2018 Honda Accord complaints

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.

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 thi

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

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.

2018 Honda Accord with blown head gasket. Vehicle has a 1.5L turbo charged engine and 100,000 miles.

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.

I am experiencing an ongoing issue with my 2018 Honda Accord LX 1.5L where multiple warning lights on the dashboard illuminate simultaneously without warning, often described as the dash lighting up “like a Christmas tree.” These lights include (but are not limited to) collision mitigation braking system, road departure mitigation, adaptive cruise control, power steering, and other safety-related systems. The issue appears to occur intermittently and without a clear cause. When this happens, several driver-assist and safety features become disabled, which raises serious safety concerns while operating the vehicle. After researching this problem, I have found numerous reports from other Honda Accord owners experiencing the exact same issue across various online forums and communities. Many of these individuals have also been advised to file complaints with NHTSA due to the widespread nature of the problem. This appears to be a potential systemic or electrical issue that affects multiple critical safety systems at once. I believe this defect could pose a significant safety risk and should be investigated further.

When Tpms light comes on, all safety features including cruise control become disabled. Lane assist and collision safety features become disabled. On top of that, I have had Honda look at my rear end after they replaced a rear upper control arm after being in a ditch and at 246,000 current miles, I have replaced my tires 16 times due to the rear tires ripping the tread off between 10-15k. If there was nothing else wrong, why have I spent between $10,000-$15,000 miles on tires? I have had numerous alignments at Honda and elsewhere. Marion Honda claims it’s normal! I was told I can put adjustable control arms on. I have met other Honda accord sport 1.5t owners with 50k miles on one set of tires, yet I can’t get more than 15k on the rear tires. Clearly something is bent or incorrect currently I am re replacing the upper control arm.. They say the alignment rack does not flag anything. I have bought between Goodyear, Michelin, and Pirelli tires they also replaced a turbo, only for a few months later to have a pressure problem that Findlay Honda found I was missing an oring in the turbo or intercooler. How? Orings do not call out. Fast forward 18 months and another bad turbo on this lemon!

My air conditioner EVAPORATOR CORE HAS A HUGE LEAK. Dealership told me they just go bad its not even 10 yrs old 2018 Honda accord ex just go bad a hole ?? Honda extended the condenser warranty to the evaporated core but the dealership said no just the condenser I'm sorry. But you got lot people out here with just hole in there evaporator core this is not normal and to be told its 2800 to fix and could go bad again in 5 yrs . My air conditioner was fine in September 2025 now April 2026 a hole leaking ?????

I have bought this car new in 2018, The issue that I’m having is that ..I’ll be driving on the highway or local my car will brake on its own without any hazards in front of it . It’s very dangerous it almost caused me an accident on the highway .

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)

All warning lights are on the dash. Came on while driving.

The contact owns a 2018 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. The failure was intermittent. The failure had occurred while attempting to start the vehicle, while the vehicle was idling, and while the vehicle was being driven. The contact stated that the vehicle was taken to several independent mechanics, however the failure was not duplicated. The vehicle was taken to an alternate independent mechanic; however, the failure was not duplicated. The contact was informed that the failure might be a communication issue with the software. The dealer was made aware of the failure. The contact referenced an unknown recall; however, the VIN was not under recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 135,000.

All alarms are on. Breaks adaptive cruise control hill assist and all other alarms. Taken in to 2 Honda deals and serval mechanics they cannot figure out what’s wrong with it. About once a month all the alarms will clear while driving and the car sensors will start making the car drive odd. Have to fight the steering wheel to keep it straight and wheels will independently break, thinking it’s sliding but it’s not. Extremely dangerous on snowy road or wet roads.

The car misfires very badly. I have changed the fuel injectors, fuel pump, spark plugs and the ignition coils to no avail. Also, car randomly showed to be overheating one day, got home and checked and my coolant level had dropped dramatically very quickly. The car has since been diagnosed with a bad head gasket.

I was driving and the engine light started flashing, the car started to hesitate and would not go over 20 mph. I took it to the Honda dealership in Frisco, TX and they diagnosed the issue using Boroscope and recommended Head Gasket replacement with spark plugs due to plugs being fouled from coolant leaking into combustion chamber.

On June 13, 2025, the fuel pump was replaced due to a recall. After the fuel pump was replaced and, in particular, after reading the Honda forums for this car, all the warning lights in the instrument cluster came on. After my mechanic checked my car and, with his knowledge of this type of vehicle, he recommended replacing the fuel injectors at 86,000 miles. Honda recommends replacing the fuel injectors at 1000 k. In the forums, this is what owners of the 2018 Honda Accord are doing.

This car has a faulty motor that Honda is well aware of. The head gaskets crack, and the antifreeze leaks into the cylinder. Specifically, Cylinder 3. My car is at the dealership, and the repairs are 6500. They refuse to acknowledge this problem and currently have a class action lawsuit because of this very issue. I need a car because I am a full-time student.

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 .

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.

A supplemental restraint warning came on dashboard, I noticed other accord owners are experiencing the same this light has to do with possibly airbags or seatbelts making it possibly unsafe to drive.

I am reporting a failed remedy for Recall 24-009 (23V-858). Following the fuel pump recall, my 2018 Accord stalled in traffic on March 21. On March 24 upon starting my vehicle all warning lights were illuminated on the dashboard, Millennium Honda admitted the O-ring was misinstalled. This error triggered codes P0172/P0176 less than twenty-four hours later. The dealer is forcing me to pay $425 for damage caused by their botched recall repair.

The contact owns a 2018 Honda Accord. The contact stated that the engine overheated while parked, with the message "Engine Temperature too High - Do not Drive - Allow Engine to Cool Down" was displayed. The vehicle was taken to two independent mechanics, where the spark plugs and battery were replaced, however, the failure persisted. The vehicle was then taken to a local dealer, where it was diagnosed with head gasket failure. The manufacturer was notified of the failure. The approximate failure mileage was 96,500.

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

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.

Head gasket blown, apparently this has been a known problem with Honda, which they are refusing to repair, noting mine did not come from a specific factory. [XXX] 2018 ACCORD 1.5 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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.

I own a 2018 Honda Accord equipped with Collision Mitigation Braking System (CMBS). The vehicle has experienced multiple instances of false collision warnings and phantom braking. The issue occasionally occurs when approaching overhead interstate signs. In most cases, the system flashes brake warnings briefly and then clears. However, on one occasion during rainy conditions a few years ago, the vehicle unexpectedly applied the brakes at highway speed with no obstacle present. The vehicle has undergone multiple camera calibrations (this may have also included the radar), but the problem persists. This creates a serious safety hazard, particularly at highway speeds where sudden braking could result in a rear-end collision. The issue appears to be related to false object detection by the ADAS system, potentially involving radar or sensor misinterpretation.

Almost all of the 1.5T engines (L15BE) are having head gasket issue where the gasket slowly fails over time resulting in slow coolant loss and at one point sudden overheating causing block and head warping die to design flaw ( groove in between the cylinders resulting in lack of effective and enough surface area for the head gasket to seal the combustion chambers). It has been confirmed by Honda techs and by average 100k to 140k, all engines are failing and the dealers are raking up $ 6k to 9k charge for each change or even having to need new engines half the time. This process of slow leak results in sudden loss of power at highway speeds or acceleration and causing extreme danger of getting hit and having accidents. Took vehicle to mechanic and confirmed coolant leak inside cylinder 4 and 3.

I owned a 2018 Honda Accord,i got it new from the dealership so im the only owner of this vehicle. my headlights keep building condensations prematurely causing them to fail . I have already replaced multple headlights because of this . also when the bulbs go out honda made it where the bulbs can not be replaced at all. these headlights cost close to $1000 each plus 500 in labor to installed. theres should be a recall for this as its costing me soo much money . I hoping we must hold accountability to its highest level so consumer dont have suffer like this. Thank you so much for reading!

Major head gasket failure with no warning while pulling out onto a busy road. There is a major design flaw with the head gasket, no recalls or preventative notices from Honda whatsoever! My wife was put into a dangerous situation once the car went to limp mode with no warning while getting onto a busy road. Multiple lights on the dash lit up when the car entered limp mode. The car was immediately towed to a Honda dealership and was diagnosed with a blown head gasket. Service manager stated this is a VERY common occurrence and is indeed a design flaw. Car was fixed with no help from Honda for their faulty design $5100...

The AC system on my 2018 Honda Accord 2.0T stopped blowing cold air due to refrigerant leaks in both the AC condenser and AC evaporator. The condenser is covered under Honda's warranty extension (Service Bulletin 21-018) which acknowledges a manufacturing defect where R-1234yf refrigerant corrodes the condenser tube walls. The dealer confirmed the evaporator is also leaking from the same corrosion defect. The dealer states both must be repaired together because the system cannot hold refrigerant with a leaking evaporator. Honda corporate is refusing to cover the evaporator repair despite it being caused by the same known manufacturing defect. This is a systemic issue affecting 2018-2020 Accords and other Honda models using the same AC components and R-1234yf refrigerant.

Head gasket had to be changed out. I have seen multiple cars having the same issue with this model. The vehicle sputtered and would not let me drive above 40mph. It was a safety issue when I first had it and it occurred in the freeway.

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

Transmission started bucking at 50k miles, the problem has gotten substantially worse at 60k miles. Rough downshifting and upshifting in low gears. Will slam into gears 2-3 often and cause driver and passengers to lurch forward. Will cause very rough acceleration at times and causes a danger in traffic given the speed becomes unpredictable. Transmission does not know what gear to be in even after ATF type 2.0 fluid change following dealer procedure. This is putting me and other drivers at risk because I cannot control my speed when transmission is slamming in between gears. No warning lamps, undetected by cars TCU.

The contact owns a 2018 Honda Accord. The contact stated that while driving approximately 35-40 MPH, the vehicle experienced phantom braking. No warning light was illuminated during the failure. The vehicle was not diagnosed nor repaired by an independent mechanic or a dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000.

The contact owns a 2018 Honda Accord. The contact stated that while driving 70 MPH in the fast lane, the vehicle experienced head gasket failure. The vehicle lost automotive power and decelerated to 5 MPH. The contact was able to pull over safely. The engine light was illuminated. The vehicle was taken to the local dealer the next day, where it was diagnosed with a misfire in cylinders #2 and #3, a computer code malfunction, and a blown head gasket. The vehicle was partially repaired. The manufacturer was contacted and assisted with the cost of the repair. The manufacturer confirmed there was no warranty coverage on the vehicle. The failure mileage was approximately 118,000.

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.

My turbo and fuel injectors went out at the same time. It has been fixed, so I don't think it can be inspected My safety was put at risk. The car randomly went into limp mode on the interstate at high speeds and suddenly came to almost a complete stop Yes, it was inspected by a mechanic, everyone with a 2018 honda accords are having this issue Yes, it was inspected by a mechanic. No warning lamps or anything, just a blinking check engine light that appeared for the first time ever.

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

Experiencing an ongoing issue where multiple warning lights appear on the dashboard at the same time. The lights include several safety and system warnings, making it look like many different systems in the vehicle are malfunctioning simultaneously. Even after repairs were made, the dashboard warning lights continue to stay on or return shortly after. It has become frustrating because the vehicle continues to show problems even when something has already been fixed. THIS IS A SAFETY CONCERN. How can we know if something is actually malfunctioning if codes are being thrown, constantly?? We also can’t use the safety features included with the vehicle when this is happening. Having so many warning lights on at once also creates concern about the reliability and safety of the vehicle, especially since several of the warnings relate to important systems such as braking, driver assistance features, and engine performance. Repairs aren’t helping and I’m seeing sooooo many other 2018 accord owners with the same issue, as has been documented with this site, NHTSA

I took my accord into Snellville GA Honda dealer for fuel pump recall and the day I received it from the service department, it started to sputtter and engine shutdown. I took back 3 times and got a different answer each time. I believe the turbo charger may have been affected from the fuel pump being bad. The latest diagnostic says it has turbo under boost issue.

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.

While driving in a busy area with pedestrians and other vehicles, my car hard braked out of nowhere to a complete stop for no reason. I was nearly rear ended. The adaptive cruise control shuts off completely after 15 minutes in use. Says to take it to the nearest dealership. Turning off and restarting the car gets rid of the notification.

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.

Error message "Supplemental Restraint System Problem. See Your Dealer." comes on everyday. I understand this is a Honda well known issue and they refuse to recall.

The contact owns a 2018 Honda Accord. The contact stated that while the vehicle was parked and starting the vehicle, several unknown warning lights became illuminated on the instrument panel. The steering wheel failed to move, and the power steering warning light illuminated, and the steering wheel functionality became limited. In another occurrence, while driving at an undisclosed speed, the vehicle stalled, and it shut off, but was able to restart. The vehicle was taken to a dealer and diagnosed with an electrical failure, but the vehicle was not repaired. The vehicle was taken to an independent mechanic, where the battery was replaced, and the sensor box was cleaned; however, the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 110,000.

A 2018 Honda Accord 1.5T developed an engine misfire, coolant loss, and reduced acceleration shortly after purchase from a dealership on 01/07/2026 (around 156,000 miles / $15,000). On 01/23/2026, during a Honda dealer inspection at about 157,255 miles, the technician noted misfires on startup, found the coolant overflow reservoir empty, pressure-tested the system, and confirmed coolant leaking into cylinders 3 and 4 from the head gasket. The dealer recommended head gasket replacement plus spark plugs, drive belt, and valve adjustment. I was told that continued driving could worsen the condition, leading to overheating and further engine damage. After that diagnosis, the vehicle’s drivability worsened, and it became unsafe to rely on due to misfires and loss of acceleration, especially on the highway. The selling dealership refused to assist, claiming the defect was not present at the time of sale; Honda America acknowledged the head gasket concern but denied a goodwill claim, citing the high cost of the issue and lack of NHTSA enforcement on this issue. An independent repair shop then provided a second inspection/estimate consistent with the same head-gasket repair scope. The vehicle and repair records are available for inspection. No crash or injury occurred, but the defect caused a sudden loss of power and overheating while driving; I was stuck on the highway on two occasions with my hazard lights on after acceleration completely halted. Warning symptoms (the engine light)

The rear brakes on my 2018 Honda Accord Sport 1.5T (Six Speed Manual Transmission) have failed prematurely. This failure of the pads and rotors was confirmed, at the request of American Honda, by me at my local Honda dealer, and was documented in a response to American Honda. This occurred at 46,150 miles which i believe indicates a defective design in that the brake calipers, pads and rotors as a system were not built to the capacity needed to support Honda's design of this car that greatly increases the workload on the rear brakes. I am a very careful driver and minimize the use of brakes as a result. My calculation is that these brakes have failed at 1/4th the life that it would be reasonable to expect. The result is increased safety risk to car owners and drivers who do not act on this premature failure due to it not being normal or expected or affordable. Honda has effectively, through this brake design, implemented a need for car owners to enact a $750 repair on a frequency close to routine maintenance such as oil changes.