2018 HONDA ACCORD reports

POWER TRAIN · ELECTRICAL SYSTEM · ENGINE

this is a known issue with honda. the head gasket is blown causing all the warning lights to come up on the dash. my car has not got hot, it goes up to the H but goes right back down to normal setting. i have had my local honda dealer look at my vehicle and that is what they told me was the issue. since my car has a rebuilt title, honda won't cover the cost for the repair. i bought the car last year from an out of state small dealer with a rebuilt title. honda is being sued for this issue, because they know about it and still were making the vehicles. this is no fault of my own and honda should honor the recall and repair my car at no cost to me. as i am now unable to drive the car and i can't afford to have it repaired. i contacted honda of america and filed a claim and also a good-will request, but because of the rebuilt title, i was not eligible for help. every single honda made during these specific years 2018-2021 are having the same issues. not one car should be discriminated against because of a rebuilt title. the re-build has zero impact on the head gasket and the cylinders being too close together, and the turbo causing the head to blow. my car is right at 128,000 miles, and it’s known for the issue to start occurring around 120,000 miles. then come to also find out there’s an ongoing issue with gas leaking into the oil. they denied my request on that too. any help would be greatly appreciated! thank you for your time and consideration! -RF-

AIR BAGS · SEAT BELTS

The contact owns a 2018 Honda Accord. The contact stated that while operating the vehicle, the message "SRS Fault" was displayed. The vehicle was taken to the local mechanic to be diagnosed, and it was determined that the passenger’s seat occupant detection sensor had failed and needed to be replaced. Additionally, the mechanic retrieved a seat belt fault code. No further information was available. The vehicle was not yet repaired. The local dealer was notified of the failures and informed the contact that the VIN was not included in NHTSA Campaign Number: 26V332000 (AIR BAGS) nor 23V158000 (SEAT BELT). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 72,000.

UNKNOWN OR OTHER · ENGINE

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.

AIR BAGS

Side airbag not working properly ("SRS problem" intermittently showing up on dashboard): DTC checked and found B0020-13: Open or increased resistance in the left side airbag inflator. No accident on this side of the vehicle has occurred to my knowledge. A few months ago back in March my car was impacted on the right rear tire/quarter panel (repaired at caliber collision). That's the only known accident. The SRS notification first appeared 2 weeks ago and then it turned off. It appeared again yesterday 9/14/2026.

ENGINE

My car starting shutting off on me suddenly while driving. No warning lights. Eventually had it towed to honda. Honda informed me it was the head gasket that blew with only 109,000 miles on the car at the time. My car had the 1.5 turbo engine that is now currently under investigation for this same issue. Ended up having a used motor put in it that cost me $4,000

ENGINE · FORWARD COLLISION AVOIDANCE · LANE DEPARTURE

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.

ELECTRICAL SYSTEM · ENGINE · FUEL/PROPULSION SYSTEM

1Engine 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. 3Problem was confirmed by Morganton Honda- Morganton NC. 4 Check engine light.

FORWARD COLLISION AVOIDANCE

Since I purchased this car in 2022, the collision mitigation braking system has randomly engaged for no reason. This has happened multiple times over the years, day and night, when no other vehicle, road obstructions, or other factors warrant the system triggering.

ENGINE

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

ENGINE AND ENGINE COOLING

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.

ELECTRICAL SYSTEM · ENGINE · FUEL/PROPULSION SYSTEM

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.

ELECTRICAL SYSTEM · ENGINE · FUEL/PROPULSION SYSTEM

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.

ENGINE

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.

ENGINE · LANE DEPARTURE

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.

POWER TRAIN · ELECTRICAL SYSTEM · ENGINE

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.

POWER TRAIN · ENGINE

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.

VISIBILITY

The contact owns a 2018 Honda Accord. The contact stated that while driving at an undisclosed speed, the AC evaporator became inoperable and was blowing hot air. The contact stated that the failure had been occurring since the vehicle was purchased in 2018. The contact stated that the evaporator was leaking. The dealer confirmed the failure. The manufacturer was notified of the failure. The vehicle was not repaired.

STEERING · SERVICE BRAKES · FORWARD COLLISION AVOIDANCE

On August 29th 2026 at 1:28PM (13:28) 148,320 mi. on odometer During interstate driving and topping the Sunshine Skyway Bridge on Interstate 275 Northbound (27.617863, -82.653639) the vehicle detected both road departure and engaged the emergency automated braking due to the shadow generated by the superstructure of the Skyway Bridge falling on the road surface. The vehicle attempted to correct the "road departure" by steering the vehicle away from the perceived problem and violently engaged the brakes nearly causing a collision as it has done numerous times before. In this particular event, it was an extraordinarily dangerous situation given the location that it occurred (190ft in the air on a walled in 2 lane interstate highway). I have reported this to NHTSA and American Honda on multiple previous occasions and await a repair or even an acknowledgement of this extremely dangerous issue. Honda has opened a case on this but have had 12+ months and no response has been issued.

ENGINE · FUEL/PROPULSION SYSTEM · FORWARD COLLISION AVOIDANCE

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.

POWER TRAIN · ENGINE · FUEL/PROPULSION SYSTEM

In September 2025, all dashboard lights came on while driving down the road. I immediately pulled over and turned the car off. When turning the car back on, all lights remained on and I drove to the nearest repair shop, where at this time it was beginning to run hot. I was told at this point that the head gasket had blown and this would need to be replaced. I replaced the head gasket for $4100.00. After that, in October 2025, I had to replace the fuel injectors and coil packs. In February 2026, driving down the road, the car was not running hot but all lights came on the dash again and it went into limp mode. The car had to be towed to a repair shop where it was stated that coil packs needed to be changed again. In August 2026, the turbo had to be replaced, resulting in an additional $2500.00

ENGINE

I am reporting a suspected head gasket/engine defect involving my 2018 Honda Accord Sport. My vehicle experienced multiple engine-related problems before ultimately requiring head gasket replacement and cylinder head repair. On July 27, 2024, at approximately 161,480 miles, the turbocharger was replaced. In September 2025, at 207,539 miles, my vehicle was serviced at Joe Morgan Honda, an authorized Honda dealership. During that visit, the Honda technician documented that the cooling system fluid level was low and that no external leaks were found. The technician documented that they suspected the head gasket was causing internal coolant loss over time. I was instructed to monitor the vehicle and was provided an estimate of approximately $4,400 plus tax for head gasket replacement. I specifically asked the Honda service advisor whether the head gasket could be repaired at that time or whether anything could be done to prevent the suspected problem from progressing. I was told there was nothing that could be done at that point other than monitor the vehicle. Within weeks, multiple warning lights illuminated on my dashboard and the vehicle began experiencing significant drivability problems, including hesitation, misfiring, and loss of acceleration. The loss of acceleration was particularly concerning because the vehicle did not respond or accelerate normally while being driven. I took the vehicle to Integrity Automotive on September 25, 2025, at 208,583 miles. The engine was checked, and the ignition coils and spark plugs were replaced. Despite those repairs, the vehicle ultimately required major engine repairs on November 8, 2025, at 210,230 miles. The cylinder head gasket was replaced and the cylinder head was serviced/repaired. The fuel injectors, spark plugs, and serpentine belt were also replaced, and the cooling system and drivability/performance were checked. Only approximately 2,691 miles elapsed between the Honda dealership documenting the suspected i

POWER TRAIN · SERVICE BRAKES · ENGINE

The car dashboard Is lit up and loose power out of nowhere when driving .

ENGINE AND ENGINE COOLING

The contact owns a 2018 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights were illuminated, and the vehicle went into LIMP Mode, and the vehicle failed to exceed 5 MPH with the accelerator pedal depressed. The vehicle was taken to a dealer where it was diagnosed and determined that the turbo boost and head gasket needed to be replaced. The vehicle was repaired; however, the failure persisted. The failure had occurred on several occasions. The vehicle was towed to an independent mechanic where it was diagnosed and determined that the engine needed to be replaced. The manufacturer was notified of the failure. The failure mileage was approximately 100,000.

ENGINE

Car losing power on the interstate and side roads Replaced spark plugs, replaced coil packs replaced fuel injectors after dealers diagnostic testing $2500 for those issues Vehicle still misfiring took in to another dealer head gasket need replacement $5200 quote

ENGINE · FORWARD COLLISION AVOIDANCE

Issue 1: Faulty Collision Mitigation Braking System & Subsequent Crash Incident Details: In July of 2025, my vehicle’s automatic braking warning lights randomly activated and triggered an unprompted, emergency stop on [XXX]—despite having no vehicles ahead of me. This sudden malfunction directly caused a rear-end collision on the interstate. Documentation: A formal crash report was filed with the Georgia State Patrol. Ongoing Risk: The false automatic braking warnings continue to trigger randomly, creating an extreme safety hazard for myself and surrounding traffic. Issue 2: Premature Turbocharger Failure & Cracked Head Gasket Diagnostic Timeline: Immediately upon picking up the car from a body shop repair, every warning light on the dashboard illuminated erratically. After Ed Voyles Honda in Marietta claimed nothing was wrong, the body shop replaced a potentially loose battery cable. The issue persisted, and Shottenkirk Honda in Cartersville ultimately diagnosed a total turbocharger failure in March 2026. Out-of-Pocket Cost: Honda denied any goodwill coverage despite the widespread, documented failure of these 1.5L engines across 2018–2023 models. I paid $1,700 out of pocket to replace the turbocharger. Escalating Failures: Shortly after the turbo replacement, the head gasket cover cracked—another notorious, widely recognized defect inherent to this specific engine setup. At only seven years old, this vehicle has proven to be unreliable, dangerous, and financially burdensome. The known defects in the 1.5L powertrain warrant a widespread recall. Given my long-standing loyalty and the severe nature of these defects, I request a full reimbursement of the $1,700 turbocharger repair costs and an immediate investigation into the phantom braking issue. I expect a prompt reply outlining how Honda intends to resolve these safety issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

Turbo has gone out and it's several thousand dollars to get fixed and will eventually affect the overall lifespan and performance of the engine if not repaired in a timely enough fashion. There is no recall for this specific issues even though thousands of Honda Accord owners are dealing with the same failure/repair and there are no offers of goodwill assistance from the dealership or manufacturer. The dealership assured that engine failure is inevitable without a turbo replacement and they can't determine the extent of the damage that's already been done to the engine since the turbo showed signs of failure.

ENGINE

Blown head gasket

ELECTRICAL SYSTEM · ENGINE

turbo and the head gasket

UNKNOWN OR OTHER · ENGINE · FUEL/PROPULSION SYSTEM

A lot of warning sides are on the dash , has been coming on every since the mileage hit 100k

FORWARD COLLISION AVOIDANCE · LANE DEPARTURE · BACK OVER PREVENTION

These 9 things are on my dashboard- I’ve called Honda corporate to see if they could do something about this because I’m not the only one with this problem. My car is now barely drivable and the dash have not went away Emission system Road departure mitigation system Brake system problem Collision mitigation braking system Hill start assist problem Adaptive cruise control system Vehicle stability assist system problem Electric power steering system

ENGINE AND ENGINE COOLING

The contact owns a 2018 Honda Accord. The contact stated that while driving, the vehicle failed to exceed 35 MPH. Several unknown warning lights were illuminated. The contact pulled over to the side of the road and restarted the vehicle; however, the failure persisted. The vehicle was taken to the dealer, where it was diagnosed with a blown head gasket. The vehicle was not repaired due to the cost. The dealer was in the process of contacting the manufacturer for assistance. The manufacturer had not yet been directly notified of the failure by the contact. The failure mileage was approximately 103,000.

ENGINE

In June of 2026 I was merging onto a busy high way trying to accelerate on while in the middle of the high way my car completely starts decelerating while next to two semis and not being able to do anything as I finally get to the side of the high way I turn my car off and back on all of my lights started coming on and appearing on my dash while this was all happening I start the car again and it is doing the same thing not accelerating and while trying it is jerking this could have killed me or others due to my faulty head gasket Honda wants me to pay $4,000 to replace this head gasket I am a college student with no money and still having to pay my car payment I have a 2018 Honda accord 1.5L turbo engine and still have not been able to drive my care due to this I have a 118,00 miles and it started acting weird before I even hit 100k miles this is not okay this could have harmed others due to these faulty issues I see it is a wide spread concern and something needs to be change and I was also denied the goodwill act due to this I start school next week 45 min away and can’t even go to my class for nursing I’m disappointed in Honda this was supposed to be a long term car

UNKNOWN OR OTHER

i have a 2018 honda accord. it used to have only wired carplay. i paid a honda dealer for the official advertised wireless carplay upgrade. over a year later suddenly the head unit doesn't work. it just shows "please insert usb drive containing valid software license file, and press ok button." many people online are reporting this issue. the honda dealer that did my original install refuses to fix this issue free of charge, and they are unable to assure me that they are aware of the issue and have a confirmed fix. i refuse to pay them to do a diagnostic just for them to tell me they can't fix it, or to give me a temporary fix that will break again later

UNKNOWN OR OTHER · FORWARD COLLISION AVOIDANCE

While driving my 2018 Honda Accord Sport 1.5T, multiple warning lights suddenly illuminated on the dashboard at the same time and several warning messages appeared. The vehicle displayed warnings for different systems, including a message stating, “Hill Start Assist Problem. Vehicle May Roll Upon Brake Release. See Your Dealer,” along with the check-engine light and several other warning indicators. I purchased this vehicle brand new in 2018, and since the day I purchased it, I have consistently had the vehicle serviced and maintained at an authorized Honda dealership. I have relied on Honda to perform the recommended maintenance and address any problems with the vehicle. When all of these warning lights and messages appeared, I took the vehicle to the Honda dealership. The dealership adjusted the valves and told me that everything was fine. Approximately one week later, I had to take the vehicle back because the problem was not resolved. At that time, I was told that the vehicle needed a head gasket. The vehicle had also previously required a turbo replacement. Because of the seriousness of the head-gasket diagnosis, I obtained a second opinion from another repair facility, and they also determined that the head gasket was the problem. I do not understand how a vehicle that I purchased new and have consistently maintained through Honda could experience these significant engine-related problems. I am especially concerned that numerous unrelated warning lights and safety-system messages appeared simultaneously before the head-gasket problem was diagnosed. I am submitting this complaint because I believe this issue should be investigated to determine whether other 2018 Honda Accord 1.5T vehicles are experiencing similar head-gasket, turbo, and multiple-warning-system problems and whether these failures may represent a defect that should be addressed by Honda or through a recall.

ENGINE

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.

UNKNOWN OR OTHER

What component or system failed or malfunctioned, and is it available for inspection upon request? The vehicle's head gasket has been identified as needing replacement. The Honda dealership inspected the vehicle on Wednesday, August 12, 2026, and confirmed that a new head gasket is needed. The vehicle and the failed component should be available for inspection upon request. How was your safety or the safety of others put at risk? The ongoing malfunction caused numerous warning lights and messages to appear on the dashboard over approximately the past two months. Because the vehicle was displaying multiple warnings and experiencing an apparent engine-related issue, I was concerned about the vehicle's reliability and safety while driving. An engine malfunction could potentially cause the vehicle to lose power or become inoperable unexpectedly, which could put me and others on the road at risk. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The problem was inspected and confirmed by a Honda dealership on August 12, 2026. I was informed that the vehicle needs a new head gasket. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? Yes. The vehicle was inspected by an authorized Honda dealership. To my knowledge, it has not been inspected by police or insurance representatives. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Yes. For approximately two months prior to taking the vehicle to the dealership, multiple warning lights and messages began appearing on the dashboard. The warnings continued to appear and became increasingly concerning, which ultimately led me to take the vehicle to the Honda dealership on August 12, 2026, where I was informed that the head gasket needs to be replaced.

ENGINE

The car suddenly stopped speeding up on the highway, and the check engine light began to flash. There were no warning signs before this occurred. I was driving with my kids when I had to think and move quickly off the highway because there were other cars behind us. The car would only roll because it wouldn’t speed up. Yesterday, on August 17, the car was towed to a Honda dealership, where they ran some tests. They found out that the car has a blown head gasket.

ENGINE

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.

ELECTRICAL SYSTEM

The contact owns a 2018 Honda Accord. The contact stated that after stopping the vehicle, the check engine, stabili-trak, steering, and the Forward Collision Avoidance warning lights were illuminated, with unknown messages displayed. The vehicle was taken to the local dealer, and a system reset was performed, and the contact was informed that the battery needed to be replaced. The contact stated that the battery was recently replaced. The contact retrieved the vehicle, and hours later the failure reoccurred. The cause of the failure was not yet determined, and the vehicle was not yet repaired. The manufacturer was not yet contacted. The failure mileage was 127,000.

ELECTRICAL SYSTEM · FORWARD COLLISION AVOIDANCE · LANE DEPARTURE

While driving, the vehicle suddenly jerks or “jumps,” followed immediately by a noticeable loss of power. Shortly after this occurs, the multi-information display shows a series of warnings that include: Collision Mitigation Braking System Problem – See Your Dealer Adaptive Cruise Control System Problem – See Your Dealer Road Departure Mitigation System Problem – See Your Dealer Auto High-Beam Problem – Manual Controls Available – See Your Dealer Brake System warning light A “Systems Initializing… Continue Driving” message also appears. I have photographic documentation of these dashboard messages. This sequence creates a significant safety concern. The sudden jerk and power loss can occur while the vehicle is in motion, and the subsequent disabling of the Honda Sensing systems (Collision Mitigation Braking, Adaptive Cruise Control, and Road Departure Mitigation) leaves the vehicle without those critical driver-assistance features. Because this involves sudden power loss and the disabling of safety systems, I consider the issue urgent and ask that it be prioritized.

ENGINE

All warning lights came on whilst driving. Scheduled a diagnostic at the dealership. Dealership confirmed the head gasket had blown due to the design flaw of the coolant pathway between cylinder #2 and #3. This is a common problem with this engine. Vehicle is out of warranty. Now faced with a big repair bill.

FUEL/PROPULSION SYSTEM

Unknown, all lights are showing on dash with "Emissions systems problems power may be reduced see dealer." After spark plug replacement about a month later raw gas smell, rough idling, and slight jerking continues.

LANE DEPARTURE · FORWARD COLLISION AVOIDANCE

The dashboard lights up”brake” and the car slams on the brakes unexpectedly on occasion- and sometimes for no known reason. This has happened countless times. yesterday it happened again while driving on the intersection at 70 mph . there were no vehicles in front of me and I was not changing lanes, but the car slammed on the brakes, making the car behind me almost rear-ended me & cars having to swerve around my vehicle. This is very unsafe and it needs to be addressed and corrected by Honda.

ELECTRICAL SYSTEM · ENGINE

2 weeks ago. All of my warnings and lights for my car came on. We undid my battery, charged it and did it again. The lights went away and about 3 days ago they came back on. Now my car is overheating and the system is reading wrong.

ENGINE · FORWARD COLLISION AVOIDANCE

The head gasket is failing and causing the engine to overheat and misfire. Its a repeating issue I see online and have taken it to a certified Honda mechanic multiple times. The first diagnosis stated that the biggest issue was the fuel injections. Now this second diagnosis shows the head gasket. It poses a great danger especially in highways, as it causes the car to decelerate on its own and rattles as if it's losing power. It will overheat when it is idling. The check engine light turned on a week after purchasing the car from a local dealership, and the dashboard lights were wiped from the system prior to buying the car a year ago. Now I'm looking at over 7k in repairment costs while still financing a car I believed was reliable.

POWER TRAIN · ENGINE · FORWARD COLLISION AVOIDANCE

I am reporting a safety concern involving my 2018 Honda Accord. I purchased my vehicle used in January 2024 at approximately 90,000 miles and have kept up with the recommended maintenance during my ownership. At approximately 120,000 miles, a Honda dealership diagnosed head-gasket failure with coolant intrusion involving cylinders 3 and 4. Before diagnosis, the vehicle experienced rising engine temperature while idling, coolant loss, jerking during acceleration, numerous warning lights, and severely reduced acceleration. The problem progressed to loss of power and stalling while driving and slowing/stopping, requiring me to place the vehicle in Park and restart the engine to continue driving. The vehicle also developed unstable RPMs and engine surging while in Park. Honda performed a cooling-system pressure test and borescope inspection and confirmed coolant intrusion. Head-gasket replacement cost approximately $5,000. I contacted American Honda (Case #16533411), but goodwill assistance was denied because the vehicle is outside warranty and Honda stated it had no Honda-dealership service history. I am reporting this because the head-gasket failure resulted in loss of propulsion and stalling while operating the vehicle, creating a serious safety concern.

ELECTRICAL SYSTEM · EXTERIOR LIGHTING

In the duration of ownership with this vehicle, there is always lights lighting up on the dashboard which trigger my sensors and causes my dashboard to light up like a Christmas tree. I do not feel safe when that happens randomly in the middle of driving on the highway.

ENGINE

In July 2026, our 2018 Honda Accord required a head gasket replacement. Prior to the diagnosis, the vehicle began experiencing rough starts and engine misfires. While driving, the car suddenly lost power and would not accelerate beyond approximately 10 mph. After returning home and restarting the vehicle, its performance temporarily returned to normal; however, the engine continued to idle roughly. We had the vehicle scanned, and the diagnostic result indicated a misfire in Cylinder 3. The vehicle was taken to our local Honda dealership, where we were informed the head gasket failed and needed to be replaced. Given that the vehicle has fewer than 140,000 miles, we do not believe such a major engine repair should be necessary. Over the past 25 years we have owned multiple Honda vehicles, including Accords, Civics and CR-Vs well over 200,000 miles with our current 2008 Honda CR-V having more than 344,000 miles. None of these vehicles have ever experienced a head gasket failure or similar engine issue. We have never had such a significant costly repair, over $6,000. We are extremely disappointed that our 2018 Accord required such a significant repair at relatively low mileage. We have also learned of allegations in ongoing litigation Bissell v American Honda Motor Co, involving similar head gasket issues affecting Honda vehicles. Based on our experience and the number of reported complaints, we believe Honda should issue a recall, provide warranty coverage or reimburse affected owners for repair costs whichever benefits the customer. We respectfully request that Honda review our case and consider reimbursement or goodwill assistance for this unexpected and expensive repair.

ELECTRICAL SYSTEM · VEHICLE SPEED CONTROL · ENGINE

While driving, my vehicle began shaking/rough running and the check-engine light came on. Multiple warning lights and system warnings appeared on the dashboard, including the brake system, steering, traction control, and TPMS warnings. The vehicle experienced noticeable shaking and reduced/abnormal performance. I am concerned that this may be a safety-related defect because multiple vehicle systems are being affected.

POWER TRAIN

My fiancé was driving my 2018 Honda Accord when the vehicle suddenly jolted violently while accelerating up a bridge. Immediately afterward, multiple warning lights, including the check engine light, came on and the vehicle lost all power. Thankfully, she was able to coast down the bridge and pull into an empty parking lot. This was extremely dangerous because the vehicle lost power while being driven and could have caused a serious accident. After turning the vehicle off and restarting it, the car appeared to operate normally. Because the issue was intermittent, I initially suspected the battery. I had the battery tested multiple times, but it was fine. Since the problem continued, I took the vehicle to a Honda dealership. They diagnosed a blown head gasket and estimated the repair would cost approximately $6,000. The vehicle is only worth about $6,000, making the repair financially unreasonable. Apparently this is a known/common issue with 2018 Honda Accords. I requested Honda goodwill assistance, but Honda declined. I then took the vehicle to a second independent repair shop for another opinion. They advised that the head gasket needed for the vehicle was on back order and therefore could not provide a repair estimate. The fact that this replacement component is currently on back order is concerning and raises further questions about how frequently this repair is being needed. If Honda cannot keep enough replacement parts in stock to service affected vehicles, it further suggests that this may be a widespread issue that deserves additional investigation. The vehicle is available for inspection upon request and has been inspected by both a Honda dealership and an independent repair shop. I am extremely concerned that a vehicle can suddenly lose all power while being driven and that a repair for a known/common issue costs nearly the entire value of the car. I believe this issue warrants further investigation by Honda and consideration of a recall or assistance.