2020 Honda Accord Hybrid Problems

WHEN USE RIGHT TURN SIGNAL, AUDIO [RADIO] CUTS OUT. WE REPORTED IT TO THE DEALER IN [XXX], THEY COULD NOT DUPLICATE THE PROBLEM. INTERMITTENT PROBLEM [XXX]- USE RIGHT TURN SIGNAL, RADIO CUTS OUT. HONDA DEALER REPLACED ELECTRICAL HARNESS WHILE STILL UNDER WARRANTY [XXX] - SAME PROBLEM - USE RIGHT TURN SIGNAL, RADIO CUTS OUT. HONDA DEALER REPAIRED ELECTRICAL HARNESS - no longer under warranty. DEALER CHARGE $190 INSPECTION FEE [XXX]- SAME PROBLEM - USE RIGHT TURN SIGNAL, RADIO CUTS OUT. - no longer under warranty. DEALER CHARGE $190 INSPECTION FEE - DEALER WANTED $3212 TO REPAIR 6/13/25- CALLED AMERICAN HONDA CORP. Spoke with [XXX] 800-382-2238, Case#[XXX}. 9/15/25- After MONTHS of emails/ documentation of repair bills/ phone calls , AMERICAN HONDA CORPORATION REFUSES TO PAY FOR ENTIRE $3212 REPAIR BILL. TOLD US TO PAY $1000 TOWARDS THIS REPEATED ELECTRICAL PROBLEM. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am reporting a potential safety issue with my 2020 Honda Accord Touring Hybrid. On September 4, 2025, my dealership identified a non-genuine purple quick-splice connector in the driver’s door harness, which they attribute to error codes B1142 (Driver’s Door Lock Knob Switch Circuit), U0199 (Lost Communication with Driver’s Door Module), and U3003-16 (Electric Servo Brake Control Unit Power Source Low Voltage). This connector, not installed by the recent audio installer who put only upgraded speakers and deemed non-Honda, may be an aftermarket modification (possibly an alarm/tracker or anti-theft device) causing electrical faults. While no water was found, the issue could impact brake assist (U3003-16), posing a safety risk. I request NHTSA investigate whether this reflects a widespread manufacturing or modification defect, especially given reports of similar quick-splices at dealerships for repos or fleet locking. A Reddit user said, “ We see these at our dealer frequently. Those are quick-splices, usually used to piggyback off your oem wires to supply voltage/signals to an aftermarket alarm/tracker. Other dealerships install this in the event of repos/auto locking an entire fleet/or additional anti-theft.”

When picking up speed, the steering wheel is difficult to turn. And not working line keep Assistance. U0416 code in ecu (eps). No any errors on dashboard.

The Collision Avoidance system activated twice for no reason. Inspection is available. I and my passenger were jerked by the rapid stop & could have been rear ended if anyone was behind me. The second event was in an intersection when I and the driver behind me were driving slowly. if the car behind wasn't alert, he or she could have collided with me. No one was travelling in front of me and yet the brake suddenly engaged. The dealership rep. did not confirm the problem after driving it 5 minutes. There were no warning lamps, messages, or symptoms before the brake engaged in both instances.

Without driver intervention, the vehicle engaged the brakes. Threw both passengers forward until the seat belt restraints engaged. Bruising both passengers shoulders. The vehicle would not respond to either pedal - brake or gas for a few seconds. There was no visible traffic in front of us. The day was clear. And no construction or overpasses. The vehicle was taken into a certified Honda dealer and inspected. No “flags” or diagnostic issues found. The car was driven by the dealer. The issue wouldn’t reproduce. The dealer stated that they did find a large “smashed” bug on one sensor and wondered if it could have caused the issue. Prior to the vehicle initiating the panic stop, no indications of a event were posted on any device in the vehicle

I was driving yesterday accordingly to the speed limit on a main city street. There were no cars in front of me AT ALL when all of a sudden my car hit the breaks 3 times back to back out of nowhere causing my car to swerve! I felt completely out of control of my vehicle and I am so thankful I wasn't on the highway and that no one was near me! I first noticed issues with the breaking system, previously on 3 other occasions throughout my time of owning/leasing the vehicle. 3 other occasions before receiving an alert on the screen that read "the brake system has a problem. Avoid high speeds and sudden braking. Have your vehicle checked by a dealer immediately." That was February 13, 2022. I called immediately to take my car in and was told I would have to pay out of pocket to have this issue addressed which seems outrageous to me since it is something that I have no control over. So without the ability to pay such a high fee for a vehicle that I thought would keep me safe, I took it to a local auto shop and had my brakes checked while I had my routine maintenance done. I was told everything was fine, which in my opinion indicates it is at fault of the manufacturers.. I don't want to die before something is done. There have been many claims about the same thing happening. I'm truly shocked there hasn't been a recall due to this issue.

The engine failed catastrophically. White smoke out of the exhaust at 145,000 miles. Dealer checked out the car and they initially though it was a head gasket failure. After taking the engine head off, it turns out it was a 'structural defect' (verbatim words from the mechanic), which was a divot in the engine block. The head gasket was in great shape. Therefore, I needed a 'new' used engine (at $9K) instead of a head gasket replacement (at $4K). A search on the internet shows that forums (driveaccord.net, facebook groups) shows that many Honda Accord owners have similar head gasket failures. I contacted Honda USA and they said there's no recall so I won't get reimbursed.

Five times the past year, while driving on the freeway, the first incident I cannot remember, but I do know that the other four incidents were on a slight incline. The car acted as if it wasn’t getting enough gas and slowed down and was shaking. Giving gas would not help, and it kept slowing down. The check engine light would come on and once I turned off the car and turned it back on, the car acted normal again. Sometimes I had to keep it turned off at least a minute before it would run normal again. I took it to the dealership twice and both times I was told that because the engine light was not on, they did not know what was wrong. I asked if they could check the computer to look for faults, and they said that is a waste of time because not only would I have to pay for the service,but they could guarantee that faults will not be found so it would be a waste of my money. The fact that this has happened so many times., once every a few months, and the fact that there has been similar problems on other models/years, I would like to report that I think it also has to do with my model and year. While filling out this report, it only showed that it was a 2020 Honda Accord and did not include the fact that it is a hybrid if that makes a difference. My car is a 2020 Honda Accord hybrid. Last incident was this past Saturday. August 9, 2025. This was the worst incident due to it took longer to correct itself and took three tries.

The contact owns a 2020 Honda Accord. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. Parts distribution disconnect.

Power system error and warning lights pop up or off no were

THE PAINT IS DEFECTIVE , THE CLEAR COAT IS PEELING OFF A LOT OF SCRATCHES ALL OVER THE BODY OF THE VEHICLE IN MANY PLACES .THE IS 2020 AND HAS LESS THAN 1400 MILES.ABOUT 6 MONTHS OLD GARAGE KEPT .

TL* THE CONTACT OWNS A 2020 HONDA ACCORD HYBRID. THE CONTACT STATED WHILE DRIVING 55 MPH, THE CONTACT STATED THAT AN ACOUSTICALLY DRIVEN DRONE SOUND WAS COMING FROM FRONT DRIVER'S SIDE OF THE VEHICLE. THE CONTACT STATED THAT THE SOUND BECAME LOUD ENOUGH PREVENTING COMMUNICATION BETWEEN THE VEHICLE PASSENGERS. THE VEHICLE WAS TAKEN TO CMA'S VALLEY HONDA (296 LEE JACKSON HWY, STAUNTON, VA 24401, (540) 213-9000) HOWEVER, THE VEHICLE WAS NOT DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF FAILURE. THE CONTACT HAD NOT YET RECEIVED A RESPONSE FROM THE MANUFACTURER. THE FAILURE MILEAGE WAS APPROXIMATELY 8,000.

Power system error and warning lights pop up or off no were

The contact's client owns a 2020 Honda Accord. The contact stated that while his client was driving at about 45 MPH, the vehicle inadvertently accelerated on his own, drove off the road and drove down in a steep embankment, hit 8-9 fence posts, ramped up over the driveway of the embankment, and crashed into a tree. The contact did not know whether the air bags deployed. The contact's client sustained severe injuries including broken bones. The contact's little brother who was in a forward-facing child seat in the rear driver's side seat was pronounced dead at the scene. A police report was filed. The contact's client and her brother were transported to the hospital by emergency services. The vehicle was towed to a garage where it was totaled. The dealer and manufacturer were not notified of the failure. The failure mileage was unknown.

When picking up speed, the steering wheel is difficult to turn. And not working line keep Assistance. U0416 code in ecu (eps). No any errors on dashboard.

1. THE APPLE CAR PLAY FREEZES WITH THE ORIGINAL APPLE LIGHTNING CABLE 2. THE DRIVER'S DOOR CLOSES WORSE THAN THE PASSENGER DOOR. I HAVE TO PUSH THE DRIVER'S DOOR MUCH HARDER TO CLOSE IT. 3. THE ISSUE WITH THE AIR CONDITIONER. I'M USING AUTO 72 DEGREES AND DON'T LIKE TO PLAY WITH THE AC. 30-40 MINUTES AFTER WARMING UP THE CAR, THE AIR FROM THE LEFT AND RIGHT FRONT GRILLES BEGINS TO BLOW WITH COLD AIR, I FEEL COLD AIR ON MY KNEES. IF I MANUALLY CHANGE THE DIRECTION OF THE AIR ONLY TO THE FACE, THEN THE AIR IS BLOWING WARM. IF I RETURN THE AIR CONDITIONER TO AUTOMATIC MODE, I FEEL COLD AIR AGAIN FROM THE LEFT AND RIGHT FRONT GIRLS. 4. STILL HEAR LONG LOUD HUMMING SOUND WHILE DRIVING ON HIGHWAY 53 MPH FROM THE FRONT DOORS SPEAKERS I ASSUME, AND SHORT LOUD HUMMING SOUND WHILE DRIVING IN CITY AROUND 28-29 MPH. I SUPPOSE THE ACTIVE NOISE CANCELLATION SYSTEM WORKING NOT PROPERLY.

Overnight while parked in the garage, the front windshield became cracked without signs of impact. The next night before I had even had the chance to bring it in for a scheduled inspection at the dealership, the crack spidered out to cover almost 15-20% of the windshield. When I took it into for inspection at the dealership, they also mentioned that it looked like there was no impact and the crack was internal to the glass. They agreed that it looked like the same situation as described in Honda TSB 20-118, but said that it could not be covered because it wasnt in the identified VIN range even though it looked like a similar situation described in the TSB.

WHILE ON MOTION ON A STATE HIGHWAY MINOR DEBRIS FROM THE ROADWAY THAT HITS THE WINDSHIELD OFTEN CREATES SMALL NICKS ON THE WINDSHIELD THAT COLLECTIVELY IMPAIR VISIBILITY. IT APPEARS THAT THERE IS AN EXCESSIVE AMOUNT OF WINDOW NICKS AND CHIPS.