3,431 of the
32,167 complaints filed about the Honda Accord
are about the engine —
100% of everything owners reported.
The worst model year for it is 2018.
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.
NHTSA complaint #11764229 — an unverified report by a vehicle owner.
1>Engine failure: Around the time vehicle reached 148,000 miles on it, it blew a head gasket on cylinder 2. Coolant was in the cylinders. The vehicle would not accelerate and was misfiring. 2> Safety was affected as this occured on interstate 40 and caused the vehicle to slow to an unsafe speed. 3>Problem was confirmed by Morganton Honda- Morganton NC. 4> Check engine light.
NHTSA complaint #11763581 — an unverified report by a vehicle owner.
The vehicle keeps going into limp mode and misfire on cylinder 2 and 3 and all dashboard lights are coming on. I had my spark plugs changed and my coils
NHTSA complaint #11763554 — an unverified report by a vehicle owner.
The engine continues to overheat and shut down while driving. The engine often goes into "limp" mode while driving. The entire set of gauges and lights on the dashboard light up like a Christmas tree, alerting me that all systems in the car are malfunctioning. I fear that I may have a malfunctioning head gasket. I've replace injectors, radar sensors, new turbo, gas pedal, etc and I have spent nearly $10,000 dollars and MANY, many hours at multiple Honda dealers, across various different states. This car is a lemon and I am upside down on the value of the car and what I still have financed. I wish Honda would take responsibility for their new turbo driven CVT engines that are failing.
NHTSA complaint #11763349 — an unverified report by a vehicle owner.
Unknown of actual issue. Experiencing persistent hard excessive jerking when accelerating. Extended warranty was placed for most Hondas due to head gasket issue but not for 2.0T
NHTSA complaint #11763250 — an unverified report by a vehicle owner.
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)
NHTSA complaint #11762956 — an unverified report by a vehicle owner.
ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS
The contact's sister-in-law owns a 2018 Honda Accord. The contact stated that while driving the vehicle, the vehicle stalled with several warning lights illuminated. The driver pulled over to the side of the road, and the vehicle failed to restart immediately. The vehicle was restarted after a while. The driver continued driving, but the failure reoccurred. The vehicle was taken to a dealer, where it was diagnosed and determined that the cylinder head gasket, gasket kit, and coolant needed to be replaced. The failure mileage was approximately 132,000.
NHTSA complaint #11762778 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11762358 — an unverified report by a vehicle owner.
It started with multiple lights glowing on my dash. Then progressively the car felt sluggish and ultimately while driving to church in July the car cut off while I was making a turn. Some kind gentleman pushed my car helping me get out the intersection.
NHTSA complaint #11762233 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11762275 — an unverified report by a vehicle owner.
I own a 2018 Honda Accord Sport 2.0T that has been consistently maintained through authorized Honda dealerships. On July 30, 2026, at 135,968 miles, I took my vehicle to Nalley Honda for a Blind Spot Information System warning and maintenance. The dealership performed a multi-point inspection and documented the spark plugs, cooling-system hoses, and fluid leaks as PASSING. I authorized approximately $1,231 in repairs and maintenance. Only days and approximately 202 miles later, multiple warning lights appeared. I returned to the same dealership. At 136,170 miles, Honda documented DTC P0302 (Cylinder #2 Misfire). The injectors passed an air-fuel test. The technician then noted pressure releasing from the cooling system despite low coolant temperature. A head-gasket leak test was performed and FAILED. Honda diagnosed a blown cylinder head gasket and recommended approximately $4,906 in repairs, including spark plugs that had passed inspection only days earlier. I am concerned about the sudden failure of a major engine component in a well-maintained vehicle, particularly so soon after a Honda dealership inspection. I have learned that other Honda Accord 2.0T owners have reported premature head-gasket failures. A failed head gasket can result in misfires, coolant loss, overheating, reduced engine performance, and potential engine damage while driving. I am requesting that NHTSA review this complaint along with similar complaints involving Honda Accord 2.0T head-gasket failures to determine whether a defect trend exists and whether an investigation is warranted.
NHTSA complaint #11761480 — an unverified report by a vehicle owner.
2019 honda accord, the transmission is failing, Slipping Gears, Delayed or Harsh Shifting, Unusual Noises, Warning Lights on, Transmission or check engine light illuminate, signaling potential issues, Fluid Leaks I have a 2019 honda accord, the fuel pump failed and the honda service center in miami charged me $1308.00 and it was supposed to be a free recall. I need help, the car is falling apart. Thanks
NHTSA complaint #11761783 — an unverified report by a vehicle owner.
Car went into limp mode and was struggling to accelerate, went and got it diagnosed and was notified that my spark plugs needed to be replaced. Car began running fine but a few months went by and the issue came back. I was told I needed my spark plugs changed again. After the third time, I went and had my car diagnosed again and was told I needed a battery for the car because it was drained. Then I got the Turbo replaced and still the issue remains. All lights on the dashboard are on, car overheats and goes into limp mode, sometimes not accelerating over 20 MPH. My car went into limp mode on the highway, this scared me, so I haven't drove it since. Ive seen countless comments of users with the same make and model, experiencing the same issue. Its sad that Honda, known to be a trustworthy and reliable brand for years would do their customers like this, especially considering the state of the economy at the moment.
NHTSA complaint #11761198 — an unverified report by a vehicle owner.
There is a hole in the engine block and it happed while I was driving, people could’ve been hurt on the road because of this mechanical failure. Vehicle has only been inspected by a private mechanic who found the problem. There was no warning of this besides a add air to tire warning.
NHTSA complaint #11761461 — an unverified report by a vehicle owner.
ALL THE SAFETY DASHBOARD LIGHTS ARE ON, WHAT IS THE PROBLEM? I NEED THIS SITUATION TO BE FIXED ASAP, IT DOESNT EVEN LET ME DRIVE, IT LOSES POWER AND THE BATTERY IS BRAND NEW.
NHTSA complaint #11761191 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11760493 — an unverified report by a vehicle owner.
I purchased my 2018 Honda Accord Sport from CarMax on January 16, 2026, and I have had several serious problems with the vehicle since purchasing it. Every warning light on the dashboard has come on, my radar system will not stay calibrated, and I have been told that my fuel injectors need to be replaced. In addition, the relay module was already broken when I received the vehicle, which causes the interior lights in my car not to work properly. These issues have caused serious concerns about my safety and the safety of others because I cannot depend on the vehicle’s safety systems or know when another component may fail. The vehicle and affected components are available for inspection upon request. I have attempted to get these problems addressed, but I have not been able to get a satisfactory resolution. The issues have been identified/diagnosed, and I am seeking further inspection to determine the full extent of the problems. I have not had the vehicle inspected by the police or an insurance representative, but I am trying to get the manufacturer/dealer involved so these issues can be properly documented and addressed. I am especially concerned because I have only had this vehicle since January 16, 2026, and I have already put a significant amount of money into it while still owing a substantial amount on the loan. I was also informed that the vehicle could potentially be considered a total loss within the next couple of months. I do not believe it is reasonable for me to be left responsible for a vehicle that I recently purchased from CarMax and that has developed or revealed so many serious problems. I am requesting assistance in determining whether these issues can be properly repaired, whether the vehicle is safe and reliable to drive, and what options are available to me for a resolution given the amount of money I have already invested and the remaining balance on my vehicle loan.
NHTSA complaint #11760217 — an unverified report by a vehicle owner.