2023 Honda Accord Engine Problems

While driving my 2023 Honda Accord Hybrid, the vehicle suddenly displayed multiple warning messages, including a Check Engine Light, and immediately entered limp mode. Engine power was significantly reduced, making it difficult to accelerate and safely keep up with surrounding traffic. This unexpected loss of power created a potential safety hazard because the vehicle could not respond normally to throttle input. The vehicle was diagnosed by an authorized Honda dealership. The dealer confirmed Diagnostic Trouble Code (DTC) P2101 and determined that the throttle body assembly had failed. The throttle body assembly and gasket were replaced, and a software update was also performed before the vehicle could be safely driven again. I paid approximately $670.34 for the repair at the Honda dealership. After researching this issue, I found reports from other owners of recent Honda Accord Hybrid vehicles experiencing similar P2101 throttle body failures resulting in limp mode. I am submitting this complaint because an unexpected throttle body failure that causes a vehicle to enter limp mode while driving may present a safety risk, especially if it occurs in traffic or during highway driving. I believe this issue should be reviewed to determine whether it affects additional vehicles.

NHTSA ID

11751783

Incident

Jul 2, 2026

There were no warning lamps or messages prior to the failure. My family was out of town, when the fire occurred. However, the neighbors were home and their home also sustained some damage. My home was a total loss. On June 16, 2026 I received a call while out of town that my home was on fire and it was a total loss. Statements from the neighbors and fire marshal were that the garage was on fire and then spread to the rest of the home. The only thing in the garage that could have started the fire was my Hybrid vehicle.

NHTSA ID

11746370

Incident

Jun 16, 2026

My car started blinking the Check engine light when I am going 40-50 mph. Got the vehicle scanned and the code showed “misfire cylinder 4” so i replaced the spark plugs and the coil on cylinder 4. Vehicle ran fine for about 3 weeks. Same issue happened again. I did research and found that alot of honda vehicles with the 1.5 turbo has had head gasket issues. I took it to a mechanic and got it diagnosed. There was no coolant when they checked as well as put the camera down cylinder 4 and seen fluids in the cylinder

NHTSA ID

11738206

Incident

Apr 12, 2026

MY CAR HAS A HOLE IN THE MOTOR, THE THROW ROD SHOT OUT OF IT. THE DEALERSHIP CLASSIC HONDA REFUSED TO DO ANY REAL INVESTIGATION AND IS RELYING SOLELY ON THE DIPSTICK READING. THIS CLEARLY VIOLATES ME IN PLENTY OF WAYS THIS IS WHAT I SENT THEM. I am formally escalating this matter and requesting immediate supervisory review and intervention regarding the inspection and handling of my 2023 Honda Accord Hybrid. The dealership is relying solely on a dipstick reading taken from an engine with a breached engine block. Once the engine block is compromised, the crankcase is no longer sealed, and oil redistributes into different internal cavities and passages. Under these conditions, a dipstick reading is not a reliable or valid method to determine pre-failure oil quantity or causation. I specifically requested that the oil pan drain plug be removed so the oil could be measured directly, which would provide an accurate and objective assessment of oil quantity. This request was refused. I was told, verbatim, that the dealership would not touch the vehicle any further. This refusal to perform a basic, non-destructive verification step, while continuing to rely on an unreliable post-failure dipstick reading, is not consistent with proper diagnostic procedure or good-faith warranty investigation. At this point, I am requesting: Immediate supervisory review of this case Assignment of a qualified Honda representative or supervisor to oversee a proper inspection Documentation explaining why a direct oil measurement was refused Confirmation that the vehicle and all components remain preserved for further review I am not asking for speculation or opinion. I am requesting a proper, objective, and technically sound investigation. Please treat this as a formal escalation request. I am prepared to pursue arbitration and further remedies if this matter continues to be handled without appropriate diagnostic standards. I request a response within 48 hours. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF

NHTSA ID

11715311

Incident

Dec 22, 2025

VALVE COVER GASKET LEAK

NHTSA ID

11703469

Incident

Dec 6, 2025

Started the car and the system was not booting up Properly. Had to restart the car a few times for the system to boot up properly. Took 3 min to start up after restarting the car. No error codes just major lag and delay. Car was updated to the most current update and no new updates were available at the moment. Bluetooth also has a hard time connecting to mobile devices. Engine makes weird sound when accelerating on the highway in eco mode. Sometimes feels like misfires when accelerating. When entering the car from outside the seat sometimes does not adjust back to the original position stays at the extended position it does when getting out of the car. Requires me to adjust my seat consistently.

NHTSA ID

11702062

Incident

Nov 20, 2025

I went to put windshield washer fluid into my car. When I opened the hood, I saw that the under hood insulation was gone (Burt away). We just had a snow storm and it happen to be heavy wet snow. I always turn on the car from my house (auto start). The heavy snow forced the hood to touch the engine and because it did not have a cover, destoyed the insulation. I went to Honda and showed the service manager the picture. He said I would have to pay to replace the under hood insulation, that does not seem right.

NHTSA ID

11632710

Incident

Dec 27, 2024

I purchased a new 2023 Honda Accord from Woodland Hills Honda on 1/20/24. On 1/23/24, I pull into my garage after driving home from work and turn off the car. I get out to an overwhelming smell of gasoline. I inspect the car for visible leaks, which I don’t see, but the gasoline fumes kept growing and spreading throughout my garage. Concerned for my safety, I call the fire department. They show up and inspect the car and find no visible leaks either but advise that I do not keep the vehicle in the garage overnight due to the growing fumes and to get the car towed to the dealer, as they do not want to turn the ignition on either for risk of fire. I call Honda Roadside Assist and they towed the car to the dealership. The next morning, I get a text message from a Honda service rep at 7:30am initiating the service. After 3 hours of waiting and not getting an update, I text the same number asking what the status of the car is and whether they have identified the cause of the gasoline fumes coming from the hood. The rep texts back saying he will call me. When he calls, the first thing he says is that they identified the issue and that “It’s not a big deal, the car wasn’t going to catch on fire.” No concern for my safety or what I had gone through, but rather a diminishing of the issue. He says it has something to do with a pipe that is supposed to distribute the fuel to the engine and other components, but the pipe is damaged and gasoline was getting backed up in the engine, causing the fumes. I don't know whether the problem has been reproduced/confirmed by the dealer apart from my verbal conversation with the service rep. I have asked for documentation for the diagnosis of the issue, a repair order, and report regarding long-term damage to the car 3 times and the service rep has dodged my questions all 3 times. There were no warning lights/messages prior to the issue and no one else has inspected the vehicle. I am worried they will hand me back an unsafe car

NHTSA ID

11569031

Incident

Jan 23, 2024

The vehicle has a feature that when transmission is in Park, and certain parameters are met the vehicle engine turns off after 20 minutes. There are no warnings offered. I nearly died when taking a nap in my car on a hot day in my car with a/c running. Then, without warning the vehicle just turned off while I was sleeping. I was woken by a passerby who noticed my overheating body. This is obviously especially dangerous for children. I reached out to Honda and they confirmed this "feature". However, they offered No solution. There should at least be an override on this system for when the weather is severe.

NHTSA ID

11536002

Incident

Jul 30, 2023

The car will completely shut off while in drive and while driving. Not the auto shut off feature as that is off at the time the car shuts off. This has happened multiple times and isn't safe. There is no indication as to when it will happen, but it will randomly shut off after a short drive or long drive. Once I turn the car back on there is nothing that displays on the dashboard to indicate what happened or why or any issues the vehicle has. It's as if the car wasn't on and I'm turning it on for the first time. The car was leased in February and has been experiencing these issues since the beginning of the lease.

NHTSA ID

11534943

Incident

May 16, 2023

The Honda Accord LX is equipped with a seven inch audio infotainment screen that does not detect nor capable of having wifi. The car's computer will update through Bluetooth and/or tethering to my phone. After I set up my hondalink and free att wifi(which wifi is on my phone), I went to Honda dealer I bought from and another local technician to speak to them about my phone tethered settings being on no file transfer. At both locations I was told my car does not update through my phone, they looked for a wifi connection in my car, and then asked to see my phone. I thought a recent update had made my engine go to 4rpms without switching gears. I was told where I bought it at that this was not on my cars computer and it did not happen. I have contacted Honda Corp to be told the same that the car does not update through my phone. Hondalink has a locator and engine updates were applied to my car at 8pm on Friday night in my driveway. Bluetooth does not have enough strength to install engine updates.

NHTSA ID

11525198

Incident

May 27, 2023

On 5.20.23, performed required remote system update for 2023 Honda Accord EX (gas) with 3,410 miles on it. HondaLInk app indicated update was requested while car dashboard indicated the update was installed and complete. Immediately thereafter, the Check Engine Light went off (not blinking) and received following message: "Emissions system problem. Power may be reduced. See your dealer.". Habitual problem for Honda. I was forced to trade in a 2019 Accord Hybrid due to emissions problems causing blinking Check Engine Light with car computer NOT retaining error codes - see prior complaint to NHTSA - tracking #11521930.

NHTSA ID

11523030

Incident

May 20, 2023