 2019 Honda Accord Hybrid collision avoidance problems start?
Half of the complaints with a recorded mileage happened before about 35,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 0 injuries to driver assistance problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.