Engine And Engine Cooling Problems of Honda Accord - part 1

Vehicle: 2022 Honda Accord hybrid sport (VIN: [xxx]) dealer: rauli auto import llc (paterson, NJ, license [xxx]) odometer at sale: 141,836 miles description of severe safety defect and resulting accident: on October 16, 2026, this 2022 Honda Accord hybrid was purchased from a used car dealership. The vehicle was delivered to the consumer with severe, pre-existing, and undisclosed braking system defects that made the vehicle an immediate safety hazard on public roads. On [xxx], just days after taking delivery, the vehicle was brought to an independent, licensed mechanic (mega auto diagnostic inc. , invoice [xxx]) due to severe handling and braking concerns. Following a certified inspection, the licensed technician officially documented catastrophic pre-existing safety failures on the vehicle. The mechanic certified that the vehicle had an active engine leak, completely failed front brakes, and completely worn-down rear brakes and rotors. The dealership sold the vehicle in a hazardous condition without performing mandatory safety inspections. Days after the mechanic's diagnosis, while attempting to park the vehicle, the pre-existing braking system failure caused a complete braking malfunction. The brakes did not respond as intended to slow down the vehicle, causing the driver to lose stopping control and collide with another parked vehicle. Furthermore, the dealership provided completely incorrect, mismatched insurance policy paperwork at the time of sale. When the consumer contacted the insurance provider to process the accident, the insurer flagged a profile error due to the mismatched data entered by the dealer, leaving the driver completely exposed at the moment of the mechanical failure and collision. The dealership has reacted with hostility, verbally insulted the consumer, and refused to accept the surrender of this dangerously defective vehicle or unwind the sales contract information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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The contact owns a 2018 Honda Accord. The contact stated that while driving at 40 mph, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The rpm was elevated above 2,000 rpm, but the engine shuddered, and the vehicle lost motive power. The dealer was contacted and made aware of the failure. The vehicle was taken to the dealer, where it was diagnosed with a blown head gasket. The contact was informed that there was a misfire in cylinders #2 and #3. The contact was informed that there was coolant mixed into the engine oil. In addition, the contact was informed that the head gasket and the engine needed further diagnostic tests. The contact stated that the failure was a known failure with the vehicle. The manufacturer was contacted and made aware of the failure. The failure mileage was approximately 104,000.

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Fuel injectors went totally bad at 93,000 miles on a car that has been very well taken care of and serviced several times a year. Daily driver, no speeding or stunting or anything like that. Got into car and fuel injectors went bad and couldnt accelarate at all, all of the sudden. Couldve been very dangerous. This is a larger issue and there should be a recall. Heard about this problem, extremely disappointed.

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Electrical problems that causes damages to the engine and problems with acceleration.

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On October 12, 2026, my 2024 Honda Accord sport-l hybrid experienced a serious and potentially dangerous loss of propulsion while driving. Without warning, multiple warning lights and system malfunction messages appeared simultaneously on the dashboard. The vehicle then switched to electric-only (ev) operation, and the gasoline engine was no longer providing propulsion. I continued operating the vehicle using the remaining hybrid battery charge. As the battery charge decreased from approximately 1–2 bars to empty, the vehicle lost its ability to propel itself and eventually came to a rolling stop. After stopping, I turned the vehicle off and restarted it. The vehicle subsequently resumed normal operation, and most of the warning lights disappeared. However, the emissions system warning remained illuminated. After researching this incident, I discovered NHTSA safety recall 25v785000 (Honda recall tn2), which affects certain 2023–2025 Honda Accord hybrid vehicles. According to the recall, a software error involving the integrated control module (icm) may cause the system to reset while driving, resulting in a loss of drive power. The symptoms described in this recall closely resemble what I experienced. However, when I contacted Honda, I was informed that this recall had already been completed on my vehicle. I am extremely concerned that my vehicle experienced a loss of propulsion despite Honda reporting that the applicable safety recall remedy had already been performed. This incident presents a significant safety risk, particularly if a similar failure occurs while traveling at highway speeds, navigating an intersection, or driving in heavy traffic. I am requesting that NHTSA investigate whether the existing recall remedy adequately addresses this potential safety defect, whether the software update was properly implemented, and whether other Honda Accord hybrid owners have experienced similar failures after recall completion.

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A mechanic inspected or evaluated the vehicle and told me that the small fuel filter/strainer inside the fuel pump assembly may be causing the problem. The vehicle has intermittent starting difficulties, rough engine operation, and sudden loss of engine power while driving. The accelerator sometimes becomes unresponsive until I pull over, turn off the engine, and restart the vehicle. I am concerned about a possible fuel delivery system malfunction and the risk of losing power unexpectedly while driving. I am requesting an investigation into the fuel pump assembly and its internal filter.

See all problems of the 2020 Honda Accord 🔎.

The contact owns a 2020 Honda Accord. The contact stated that after coming to a stop, the vehicle experienced a loss of motive power, accompanied by multiple warning lights illuminating on the instrument cluster and an abnormal coolant odor entering the cabin. The vehicle was towed to an independent mechanic, where an inspection determined that the head gasket failed. The vehicle was towed to the dealer, where diagnostic testing determined that the engine and head gasket required replacement. The dealer informed the contact that coolant leaked into the engine, causing damage to the timing chain guides and timing chain tensioner. The manufacturer was notified of the failure. The contact associated the failure with technical service bulletin: 26-003. The failure mileage was 112,000.

The car hesitates upon acceleration and when it “misses” enough it will flash the engine on the dashboard, and not allow any further acceleration, going into “limp mode”. All the safety controls error on the message center and dashboard warnings all come on, even though it’s only the acceleration/transmission that’s affected. Not sure if it’s fuel injectors or a computer issue, but it’s absolutely dangerous upon entering a highway and hoping to not have system failures, that result in limp mode. I’ve been carrying a 10 mm socket for disconnecting the battery and rebooting the system, when needed. It only helps for a short while.

Noticed that the engine temperature was slightly higher normal (went to 5 bars when always at 4) I checked and the fan was running properly and had coolant in the overflow tank. I took it to the Honda dealer, and they found that the head gasket failed and the fluid inside the radiator leaked into the cylinders. My 2018 Honda has the 2. 0t engine with 126,875 miles. Honda acknowledges this design flaw on their 1. 5t and 2. 0 non-turbo engines but wouldn't cover my 2. 0t. This 2. 0t from my research is about 80-100 units of the 1,115,384 Accords sold in the us 2018-2022 10th gen. The 2. 0t has the same design flaw as the other two engines but Honda wont cover them. Moreover, I asked for 50% good will coverage from Honda and was flat out told no after waiting for 4 weeks to get this decision on a known mechanical engine flaw that could be a safety issue, eg. Fire or loss of power on a highway that can get someone hurt or killed.

My 2018 Honda Accord ex-l with the 2. 0l turbocharged engine (k20c4) and 10-speed automatic has had a cylinder head gasket failure at approximately 111,000 miles. The vehicle has been maintained consistently. Starting in early October 2026, the vehicle began shaking violently under acceleration while the engine was cold, including when accelerating at highway speed and climbing hills. The shaking lasted for roughly the first 15 minutes of every drive. No check engine light or diagnostic trouble codes appeared. In mid-October 2026, a Honda dealership diagnosed coolant leaking past the cylinder head gasket into the combustion chamber and quoted approximately $5,000 for the repair. Replacement parts are on backorder with no estimated arrival date. Violent shaking during highway acceleration is a safety concern, and continued coolant leakage into the cylinders can cause further engine damage. In August 2026, american Honda extended head gasket warranty coverage to 10 years or 150,000 miles on 2018–2022 Accord 1. 5t and hybrid models for the same condition: coolant entering the combustion chamber and causing misfires. The 2. 0l turbo engine was excluded. A pending class action (alcantara et al. V. American Honda, consolidated with bissell v. American Honda, s. D. Cal. ) alleges head gasket failure in Honda's 1. 5l and 2. 0l turbocharged engines. I ask that NHTSA investigate head gasket failures in 2018–2022 Accords with the 2. 0l turbo engine, and whether this engine should be included in Honda's remedy.

My 2018 Honda Accord sedan was overheating, and all the dashboard warning lights came on. The vehicle’s odometer reading was 162,924 miles. I took the vehicle to a Honda dealership on October 16, 2026, for diagnosis, and it was diagnosed with a blown head gasket. The vehicle was purchased brand new from a Honda dealership. I requested assistance from Honda with the repair, including goodwill assistance, but Honda declined to provide any assistance.

Unknown. I was informed that my fuel pump is faulty and as a result my engine needs to be replaced.

On 09/18/2026, at 103,000 miles, my vehicle suffered a dangerous powertrain failure where numerous dashboard warning lights illuminated and the car suddenly dropped into "limp mode" with an immediate loss of acceleration while in active traffic. I took the vehicle to a certified Honda dealership, where technicians officially diagnosed the issue as a "fuel system too rich" condition (diagnostic trouble code p0172). The dealership confirmed that the factory-installed direct fuel injectors are failing prematurely and leaking raw fuel into the engine cylinders. This manufacturing defect causes severe engine oil dilution, where gasoline contaminates the oil pan, creating an immediate stalling hazard and an extreme risk of a high-speed rear-end collision. Online owner forums and dedicated global social media groups indicate that thousands of other 10th-generation Accord owners are experiencing this identical safety defect. Honda corporate has formally denied goodwill assistance, treating this severe engineering flaw as standard wear and tear. The vehicle and failed components are fully available for inspection upon federal request.

I am not sure what component failed. My lights on my dash will not go off. I have done everything I was told to do, ever down to a new battery. & they will not go off. My car will not go over a certain speed. Before this, there were no problems. No warning lights & it was driving perfectly fine. Please help. When I researched this issue, I noticed a million others having the same problem. There has to be a recall on these Honda’s. Let alone, just a simple answer as to why this is happening.

Hearing a tapping sound from engine. Misfire codes 2,3,4 engine temperature at limit warning. Driver and passenger seats malfunctioning vsa module malfunctioning.

While driving, the car’s engine suddenly shut off, and the brakes were barely responsive, making it extremely difficult to bring the vehicle to a complete stop despite continuously applying the brakes. This was a very serious and frightening safety issue that nearly caused me to crash into another vehicle or an object. I am very concerned about the safety and reliability of this vehicle and believe it needs to be inspected immediately.

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The contact owns a 2020 Honda Accord. The contact stated that while driving 45 mph, the vehicle was jerking abnormally. The brake system, tpms, power steering, and check engine warning lights were illuminated. The message “reduce speed” was displayed with an audible beeping alert. The dealer was contacted. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 111,309.

The contact owns a 2019 Honda Accord. The contact stated that while driving at an undisclosed speed, the “service engine” warning light illuminated and the vehicle was hesitating and shaking abnormally. The contact used a diagnostic scanner to retrieve dtc for engine misfire in cylinders #2 and #3. The manufacturer was notified of the failure. The vehicle was taken to a dealer where it was diagnosed with coolant intrusion into the cylinders caused by the cylinder head gasket failure. The vehicle was repaired. The failure mileage was 77,689.

I’m having the same mechanical issues as everybody else all dashboard lights on and doesn’t even let me drive the vehicle. It gets stuck.

I am reporting a recurring safety and mechanical issue with my 2018 Honda Accord 1. 5t, which currently has approximately 128,900 miles. My vehicle has been experiencing shaking/rough operation and multiple warning lights while driving. Diagnostic scans have shown p0301 – cylinder 1 misfire and u0401-68. The ignition coils were replaced with original/oem parts in an attempt to correct the issue. After the repair, the warning lights went away temporarily, but within several days the same warning lights and symptoms returned, and the vehicle again showed the p0301 cylinder 1 misfire code. I am concerned because the vehicle continues to shake and operate abnormally despite the repair. I have learned that Honda has addressed cylinder-head-gasket concerns involving certain 1. 5l turbocharged Accord vehicles, which may cause engine misfires. However, I have not had my vehicle diagnosed with a defective head gasket, so I am not claiming that this is definitely the cause of my vehicle's problem. When I checked my VIN through NHTSA, it showed 0 unrepaired recalls. I am submitting this complaint so that NHTSA has a record of the recurring problem and can determine whether my vehicle's condition may be related to a broader safety defect affecting 2018 Honda Accord 1. 5t vehicles. I am concerned about the possibility of the continued misfire causing loss of engine performance, loss of power, stalling, or otherwise making the vehicle unsafe to operate if the underlying problem worsens. I have photographs of the diagnostic scans documenting the codes and records showing the previous repair.

When I go to start the vehicle, it takes multiple seconds to actually start. It continues to turn over and over before finally starting up. This happens 3-4 times a day depending on how often I drive. This also creates a bad gas fume, fuel smell. This doesn't seem like something that a 2024 Honda should experience. I am a new owner to the car and have not taken it to a certified Honda dealership. It was purchased used from a non-Honda dealership. I did reach out to the local Honda dealership though, asking if this is normal for the car to act like this. I am awaiting a response.

The contact owns a 2018 Honda Accord. The contact stated that on several occasions while driving, the vehicle lost automotive power with several unknown warning lights illuminated. The vehicle was taken to an independent mechanic where it was diagnosed, and the contact was informed that the head gasket was allowing coolant to leak into the cylinders which caused the vehicle to lose automotive power. The contact was informed that the head gasket needed to be replaced. The manufacturer was not notified of the failure. The failure mileage was 150,000.

Car was overheating while driving. Received warning signs on the dash to pull over and turn car off immediately. Which I did. Very dangerous to do, especially with my three year old on a 90° summer day. I felt fear for my life while waiting on the side of a busy road during rush hour for the engine to cool and figure out what to do. Here the head gasket blew. A defect in the engine that Honda knows about. As a matter of fact, they have lawsuits for this exact occurrence.

Vehicle dashboard lights up with multiple warnings, power loss/limp mode in traffic and while driving. Dealership said it’s a very common problem but Honda refuses to make a recall. Technician says it is most likely caused by faulty fuel pump which is already recall that caused damage to the injectors.

This has actually been a problem since I first got the car in 2015 but probably started happening in 2016. But it happens so intermittently that I hardly thought about it or figured it just needed a new battery. But I changed the battery and it is still happening where the car won't start. I have to push the button repeatedly or put the car in n to get it to start. Eventually it works but I'm worried about an electrical issue causing a fire. When it doesn't start all the lights on the dashboard light up. I keep trying and eventually it works. As I said, I'm afraid it will cause a fire. I called Honda and they said some cars were recalled for starter issues but not my VIN number. Seems like if other Hondas had issues mine would too.

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Subject: a request for Honda corporate investigation and goodwill assistance - 2021 Honda Accord I am submitting a formal complaint regarding serious and recurring electrical and safety-related problems with my 2021 Honda Accord. 1. Numerous dashboard warning lights and safety-system warnings illuminate simultaneously. 2. The vehicle repeatedly displays messages instructing me to "see dealer. " 3. The power door locks repeatedly click and cycle as though they are attempting to lock or unlock on their own. 4. The stereo, on its own, scrolls through buttons and bluetooth blinking through all the stereo options on its own. 5. An obd diagnostic code reader is unable to properly communicate with the vehicle and reports "unable to connect/vehicle not found. " 6. Sudden brake activated without any object being in front of the vehicle. 7. Factory rims extensive finish failure the simultaneous occurrence of these problems strongly suggest that this may involve an electrical, communication-network, body control module, wiring, power-supply, or other vehicle system defect rather than ordinary wear and tear. I am particularly concerned because the dashboard warnings involve vehicle systems that may affect braking, steering, stability control, driver-assistance features, and other safety functions. When numerous safety warnings illuminate at the same time, I have no reliable way of knowing which vehicle systems are actually functioning correctly. The repeated activation of the door-lock system is also concerning. The locks should not continuously activate on their own during normal vehicle operation. Combined with the diagnostic communication failure and multiple warning messages, this raises concern regarding a larger electrical or vehicle-network malfunction. Although the vehicle is currently outside the factory warranty period, this type of widespread electrical and safety malfunction should not reasonably occur in a 2021 vehicle as the result of normal use.

Head gasket needs replacement - known issue with Honda Accord 2019 1. 5t and open class action lawsuit is in progress.

While driving on a bridge at under 20 mph, the vehicle's head gasket failed, causing the engine to overheat and coolant to leak from within the engine. The vehicle threw diagnostic trouble code p2601 and immediately entered "limp mode," severely cutting engine power and vehicle speed. Because this happened on a bridge with no shoulder to safely pull over, the sudden loss of power created a serious safety hazard — the vehicle could not maintain a safe speed or keep pace with surrounding traffic, increasing the risk of being struck by other vehicles. The vehicle was taken to a tampa Honda (11000 n florida Ave), where the failure was confirmed to be a blown head gasket that allowed coolant to leak into the engine cylinders. The head gasket and related components were replaced at a cost of approximately $5,000 to restore the vehicle to safe operating condition. The failed component is no longer available for inspection in its failed state, as replacement was required to make the vehicle drivable. No dealer, manufacturer representative, police officer, or insurance adjuster has inspected the vehicle; only at tampa Honda facility that performed the repair diagnosed and confirmed the head gasket failure. Prior to this incident, no warning lamps or symptoms were noted — the p2601 code and limp mode activation occurred simultaneously with the sudden overheating and coolant loss, with no advance warning. This failure is consistent with a widely reported defect pattern among Honda vehicles with similar engines, where the head gasket fails prematurely and allows coolant to enter the cylinders. Honda has not issued a recall or acknowledged a manufacturing defect despite numerous consumer reports describing the same failure mode.

The contact owns a 2020 Honda Accord. The contact stated that while driving on several occasions at various speeds, the messages "emissions system failure," "electric power steering failure," "hill start assistant failure," "collision mitigation," "collision road departure," "tpms failure," "brake system failure”, “brake performance reduced", "vehicle stability assistance failure," "adaptive cruise control failure", "road departure mitigation failure," and "brake hold system failure" were displayed. The contact stated that the check engine, tpms, brake system, traction control, and power steering warning lights were illuminated. The vehicle was taken to a dealer where it was diagnosed that the head gasket and turbocharger needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

The car was rough upon idle one day and all the lights came on and systems went down I was bout to drive to a place where the code was read that’s when I first discovered this was a known issue which this model. Head gaket.

Engine making noise when start, took to dealer, it was diagnose with head gasket gone. All services done from dealer since purchased and now dealer is saying gasket replacement.

I'm in [xxx] and just bought this 2019 Honda Accord unaware all Hondas 2018-2022 are lemon specially Accord turbo 1. 5 I was fully scammed. [xxx] rains everyday, so every time the car gets wet all safety warning lights, all sensor lights turn on and the vehicle stalls leaving me in the middle of the street and unable to drive. This situation start happening since they updated adas sw pud software sensors on xxx also replaced fuel pump that failed, I replaced the battery and still the same, some people say its an electrical problem others say its the turbo charger others say its the abs module others say its the front radar that need to be cleaned others say its the fuel injectors others say its the head gasket others say connectors get wet. I'm suffering from anxiety and depression because of this, and unable to afford al these expenses, I'm asking for Honda to fix tall this mess and compensation for my emotional distress. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2021 Honda Accord. The contact stated that while driving approximately 30 mph, the message "emission system problem" was displayed. The vehicle was taken to the dealer, where it was diagnosed and determined that the turbocharger had failed and needed to be replaced. The contact was informed that the failure was a common issue. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 108,579.

The head gasket is leaking coolant into cylinder #2. The car has misfired and has not been operable. The problem has been confirmed and diagnosed through the dealer. There were no prior warning lights to the issue until the car completely became inoperable from one day to the next.

Emission system.