Vehicle Speed Control Problems of Honda Accord - part 1

The head gasket leaked and a piston warped. The symptom was feeling a piston misfire and then the car wouldn't go over 10 miles per hour. Our safety was compromised because we were on a busy (45mph) road and couldn't turn off quickly nor go fast to keep up with traffic. The problem has been reproduced at an independent service center. The vehicle has only been inspected by the mechanic. The previous week all the electrical systems reported a failure. That was repaired by replacing some hose that collapsed on itself. During the misfire, the check engine light flashed, but it didn't before or after (when we were driving very slowly).

See all problems of the 2018 Honda Accord 🔎.

My vehicle is losing power while traveling on the road. All of the system lights are flashing and the gas mileage is ridiculous. It sputters uncontrollably and just stalls out and drops speed really quick. I’m really concerned for my well being. I’ve spent so much money trying to fix these issues and I don’t think it’s fair to me or any other Honda owner to have to be held responsible for something that is clearly a manufacturing issue. Although there was not a crash during this incident, it’s very dangerous and I’m terrified to drive my car but I have no other transportation right now.

While pulling into a parking spot my car unexpectedly accelerated. Brakes were unresponsive even after placing both feet on the brake pedal. Vehicle stopped only after I hit a tree. Engine continued to rev at which point I placed the vehicle in park and shut off the engine. Although the impact of the crash was severe my 1airbag did not deploy.

See all problems of the 2017 Honda Accord 🔎.

The issue involves the adaptive cruise control and automatic emergency braking systems. When engaged, the system intermittently and unexpectedly applies full braking force while I am changing lanes on the freeway, even when no vehicle is directly in front of my car. This has occurred multiple times at highway speeds, causing the car to slam on the brakes abruptly, which poses a serious safety risk particularly when other vehicles are following closely behind. The issue most commonly happens when the adaptive cruise control is active, but it has also occurred occasionally when the system is not engaged. There are no consistent warning messages or error indicators before the event, aside from the brief flashing of the emergency brake light at the moment of braking. The problem has not yet been inspected or confirmed by a dealer, manufacturer, or independent service center.

I hereby state that my 2021 Honda Accord has experienced major mechanical failures involving the transmission and head gasket. The vehicle began exhibiting mechanical issues including rough shifting, loss of power, and engine overheating. Upon inspection by a qualified automotive technician, it was determined that both the transmission and head gasket have failed prematurely. These failures have rendered the vehicle unsafe and inoperable, resulting in significant repair costs, loss of use, and financial hardship. The nature and timing of these failures suggest a possible manufacturing or design defect. This statement is submitted in support of a formal claim and potential legal action against the responsible parties for the defective condition of the vehicle.

See all problems of the 2021 Honda Accord 🔎.

All lights have popped up on dash. Stayed on for 2 days back in July and then went off. Came back on 2 days ago (oct 5th) and have not went off yet. Lka, cruise control, parking brake light, tpms, traction control, and engine light.

See all problems of the 2020 Honda Accord 🔎.

In the past 2 months my car starting having rough idle issues. As recommended by the dealership, I replaced the head gasket as they said it was leaking coolant into the cylinder causing the rough idle. Almost immediately after paying for this, the dashboard lit up like a christmas tree with multiple warnings and the car went into limp mode, lost acceleration and would have been extremely dangerous had we been on the interstate or multi lane road. Took it back to the dealership, ran another diagnostic and determined the fuel injectors needed to be replaced. These repairs cost over $5,000. Recalls have already been put in place for models around this one and Honda should acknowledge these problems as it is wide spread.

See all problems of the 2019 Honda Accord 🔎.

On Tuesday, September 23, I was applying the brakes as I was approaching a stop sign. When I had slowed to about fifteen miles an hour the car suddenly accelerated and the brakes were not enough to stop it so I shifted into neutral and stopped. The engine continued to race in neutral. I shifted into drive and things returned to normal. I then started to move forward and the car suddenly again accelerated rapidly. I shifted into neutral and then into drive and things returned to normal. I then drove home without a further problem.

See all problems of the 2011 Honda Accord 🔎.

When traveling on an interstate highway in the left lane of a 2-lane highway with the adaptive cruise control turned on. Passing a tractor trailer going slower in the right lane, the car will apply the brakes unexpectedly. The dash will briefly show a "ghost" truck crossing into the left lane. The unexpected braking causes any vehicle behind the Accord to brake. Putting those vehicles and any behind them at risk. Smart Honda of des moines looked at the car on sept. 22, 2025 reported no error codes and nothing could be done. If the Accord hugs the far left shoulder, no "ghost" breaking occurs. If the adaptive cruise control is turn off and regular cruise control is turned on, no "ghost" braking occurs.

I have taken my car to the Honda dealership on multiple occasions because my car has stopped accelerating while driving on the interstate. The car will flash the check engine light and completely stop accelerating while driving. I was first told it was the fuel pump that was recalled and waiting over a year on the recalled part and multiple times breaking down while driving they finally replaced the part. After the dealership replaced fuel pump I continued to have problems unfortunately happening more often and worse than before replacing the fuel pump. I was then told my car was misfiring and needing a tune up which would involve replacing all four coil packs and spark plugs. I replaced all of these recommended parts with no resolution to my problem. I have since be told by the dealership my car needs all four fuel injectors replaced after running the diagnostic tests. After doing research it seems to be a common problem with this make and model car. I can’t believe with as many cars with this same issue and the safety issues with completely stalling in the middle of traffic there are no recalls on these cars.

Upon commuting to work, the car failed to accelerate causing the car to almost suddenly stop while driving; at the same time of the failure warning lights and beeping occurred. No warnings prior to failure. By god’s grace, I was not yet on the expressway and avoided what would have been a horrible accident jeopardizing not only my life but the lives of anyone that would have been behind me. The gasket failed (cylinder #3) and is available for inspection upon request. It was a significant safety issue as the failure occurred without warning causing the car to stop no warning. Yes, the dealer has confirmed the failure and I was quoted a $5800 repair cost in spite of a owning a lifetime power train warranty. No, the vehicle or component has not been inspected by the manufacturer, police, or insurance. I did place a call to american Honda and we were given a case #15822812 (but this case has since been closed without action. ) no warnings occurred before the failure. (beeping and messages occurred at the time of failure. ) had the failure occurred at a high rate of speed, on an expressway, loss of life could have occurred and no one would know what caused the accident since cars are usually towed away and declared “totaled. ” fortunately, I was on a road of 35mph but in just a few more minutes would have been at a speed of 65mph. There is a further safety concern that the dealer admits that there is a known problem with the oem component but plans to continue to replace with the same product. Note: this car has a superior care record and only 110,000 miles which means the failure is likely to occur again with the same parts. Internet searches are confirming this is a known product failure with no recall.

Component/system: collision mitigation braking system (cmbs) or related software. Vehicle available for inspection. Safety risk: vehicle brakes or decelerates unexpectedly during normal driving, risking rear-end collisions. Most recent incident on August 23, 2025, required override by pressing accelerator and shifting to neutral in traffic. Reproduction: dealer could not replicate issue during may 16, 2025 visit. No diagnostic codes found. Radar and braking systems reported as “operating normally. ” a second evaluation occurred after September 5, 2025, with no resolution; issue persists. Inspection: inspected by Honda dealership twice—on may 16, 2025 (invoice #488382) and again after September 5, 2025. No third-party inspections. Symptoms: braking occurs in sport, normal, and econ modes. Happens when accelerating from stop or easing off accelerator. Brake light activates falsely. No warning lamps or messages prior to failure. Issue has occurred 10+ times over the past year. Related software issues: radio failure (resolved via software update). Clock shows incorrect time. Apple carplay fails to connect until restart. Navigation compass shows concentric circles.

See all problems of the 2024 Honda Accord 🔎.

This car came with problem and I want to this if Honda can fix it for free since its they mistake.

I have been having problems with many dashboard lights coming on at once. I got it checked out and I got abs code 123 - 11 and code 81 - 20. This has been going on since the beginning of August 2025. This could lead to dangerous malfunctions, and is one of the most expensive things to repair. It is my understanding that many many vehicles between 2013 and 2017 in the Honda range I've been experiencing this to the point of where we need a recall.

See all problems of the 2013 Honda Accord 🔎.

I never was informed about the fuel pump recall , all the lights on my car came on , acceleration was slower , car was jerking , and when taking it to Honda they stated 2 of my cylinders has a misfire and water or coolant leaked and blew my head gasket , the car never ran hot and the guy asked did any light come on and I told him for some old reason every light on the dash was on and the car is vibrating while even in park reverse and when it's moving . I've read up on this and there are numerous of people with this same issue and this should mean something , Honda stated it would cost 6000 to fix when they should have already been warning people of the matter ahead of time . For some odd reason the car would just drive 10mph when I am driving jumping out in traffic having to pull over and restart the car . Guy at Honda even stated fuel pump could have been the issue and they have witness this with other cars like mine.

Unknown.

I tried to take my car to the dealer because my car brakes on its own and it had a alert that something was wrong with the air bags . I can ve driving anywhere and without reason the car breaks putting my life in danger and my family. I have tried to contact the dealer about this serious matter but I don't get anywhere. I am reaching out to see what solution we can come to ?.

Vehicle power loss and system malfunctions I am writing to formally express my concern regarding a recurring and potentially dangerous issue with my vehicle, 2023 Honda Accord hybrid. Twice while driving, the vehicle suddenly shut down on the freeway and completely lost power. In both cases, I was fortunately able to steer the car to the shoulder of the road, but this posed a serious safety risk. During these incidents, multiple system error messages appeared on the dashboard, including alerts related to braking, lane departure, and other critical functions. Alarmingly, this same issue has also occurred while the vehicle was parked in my garage. Each time, the only way to temporarily resolve the issue has been to shut off the vehicle and restart it. Upon restarting, the only remaining warning is related to the braking system, along with a prompt to bring the car to the dealership. If the vehicle is restarted again, all error messages disappear. I have contacted my dealership after each occurrence and brought the vehicle in for inspection. My car is currently at the dealership, and I am awaiting information on the cause of the problem and the proposed resolution. After the first time it happened, I have taken video/pictures of the errors and supplied same to the dealership. I consider this a serious safety concern—not only for myself but also for any passengers and other drivers on the road. Quite honestly, I am now afraid to drive the car, knowing that it could unexpectedly shut down at any moment without warning.

See all problems of the 2023 Honda Accord 🔎.

All lights on head dash are on , all components are not working properly or effected because of this. (engine light brake light abs light tire light traction control light , sensors out all) while driving vechile reduces power does not operate randomly , have to pull over shut the car off and turn it back on. Has high vibrations lot of shaking, stauling. I have had it looked at with multiple shops and dealer . Everybody is playing a guessing game and can not pin point what exactly it is . Was told it was spark plugs and coils, alternator , fuel injectors. All have been repaired, and still have all lights on dash and still facing every problem listed after repairs. Been inspected by manufacturer. Say not been resolved was told if it wasn’t what was already fixed they don’t know and that this is very common right now . It first started about a month ago.

Abs modulator assembly has left me stranded I see that this has been a major issue for Honda's. There has not been any recalls for this issue but they see that it is a major problem. I was told by king Honda in auburn alabama that this is a $2000 dollar issue and they do not know when the part will be available due to being on backorder. Please advise.

See all problems of the 2015 Honda Accord 🔎.

Purchased new delivery date: August 13, 2024 this is an ongoing issue, car indicates radar needs cleaning. Each time I pull off road to check radar no such cleaning is needed, it's clean. Once the car indicates that the radar needs cleaning I loose multiple functions, cruise control, lane assist etc. Attached picture.

I was driving on the highway yesterday when all of a sudden several errors flashed on my dashboard, and my gas pedal stopped working. When I pulled over, I noticed an error code that read: "brake system problem. Brake performance may be reduced". Not only did I lose all acceleration control, but the error codes tell me there are brake issues. After researching online it seems like many others have experienced this issue and some people found the issue was caused by a faulty ignition control module.

My vehicle had been running fine up until the dash lit up, engine check turned on along with the tire pressure sensor and as of right now my car does not accelerate.

On 5/8/25 when the light turned green at the stop light, my car shut down while the gear was on drive. It immediately came back on with the dashboard showing warnings for the (tpms), brakes system, stability system, among others. I accelerated while on drive but the car did not move forward. I turned the flashers on. I had cars behind me honking and going around me. I put the shifter in park. A car behind almost rear ended me. I tried a second time to go by shifting the gear to drive but I had no luck. I put it back in park and turned it off. I turned it back on and the dashboard seemed fine, the car accelerated when I shifted it to drive. This is the second time that the same car shut down on me, the first time was over a year ago when the car was in motion at around 40 mph, I was able to pull over. The first time the dealer replaced a part and told me the problem was fixed. This time around the advisor said there's nothing they can do because they can't replicate the problem. It's very concerning because it can happen at any time anywhere at any speed.

The 1000 miles or so, when trying to increase speed, would feel the gears slip between revolutions. I would let up on the gas pedal then slowly resume pressure, which sometimes worked or sometimes didnt. On April 19th while going up a hill on a side road, the car stalled and transmission warning light came on. I pulled over and shut the car off and restarted was able to slowly continue up hill at 15 miles per hour with the slipping becoming worse ( this is when I first called Honda to bring it in on Monday April 21. ) I was able to arrive to work. After leaving work I pulled out of the parking lot and the car just stalled with all lights and warnings going off from engine to airbag warnings to tire pressure lights going off and dinging. This is when I called a tow truck to tow to the curtiss ryan dealership. After talking to them at dealer they told me that other Accords have had this problem.

The contact owns a 2023 Honda Accord. The contact stated that while attempting to park the vehicle, the brake pedal was depressed; however, the vehicle independently accelerated. The contact veered to the left and struck a cement pole on the front driver side, where the vehicle came to a stop upon impact. The cement pole did not show signs of damage after the impact. The contact then parked the vehicle at the scene. No warning lights illuminated; however, the message “initializing driving” was displayed. The vehicle was then towed to the dealer; however, the dealer declined to repair the vehicle because the vehicle was out of warranty. The driver’s and passenger’s side air bags did not deploy. A police report was not filed. There were no injuries sustained; however, the contact had a tight feeling in the right shoulder. The vehicle was not diagnosed or repaired. The insurance company was contacted. The manufacturer was notified of the failure, and a claim was submitted. The failure mileage was 45,606.

This vehicle was built terrible. It had a blown head gasket at 86,000 miles. The head was warped. My valve guides and seals were compromised and leaking into the combustion chamber. I need a full head resurfacing job with new gaskets all around. New injectors and new valve cover gasket and everything around. This car has a design flaw and needs to be recalled for mediocre heads life. It almost caused me to get crashed from the back from a semi truck because the car decided to lose complete power while on the road. The cars recalls have been addressed but this whole issue with the faulty heads needs to be addressed. My vehicle is in the shop now and I will have to pay a little over $4,000 now. It's a hazard on the road when you get near to 90,000 miles.

Vsa/abs module has gone bad. Loss of emergency braking.

Knock sensor has been replaced twice in 4 years, the emissions engine states it needs to be changed again. This is causing reduced engine power and acceleration and other issues.

See all problems of the 2016 Honda Accord 🔎.

2/24/2025 safety recall work performed at Honda marin; change fuel pump per recall. 4/28/2025 I reported vehicle stalling/misfiring, decelerating on its own and all lights keep coming on as a result of fuel pump change. Marin Honda performed cleaning of battery cables; technician claims nothing is wrong with the car. 5/28/2025 car stalled at intersection, I went back to Honda marin and reported vehicle is still having the same previous issues and complained that this is dangerous to have the car automatically decelerated on its own. This time I requested only for a diagnostic from Honda marin. They spoke to my mom, who was not authorized to approve any work on my car, stated no blown head gaskets but mis-firing on cylinder 3, fixed the issue, passed pressure test(s), no leaks; and car was up to factory specks costs $2812. 77 charged to my mom. 6/03/2025 brought car back to Honda marin, same issues; service dept. Road tested for 4 miles and stated the car was working as normal. 6/11/2025 told Honda marin that the car is stalling and misfiring again; car shut down while on freeway; Honda marin claimed problem was a punctured hose, charged $10. 34 car up to factory specks. 6/12/2025 brought car back to Honda marin; still misfiring, stalling and dash lights coming on. Car will not accelerate past 3000rpm. ; car shut down while in far left land on the 580 richmond-san rafael going to marin county. Honda marin performed leaked down test failed cylinder #4; blown head gasket; verbal quote approximately $5500. 00 to fix. In addition to engine failures I had battery issues as well. Per reddit threads others too are having very similar issues, once the fuel pump is replaced, unexpected additional costs and safety failures often occur. This is a Honda manufacturing defect, the orginal fuel pumps are defective, causing a direct impact on the performance of the engine, unexpected damages which is leading to major finanical and safety costs to the consumer.

Randomly, my car will start throwing many warning signs when I crank my car. Then it magically disappears after 2 days. Also I drive my car past 40mph and the engine light came on and then I could no longer accelerate. My car was slowing down while I was on the freeway. I pulled over, turned my car off then back on. Everything is back to normal. Next day, I crank my car, warning signs again and then disappears. I took my car to the auto shop and they could not find any codes. I have videos and pictures. There’s also a Honda facebook group with my same model car reporting the same behavior.

I was driving approximately 60 mph on a local highway when my the check engine light came on. The dashboard then started flashing warning messages for multiple error messages stating that many features were failing such as power steering, acceleration, brakes, lane assist, stability assist, and more. My car then lost power and decelerated, coming to a complete stop in the middle of the highway. I was unable accelerate or steer my vehicle to the side of the road. No one hit me but this could have easily caused an accident where either myself or others were hurt. I turned the car off and when I restarted it, my dashboard message stated that I had a brake system problem and that I should see my dealer. I was able to drive to the dealer where they ran a diagnostic and could not replicate the problem. They only stated it was a loss of communication in the computer but that "it would probably not happen again. " they did nothing to identify what could have caused the loss in communication and said if it happened again, to bring the car back. I plan to take it to a certified mechanic to inspect the vehicle but I feel very unsafe driving a car that may lose power.

Brake system light keeps coming on.

The vehicle unexpectedly stalled - lost power while driving and the brake system warning light came on. There were no warning lights, messages or other issues with the vehicle prior to this failure. Was fortunate that the car coasted to a stop on the side of a busy road with no traffic following behind. The vehicle was then towed to a Honda dealership for inspection. Was advised by the service department that there was a software update - unbeknown to us. The error code was cleared and the service department completed the pcm update per service bulletin 25-017.

The contact owns a 2010 Honda Accord. The contact stated that after start-up, the vehicle experienced unintended acceleration. The contact stated that the failure had occurred on several occasions while attempting to accelerate from being stationary. The contact stated that the failure had occurred while driving forward or while in reversing, and while turning the steering wheel six degrees in either direction. The vehicle was taken to the local dealer who was unable to duplicate the failure or determine the cause of the failure. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 84,000.

See all problems of the 2010 Honda Accord 🔎.