general problems of the 2018 Honda Accord - part 1

The engine stalled on the freeway. Has been having rough idles on cold start. Water gurgling/sloshing sounds coming from behind the dash on cold start. White, sweet smelling smoke periodically comes from the exhaust. Followed up with spark plug replacements. The vehicle still has all previous issues. Upon further inspection coolant reservoir is empty indicated a leak. No leaking fluid has been found. Suggests internal leaking. Issue is likely failing head gasket issue. Bissel v. American Honda CO. Has been suing over this issue. The head gasket is allowing coolant into the cylinders mixing with fuel causing misfires and stalling the engine. Extremely dangerous. Likely to cause accidents.

My car is having issues with the head gasket. My car check engine lights came on like a lit christmas tree with many warnings (emission system, brake system, departure, uphill and many other more). I took my car into capital Honda for a diagnostic on 5/4/26 and they informed that it was the head gasket that needs to be replaced. They are charging me $6000 to repair and do not have the funds to fix. Also I contacted Honda corporate since I read on google that I may qualify for the goodwill program and they said I didn’t qualify since I did not purchase warranty on the vehicle when I got it. I also do see that there is a lawsuit in place for this. I’ve kept up with my car maintenance and never had an issue till now. The car is running rough and it’s shaking a lot. It’s also loosing coolant from the reservoir.

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 April 2026 (3) times. May 2 times 2026.

I have a Honda Accord sport 2018 engine 1. 5l turbo(1. 5t) mileage- 97,776 I am reporting a suspected premature head gasket failure which is affecting my vehicle and my mechanic told me this has been going on for a while now with the Accords around my year model. On cold starts, the engine shakes and idles roughly for about 10-20sec. There has been some jerking during acceleration and prior stalling incidents. I have also experienced a blinking check engine light which indicates an active misfire condition. The vehicle has been maintained regularly and have proof upon request. The anti-freeze is leaking inside the cylinder 2 and 3 which is causing the misfires. The check engine light which is blinking is causing safety concern due to potential power loss and the risk of stalling while driving. This issue appears to be widespread among vehicles equipped with the 1. 5t but also around the years of my vehicle. Honda dealership brought it to my attention during the last recall, and my personal mechanic (independent service) diagnosed my car and mention the same thing. I believe this is a manufacturing or design defect and request that NHTSA investigate this issue for potential recall or required manufacturer remedy.

The head gaskets and turbo supercharger goes out at a certain amount of miles.

I am writing to formally report a recurring and serious mechanical issue involving the head gasket in the 2018 Honda Accord equipped with the 1. 5l turbocharged engine. This issue appears to be widespread and poses both safety and financial concerns for vehicle owners. In my experience, the vehicle began exhibiting symptoms consistent with head gasket failure at relatively low mileage. These symptoms included unexplained coolant loss, engine overheating, white exhaust smoke, rough engine performance, and in some cases misfires. Upon inspection and diagnosis, the root cause was identified as a failed or failing head gasket. This failure is particularly concerning because it occurs prematurely and without warning, despite regular maintenance and responsible vehicle use. A head gasket is a critical engine component, and such failures can lead to severe engine damage, sudden loss of power, and unsafe driving conditions—especially if overheating occurs while the vehicle is in motion. Additionally, the cost of repair is substantial, often ranging from several thousand dollars, placing an unexpected financial burden on owners. Many drivers, including myself, rely on these vehicles for daily transportation, and this defect undermines the reliability that is expected from a modern vehicle. There is growing evidence through consumer reports, online forums, and mechanic feedback that this is not an isolated incident but rather a pattern affecting multiple 2018 Honda Accord 1. 5l vehicles. The consistency of these reports suggests a potential design or manufacturing defect related to the engine or head gasket system. Given the safety implications and frequency of occurrence, I respectfully request that the NHTSA investigate this issue further to determine whether a recall or manufacturer accountability action is warranted. Addressing this defect would help prevent further financial hardship and reduce the risk of unsafe driving conditions for affected vehicle owners.

Blown head gasket. This appears to be a widespread issue amongst all 10th gen Honda Accords due to a poorly designed engine by Honda.

1) the cylinder head gasket was “blown” and leaking coolant into cylinder 2. 2) as I was merging into traffic, my vehicle suddenly lost power and entered limp mode and the check engine light began flashing. 3) yes, serviced at the dealer and confirmed 4) inspected by dealer 5) no.

While driving at highway speeds, the vehicle experienced a sudden jerking and a catastrophic loss of motive power (limp mode). Simultaneously, multiple safety systems failed, including the collision mitigation braking system (cmbs), adaptive cruise control, and road departure mitigation. The vehicle became a road hazard in active traffic. A certified Honda dealership technician inspected the vehicle and confirmed a premature head gasket failure with coolant intrusion into cylinders 2 and 3. The engine is non-drivable and the vehicle is at 84,000 miles. Despite the documented nature of this design defect and its current litigation, american Honda motor CO. Has denied any assistance. The vehicle also has an open safety recall (24-009) for a fuel pump failure which presents identical safety symptoms.

I own a 2018 Honda Accord ex-l with a 1. 5l turbocharged engine. The vehicle began overheating while idling and at low speeds, cooling down when driving at higher speeds. I brought the vehicle to a Honda dealership where a pressure test confirmed internal coolant loss with no external leaks found. The dealership diagnosed a head gasket failure and recommended replacement at a cost of $8,941. The component that failed is the head gasket on the 1. 5l turbocharged engine, allowing coolant to leak internally into the cylinder. My safety was put at risk as the vehicle overheated while in traffic during normal driving conditions, creating a risk of engine failure, loss of power, and potential fire. The problem was confirmed by a certified Honda dealership via cooling system pressure test. A goodwill request has been submitted to american Honda on my behalf. Warning lights appeared on the dashboard twice indicating to turn the vehicle off immediately due to overheating. Symptoms first appeared in April 2026. I am aware of NHTSA TSB mc-10234626-0001 and an active class action lawsuit bissell v. American Honda motor CO. Case no. 3:24-cv-02286 addressing this exact defect on this exact engine.

Driving in a construction zone. Two lane highway and my car immediately went into limp mode. Left me and my children stranded on the side of the road while semis and cars driving 65 mph went past very close to us. Honda knows these Accords have head gasket issues and it is unsafe to be driving them.

The vehicle began to overheat while traveling at fair speeds (35mph) on state road. Thermostat reading increased to h and vehicle note read “vehicle overheating” please park car. Car temperature read over 104 degrees fahrenheit. No check engine light present. Vehicle was parked and turned off to cool.

Head gasket failure, over heated randomly putting myself and kids unsafe and at risk for accident. Been confirmed by independent service center. Not inspected by police or insurance. Had cylinder misfire a week prior.

The dashboard on the vehicle lights up with multiple error notifications. This puts the vehicle in limp mode. Indicates emissions errors, check engine, lane mitigation, brakes, control system. Per different customers this fault is being caused by either faulty fuel injector, miss fire, bad ignition coils, damage head gaskets, or turbo mechanism faulty. My vehicle has 70,000 miles and others in the chat have less miles that are having similar problems. Head gaskets should not fail so soon with proper maintenance. My obd2 scan code is miss fire which could indicate faulty spark plugs, coil, injector or headgasket. For a vehicle at 70,000 miles this shouldn't happen. Vehicle has been maintained as the manufacturer recommendations.

First I had to replace all injectors and now I have a cylinder 4 misfire and need a head gasket job that’s being quoted at $5000!!! I’ve done all maintenance and upkeep and my car looks new. I’m in Honda groups and this is happening to everyone with the 10th generation Accord that’s 1. 5t engine. This should be a recall! I thought Hondas were the best. This is ridiculous and the car has no life. It’s literally in limp mode.

Pulling out in front of high speed traffic, engine went into safe mode with check engine light. Fortunately a car at high speed avoided rear ending my car. Upon evaluation, dtc code p0303 (cylinder 3 - misfire) was present. Coils and spark plugs were changed but car was still misfiring. Honda has a warranty for 150k/ 10 year on fuel injectors but this VIN was not on list based on Honda service department. The Honda service department evaluated and car has head gasket leak in cylinder 3. This is a widely known problem reported on many Honda owner websites and Honda service acknowledged it was an issue but is not a “recall” despite the potential safety risk on the road when car goes in to protect / shutdown mode. The nature of this issue occurring on a well maintained car with 147k miles that is 8 years old and not being a recall and a safety related item is being reported by me as me and my family could have been impacted by a rear end collision as car shut down / protect mode. This could and likely has occurred to other owners and possibly attributed to accidents and safety of passengers. Honda wants over $11k to repair the car which includes fuel injectors / plugs / coils / new head as they reflect old head can’t be used even if machined / head gasket. This issue is a safety related issue and should be a Honda recall as the head bolts are a known design issue causing premature failure of the head gasket. Submitting this to document my incident, protect the public driving this model and year and hopefully providing information to warrant a recall so that all repairs will be performed under recall warranty. Also to protect the public from a Honda Accord safety issue for 2018 Honda Accord lx.

Blown head gasket.

In 2018 Honda Accord with the 1. 5-liter, four-cylinder turbo engine that had a head gasket fail at 110k miles which has been diagnosed and confirmed by local Honda dealer with misfire codes/counts on cylinder 1 due to coolant leaking inside cylinder 1 and 2 due to this bad head gasket. Due to the bad head gasket and coolant leaking into cylinders, this caused the fuel injectors to clog and fail. Creating rough idling and poor engine performance, which could cause car to stall at any point, creating a safety concern for those in the car if stalled/stuck on public roads. Additional discovery information found here of Honda America acknowledging the defect and encouraging dealerships to report this issue with incentives. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

We’re driving home when the vehicle suddenly had a significant reduction in power and the car would not accelerate beyond 5 mph. Honda calls it “limp mode”. I was approximately 2 to 3 miles from home. Approximately 20 vehicles swerved passed us at normal road speeds of approximately 50 mph. The only warning light that came on was a flashing “check engine” light. The vehicle towed to elk grove Honda, I initially thought it may the turbocharger because I could hear a grinding sound emitting from that area. Eg Honda diagnosed the issue as coolant leaking into the cylinder, which caused the misfire from a faulty head gasket. It is understood this faulty head gasket issue is part of a California class action lawsuit related to 2018-2022 Honda 1. 5l turbocharged vtec engines.

I was driving down a 45mph street when my car shut down, complete power failure. Dashboard lit up with all kinds of warnings. It had to be towed to the nearest shop.

I just submitted a complaint but wanted to add that after my car lost all power on a 45mph road and went into limp mode it then was towed to the closest shop. I do have a warranty but when I called Honda they said it wasn't covered the shop I took it to charged me 4100 dollars for a blown head gasket which from researching it looks like this is happening to all 2018 Honda Accords this is low mileage and unacceptable , turns out after I called and told Honda they refused to pay because I had already had the shop look for the problem so I had to pay 4100 for an issue Honda clearly knows about this is unfair and Honda needs to fix this issue.

2018–2022 Accord models with 1. 5l turbocharged engines are experiencing premature head gasket failures. Honda is facing class-action lawsuits regarding these engines, and there are known technical service bulletins (tsbs) for issues like cylinder misfires. Full injectors .

Failing head gasket - cars stalls. Coolant reservoir goes empty. Check engine light go on.

2018 Honda Accord with blown head gasket. Vehicle has a 1. 5l turbo charged engine and 100,000 miles.

The head gasket failed which caused the vehicle to stall out while driving which poses a safety threat to the driver and others due to other vehicles possibly colliding with the vehicle when stalling out. Also, this issue cause the warning light of the engine overheating, which required me to pull over while driving to prevent additional damage to the engine. The vehicle was taken to a nearby dealership for repairs that cost $3,898. 91. Upon research, this is a standard issue with this year, make, and model that Honda has refused to address through a recall.

I started driving this vehicle and all of a sudden it started slowing down, and would not go up to speed. I had it fixed, the car started skipping, making a jerking movement while driving. I made an appointment with tameron Honda of birmingham on 3/26/26. As soon as I pulled up to Honda dealership the engine light was on. The company was trying to bill me 6100 dollars for fixing the car. I do not have that amount on hand and I need my car. I had to drive my car away from the dealership while it was in idle mode state into traffic the car moved so slowly that I could have wrecked. The dealership did not do their due diligence by going off of the VIN number and making sure that the customer is safe with their brand. I was told that they did a full inspection at the dealership. I have been scared to drive this vehicle since the issue keeps happening.

The contact owns a 2018 Honda Accord. The contact stated that while driving approximately 45 mph, the vehicle stalled. There was no warning light illuminated. The vehicle was towed to a local dealer to be diagnosed. The vehicle was diagnosed, and it was determined that the head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 153,000.

As soon as I got to work and put it in park I got a message on the dashboard saying “engine temperature too hot. Do not drive. Allow engine to cool”. No other warning signs were shown before this. I looked up on google what maybe it meant and to my findings it mentioned gasket and all I noticed recent complaints and claims filed with 2018 Honda Accords for a known issue with these Honda Accord sport 2018 models for blows gaskets.

At 144000 miles all vehicle lights came on and vehicle engine would shake and vibrate. Computer said misfire on cylinder three. Changed spark plugs and coil. Problem still persisted. Mechanic recommended replacing fuel injectors so I did. After injectors were replaced all the lights came back on and the car runs worse. I believe its a blown head gasket now and the mechanic is testing the head this week.

Car was jerking when acceleration. Dealer inspected the vehicle and said the head gasket is blown. It overheated a day after Honda dealership fixed my water pump.

After recent service from local Honda dealership vehicle started to drive sluggish. Had all fluids changed and the coolant flushed when serviced at the dealership. The vehicle now displays several different alerts upon start up "emissions systems failure" brake system failure" hill assist failure" power steering failure". Vehicle was returned to dealership and it was determined the head gaskets need to be replaced due to coolant leaking. This vehicle has been maintained consistently with documentation and shouldn't have this type of failure with only 100k miles. Repairs are $4800 and this should definitely be investigated because this is common in Honda Accord model years 2018-2022.

Head gasket failed at 58k miles without overheating per assessment at Honda dealership. Safety was affected by going into limp mode instantly turning left onto 55 mph 4 lane road, no warning lights prior going into limp mode. Brief misfire occurred prior to incident, (did not know at time because it did not seem significant and no warning light). Dealer reports multiple 2018 Honda Accord 1. 5l head gasket and fuel injector failures. Unknown if manufacture would inspect. In addition fuel injector has completely failed and requires replacement per Honda dealership assessment, this occurred after dealership repaired head gasket. Waiting for final repair invoice, can and will provide upon request.

A 2018 Honda Accord suddenly displayed multiple dashboard warning messages at the same time after previously operating normally. The warnings include: emission system problem (avoid heavy acceleration), tire pressure monitoring system (tpms) problem, brake system problem, brake hold system problem, electric power steering system problem, vehicle stability assist problem, hill start assist problem, adaptive cruise control system problem, collision mitigation braking system problem, and road departure mitigation system problem. These alerts appeared simultaneously when the vehicle was started, even though the car had been driven the night before without any issues. The vehicle still starts and runs, but the number of system warnings suggests a possible electrical, sensor, or control module issue affecting multiple vehicle systems.

While driving at highway speed, the engine suddenly stalled without warning, resulting in a complete loss of power. This created a dangerous situation as I was unable to maintain speed or safely maneuver with surrounding traffic. At the time of the incident, all electrical warning lights illuminated on the dashboard simultaneously. Prior to this event, there were no clear warnings indicating imminent failure. The vehicle was later diagnosed with a failed head gasket and turbocharger issues. The sudden engine stall while in motion presents a serious safety risk, particularly at highway speeds, as it increases the likelihood of a crash due to loss of propulsion and reduced driver control. This issue appears to have occurred unexpectedly and without adequate warning.

I am submitting a claim regarding a major repair needed on my 2018 Honda Accord. The vehicle was recently diagnosed at an authorized Honda dealership, where technicians determined that the engine requires a head gasket repair. I was quoted approximately $7,000 for the repair. Based on the research I have done, premature head gasket failure appears to be a known and recurring issue reported by other owners of this model, often occurring around 100,000 miles or even sooner. This type of failure at this mileage is unexpected for a properly maintained vehicle and raises concern about a potential defect or design issue. Additionally, the vehicle showed no clear warning signs prior to the diagnosis. There were no dashboard warnings or indicators that would have alerted me to an imminent failure, which made it impossible to address the problem before significant damage occurred. Given the nature of the failure, the relatively low mileage for such a major engine issue, and the high repair cost quoted by the dealership, I am requesting that this matter be reviewed and that assistance or coverage for the repair be considered.