What 653 owners told NHTSA about the 2019 Honda Accord Plug In Hybrid

The contact owns 2019 Honda Accord. The contact stated that while driving on several occasions at various speeds, the check engine, tire pressure, brake system, lane departure warning lights illuminated and remained illuminated. The contact added that the vehicle then jerked stalled. The vehicle was able to restart after two attempts. The vehicle was then taken to dealer where it was diagnosed that the rocker arm needed to be replaced. The vehicle was repaired reoccurred approximately a week later. The vehicle was taken to another dealer where it was diagnosed that there were 16 unknown codes that populated and there was an unknown diagnosis. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 90,000.

NHTSA ODI 11735469

It’s started at 80,000 miles when my check engine light came on and it give a code P0302 So I change the spark plugs but when I replace it with the new one the code came but the code came off and after a few days later it came back on and it throw the same code. I believe that my head gasket is not good.

NHTSA ODI 11734550

The vehicle began experiencing engine performance problems including rough idling, vibration at startup, and a check engine light. Diagnostic testing indicated a misfire condition. Further inspection suggested coolant intrusion into the engine, consistent head gasket failure. The issue appears to involve the engine cooling and combustion sealing system (head gasket), which is a critical internal engine component. When the problem occurs, the engine runs poorly and may lose power, increasing the risk of stalling or failure while driving, which could create a safety risk in traffic. The problem was confirmed through diagnostic testing at a service center. Compression testing and engine diagnostics were performed, and results pointed toward internal engine issues. No repair has yet resolved the underlying problem. Warning indicators included the check engine light, engine vibration, and rough running conditions, which appeared prior to diagnosis. The issue has been observed consistently since symptoms first began and has not been fully resolved.

NHTSA ODI 11733899

The contact owns a 2019 Honda Accord. The contact stated that while driving 80 MPH, the vehicle unexpectedly lost motive power and stalled with several unknown warning lights illuminated. Additionally, the check engine warning light was illuminated. The vehicle was able to restart; however, there was a cranking sound coming from the vehicle. The contact stated that the failure had reoccurred several times while driving. A mobile mechanic inspected the vehicle and cleared the warning lights. The mobile mechanic retrieved DTC: P0078 (Fuel rail pressure failure). The vehicle was not repaired. The vehicle was later taken to the dealer, but it was not diagnosed or repaired. The contact was informed that the failure could not be duplicated and that no fault codes were found. The manufacturer was made aware of the failure. The approximate failure mileage was 97,000.

NHTSA ODI 11733320

On April 14th, 2026 we were driving on the road, the car overheated. We shut it off, sat for a few minutes. Started driving again and had to sit in roadwork, within 1 minute the car started to overheat again. We pulled into the gas station, checked coolant levels, all fine. We let the car sit for 20 minutes or so, we tried to turn the car on and the engine started sputtering and all dash lights came on. We got the car towed to a shop, they looked over the car and told us that coolant had leaked into the cylinders and the head gasket was blown but there was no leak in any of the coolant areas. They quoted us over $7000. So we are out of a car while it’s at the shop waiting to get fixed.

NHTSA ODI 11732176

My car started getting hot, began to overheat. I was on my way home on freeway. Second lane from slow lane. My car began to loose power, I could no longer excelerate. There was a big rig coming up behind me he was not slowing down as he got closer began honking I was trying to flag him that I could not move, as I was trying it started to go like 5 miles per hour where i began slowly to get over, cars in the other lane slowed down. Big rig went around me and avoided any collision. Thank God. I slowly made my way home on the streets with heater blasting. I towed my car to the dealer. I was told, my head gasket needed to be replaced, more than likely I would need a knew engine. Dealership said it was because when taken my car in for service I did not bring to the dealership. Cashier told me that there have been several incidents as mine.To my surprise I googled 2019 Honda Accord engine, and there were many with the same issue same car same year. Yet no recalls! I was lucky not to have been killed or have caused a multiple car collision. Are we waiting for someone to be killed to recall these engines. I missed several days of work, borrowed cars and rented a car to get back and forth to work not to mention the tramatic experience of a big rig coming at you honking on a FREEWAY. A week prior to this incident, my lights on the dashboard came on. I did call the dealership to set up an appointment. At that point they were no signs of overheating. I have taken my care in faithfully for oil changes where all fluids are checked, i was not told not once that any fluids were ever low, last visit was approx 5 months ago. I have called to have them send me all receipts. However in hindsight I do not need theses records as it has been proven by other people they have had the same experience. We are not talking about a faulty air conditioner we are speaking of an engine, in my case power failure. In the even records of oil changes and dealership diagnosis is required. I can email.

NHTSA ODI 11732151

My 17 year old drives this car and has suddenly stalled and gone into limp mode 3 separate times (twice on busy highway) with no warning or codes provided. Most recently the vehicle alerted of overheating. After a couple trips to mechanic it was determined that head gasket is going out. It seems that this is a very common problem with this vehicle and an extreme safety hazard. Especially with young drivers as it sent my daughter into panic and nearly caused accident on initial breakdown.

NHTSA ODI 11730832

The contact owns a 2019 Honda Accord. The contact stated that while at the stop sign to access the feeder road, while accelerating, the lights started flashing on the instrument cluster. The vehicle failed to accelerate above 5 MPH. The driver turned on the hazard lights, made a U-turn, and pulled over a block away at a stadium. The vehicle was turned off. The contact retrieved DTC: P0301, P0302, P0304, and P0300. A code reader was used to erase the codes. The vehicle was restarted and driven as designed. While the contact’s wife was driving, the vehicle failed to exceed 5 MPH. The vehicle was taken to the dealer for a routine recall repair on the fuel pump and software. The dealer informed the contact that the failure was not related to a recall. The vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was approximately 85,000.

NHTSA ODI 11730158

Head gasket failure was diagnosed by a certified dealer. The only symptom leading up to the failure was slight hesitation when starting the vehicle. Safety issues include sudden engine power loss, engine fire, overheating, and reduced visibility from thick white smoke, and the potential loss of steering or braking power.

NHTSA ODI 11729772

I brought my 2019 Honda Accord to dealer for safety recall for something with the fuel system. Since then, I've been having car problems with acceleration, car jerking, and numerous dash lights coming on along with the check engine light. Had a few incidents where my vehicle was not functioning properly and would break down. Had my vehicle towed once since getting my vehicle back from dealer due to recall. Please advise and please help.

NHTSA ODI 11729325

The contact owns a 2019 Honda Accord. The contact stated that while operating the vehicle, several unknown warning lights illuminated. Additionally, the tire pressure monitoring system, Emissions system, ABS, and electric power steering warning lights were illuminated. Additionally, there were alerts for the adaptive cruise control, collision mitigation, and road departure systems displayed. The vehicle was taken to a mechanic, where it was diagnosed with fuel injection failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 137,708.

NHTSA ODI 11729511

Head gasket 2 has failed on my vehicle.

NHTSA ODI 11729563

All my warning lights are on. Drives fine but I can’t use cruise control or any safety features. Replaced the module but they said I need it synced with my vin???

NHTSA ODI 11729093

I own a 2019 Honda Accord 1.5L with 112,985 miles. The vehicle developed a blown head gasket with coolant leaking into Cylinder 3. The failure was first confirmed via a combustion leak (CTR) test performed by an independent Honda specialist (Hond-Auto Specialist) on March 2, 2026, and later confirmed by an authorized Honda dealership (Vandergriff Honda, [XXX] ) via borescope inspection on March 23, 2026. Repair estimate is $4,799.81. This is a known defect. American Honda Motor Co. issued two internal Priority/Action Required memos to all Honda Service Managers and Advisors — April 2023 and August 2024 — confirming they were actively investigating this identical head gasket failure on 2018-2022 Honda Accords equipped with the 1.5L engine. Despite this internal investigation spanning multiple years, Honda has not issued a recall. A federal class action lawsuit [XXX] v. American Honda Motor Co., Inc.) has been filed alleging Honda knew of this defect before these vehicles were sold. I am requesting NHTSA investigate and compel Honda to issue a formal recall for all affected 2018-2022 Honda Accord 1.5L vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11726805

The contact owns a 2019 Honda Accord. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The check engine warning light was intermittently illuminated. The contact restarted the vehicle to correct the failure. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact related the failure to NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 94,000.

NHTSA ODI 11725253

Car lost power on freeway, had the car towed to local Honda. After several hours of sitting at dealership and talking to several different employees. One employee comes back to tell me the head gasket was blown and needed repaired. And that this is a common issue he has been seeing in this make/model of car.

NHTSA ODI 11724133

The turbo! Code P0299! Hundreds of thousands of Americans going through the same issue all their lights are flashing on their dashboard with these 1.5 T engines

NHTSA ODI 11722615

Approximate date (around January 2026), location (e.g., Newburgh, NY area), and circumstances (e.g., during normal driving). No crash/injury mentioned in my case, but note if it stranded I, required towing, or felt unsafe (e.g., potential for sudden power loss). While driving, all dashboard warning lights came on suddenly. The vehicle experienced rough running/misfires. Dealer diagnosed low coolant, pressure tested the system, and confirmed coolant intrusion into cylinders 2 and 3 due to head gasket failure. This required full head gasket replacement (parts/labor ~$4,567 total before any goodwill). No external leaks noted initially. Concerned this could cause engine stall/overheat while driving, posing a safety risk.” Dashboard lights, possible misfire codes (if any DTCs like P0302/P0303 were pulled), low coolant without visible leaks. dealer diagnosis (Morehead Honda? from Eric Koller), repair done/recommended, cost, and that American Honda provided 35% goodwill (shows it’s out-of-warranty but recognized issue) Only 91000 miles on the vehicle.

NHTSA ODI 11720728

Check

NHTSA ODI 11719766

The vehicle would overheat and lose power. At first, the dealer stated that they could not find the issue, which continued. I was not able to drive the vehicle, and I am a first responder, which caused issues getting to my job. Finally, one of the dealers advised that the head gasket had to be replaced. The dealer insisted that the head gasket was not covered under warranty despite my keeping the vehicle regularly serviced.

NHTSA ODI 11717331

Was told I have a blown head gasket on cylinder 3 with 90k miles on my vehicle. No check engine light has been on.

NHTSA ODI 11717046

I was taking my wife’s 2019 Honda Accord into a dealership for a factory recall with a fuel pump issue. After I dropped it off, I got a phone call, letting me know that they had some bad news and that the cars third cylinder had failed due to a blown head gasket and coolant leaking into the cylinder. There has never been a check, engine, light or code or sign of any kind of issue with this vehicle up to this point I have it regularly serviced at Honda dealerships after doing some research. This seems to be a recurring issue with people in this make and model of Honda Accord with the 1.5 T engine. I would like to have someone contact me regarding the expense related to this repair as I believe it should not be on the owner to cover such cost when it is a recurring and known issue with this vehicle.

NHTSA ODI 11716047

Head gasket failure was noted and happened at about 95000 miles. Crack in a cylinder lead to leaking of coolant and caused misfires and check engine. Was let know that if ignored engine could “expire” at a random time if not dealt with asap could have lead to a crash, injury, or harm others or property. Has the problem been reproduced or confirmed by a dealer or independent service center? The problem was confirmed by dealer and partially before dealer by independent mechanic. Vehicle was inspected by dealer and trusted independent mechanic. Zero warning about failure up until failure. Vehicle entered safety crawl mode when engaged in any throttle with resistance up hill or on flat over 20 mph. First appeared just shy of 95000 miles. A known issue in many many of this specific make and model of car with varying years.

NHTSA ODI 11715226

My vehicle started having issues with misfires approximately 2 years after I bought it in January 2020. I bought it new from the dealership in Salinas California. I took it to Morgan hill Honda for repairs. It’s had 2 misfires and I took it in for a Fuel pump recall. About 2 weeks later all my lights in my dash come on. I took it in to get looked at and they said it’s the turbo engine, $3k to fix it. I’ve had nothing but problems and it’s like a bandaid of a fix every time. The first time it happened I was merging onto highway [XXX] and it gave out and slowed down to 25MPH. I had to pull over to the shoulder almost caused an accident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11713629

Engine began to have an odd stutter and trouble accelerating which was initially believed to be spark plugs after a full tune up did not fix the issue took to my local mechanic. Diagnosed the issue as bad fuel injectors likely due to the fuel pump recall. Code popped up as cylinder misfire initially which didn't make much sense considering a full tune up was completed less than a month prior. After further diagnosis issue was found to be a blown head gasket causing several thousand dollars in repair due to having to completely disassemble and reassemble the engine.

NHTSA ODI 11710503