2019 Honda Accord: sudden loss of power

Filed Oct 13, 2026 · Electrical, Engine · TX

Air conditioning failure: The A/C was blowing warm air on the first day of ownership. • Cooling system failure: The vehicle subsequently experienced overheating issues and left me stranded. • Coolant loss and radiator leak: All Star Honda identified a leaking radiator and found the cooling system out of coolant. • Failed thermostat: A failed thermostat was identified during the diagnostic and repair process. • Stop-leak substance found in the cooling system: Stop-leak material was observed in the cooling system. I have concerns about why it was present and not disclosed initially • Water pump and cooling-system repairs: Repairs included work on the thermostat and water pump, followed by radiator replacement and a coolant flush. • Continued overheating concerns: Despite repairs, I continued experiencing overheating alerts. • Engine performance problems: The vehicle experienced a loss of power, with a reported inability to maintain speeds above approximately 60 mph during one incident. • Check-engine warning: A prior repair-order history documented a blinking malfunction indicator light during a driving incident. • Diagnostic trouble codes: Codes P2601 and P272D were subsequently reported. • Potential head-gasket concerns: The possibility of a head-gasket problem has been raised during the ongoing dispute. Honda has referenced a multi-model cylinder-head-gasket warranty extension, but I have not received approval for coverage on my vehicle. • Warranty denial: Honda corporate has declined to approve the requested warranty coverage. Despite the repeated problems, diagnostic visits, and repair attempts, I am still dealing with the consequences of purchasing a vehicle that has not provided the reliable transportation I paid for. I have spent time and money trying to get answers, and I have been left facing the financial burden of a vehicle that I cannot confidently depend on. I am sharing this timeline because consumers deserve trans

Filed Oct 9, 2026 · Fuel system · LA

I am reporting repeated, unpredictable loss of engine power and propulsion in my 2019 Honda Accord Touring 2.0T (approximately 146,000 miles). The exact cause remains UNKNOWN. On XXX, while driving on [XXX] near [XXX], my vehicle suddenly lost acceleration at highway speeds and eventually stalled. The vehicle repeatedly lost power, experienced crank-no-start conditions, and at one point could barely maintain 10 mph. I was stranded and had to have the vehicle transported to a Honda dealership in [XXX]. Diagnostic code P0087 (Fuel Rail/System Pressure Too Low) was recorded multiple times, including at 70–74 mph. Numerous warnings appeared, including emissions, brake system, electric power steering, stability assist, adaptive cruise control, collision mitigation, and road departure mitigation. The unpredictable loss of propulsion creates a serious collision risk, especially on highways and in traffic. The Honda dealership initially could not reproduce the failure. After replacing the spark plugs at my expense, the vehicle was returned to me. Approximately 23 miles later, the malfunction returned, and I immediately brought the vehicle back without clearing any codes. Honda subsequently diagnosed and replaced the high-pressure fuel pump at my expense, but the loss-of-power issue continued. The vehicle previously received Honda’s in-tank fuel pump safety recall repair in May 2025. Despite that recall remedy and subsequent repairs, the vehicle continues to malfunction. The exact cause remains undetermined. The vehicle has been inspected by an authorized Honda dealership. Repair records and diagnostic information are available, and the vehicle can be made available for inspection upon request. I am requesting an investigation into this recurring safety-related loss of propulsion. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 7, 2026 · Electrical, Fuel system · 62,590 miles · CA

The contact owns a 2019 Honda Accord. The contact stated that while driving at highway speeds, the vehicle suddenly lost power and decelerated. The contact stated that several warning lights were illuminated and the vehicle decelerated quickly. The contact feared for her safety because of the sudden deceleration on a busy highway. The contact was able to guide the vehicle safely onto the shoulder of the road. The contact stated that prior to the failure, the vehicle had received several recall repairs including a BCM reprogramming, software updates, and fuel pump recall repair. The vehicle was towed to a local dealer and the vehicle remained pending a diagnostic test. The failure mileage was 62,590.

Filed Sep 25, 2026 · Engine · TX

The head gasket failure on the 2019 Honda Accord 1.5L resulted in loss of power while the vehicle was being driven, The vehicle could no longer accelerate normally or maintain power when needed. We had trouble accelerating to clear intersection making it extremely difficult to reach the shoulder and get out of the path of other drivers. Please investigate.

Filed Aug 13, 2026 · Engine · OH

While my vehicle was in transit, it experienced a sudden and severe loss of engine power. Simultaneously, multiple malfunction indicator lights (MILs) illuminated on the dashboard, and my vehicle abruptly engaged "limp mode." This drastic restriction of speed and maneuverability while in active traffic created an immediate and severe safety hazard, which nearly resulted in a catastrophic collision. Following the incident, a formal complaint was initiated with Honda customer relations. My own independent research clearly indicates that premature head gasket failure is a well-documented, systemic defect within these specific vehicle models; therefore, a constructive resolution was anticipated. While the initial intake communication appeared promising, the subsequent follow-up was highly unprofessional. The Honda representative who returned my call was dismissive of the safety risks involved, lacked basic professional courtesy, and explicitly stated that the manufacturer would offer no financial assistance or mechanical remediation for this known defect due to a lack of service records. The failure of this component represents both a significant mechanical defect and a severe threat to driver and public safety. This report is being filed to formally document the hazardous nature of this failure in transit, as well as the manufacturer's refusal to address or take accountability for an ongoing, documented issue.

Filed Aug 11, 2026 · Electrical, Engine · TX

Vehicle caused a SEVERE drivability condition while at highway speeds by sputtering, losing power and auxiliary driver's systems becoming degraded. We were able to drive the vehicle in limp mode to a near service station. They ran diagnostics and determined that there were multiple secondary events affecting the ADAS system. They also checked the battery and determined it was marginally good. We managed to drive the vehicle in degraded mode to our home and we changed the battery the following day. Upon doing so, all affected systems became available again and the vehicle's driveability profile was restored. This behavior is incredibly unsettling and UNSAFE. A vehicle that is so sensitive to electrical fluctuations should have BETTER warning systems that would prevent, or at least advise the driver, that an unsafe condition will occur unless the battery is promptly replaced. This behavior could easily cause an accident if the driver is unprepared to react to the vehicle sudden and unpredictable shutdown of engine power and safety systems. This needs to be investigated and corrective measures need to be promptly proposed to affected vehicle.

Filed Jul 30, 2026 · Engine · CA

My car began to not turn on. Took it to the dealership, was told it was the turbocharge being loose. They saw coolant leaking. Paid for the fix. Few days later, car lost power and entered lint mode. Took it back and with simple camera work they check the gasket was leaking. Told that since the turbo before wasn’t working as intended, the gasket became thin. Repairs are above 6k, had no warning lights. Seems this is a common issue.

Filed Jul 15, 2026 · Engine, Fuel system · GA

The 10th Gen probably with the head gasket and fuel injector Dashboard be lit up like a Christmas tree every light on. This been a problem with a lot on the 2018-2022 Honda accords when driving it lose speed going real slow lose power, and you have to try get your car off the road

Filed Jul 11, 2026 · Engine · MD

I am reporting a premature and dangerous failure of the engine head gasket on my 2019 Honda Accord Sport (1.5L Turbo engine, 68,220 miles). While driving, the vehicle suddenly lost power due to severe engine misfires. Simultaneously, the dashboard experienced a total cascade of safety system failures, illuminating warning lights for the Check Engine Light, Electric Parking Brake, Traction Control (VSA), Road Departure Mitigation, and Adaptive Cruise Control. The vehicle currently in the authorized honda dealer where technicians officially diagnosed a blown head gasket leaking coolant into Cylinder 3. This is a widespread, well-documented manufacturing defect with Honda's 1.5L Turbo engines. I request that the federal safety agency launch a formal safety investigation into American Honda for these premature head gasket failures to force a mandatory safety recall.

Filed Jun 24, 2026 · Engine, Transmission · CA

Vehicle: 2019 Honda Accord Sport 1.5L VIN: [XXX] Mileage: Approximately 122,497 My vehicle experienced a cylinder head gasket failure accompanied by coolant intrusion into the engine cylinders, injector-related issues, fuel trim failures, and cylinder misfires as diagnosed by an authorized Honda dealership. Prior to diagnosis, the vehicle experienced engine performance concerns associated with the misfire condition. The dealership documented historical misfire events and coolant intrusion into the combustion chambers. I am submitting this complaint because I am concerned that injector-related issues, engine misfires, coolant intrusion, and cylinder head gasket failures may represent a recurring condition affecting similarly equipped vehicles. Engine misfires and coolant intrusion can potentially result in reduced engine performance, loss of power, unexpected vehicle behavior, or engine failure while the vehicle is being operated. I request that the federal safety agency review this issue and determine whether a broader investigation is warranted. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 18, 2026 · Driver assistance · SC

Complaint Regarding Ongoing Issues After Turbocharger Repair – 2019 Honda Accord I am submitting a complaint regarding ongoing issues with my 2019 Honda Accord after a turbocharger-related repair. The initial diagnostic code associated with the vehicle was P2563 (Turbocharger Boost Control Position Sensor Circuit Range/Performance). After the turbocharger/wastegate repair, my vehicle began displaying multiple system warnings, including: * Emissions System Problem * ACC (Adaptive Cruise Control) warning * Collision Mitigation System warning * Lane Departure/Lane Keeping Assist warning * Electric Power Steering warning * Stability/traction control warnings * TPMS (Tire Pressure Monitoring System) warning After the repair, the vehicle began jerking and experiencing a loss of power. Multiple warning lights appeared. While the warning lights temporarily cleared after a couple of vehicle restarts, they later returned and continue to reoccur. I subsequently took the vehicle to Honda, where I was informed that a sensor required recalibration. Despite having the sensor recalibrated, the issues have continued, and the warning lights continue to return. I am requesting that Honda investigate whether the repair, wiring, sensors, modules, calibration, or the turbocharger system itself may have contributed to these ongoing problems. I have also noticed that many Honda Accord owners are reporting similar turbocharger-related issues and multiple warning lights appearing. This appears to be a very common issue among affected vehicles, and I believe it warrants further investigation to determine if there is a larger underlying problem affecting these vehicles. I am requesting that Honda review this matter, document these concerns, and provide a proper resolution. Thank you for your attention to this matter.

Filed Jun 9, 2026 · Engine, Transmission · OH

Blown head gasket. Engine lost power and forced me to pull over. The problem is well documented with this generation of Honda 1.5T engines, Honda dealership confirmed problem and second opinion from independent shop also confirmed, citing they had another Honda with the same 1.5T engine with the same blown head gasket issue. No clear warnings prior to event, all the dashboard lights flashed on when car lost power.