2021 Honda Accord Owner Complaints

The contact owns a 2021 Honda Accord. The contact stated that while her son was driving 55 MPH, the vehicle shut off with several warning lights illuminated on the instrument panel. The contact's son pulled off to the shoulder of the highway and had the vehicle towed to a dealer. While at the dealer, the mechanic discovered coolant leaking into cylinder #2, causing an engine misfire. The dealer replaced the head gasket. After the repair, the failure returned immediately upon driving the vehicle home from the dealer. The vehicle was taken back to the dealer and the failure persisted upon return of the vehicle. While checking the repair order, the contact discovered that the service report was blank. The dealer was unable to duplicate the failure or determine the cause of the issue. The contact was not notified of the issue after retrieving the vehicle. The manufacturer was notified of the failure, and the contact was provided a case number. The vehicle remained with the dealer unrepaired. The failure mileage was 43,881.

NHTSA ID

11766324

Incident

Aug 1, 2026

Mileage

43,881 mi

Sudden braking; car comes to a complete stop and brakes so Hard. Most likely fault from Collision Mitigation Brakking system

NHTSA ID

11765567

Incident

Aug 13, 2026

The car's infotainment system constantly glitches out and changes channels,outputs,texts,videos while car is being driven. It's very distracting and dangerous. It will literally do it 100's of times within a short period. It's much worse than any text messaging distraction, which is against the law. Several people with this car have the same issue. Also the car will break when there's actually nothing in the road that should make it break but it will just slam on the brakes.

NHTSA ID

11764376

Incident

Oct 28, 2021

COMPONENT: Visibility--Exterior Rearview Mirror, Passenger Side. While driving normally, the passenger-side exterior rearview mirror glass/holder assembly suddenly shattered and completely detached from the mirror housing. There had been no known collision or contact with another vehicle or object. The passenger window was open. The detached mirror glass/holder assembly entered through the open passenger window and landed on the passenger seat. Numerous small fragments of mirror glass were also deposited inside the passenger compartment, including on the passenger seat and dashboard. After the incident, the passenger-side mirror housing remained attached to the vehicle and remained in its normal extended operating position. The housing did not fold from the event and does not exhibit obvious significant collision damage. The detached mirror assembly and photographs have been preserved. Photographs show the exterior mirror housing,m the exposed internal adjustment mechanism, the shattered mirror assembly on the passenger seat, the shattered glass and the rear of the detached mirror holder/adjustment assembly. I am concerned that this may represent a failure of the mirror glass/holder or its attachment mechanism rather than ordinary collision damage. Because the mirror assembly and glass fragments entered the occupied passenger compartment, I believe the event presents a potential safety hazard to vehicle occupants. I am requesting that NHTSA retain this complaint for comparison with similar reports involving Honda Accord exterior mirror glass shattering or detachment.

NHTSA ID

11764287

Incident

Sep 10, 2026

Vehicle started flashing all lights on dashboard. I drove it for awhile and then it eventually went off. A few days later same lights came back on a car started misfiring. Was told by Honda that is was the Turbo that's going bad. Today is just cut off on me. Luckily there wasn't anyone behind me. I see a lot of people are having these same issues and a recall should be put out immediately.

NHTSA ID

11763472

Incident

Sep 10, 2026

Door lock actuator(s) randomly failing to lock/unlock. Multiple reports on forums for same exact issue. Replace one, another fails shortly after. Issue involves both locking and unlocking, putting safety individuals at risk for unexpected access to car or inability to lock car once inside. No messages, warnings, or suggestions from car to tell me that the locking had failed.

NHTSA ID

11762690

Incident

Oct 1, 2025

Unable to use cruise control Unable to use lane control Unable to use tire pressure gauge Unable to use auto brake system Car shakes due to a sudden decrease in engine performance. Turbocharger issues Powertrain System issues ECM Failure

NHTSA ID

11761750

Incident

Jun 20, 2026

Dash lights on for Brake system malfunction. Emergency parking brake light on as well as TPS system. Lights around Park, Neutral and drive not illuminated. Battery and alternator are in good standing.

NHTSA ID

11761169

Incident

Aug 31, 2026

All of my services lights are on in th dashboard.

NHTSA ID

11760127

Incident

Jun 12, 2026

SUBJECT: A REQUEST FOR HONDA CORPORATE INVESTIGATION AND GOODWILL ASSISTANCE - 2021 HONDA ACCORD I am submitting a formal complaint regarding serious and recurring electrical and safety-related problems with my 2021 Honda Accord. 1. Numerous dashboard warning lights and safety-system warnings illuminate simultaneously. 2. The vehicle repeatedly displays messages instructing me to "See Dealer." 3. The power door locks repeatedly click and cycle as though they are attempting to lock or unlock on their own. 4. The stereo, on its own, scrolls through buttons and bluetooth blinking through all the stereo options on its own. 5.An OBD diagnostic code reader is unable to properly communicate with the vehicle and reports "Unable to Connect/Vehicle Not Found." 6. Sudden brake activated without any object being in front of the vehicle. 7. Factory Rims Extensive finish failure The simultaneous occurrence of these problems strongly suggest that this may involve an electrical, communication-network, body control module, wiring, power-supply, or other vehicle system defect rather than ordinary wear and tear. I am particularly concerned because the dashboard warnings involve vehicle systems that may affect braking, steering, stability control, driver-assistance features, and other safety functions. When numerous safety warnings illuminate at the same time, I have no reliable way of knowing which vehicle systems are actually functioning correctly. The repeated activation of the door-lock system is also concerning. The locks should not continuously activate on their own during normal vehicle operation. Combined with the diagnostic communication failure and multiple warning messages, this raises concern regarding a larger electrical or vehicle-network malfunction. Although the vehicle is currently outside the factory warranty period, this type of widespread electrical and safety malfunction should not reasonably occur in a 2021 vehicle as the result of normal use.

NHTSA ID

11759493

Incident

Aug 23, 2026

The contact owns a 2021 Honda Accord. The contact stated that while driving approximately 30 MPH, the message "Emission System Problem" was displayed. The vehicle was taken to the dealer, where it was diagnosed and determined that the turbocharger had failed and needed to be replaced. The contact was informed that the failure was a common issue. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 108,579.

NHTSA ID

11758597

Incident

Aug 17, 2026

Mileage

108,579 mi

My car currently has displayed all lights on panel. Went to auto zone to have codes read, shows powertrain-description is code PO299 suggests turbocharger assembly. Safety is put at risk because all of the safety features are now disabled.

NHTSA ID

11757836

Incident

Jun 13, 2026

Infotainment system recieving phantom / ghost touches. Screen selects menu items on its own, plays, pauses music, causes major distraction and disruption. Screen flashes when changing menus and can pull attention from the road. Safety issue!

NHTSA ID

11757660

Incident

Aug 18, 2026

Emission system

NHTSA ID

11757216

Incident

Aug 15, 2026

40,000 miles and 5 years after original in service date - failure of 2021 ACCORD 1.5T headgasket system between cylinder s #1-2. Required full head disassembly, removal, rebuild of head, and replacement of head gasket and associated components. $6000 quote from Honda Corporate as I was 55 DAYS outside of warranty. Absolutely ridiculous for a 5 year old car with low miles.

NHTSA ID

11757180

Incident

Jul 14, 2026

My center screen has a ghost touch; I have brought it to my dealer since the day I bought it I have been having screen and CarPlay issues. never fixed always told its fake phone cable, even though my phone can be disconnected and the screen still goes crazy, either way I left it alone because I can't keep going to the dealer, today while I was backing up this ghost touch keep changing my camera angle and caused the screen to freeze completely, I would suggest looking into this as I found many people online with the same issue,

NHTSA ID

11752534

Incident

Jul 23, 2026

I own a 2021 Honda Accord Hybrid. Shortly after purchasing the vehicle as a used vehicle in 2023, I began experiencing intermittent air conditioning performance. The A/C would gradually lose cooling capacity over time until it was no longer able to cool the cabin effectively. To temporarily restore operation, I added refrigerant approximately twice per year, believing the system had developed a minor leak. As the condition worsened, I brought the vehicle to an authorized Honda dealership for diagnosis. The dealer diagnosed the vehicle with a leaking A/C condenser and a leaking heat exchanger pipe and recommended replacement of both components. Honda declined goodwill assistance because the vehicle is outside the original warranty period. I later learned that Honda previously issued an extended warranty for A/C condenser failures on 2018–2020 Accord models due to a known condenser defect. My vehicle exhibits the same symptoms of gradual refrigerant loss and declining cooling performance, despite being a 2021 model year. In researching this issue, I found multiple reports from other 2021 Accord and 2021 Accord Hybrid owners describing similar A/C condenser failures and refrigerant leaks. I am submitting this complaint because I believe there may be a broader pattern affecting 2021 Accord vehicles that warrants review. I am requesting that NHTSA document this complaint and evaluate whether similar failures are occurring in 2021 Honda Accord and Accord Hybrid vehicles.

NHTSA ID

11752456

Incident

Jul 23, 2026

My car stalled stopped and takes a While to turn on , all lights turned on .. coded came back and showed it was fuel pressure regulator / fuel pump. I believe it is part of the recalls put in place for other Honda accord lx as well since I’m having same problem

NHTSA ID

11752286

Incident

Jul 15, 2026

The infotainment touchscreen in my 2021 Honda Accord Hybrid intermittently registers inputs that I am not making. The screen experiences repeated “ghost touches,” accompanied by random beeping and clicking sounds. During these episodes, the system changes GPS screens or navigation directions, changes music or audio settings, turns the audio on or off, closes applications, and opens other applications without any input from the driver. During these "ghost" episodes, the touch capability seems to also be intermittent preventing from leaving the current screen or app that the "ghost" clicks on. This problem occurs while the vehicle is being driven and creates a serious distraction. The unexpected sounds, screen changes, and navigation changes draw the driver’s attention away from the road and may require the driver to attempt to stop or correct the malfunctioning system. This increases the risk of a collision and could result in serious injury or death. I contacted a Honda dealership regarding the issue. The dealership indicated that it was aware of this behavior and had received similar reports from multiple other vehicle owners. The malfunction is intermittent, but it has occurred repeatedly. There were no warning lamps or dashboard warning messages before the touchscreen began malfunctioning. The vehicle and infotainment system are available for inspection upon request. I also have video evidence showing an example of the touchscreen malfunctioning and producing inputs without being touched. See Google Drive link to Movie: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11750216

Incident

Jun 15, 2026

My 2021 Honda Accord Sport has had a problem that started about 30k miles which I told them about 3 times. The sun visors do not stay up. they hang down and you have to move them out of the way. I tried to get the dealer to replace them, but they said I was past the warranty, and I was going to be changed about 400.00 per visor. I kept messing with them and finally it got a little better. But did not last. I told them again, but I could not, and would not spend over 800.00 for sun visors. Id do without them before paying 800.00! Used to they were simple made and no problems. But now they have mechanisms inside that have parts that wear out. Because Honda would not replace them, and Bell Honda would not either, I will not buy another care from Bell Honda. As when I bout my 2014 Nissan in [XXX], then moved to [XXX] I took my car to Nissan on Bell, and for the first time ever, before the Honda did it, a sun visor stopped functioning right in my Altima, but because I took my car there for services, the dealership replaced it for me. Now today, searching for new visors, I found that many people are having problems with the Honda visors, and saying it is a safety issues, and one person said their dealer replaced theirs 2 times. With all the complaints you'd think Honda would have to change the way they are made. But seems they don't care. In-fact, before my car had 40k miles, one of my motor mounts went out, and something else before that. Thankfully my motor warranty was still good. But these expansive, poorly made sun visors really should be recalled as it is a safety issue. Please do something to make that happen. Thank you! This is reoccurring from 2023-2026. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11750153

Incident

Feb 2, 2026

First of all started with small coolant missing, later on I started noticing power loss and finally white smoke out the exhaust. Blown Head Gasket. Honda need to own up on defect engine design the ford did awhile back. Those slits between the cylinder was a big mistake. I myself is doing the repair. 2021 Honda Accord Sport 2.0 with mods and tuned

NHTSA ID

11749905

Incident

Nov 28, 2025

I am submitting this complaint regarding my 2021 Honda Accord because of a serious safety issue involving the turbocharger and fuel injector system. While driving on the highway, my vehicle experienced a failure related to the turbocharger and fuel injector system, which caused multiple warning sensors to activate and resulted in the vehicle suddenly losing power and becoming unable to continue driving. This unexpected failure forced my car to stop in the middle of the highway, placing me and other motorists at significant risk of a serious accident or fatality. A vehicle should not suddenly become inoperable while traveling at highway speeds due to a mechanical defect. This creates an extremely dangerous situation, especially in heavy traffic where other drivers may not have sufficient time to react. After researching this issue, I discovered that numerous other owners of 2021 Honda Accords have reported similar failures involving the fuel injectors and turbocharger. Given the number of reported incidents and the serious safety risks associated with these failures, I believe this represents a potential defect that warrants investigation. I respectfully request that the National Highway Traffic Safety Administration investigate this issue and require Honda to issue a safety recall if appropriate. No driver should have to experience a sudden loss of power that leaves them stranded in moving traffic due to an apparent vehicle defect.

NHTSA ID

11749412

Incident

Jul 1, 2026

Had to repleace the electrical parking brake sensor. Now all my lights on the dash board are lighted up and have to go get a diagnostic test done

NHTSA ID

11748937

Incident

Jul 7, 2026

I’m not sure what it’s called, but the entertainment system where the touch screen is for radio, has ghost touches when the weather gets warm. Over the winter, this never happens. But during the summer, the screen starts glitching out and if I have gps going, this is a real safety issue because the ghost touches change the screen and I don’t know where I’m going. And it’s very distracting , the ghost touches continue every couple seconds.

NHTSA ID

11748397

Incident

Jul 1, 2025

Touchscreen system in my 2021 Honda Accord Hybrid Touring is now having issues registering touches or is exhibiting ghost touches. This results in unpredictable selections for diverse systems like sound, touch free phone integration, navigation, etc. These are distracting in the extreme, and seem to be common during the afternoon hours in strong sun. This issue is partially mitigated via a hard reset, but this is helping less and less as this error becomes more and more common.

NHTSA ID

11748375

Incident

Jul 1, 2026