What 1,812 owners told NHTSA about the 2018 Honda Accord Fhev

While trying to accelerate the car loses power. This has happened many times. The Honda dealership has said the system is on back order and they will call me when it’s available. It’s been months. The “jerks”a few times then the check engine light comes on then the car loses power. The dashboard lights are brake system, emission system, electric power steering, hill assist and ACC system problem.

NHTSA ODI 11685803

- Year: 2018 - Make: Honda - Model: Accord Sport 1.5 Turbo - Vehicle Identification Number : [XXX] I am writing to report a safety concern with my 2018 Honda Accord Sport 1.5 Turbo. The vehicle has developed a head gasket problem, which has resulted in significant engine issues. Additionally, I have experienced fuel injector problems, leading to decreased fuel efficiency and rough engine performance. Despite following the recommended maintenance schedule and addressing the issues with the dealer, the problems persist. I have been quoted $7,800 for repairs, which is unacceptable given the vehicle's age and mileage (currently 114,848 miles). I am concerned about the safety and reliability of the vehicle, especially when driving on the highway. The vehicle's blown head gasket has caused ¹: - Loss of power, leading to potential safety issues on the road - Engine hesitation and shutdown while driving, which can increase the risk of accidents I request that NHTSA investigate this matter further and take necessary actions to address the recurring issues with the 2018 Honda Accord 1.5 Turbo engine. I would appreciate guidance on potential next steps to resolve this issue and ensure the vehicle's safety and reliability. - Repair estimates and records from the dealer - Maintenance records, including oil changes and fuel system cleanings - Correspondence with Honda dealership and corporate office Other owners have reported similar issues with the 2018 Honda Accord 1.5 Turbo, including fuel injector problems and blown head gaskets ² ³ ⁴. Please Help us. Investigate this issue and help us the consumers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11685407

Condensor leak and compressor not working. Condensor replaced under Honda service bulletin but compressor not holding pressure.

NHTSA ODI 11681604

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 lights that match this scenario (electrical system category), and public news coverage stating Honda is recalling vehicles due to faulty passenger seat sensors that may cause airbag or SRS failures. - 37 official complaints for the 2018 Accord, with no repair by dealer and failure left unresolved. One report (May 12, 2025) describes this exact issue saying the dashboard message randomly popped up and a "dealer wanted $250 diagnostic and $4,000 to repair. - My service quote attached. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11678803

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

NHTSA ODI 11678405

Head gasket blown

NHTSA ODI 11673526

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

NHTSA ODI 11673194

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 plugs. My car is no longer under a warranty and I have no means of paying for a guessing game when it comes to diagnosing the real problem with these cars. People are paying $5000 sometimes more and still having the same problem once they drive away. I honestly think a recall on this issue need to happen before something tragic happens. Maybe because it took over a year for Honda to get parts in to fix the recall fuel pump issue this is an exact result of going so long with the faulty fuel pump.

NHTSA ODI 11672961

all lights on dash are on at the same time

NHTSA ODI 11672474

Dashboard lit up with a lot of lights and stuff

NHTSA ODI 11671394

All lights in dash is on took it to honda they playing a guessing game injectors head gasket sensors they really don’t know many people are complaining with the same problems

NHTSA ODI 11671285

My 2018 Honda Accord has become unsafe to drive. The car will not go over 15 mph, all the warning lights on the dashboard are on, and the engine and transmission feel shaky. The entire car shakes when I try to drive it, and it seems like multiple systems are failing at once. This happened suddenly and has made the car undriveable. My safety was put at risk because the loss of power happened while I was on the road. The problem has been looked at by my independent mechanic, but it has not been resolved. The vehicle is available for inspection.

NHTSA ODI 11667500

The door locks are unresponsive using both the fob and the vehicle controls. The problem started with a rear door not locking or unlocking when the other doors would lock. Eventually all doors became unresponsive. The doors now require me to manually lock each and use my fob key to unlock the driver door and manually unlock each door. I've replaced fuses to try to resolve the issue with no luck. It seems that the door lock actuators failed prematurely.

NHTSA ODI 11666343

This is about the 5th time this has happened to the car. All warning lights appeared spontaneously while driving. The lights would turn off if the car was turned off for a long period of time or is we disconnected battery for a long period of time. We have tried to research the problem and no one seems to know what the cause or permanent fix is.

NHTSA ODI 11666406

My locks failed and it took several repairs and they are still not working properly. I fear for my safety and the safety of my children. Honda told me sometimes locks just don’t work but that’s not appropriate to me as I paid the extended electric warranty but they cannot fix them. No knowing this will not go all through the life of my vehicle is a big issue.

NHTSA ODI 11666190

The contact's wife owns a 2018 Honda Accord. The contact stated that while his wife was driving at various speeds, several unknown warning lights were illuminated. The contact stated that the warning lights were illuminated constantly. The vehicle was taken to a local dealer, where it was diagnosed and determined that the fuel system was contaminated with water. The contact stated that the dealer replaced the spark plugs and flushed the fuel system; however, the failure recurred while driving. Additionally, the contact stated that the cruise control mode was no longer functional. The vehicle was taken back to the same dealer, where the contact was informed that further diagnostic testing was needed to determine the cause of the failure. The vehicle was not repaired. The manufacturer was informed of the failure, but the contact had not received a call back. The failure mileage was approximately 66,000.

NHTSA ODI 11662577

Engine keep going into limp every now and then and it’s pretty dangerous especially while driving on the highway. All the lights would come on the dashboard. On May 2 it almost cause an accident because it happened while I was driving on the freeway and I’ve changed spark plugs, injector my battery and it’s happening

NHTSA ODI 11660168

Scanned for codes. Found P0303, P0299, and P2243 stored. Found coolant entering cylinder 3. Found excessive play in the waste gate rod and found A/F sensor is not responding. Needs head gasket. Vehicle starts up and runs rough. All alerts on alerts on dash on cust states check engine light on. Honda sensing alerts on.

NHTSA ODI 11655914

The collision mitigation braking system is engaging while I’m driving with no obstructions in front of me. The car slows down completely while I’m on the highway almost coming to a complete stop. This has happened numerous times since Dec 2024. I took it into Honda and they did absolutely nothing besides charge me over $500 for diagnostic fees and told me to get an oem battery and bring it back to be inspected again.

NHTSA ODI 11655501

The contact owns a 2018 Honda Accord. The contact stated while driving at an undisclosed speed, the vehicle stalled and shuddered. The contact stated that several unknown warning lights were intermittently illuminated. The failure had occurred on several occasions. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the spark plugs, and air filters needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was not notified of the failure. The failure mileage was approximately 35,000.

NHTSA ODI 11655531

Warning lights come all across the dash stating to see the dealer. I have taken it to the dealership and the issue is the fuel injector that causes the warning lights to go off and on at random. I still have a warranty of my car and was told the warranty does not cover that part. This is happening to a lot of honda accords but there is no recall for it. There is a safety issue for driving because they stay on and then go off and come back on again. This is unfortunate and unacceptable from Honda as a whole. I bought the car in May 2024 and the warning lights came on a week later and have been ever since off and on.

NHTSA ODI 11654917

I recently took my car to the dealer because I have multiple messages on my dashboard saying please see dealer dealing with my brake system, electric power steering, vehicle ability assist, collision mitigation system problem, etc the dealers don’t know what’s going on with it. I recently had service done on it because of the recall with the fuel pump and even before that those messages were showing up.

NHTSA ODI 11649923

The components and systems that are failing and malfunctioning in my 2018 Honda Accord are the engine, head gasket, fuel, injectors and turbo. While in motion, the car jerks and has issues with acceleration requiring the safety hazard lights to be come on and I’m unable to keep up with marked speed limit while traveling due to the sluggishness of the vehicle. The majority of these issues have been confirmed by a Honda dealership as well as another car shop. There are several warning and safety hazard lights that come on and go off the dashboard. Many times, I have to pull on the side of the road due to not being able to drive this vehicle.

NHTSA ODI 11647526

Rear camera is showing a blank screen. Gridlines are visible but that’s it. It’s hard to see to backup so I’m afraid of a collision. There are recalls on other Honda accords but my VIN has not been included for this repair. No other warning lights are on.

NHTSA ODI 11645944

The contact owns a 2018 Honda Accord. The contact stated that after starting the vehicle, several unknown warning lights were illuminated. The contact stated the turn signal lights, the trunk, the Lane Departure, Forward Collision Avoidance, and the LKAS failed to be displayed on the instrument panel. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 20V771000 (ELECTRICAL SYSTEM, BACK OVER PREVENTION, VISIBILITY/WIPER, VISIBILITY, EXTERIOR LIGHTING); however, the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 133,000.

NHTSA ODI 11643793