The vehicle, a 2019 Honda Accord, experienced a catastrophic engine failure (blown head gasket) and entered "Limp Mode" after being operated for approximately 18 months with an unaddressed, high-priority federal safety recall (NHTSA 23V-858). The vehicle currently displays DTCs P0100, P0113, and P023D, which indicate severe air/fuel metering and boost pressure correlation failures. Primary Cause: Consequential Thermal Stress The primary cause is likely thermal degradation of the head gasket resulting from a prolonged "lean-burn" condition. Recall Defect: The recalled fuel pump impeller is known to deform, restricting fuel flow. Lean Condition: A restricted fuel supply causes the engine to run "lean" (too much air, not enough fuel). Lean combustion is significantly hotter than normal combustion. Heat Accumulation: Over 1.5 years of operation with this restricted flow, the engine experienced repeated, excessive thermal cycles that compromised the structural integrity of the head gasket. Limp Mode Trigger: The stored codes (P0100/P0113) show the ECU was struggling to compensate for the erratic fuel/air environment created by the failing pump. Secondary Assessment (The Dealer's Claim): The Service Advisor (Paul) has alleged that aftermarket components and a missing turbo gasket caused the failure. Assessment: While aftermarket parts increase scrutiny, a missing external turbo gasket typically causes an exhaust leak or loss of boost, not an internal head gasket failure. Contradiction: The dealer must provide empirical proof that these parts caused the failure, whereas the NHTSA recall is a pre-documented, manufacturer-admitted defect known to cause the exact stalling and "limp mode" symptoms the vehicle is currently exhibiting. Conclusion: The most probable cause is manufacturer negligence. By failing to provide a remedy part for 18 months, the manufacturer forced the vehicle to operate under a documented defect that creates the exact high-heat conditions required to cau

- Bayonne, NJ, USA

I own a 2019 Honda Accord equipped with the 1.5L turbocharged engine. At approximately [142,000] miles, the vehicle began overheating and losing coolant with no visible external leaks. A Honda dealership diagnosed the vehicle with a blown head gasket caused by coolant intrusion into the engine. The repair cost quoted was several thousand dollars. Honda has denied goodwill assistance dates DEC 16, 2025 at 1:35PM, despite documented maintenance and the widespread nature of this issue in Honda 1.5L turbo engines. This failure occurred under normal driving conditions and presents a safety concern due to sudden overheating, loss of engine power, and potential engine failure while driving. I believe this is a known design defect affecting multiple Honda vehicles, and Honda has failed to properly disclose or remedy the issue.

- Rosenberg, TX, USA

Defective fuel pump from fuel pump recall led to faulty fuel pump injectors, which led to all warning lights to come on at the same time. Honda is refusing to take responsibility of faulty parts that put the consumer at unnecessary risk of injury.

- Bellevue, WA, USA

Blown head gasket, car never overheated. Suddenly lost power in highway and car died. Dealership is stating blown head gasket. Seems to be a common issue.

- Dayton, OH, USA

After the vehicle misfiring, kept changing spark plugs and coil, as well the vehicle shutting over while driving on the highway, having to get it towed and then finally able to get to dealership, Honda said the head gasket failed, so after the head gasket replacement and getting it fixed for $5K, it started to make a noise rattling, took it back to dealership and they said it was the Turbo when I took it back to dealership, they said it was failing, it was not making a noise until after head gasket replacement. The dealer said the turbo messing up wasnt from head gasket replacement, but I-??m very aware it-??s possible and there was absolutely no noise before replacement of head gasket !

- Shawnee, OK, USA

Th head gasket failed in 2019 Honda Accord, it kept misfiring, causing vehicle to not run and shut down. After the dealership fixed the head gasket, it had now caused the turbo to mess up which the dealership said wasn-??t covered. It was taken to Honda dealership

- Shawnee, OK, USA

This has happened out of the blue and randomly more than once recently. loss of power/no acceleration. once it had no acceleration when taking off from a stopped position, and then again it lost acceleration while driving at a speed of around 50MPH the car would no longer accelerate, had to pull off to the side of the road and turned the car off and let it sit for a few minutes and then restarted the car and it resumed to function normally. there are no codes in the system, no warning lights, this has happened 4 different times now. Honda says they cant do anything if they cant make it repeat the problem when they diagnosis it and if the system doesnt have any active codes in it.

- Leeds, AL, USA

While I was driving my car on the highway doing the speed limit of 60mph my car lost complete power and lost speed to below 20mph and would not gain speed. I pulled over on the highway turned the car off and back on. It begins driving again normal. The next morning it was mis firing so I took it in to the dealer and this is what I was told after getting a diagnostic check: FOUND CYLINDERS 1 AND 4 LEAKING COOLANT FROM THE HEAD GASKET. I RECOMMEND REPLACEMENT OF THE HEAD GASKET, FUEL INEJECTORS, AND SPARK PLUGS. HEAD MAY NEED RESURFACED. INCLUDED IS ALSO OIL CHANGE

- Oakland, CA, USA

While driving my 2019 Honda Accord, after about five minutes on the road, multiple warning lights suddenly appeared on the dashboard. The emission system, brake system, power steering, TPMS, ACC, hill start assist, collision mitigation, and vehicle stability assist warnings all came on at the same time. The alerts caused concern for safety, as several major systems such as steering assist, braking, and driver-assist features appeared to malfunction simultaneously. The issue seems related to an electrical or charging system failure (such as the alternator or battery), since all of these systems rely on stable voltage to operate correctly. The incident occurred without warning and could have resulted in loss of steering assist or engine power while driving

- Baltimore, MD, USA

I bought this car and after only owning it for eight months, as I was driving down the freeway, every light on my dashboard lit up, and my car slowed down. I was able to pull to the side of the road, but I could no longer drive my car home and I was commuting. Since the first incident, I have repaired my car having the coil repaired spark plugs, and regular maintenance in the last eight months that I have owned the car and now my turbo charger needs to be replaced. I took it into two different mechanic shops. My car is only at 130K miles this should not be causing an issue with a Honda now I cannot find anyone to repair it without costing me $2000 plus.

- Modesto, CA, USA

I have a 2019 Honda Accord sport 1.5T that has a blown head gasket. I took it to the dealer and opened a case with Honda through their good will program, but was recently denied because they claim there was no manufacturer defect after the dealership inspected it. There seems to be a lot of people that are having the same issues with this engine, and there are a couple lawsuits against Honda regarding it. The car was inspected at a Honda dealership and they diagnosed it as a blown head gasket and quoted the repair of $5200. A case was opened with Honda corporate through their Goodwill program, but was recently denied as not a fault of the manufacturer. The car overheated on 10/10/25 while driving, potentially leading to engine damage

- Columbia, TN, USA

Why the 2019 Honda Accord Turbocharger Deserves a Class Action Lawsuit Many 2019 Honda Accord owners equipped with the 1.5L or 2.0L turbocharged engines have experienced serious and recurring issues with their turbochargers and related engine systems. These problems often appear prematurely and result in expensive repairs, performance loss, and potential safety risks -?" all of which suggest a manufacturing or design defect that Honda has failed to properly address. 1. Widespread Turbocharger Failures A large number of owners have reported: -??Turbocharger failure or malfunction well before 100,000 miles. -??Loss of engine power, whistling noises, or -??limp mode-?? warnings. -??Excessive oil consumption and contamination caused by turbo seal leaks. These are not isolated incidents -?" they indicate a pattern of premature component failure. 2. Manufacturer Awareness Without Proper Remedy Honda has issued technical service bulletins (TSBs) acknowledging certain turbo-related problems, but no recall or extended warranty has been offered to cover affected owners. This shows awareness of the issue but a lack of full accountability. 3. Potential Safety Risk When the turbo fails, the vehicle can suddenly lose power -?" especially dangerous during highway driving or merging. This transforms a mechanical issue into a potential safety hazard. 4. Financial Burden on Owners Turbocharger repairs can cost $2,000-?"$4,000+, often out of pocket since Honda claims these are not -??defects.-?? Many drivers are left paying for repairs on vehicles that should not experience such failures this early. 5. Possible Breach of Warranty and Consumer Protection Laws

- Hampton, GA, USA

My head gasket blew in my car while driving on a highway, causing the car to jerk and completely die on me and it was unable to be restarted. My cylinder walls are scored and my head is completely ruined. It was a safety risk due to me being in the middle of the highway and having no control of the car as it died. It is also the second time the head gasket has blown since having the vehicle less than 3 years.

- Cameron , TX, USA

I have been driving my car and it won-??t accelerate and it-??ll be in traffic and I-??m afraid I-??m going to get into a wreck or break down in the middle of the road. I can hear fluid releasing and when we looked into it, I was losing coolant and looks like it may have vans going into oil. I can-??t afford to get this fixed. Now my husband is affected by the government shutdown and it also seems like no one will fix it. I can go to dealership but I-??m paying so much every time and it-??s so hard. I need this vehicle for work and I can-??t drive it. There-??s been a couple incidents. I can-??t pin point the exact date. I take it to the shop and I-??m being told it was something else. I get that fixed and I have been up to date on maintenance of the vehicle. What can I do to get some kind of assistance?

- Clovis, NM, USA

Vehicle Information: Make/Model/Year: 2019 Honda Accord VIN: [XXX] Mileage at time of issue: ~70,000 miles Engine: 1.5L Turbo (if different, update before submitting) Dealership: Capitol Honda San Jose, California Complaint Summary: Engine misfire, rough running, and head gasket failure allowing coolant into cylinders. Details of the Problem: At around 70,000 miles, my 2019 Honda Accord began running rough and misfiring. Our independent mechanic scanned the vehicle and found failure codes for cylinders 2 and 3. The spark plugs and ignition coils were replaced, but the car continued to run poorly and the misfires persisted. We then took the vehicle to Capitol Honda in San Jose, CA. The dealership performed a diagnostic inspection and a borescope test, confirming coolant intrusion in the combustion chambers. They diagnosed the vehicle with a blown head gasket, noting visible coolant in cylinders 2 and 3. This car has been carefully maintained, never overheated, and serviced on schedule. Head gasket failure at this relatively low mileage is abnormal and appears consistent with defects reported by other Honda owners involving turbocharged 1.5L engines. This condition can cause rough idling, loss of power, and potential engine stalling, creating a safety risk while driving. Repair costs are significant and may indicate a systemic defect in this engine design. Requested Action: Please investigate head gasket and coolant intrusion failures in 2018-?"2022 Honda Accord models, especially those with the 1.5L turbo engine, as this issue appears to be increasingly common and poses a risk of sudden engine failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Los Gatos, CA, USA

In May of 2025, all the lights on my dash lit up and I began getting notifications about my systems not being available. I took my car to my local Honda dealership and was told that there was an issue with the clips on my turbocharger and they would have to be replaced. I laid $309 + $120 diagnostic to have that tested and fixed. I drove the car for exact two weeks, and the same issue occurred, I returned my car to Honda and they told me my engine air filter needed to be replaced, so I paid for that. The very next day, the same thing happened. I took my car to Honda on 06/09/2025, and they had it for roughly 90 days. In September, I was told that I had a cracked head gasket and my turbocharger was bad. I was quoted $7640.35 to fix this issue. I then began to do research and noticed there was a Facebook group called 2018-2022 Honda Accord - blown head gasket, where many people were having the same issue with their car. Ultimately, it cost $7100 to get my vehicle fixed. I don-??t believe it-??s a coincidence that so many people, living completely different lives, are having the same issue with their 2018-2022 Honda vehicle. This needs to be investigated.

- Fort Smith, AR, USA

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.

- Lagrange, GA, USA

My vehicle-??s fuel delivery system failed after a recall repair. The in-tank fuel pump was replaced under recall by the dealer, even though I had no drivability complaints, no warning lights, and a full inspection that day confirmed no issues with my vehicle. Immediately after the recall pump replacement, the vehicle developed drivability problems including sputtering, hesitation, and failure to start.On one occasion, the underside of the car overheated and exhaust fumes, including carbon monoxide, entered the cabin. The interior filled with heat and fumes, I became lightheaded, dizzy, and shaky, and nearly lost consciousness while driving. My dog, who was with me, vomited and panted heavily from the exposure. I had to pull over and exit the vehicle immediately. This incident occurred only after the recall pump was replaced and points to faulty installation or malfunction of the recall component, which disrupted the fuel system and caused improper combustion and exhaust handling. On another occasion, the vehicle stalled in the middle of an intersection, leaving me at serious risk of being hit by cross traffic. The car now shows a high-pressure fuel pump fault. Although the in-tank pump and the high-pressure pump are in different locations, they are part of the same system: the in-tank pump supplies steady fuel volume and pressure directly to the high-pressure pump. If the in-tank pump is defective, mis-installed, or inconsistent, it causes the high-pressure pump to fail. This made my vehicle unsafe to operate, placing me, my passengers, and other drivers at risk. The problem has been confirmed by the dealership, which documented a high-pressure fuel pump fault, and reviewed by Honda Corporate. Components and service records are available for inspection. There were no warning lamps, messages, or drivability issues prior to the recall service, all symptoms appeared immediately afterward.

- Baldwinsville, NY, USA

The contact owns a 2019 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights were illuminated. Additionally, the contact stated that the failure had occurred several times. The vehicle was taken to the dealer where it was diagnosed with coolant intrusion and engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was taken to an independent mechanic for a second opinion and price comparison. The manufacturer was not made aware of the failure. The failure mileage was approximately 104,000.

- Baker, LA, USA

I bought this car used in August 2022. September 2022, I paid for diagnostics because every warning light was on. They returned the car and the warning lights were clear. They eventually reappeared. I called, complained and was told I would need to pay for another diagnostic. This has been an ongoing problem. The lights are: Collision Mitigation, braking system problem. TPMS system problem, check tire pressure. Brake System problem, brake performance may be reduced. Brake system, brake hold system problem, apply brake when stopped. Electric power steering system problem, steering assist reduced. Vehicle stability assist system problem, reduced traction and handling. Hill start assist problem, vehicle may roll upon brake release. ACC, adaptive cruise control system problem. Road departure mitigation system problem. Emission system problem, avoid heavy acceleration and high speed. When the battery is disconnected for 15 minutes, then reconnected the lights clear, only to reappear within a few miles of driving. This is very concerning. My teenager will be driving soon and this is an unacceptable safety issue.

- Selma, Ca, CA, USA