2018 Honda Accord complaints

Failed head gasket. Resulting in complete engine replacement including turbo. Causing my car to go sluggish while driving Dealership inspected and confirmed engine and turbo replacement needed All the lights on the dashboard came on at time of incident

On the morning of July 26, 2025, while returning home from a grocery shopping trip, my vehicle experienced a sudden and severe loss of power while traveling on an interstate highway with a posted speed limit of 65 mph. Without warning, the car ceased to accelerate and began to decelerate rapidly. I immediately activated my hazard lights and attempted to locate a safe area to stop. Vehicles traveling behind and alongside me were forced to brake abruptly to avoid a collision. Fortunately, no accident occurred, though the situation clearly presented a significant risk of one. After pulling onto the shoulder, I turned the vehicle off and restarted it. It initially appeared to operate normally, allowing me to resume driving. However, within a few minutes, the loss-of-power incident occurred again. I managed to pull over a second time, restart the vehicle, and continue the approximately 10-minute drive home without further incident. Upon taking the car to my mechanic, I was informed that coolant was present in one of the cylinders, indicating a failed head gasket. The mechanic advised that I bring the vehicle to an authorized Honda dealership for repair. The Honda service department performed diagnostics and confirmed the head gasket failure. The repair cost was $3,758, which I paid in full. Subsequent research revealed that this appears to be a widespread issue affecting certain Honda models manufactured between 2018 and 2022. I discovered numerous consumer complaints online and l

I was traveling at 55mph when the car lost power on the freeway. I had to make my way to the shoulder. I could only travel 10mph. I had the car inspected by an independent mechanic and Honda Dealership. I was told it was the head gasket. I am told by Honda it will cost $5500 to fix. I did some research on this issue and found it to be a design flaw due to the channels that are put in the engine block to pass coolant. I found this is a prevalent and Honda did confirm it. Honda denied helping to fix the car and even though they know about the issue. We purchased this car brand new in 2018 and we thought we had a reliable vehicle with Honda's reputation. Honda's good will program did not accept the case either.

Engine overheating due to coolant leaking and car needing head gasket replacement Fuel injectors also failed

On August 7, 2025, the automatic braking system alerted with the sign break and then proceeded to stop the car when there was no object or vehicle in front of me. This would have been extremely dangerous. If there was someone behind me this is not the first time this has occurred it has happened several times.

Fuel pump recall. Put in an order with Honda dealer January 2024 for the pump. On February 2025 asked if they submitted the order back in January 2024? They said it was. Now it's August 2025 (20 months since) and waiting. NHTSA says if they failed to fix in a timely manner to make a report online. Is 20 months long enough? Driving with a safety recall. Second making a complaint with the 10 speed auto transmission 2nd to 3rd hard shift and 4th to 3rd hard shift. Putting stress on other components can break mounts, the transmission, axles, ect. could also launch the car into the car in front of you, in heavy (slow bumper to bumper) traffic. Wasted my own money and time draining and filling 5 quarts of honda 2.0 transmission fluid. (Also replaced the trans filter behind the warmer housing) Did not fix the issue. Contacted American Honda and they said It's out of warranty and I need to pay for diagnostic and repairs. (I just bought the car in 2023 at 45k miles. Previous owner must of felt it and should of did something while under warranty.) Honda know this issue from the beginning and hiding the issue to save money. Check the Accord forums online. It's most of us if not all the 18-20 10 speed models. Vehicle is 2018 Accord 2.0 10 speed 50k miles. Plus the normal Phantom braking and lane departure which will automatically steer you off the road, so you have to fight the steering wheel.

While driving my 2018 Honda Accord, the engine began running roughly and the check engine lights and multiple warning lights came on. The vehicle was taken to a Honda dealership for diagnosis. The service department informed me that coolant was leaking into the engine, causing damage to the head gasket and cylinders 2 and 3. They confirmed this issue and recommended either an expensive head gasket/cylinder repair or a full engine replacement. Prior to this failure, I occasionally noticed mild engine hesitation, but no specific warning messages about low coolant or overheating appeared until the check engine light activated. The dealership stated this is not an uncommon issue with this engine. Upon further research, I discovered many other 2018 Accord owners with the same 1.5L turbocharged engine have reported coolant intrusion, cylinder damage, and head gasket failures — often affecting cylinders 2 and 3 specifically. This appears to be a design or manufacturing defect in the engine. This type of failure poses a safety risk due to potential engine misfires, power loss, or stalling while driving. The problem was confirmed by a licensed Honda service center, and I believe this issue should be investigated further for potential recall or manufacturer accountability.

The contact owns a 2018 Honda Accord. The contact stated while driving at an undisclosed speed, the vehicle stalled, and several unknown warning lights illuminated. The contact attempted to drive the vehicle off the road, and the engine seized. The contact stated that the failure had occurred while driving on a busy highway. While attempting to restart the vehicle, the vehicle failed to start. The contact stated that due to the failure, the vehicle was almost involved in a crash. The contact stated that drivers were shouting and were very aggressive. The contact was concerned for his safety and considered calling the Police for assistance. The two nearby drivers attempted to jumpstart the vehicle and assisted with pushing the vehicle off the road. The tow truck arrived on the scene and attempted to jumpstart the vehicle, but the vehicle failed to start. The tow truck driver determined that the vehicle failed to start due to a possible fuel pump failure. The vehicle was towed to the dealer. The contact referenced an unknown recall; however, the VIN was not under recall. The contact stated that the vehicle was towed to an independent mechanic and was diagnosed with fuel pump failure. The contact was advised to tow the vehicle to the dealer. The vehicle was towed to the dealer and was repaired; however, the contact was not informed of the cause of the failure until after the repair was completed. The contact requested the diagnostic information and was informed that the failure

I own a 2018 Honda Accord EX‑L (VIN#: [XXX]). Shortly after a service visit to a Honda dealer for unrelated maintenance (in Sep. 2024 with an estimated 50,000 miles), the dashboard began showing ‘Supplemental Restraint System Problem – See Dealer’. A dealer quoted $400+ to diagnose and replace what appears to be a common passenger airbag indicator sensor failure, a known issue reported by many 2018 Accord owners. I believe Honda should issue a recall due to the safety risk. I’m filing this as a VOQ complaint for ODI’s review and authorize NHTSA to share my identifying info with Honda if needed. Supporting Documentation and numerous examples of complaints from hundreds of Honda Accord owners relating to this problem: - Numerous drivers of 2018 Honda Accords have reported the identical warning (“Supplemental Restraint System Problem – See Dealer”) along with fault code B002013, intermittent dashboard behavior, and inability of dealers to resolve it consistently. - Honda’s 2024 Campaign 24‑050 identifies the seat weight sensor as directly causing SRS warnings and passenger airbag indicator failure - demonstrating this component is known to fail and trigger airbag system alert behavior, even if not yet applied to 2018 model year. - Independent coverage confirms the risk and design defect in seat sensors causing unintended SRS failures, underscoring the safety risk and Honda’s formal acknowledgment of the issue in later models. - Multiple complaints about post‑service warning ligh

Honda Accord 1.5 TURBO, Head Gasket Blown for the second time in 2 years. The problem has been reproduce by dealer and independent service center. The car shakes when you turn on the car, first indication. Then all warning lights show up on dash board.Emission system Problem, Brake system, Vehicle instability, Adapative cruise control, road departue.

Head Gasket Blown on a 2018 Honda Accord 1.5 Turbo. Yes, yes warning lights have appeared.

This car came with problem and i want to this if honda can fix it for free since its they mistake

Hi I just drive my car for about an 1hr and start losing power and a white smoke coming out the muffle I think the head gasket bad.

The contact owns a 2018 Honda Accord. The contact stated that while driving 30-35 MPH, the vehicle overheated and stalled. Several unknown warning lights were illuminated. The contact pulled over and turned on the hazard lights. The vehicle was taken to the local dealer on three occasions and was diagnosed with a blown head gasket and engine failure. The vehicle was repaired, but the failure recurred. The vehicle was not repaired. The manufacturer was contacted and provided financial assistance. The failure mileage was approximately 70,000.

Vehicle had a sudden loss of power. Pulled over on highway had to restart. Engine warning said Emission system problem. Had diagnostic done several codes PO300,PO301,PO302,PO303,PO304,PO172. Problem seems to be similar to the service bulletin 22-002 dated Feb 18,22 for the Honda Accord 2015-2016. It seems to be a known issue with this engine. Honda should take care of this safety issue.

07/30/25 - Over the course of 1 week, I have received three dashboard warnings "Supplemental Restraint System Problem. See Your Dealer" It goes away once car turns off. Honda of Katy states to bring in when alert still on dashboard (which will disappear when car turned off) but quoted will be required to sign a $215 diagnostic fee. No charge if it is just an error code. But $215 can be used toward repair. This is a SAFETY ISSUE and should be a SAFETY RECALL as owners should not need to pay for manufacturer DEFECTS. I can not afford to fix since still paying off the known issue of fuel injectors failing but not yet SAFETY RECALLED. Please help.

I had been driving down highway and all of a sudden my car put on brakes hard. Thank goodness no one was behind me. I had dealer turn off that feature so it wouldn't happen again. I still experience my brake light flashing when nothing in road to brake for but doesn't brake on its own. Issue having now is issues starting car and once it starts I recieved a collision mediations issue pop-up on display saying see dealer now. Cruise control issue, and on dash has traction control saying ignitionating continue driving. The braking issue started right after purchase in 2018. The starting issue started yesterday 7/25/2025.

Honda has known for years that the 1.5L engines installed in 2018 or newer Honda Accords have issues with oil dilution causing major catastrophic engine failures, head gasket damage, fluids leaking into the cylinders, and costly repairs to cars with less than 86000 miles on them. Honda Corporation needs to address this concern before someone dies when the cars engine fails on the highway. My vehicles engine failed on a major road when I pushed on the gas peddle and had no power due to these concerns. Dealership stated numerous vehicles are coming in with these concerns right now which begs the question that it is not a one off situation but a failure of Honda Corporation.

While attempting to pass a slower vehicle in my 2018 Honda Accord with a 1.5L engine, the suddenly lost power and stalled down to 20 mph while I was alongside the other vehicle. This unexpected power loss put my life and the lives of others at serious life threatening risk. I immediately brought the care to a Honda dealership, where the tech was able to reproduce the issue. The performed a borescope inspection and confirmed that coolant was present inside one of the cylinders, indicating a failed cylinder head gasket. This type of failure should not happen, especially on a vehicle like this. I was the repair would cost $6,500. After researching, I learned that this is a known defect affecting the 1.5L engine and that multiple class action lawsuits have been filed. I also discovered that American Honda is aware of the problem and has instructed dealership service departments to report affected vehicles. In fact, they have even offered gift cards to service advisors who report these cases, but are charging customers for the repairs. That's nonsense. Just do a simple google search and you will discover what I did. During the failure, the check engine light and several other warning lights came on but only the check engine remained on. Since then the car has multiple indicator lights on. Despite multiple attempts to follow-up, the dealership has refused to return my calls. This is a serious life threatening safety concern that deserves immediate investigation. Thank you. Sincerel

Parking brake suddenly engaged while in traffic car would not move. Car had to be towed brake pads were replaced but mechanic stated parking brake had defect that only the dealer can repair.

Car had a rough start one morning. The engine light came on. All safety features were disabled. I took it to the car dealership that same day (sunset Honda San Luis Obispo California) they got back to me and said the car had head gasket failure. The dealership was the only person to do any meaningful mechanical work ( I did the oil changes) including transmission fluid and coolant changes spark plugs, belt sand valve adjustments etc. car is driven lightly as a daily commuter for work

This is regarding TSB 21-087, Warranty Extension for 2018 Accord Paint B-757P Still Night Pearl. I was not informed in writing as per required customer notification in 2001. The extended warranty was for 7 years from date of purchase with no mileage limit. When I noticed the paint peel on the roof seams on the left side and right side of the roof, I asked the local dealership today on 7/25/2025. They said I was a few weeks past the expiration date and I had to contact American Honda. While at the dealership getting maintenance performed, I contacted them via chat and they directed me to call instead. I called Honda and they said once the expiration date has passed, there was nothing to be done. I asked for good will and she declined. They will not provide email of incident, as per my request, from discussion but did open case and assigned a case number. Honda stated my only recourse was to pay for damage out of my pocket or wait to see if Honda will possibly extend the warranty and that it was my responsibility to contact them since they will not provide any notification again. So, my vehicle will continue to rust from the paint peel on the roof on a daily basis in the Florida sun. Or I have the option to pay out of pocket now and, if warranty extension approved request reimbursement.

I was driving around and all of sudden my car dashboard shows the Supplemental Restraint system problem.

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 started about a month ago.

Vibration in car took it to dealership but still can't figure out what's causing to vibrate so much when driving and idling.

The contact owns a 2018 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated, prompting the contact to pull over to the shoulder of the roadway where the failure persisted. The vehicle was taken to the dealer, who diagnosed a failure with the head gasket, resulting in a misfire in cylinder #3. The contact was informed that the head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened for a goodwill assistance claim, and the contact was referred to the NHTSA Hotline for assistance. The contact was later informed that the goodwill assistance request was denied due to a lack of service records with a Honda dealer. The failure mileage was 74,000. The VIN was not available.

The contact owns a 2018 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. The vehicle was taken to a local dealer, where it was diagnosed; however, no cause for the failure was identified. The contact stated that while driving at various speeds, the vehicle jerked abnormally. The vehicle was taken to a local independent mechanic, and it was diagnosed and determined that the core pad needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was made aware of the failure. The failure mileage was approximately 111,000. The VIN was not available.

Driving down the road, no cars or obstacles in front of me. Out of nowhere the automatic emergency breaking came on. The car slammed on the breaks and very quickly came to a complete stop in the middle of the road. If there happened to be another car behind me they would have rear-ended me. There were no warnings prior to this happening.

I was behind another vehicle with the adaptive cruise control on and been following the for some distance at a speed below the cruise control setting. Warning came on for the braking mitigation, cruise control disengaged, vehicle began coasting but did not brake. I continued home driving without any other changes, but warning stayed on. After arriving turned vehicle off and restarted, Warning did not come back on. I have not driven vehicle since. I checked and found other reports of similar problems and am filing this report. Will continue driving with extra caution and report any other occurrences.

Emergency Braking System engaged for no apparent reason with no other vehicles on the road. Potential for rear-end collision. This was the first event. Personally inspected forward looking sensors / camera for blockage, none found. Did not notice any messages or warning during the event. Wasn't looking at the dash during the event.

Engine malfunction. Goes into “limp mode” going over 1800 RPM. Dealer has replaced engine coils and plugs multiple times. Sold as Honda True Used with warranty. Dealer states it’s out of warranty.

The contact owns a 2018 Honda Accord. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the vehicle failed to exceed 10 MPH while driving. In addition, the contact stated when the vehicle was started, several unknown warning lights were illuminated. The vehicle was taken to the dealer where it was diagnosed with head gasket, fuel injectors, and turbo charger failures. The contact was informed that the head gasket, fuel injector, and the turbo charger needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 90,012.

The head gasket on my car blew before 150,000 miles. I had my car repeatedly serviced to include the recall for the fuel tank. I had to replace fuel injectors in a head gasket on this vehicle.

2018 Honda Accord 1.5T EX trim and I had a head gasket completely blown at around 82,600 miles. I, alongside with many many other 1.5T Accord owners, am experiencing this head gasket issue for such a low milage vehicle and it is simply inacceptable and Honda seems to be entirely ignoring this widespread, recurring problem on this engine. Reaching out and file a report in hopes of getting this to Honda's attention so they can address this asap. It has been 7 years since this problem and nothing has changed, which is not okay.

Head gasket blown

Well to start I had to replace my head gasket already last winter at 59K miles and for awhile now I had warning lights on my dash for CMBS system failure and cruise control/steering wheel controls don’t work besides the ones for music. No lane assist, none of those safety features work at all and haven’t for awhile

2/24/2025 Safety Recall work performed at Honda Marin; change Fuel Pump per recall. 4/28/2025 I reported vehicle stalling/misfiring, decelerating on its own and all lights keep coming on as a result of Fuel Pump change. Marin Honda performed cleaning of battery cables; technician claims nothing is wrong with the car. [XXX] car stalled at intersection, I went back to Honda Marin and reported vehicle is still having the same previous issues and complained that this is dangerous to have the car automatically decelerated on its own. This time I requested only for a diagnostic from Honda Marin. They spoke to my mom, who was not authorized to approve any work on my car, stated no blown head gaskets but mis-firing on cylinder 3, fixed the issue, passed pressure test(s), no leaks; and car was up to factory specks costs $2812.77 charged to my mom. 6/03/2025 brought car back to Honda Marin, same issues; service dept. road tested for 4 miles and stated the car was working as normal. 6/11/2025 told Honda Marin that the car is stalling and misfiring again; car shut down while on freeway; Honda Marin claimed problem was a punctured hose, charged $10.34 car up to factory specks. 6/12/2025 Brought car back to Honda Marin; still misfiring, stalling and dash lights coming on. Car will not accelerate past 3000rpm.; car shut down while in far left land on the [XXX] going to Marin County. Honda Marin performed leaked down test failed cylinder #4; blown head gasket; verbal quote approximately $550

Doesn’t run as it should,all lights and warnings show on the dash

July 10th Honda went into limp mode as I accelerated would not drive over 20. Check engine light flashed on then off. Have taken car in several times no codes can be read. Believe it’s cylinder issues or fuel possible head gasket. All vehicle lights has displayed haven’t been able to get reads once car is turned off. Too many issues with no repair fix.

I never was informed about the fuel pump recall , all the lights on my car came on , acceleration was slower , car was jerking , and when taking it to Honda they stated 2 of my cylinders has a misfire and water or coolant leaked and blew my head gasket , the car never ran hot and the guy asked did any light come on and I told him for some old reason every light on the dash was on and the car is vibrating while even in park reverse and when it's moving . I've read up on this and there are numerous of people with this same issue and this should mean something , Honda stated it would cost 6000 to fix when they should have already been warning people of the matter ahead of time . For some odd reason the car would just drive 10mph when I am driving jumping out in traffic having to pull over and restart the car . Guy at Honda even stated fuel pump could have been the issue and they have witness this with other cars like mine

The contact owns a 2018 Honda Accord. The contact stated while at an undisclosed speed, the Supplemental Restraint System (SRS) message was displayed. The contact stated that the message was displayed at start up and remained displayed until the vehicle was turned off. The vehicle was not diagnosed or repaired. Upon further investigation, the contact became aware that the SRS message warned about a failure with the safety features designed to protect occupants during an accident. The manufacturer was not notified of the failure. The failure mileage was approximately 94,000.

There are 10 warning lights currently on the dash. This is and has been an ongoing issue for over a year. Turning off the car then turning it back on the lights would go away. The car would periodically start to slow on its own while foot was still on the gas pedal which was dangerous in the middle of traffic or going 65 to 70 miles per hour on a highway. December 31, 2024 my car got towed to the Honda Dealership because the car stalled and wouldn't go past 15 miles per hour. Again the dash lit up. It was my understanding that it was because of the latest recall of the fuel pump issue that took over a year to be completed. The recall of the fuel pump was done January 6, 2025which took a week to complete and a week of work I missed with no available loaner car available to me. Once I got the car back the lights were not on the dash anymore but within 5 minutes of driving the car the lights came back on but the car did not stall and was able to go past the 15 miles per hour that was the original problem. Since January 2025 I have been dealing with these warning indicator lights and being the lights were on when Honda received the car to perform the recall I would assume a diagnosis would have been done but once I got the receipt there was no other issues recorded that was wrong with the car. There are absolutely too many Honda Accords with this problem. I've read everything from moisture in the tail lights triggering the lights, faulty battery, head gaskets, injectors to spark

All lights on dash are on at the same time

The contact owns a 2018 Honda Accord. The contact stated that while driving 70 MPH, the vehicle jerked and failed to accelerate as intended while depressing the accelerator pedal, with several unknown warning lights illuminated. The contact stated that on a separate occasion, while driving 70 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal and the vehicle stalled. The contact was able to coast to the side of the road. The vehicle was restarted after several attempts. The vehicle was taken to the dealer; however, no cause for the failure was found. The contact stated that prior to the recent failure the vehicle was repaired under NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline). However, the failure persisted. The vehicle was not repaired due to the cost. The contact was informed that some of the failures were not related to the recall. The manufacturer was not made aware of the failure. The failure mileage was unknown.

I went to enter the highway and the car would not accelerate and the check engine light was flashing and went into a limp mode. I got it looked at it it was giving me the misfire code for cylinder 2. I paid over $1k and had all the spark plugs replaced and coils. It was fine and then 6 days later it happened again. The mechanic looked at it pressurized with the bore scope and saw coolant. Then we knew it was the head gasket. This is crazy especially with Hondas being known for reliability. I’m at 87k miles and have been seeing that this happening to many others.

Dashboard lit up with a lot of lights and stuff

Unknown

Every light on my dashboard came on out the blue while driving.

The speech issues

Turbo underboost condition