What 340 owners told NHTSA about the 2020 Honda Accord Fhev

The contact owns a 2020 Honda Accord. The contact stated that while operating the vehicle, the brakes had erroneously activated, causing the vehicle the suddenly decelerate. During the failure, the "BRAKE" light was flashing. The vehicle was taken to the local dealer who was unable to determine the cause of the failure. The contact was made aware of NHTSA Action Number: EA24002 (FORWARD COLLISION AVOIDANCE). The contact stated that the vehicle had experienced the failure listed in the investigation. Additionally, after starting the vehicle and driving forward or in reverse, there was a squeaking sound coming from the rear of the vehicle. The vehicle was taken to the local dealer who was unable to determine the cause of the failure, and informed the contact that the failure was a common issue, but the manufacturer had not issued a service campaign to address the issue. The failure mileage was 30,000.

NHTSA ODI 11663113

Multiple warning lights on the dashboard come on and stay on including but not limited to check engine light, abs, break lights ect…

NHTSA ODI 11662476

False alarms (several hundred) with audio and visual warnings but no braking. ONE instance of false alarm WITH emergency braking from 55mph to under 30mph. I do not recall a false warning happening after sundown, ever. Alarms have occurred on bright days with sharp shadows, and overcast with no shadows. There always seems to be a solid overhead object being approached, overpass, railway trestle, solid bar supporting a traffic light. This is highly intermittent where alarms occurred 3 in a week, to 1 in a span of two months. The two constants I have noted are it happens during daylight hours and a substantial overhead object or structure is being approached. Alarms have been occurring since 2021 when i bought the car new off the lot.

NHTSA ODI 11661740

Seat weight sensor failure resuling in the illumination of the SRS warning indicator

NHTSA ODI 11661387

THE AIR BAG LIGHT HAS BEEN COMING ON AND OFF SAYING THAT I NEED TO TAKE IT BY THE DEALER FOR THEM TO FIX IT. WENT BY THERE MONDAY THEY CLEARED CODE AND THEN IT CAME BACK ON MONDAY EVENING. DROPPED IT OFF THIS MORNING AND THEY SAID IT GONNA COST OVER 300$. THERE IS A RECALL ON THIS BUT MY VIN DID NOT SHOW UP. BUT IT STILL COULD BE AFFECTED

NHTSA ODI 11661172

The Honda Infotainment system, does not respond to touch, and randomly changes screens as if someone is pushing buttons. It randomly switches to the phone, contacts, music, Bluetooth connection, and navigation. When using navigation it moves the map and brings up routes. This can cause significant distractions to the driver. Multiple individuals have reported this issue to the dealer.

NHTSA ODI 11661036

The vehicle would stop accelerating despite still applying pressure to the gas pedal. Feeling as if no field was being allowed to flow through.

NHTSA ODI 11660795

- Component/System failure/malfunction: ADAS. Specifically, CMBS and/or ACC. - My car has repeatedly experienced unexpected braking events, rapidly bringing me to nearly a complete stop in the highway. During this time, I have no ability to control the speed of my vehicle. This has been occurring during my ~70 mile commute on I-675, I-75, and I-275. - Despite having the car on multiple occasions and for over a week collectively, the issue has not been replicated by the dealer. - The vehicle has not been inspected by the manufacturer, police, insurance representatives, or others to date. The Honda dealer has not initiated any further inspection. - During these failures, the car has (often) been braking without due reason or any alert to the driver. No system malfunction was found (either shown to driver or in computer log, as verified by dealer). Please review attached document for further details regarding the incident(s). This copy has been presented to Honda and the Ohio Attorney General.

NHTSA ODI 11660567

Subject: Turbocharger Underboost – Safety Concern on 2020 Honda Accord EX-L I am reporting a serious safety issue with the turbocharger system on my 2020 Honda Accord EX-L with the 1.5L turbocharged engine. The vehicle has repeatedly triggered Diagnostic Trouble Code P0299 (Turbocharger Underboost), indicating the turbocharger is failing to generate sufficient boost. As a result, the vehicle suffers from sudden loss of power, especially during acceleration and highway merging. This power loss occurs without warning and severely impacts my ability to drive safely in traffic, increasing the risk of accidents. There are currently no recalls or manufacturer advisories addressing this issue, despite numerous online reports from other Honda owners with the same engine and problem. This suggests a possible design flaw or premature component failure in the turbocharging system. Given the frequency of this issue and its impact on vehicle safety, I am requesting that NHTSA investigate this matter and consider whether a recall or manufacturer service campaign is necessary. Symptoms include: •Sudden engine power loss •Error code P0299 •Inability to accelerate safely •Safety risk during lane changes and merges First occurrence: April 20, 2025 Ongoing issue: Yes Mileage at first occurrence: 111, 000 Crash or injury: No Thank you for your attention to this matter

NHTSA ODI 11658809

Just like the 2018 Accord in Still Night Pearl (addressed in TSB 21-087), the paint has peeled and failed on the roof line by the rear glass. Called Honda, they don't care to address ANY vehicles with this KNOWN paint defect any longer. Now we have to pay thousands of dollars out of pocket to get it resolved or the steel will start to rust. Will NEVER purchase a Honda ever again.

NHTSA ODI 11658398

Car reached 113,000 miles and started having misfires in cylinders 1&2. After being told it needed new coil packs and spark plugs, and replacing those it is still misfiring. Paid for diagnostic again and was told cylinder 1&2 were wet and most likely it was the head gasket failing.

NHTSA ODI 11655980

Starting sconce July the car will vibrate at random times and will hesitate and buck while car will vibrate and not want to move have brought the car back to the dealership over 4 times now and they can not find any issues despite me having videos and any information I can gather since July if 2024

NHTSA ODI 11655665

I had an appointment today (4/18/2025) at Causeway Honda in Manahawkin, NJ to remedy the recall of the 2020 Honda Accord seat weight sensor circuit board. When I got there Amanda from the service department said they cannot fix the issue because Honda will not pay for it. She said that they are only fixing cars that has an SRS indicator illuminated on the display panel.

NHTSA ODI 11655363

•Alleged Defect:
The defect is described as the engines' inability to handle the increased heat and compression of a turbocharger, causing coolant leakage and damage to the engine's head gasket. 




NHTSA ODI 11655368

The car brake by itself with no obstacles in the way

NHTSA ODI 11654339

Mechanic said there was a fault in the hi pressure fuel injectors that’s causing the engine to run rich

NHTSA ODI 11654084

Detailed Statement of Defect and Manufacturer’s Acknowledgment – Honda Fuel Pump Recall (2017–2020 Acura and Honda Models) Overview of Recall: On December 21, 2023, American Honda Motor Co., Inc. publicly announced a voluntary safety recall affecting approximately 2.6 million Acura and Honda vehicles in the United States from model years 2017 through 2020. This large-scale recall concerns a critical defect in the fuel pump system that has the potential to cause engine stalling while the vehicle is in motion, posing a serious safety risk. Technical Description of the Defect: The issue stems from an improperly molded fuel pump impeller—a component responsible for fuel delivery within the pump. The molding defect results in the production of low-density impellers that are prone to deformation. Over time, these impellers can degrade and interfere with the fuel pump body, ultimately rendering the fuel pump inoperative. Should the fuel pump module fail during vehicle operation, the engine may not start or could stall without warning, which significantly increases the risk of a crash or injury due to the sudden loss of engine power, particularly at high speeds or in heavy traffic conditions. Manufacturer’s Response and Limitations: Honda has stated that it will replace the affected fuel pump modules free of charge, and claims that no crashes or injuries have been reported at the time of the announcement. However, it is critical to note: •Countermeasure replacement parts are currently unavailable in sufficient quantities to address all recalled vehicles simultaneously. •Honda plans to notify vehicle owners in stages, with initial notifications to begin in early February 2024, followed by additional notices as parts become available. •This delay in availability and communication may expose vehicle owners to ongoing safety risks without immediate remedy. Legal and Consumer Impact Considerations: While Honda has initiated recall efforts, the scope and severity o

NHTSA ODI 11653647

This notification continues to pop up on my screen and when going to the dealer they are stating that my VIN number is not effected but I continue to get this notification. Safety is put to risk when the airbag is turned off while driving in the event of something terrible happening. We are not protected. The Dealer will not inspect this without having to pay out of pocket for a diagnostic.

NHTSA ODI 11653130

CMBS not working properly. The car automatically brakes without any collision risk even on a clear road with no traffic and clear weather. Have a huge risk of someone crashing the car from the rear due to immediate braking. This issue has appeared several times.

NHTSA ODI 11653041

Supplemental Restraint System Issue warning light illuminated on dash board. Immediately took to dealer and dealer diagnosed to be bad air bag sensor. No prior warning lights have been noticed

NHTSA ODI 11652590

When setting something on my passenger seat such as a water bottle filled with water and a purse, the SRS light is triggered on the dashboard. After doing some research there was a safety recall for the passenger weight sensor on my vehicle model however my vin was not included.

NHTSA ODI 11651970

High pressure fuel pump Yes almost caused an accident Vehicle was inspection and replaced No warning at all just lost power and all lights came on the dash. I was traveling in left lane down the highway lost power had to cross 3 lanes to get right side of shoulder. I shut off the car when I stop on the shoulder . I inspected the car for sign of low oil or coolant I didn't see any reason I lost power without any notice . I started the car again on the shoulder and I could only drive 17miles per hour and couldn't go over 2000rpms or the car would spudder and jerk.

NHTSA ODI 11651217

My car is well taken care of but about 2 months ago the SRS light started to come on out of no where. It randomly comes on and most the time turns off after turning my car off and back on. Sometimes it doesn’t come off and sometimes it’s off for weeks before coming back on. Again, my car is not altered in any way or has never been in any accident. Car has 50k miles and I bought it from the dealership. I do not trust the dealership I bought it from because when there was a another recall for something with the gas pump, my car literally shut down on me and they took three days to repair something that only takes five minutes because they stated they needed to diagnose it, but I knew exactly what it was and they still did not listen to me

NHTSA ODI 11650056

What component or system failed or malfunctioned, and is it available for inspection upon request? THE SRS LIGHT IS GOING OFF AND READING "SUPPLEMENTAL RESTRAINT SYSTEM PROBLEM. SEE YOUR DEALER". How was your safety or the safety of others put at risk? THE AIRBAGS ON MY PASSENGER SEAT Has the problem been reproduced or confirmed by a dealer or independent service center? YES, THERE IS A RECALL ON THE EXACT ISSUE, BUT THEY ARE TELLING ME THAT MY VEHICLE IS NOT INCLUDED IN THE RECALL. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? IT WAS INSPECTED BY HONDA OF LINCOLN. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? YES. JANUARY 28, 2025, I GOT IN MY CAR AND THE SRS LIGHT WAS GOING OFF. I TOOK MY CAR IN TO BE SEEN BY HONDA OF LINCOLN, AND THEY ARE REPORTING THE SRS DEVICE NEEDS TO BE REPLACED. THOUGH THERE IS A OPEN RECALL. I AM BEING TOLD MY VEHICLE IS NOT INCLUDED IN THE RECALL.

NHTSA ODI 11650110

This engine has been so poorly designed it leaks coolant Into the engine system. I am extremely frustrated and disgusted with the dealership and Honda for knowing these engines are defective yet still producing/selling them. We pay hard earned money for something so unreliable it’s actually insane. I don’t want to be nasty about it but someone needs to say something.

NHTSA ODI 11648230