2019 Honda Accord Hybrid: false forward collision warnings

Filed Sep 5, 2025 · Driver assistance · OK

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.

Filed Jul 1, 2025 · Driver assistance · CA

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. I strongly suggest that Honda should recall their front camera and they should reimburse the expense we already paid for it.

Filed Apr 3, 2025 · Driver assistance, Electrical · FL

Forward collision warning stopped working after a system upgrade on my 2019 Honda Accord hybrid. I activate the forward support and immediately it turns off. This is a safety issue. The system assist in breaking in time to maintain car distance and avoid a collision. Contacted Honda. I was told to take it to service at my cost.

Filed Feb 27, 2025 · Driver assistance, Electrical · AZ

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

Filed Dec 2, 2024 · Acceleration, Electrical · CA

Mid October 2023, we driving on the freeway and the car started to slow down on its own. We could not accelerate to match the speed of cars around us or to get the speed limits in a 55 to 65 zone, making it dangerous for us and others to continue driving on the freeway at extremely slow/low speeds. We towed it the dealership, who said it was defective spark plugs. This car was only 4 years old with extremely low millage and the spark plugs should've last a lot longer. They changed the spark plugs under warranty. Late November 2024, we were getting off the freeway and the check engine light came on but there were no service codes. Everything was running normally except for the engine was making a loud noise. We parked at a shopping center and approximately 30 minutes later, restarted the car and all these messages and icons appeared for: Vehicle stability assistant system problem, Hill start assistant problem, ACC, Collision Mitigation breaking system problem, Road departure mitigation system problem, Emissions system problem, TPMS, Brake system problem, Electric power steering system problem. Towed it dealership and after an hour of diagnostics testing, they said it’s the spark plugs again! Just a little over a year and 2 out of 4 spark plugs are bad again. This is not right. We hardly drive this car and it’s only a little over a year since the spark plugs were replaced and a little over 5 years since we got the car brand new. Spark plugs are supposed to last 10 years or 100,000 miles and we’re not close to either. This time they said it's not covered under warranty and is over $800.

Filed Mar 15, 2022 · Driver assistance · MI

Collision mitigation braking system error reported on the car it says to take to the dealer for service also says that adaptive cruise could be affected also. I read that many other owners are reporting this issue.

Filed Nov 20, 2021 · Electrical, Engine · OH

Vehicle repeatedly experiences a "cylinder misfire error" when driving above 45 mph. The check engine light will flash and the car surges like it is stalling. Loss of the ability to accelerate when it occurs. Also, the car shakes violently when the vehicle comes to a stop before turning off the engine. Many times, after restarting problem temporarily stops. I have taken it to the dealership multiple times, but problem is unsolved. Happens at least once a week. Started at 58,000 miles. More recently, the vehicle experiences a safety system failure when driving above 45 mph. 10 system warning lights were activated and will continually appear on instrument panel. Warning lights activated: 1. Hill Start Assist Problem 2. Adaptive Cruise Control System Problem 3. Collision Mitigation Braking System Problem 4. Road Departure Mitigation System Problem 5. Emission System Problem 6. Tire Pressure Monitor System Problem 7.Brake System Problem 8. Electric Power Steering System Problem 9.Vehicle Stability Assist System Problem 10. Brake Hold System Problem

Filed Jun 28, 2021 · Driver assistance · IA

On 6/25/21, while driving my 2019 Honda Accord Hybrid Ex-L, at a speed of 30-40 mph the car displayed various warnings. I was on a major road with no where to pull over. Within about a block the car unexpectedly braked hard and slowed down from about 40 to 15 mph. I attempted to press on the gas to avoid causing an accident but, the car continued at the slower speed and did not react to my gas press. This issue then cleared and I was able to accelerate. This was very scary but to make it worse about a 1/2 block later my car veered to the left and out of my lane, again at this point I was on high alert and the veer was not correct. I was able to gain control and get the vehicle back in the correct lane. I then pulled into a parking lot(~1 block later). I tried to document all of the warnings at this time. I called Randy Kuehl Honda and decided to drive back roads to the dealership(~4 miles). Prior to arriving(~3.8 miles into drive), additional warnings were displayed. I arrived at the dealership and they said that the issue was because there was a crack in my brake light and water had gotten in. But I am having a hard time accepting that because of a busted taillight it is normal/acceptable/safe for the car to brake and swerve and lose all of the indicated systems. Seems like a pretty big SAFETY CONCERN. I can quickly find other instances similar to mine on the internet. Below is a list of all the warnings I was able to remember. I also noticed while I was parked that the red "BRAKE" was displayed but I did not have the parking brake on. ---Initial warnings Electric Parking Brake System Problem(SP), Parking Brake Not Available Brake SP Brake Performance May Be Reduced Brake Hold SP. Apply Brake When Stopped Adaptive cruise control SP Collision Mitigation Braking SP Road Departure Mitigation SP ---Later Electric Power Steering SP Vehicle Stability Assist SP Lane Keeping Assist SP Anti-Lock Brake System (ABS) SP

Filed Jan 7, 2021 · Driver assistance, Electrical · 34,856 miles · VA · crash

On december 26, 2020, I was leaving work, after a 12 hour shift at the hospital. While backing into an alleyway my car struck a large roll-off dumpster (which was caddy cornered in the alley) of the back, driver quarter panel and back driver door. The rearview camera, blind spot warning, parking collision warning, the rear cross traffic warning, nor the automatic emergency braking kicked in. I was going at a very low speed at the time of the incident (~1-2 MPH). My car had been warmed up prior to getting in it.I did not spend over 40k on a vehicle for the the safety features to not work when you need them to. I have noticed that I have also had issues with my lane departure warning and the forward collision warning has been not working 100% of the time recently, but that never bothered me before. What is upsetting is that I have already had to have honda replace the front sensor due to my car throwing codes (lkas, adaptive cruise control & front collision warning) not functioning, as well as my back driver door lock (already gone bad). Now this. My car isn't even 2 years old.I took my car by my local dealership (priority honda of roanoke) on 12/30/20 where I was told to contact american honda because of the recall on the bcm on my car and was told that this most likely contributed to the accident. After contacting american honda I was basically told that it is not a safety recall but a "non-compliance" recall and that the safety features they boast about are not actual safety features of the car and should not be relied upon in any case. So, they do not stand behind their vehicles. This incident could have been so much worse and I am thankful that it wasn't, but I am still sickened over this! I purchased a brand new car for its safety features that don't work, to be told by the manufacturer that they are not liable for their product not working correctly.