2019 Honda Accord Hybrid: sudden loss of power

Filed Mar 6, 2026 · Driver assistance, Electrical · CA

Description of Incident: 1. Component/System Failure: The engine cooling system and head gasket failed. A certified shop has confirmed coolant intrusion and a failed leak-down test on Cylinder 2. The vehicle is available for inspection upon request. 2. Safety Risk: My safety and the safety of my family and other drivers were put at extreme risk. On March 1, 2026, the vehicle suffered a sudden loss of motive power while traveling at 70 MPH on the freeway. The car dropped to 15 MPH instantly, forcing me to maneuver across active lanes to a narrow shoulder with almost no space. I was nearly hit by high-speed traffic. This has occurred over 8 times since 2023. 3. Confirmation by Service Center: The problem has been reproduced and confirmed by an independent service center On Site Lube Auto & Tire. They utilized a borescope and leak-down test to verify the internal engine failure. 4. Inspections: The vehicle has been inspected by a certified independent technician. I am in the process of notifying the manufacturer (Honda) of these findings for their inspection and accountability. 5. Warning Lamps & Symptoms: Prior to the total power loss, the vehicle displayed engine temperature warnings and "check engine" lights. These symptoms first appeared approximately 8 months after purchase in 2023 and have progressively worsened, leading to the current engine failure. 6. Additional Notes: This failure is identical to issues cited in active class-action lawsuits regarding Honda's engine defects, affecting both standard and Hybrid models. I am communicating via written report/email for documentation and accessibility purposes.

Filed Sep 12, 2025 · Engine · CA

It appears the head gasket failed due to an anomaly on the engine block between cylinders. We were driving down the road when the engine lost power and went into limp mode ( dealer term). The problem of the head gasket was confirmed by the dealer, but the anomaly on the short block has not been explained. The engine block was inspected by the service tech, service manager and a rep from Honda. No explanation given. No warning lights came on until immediately after the engine lost power. The engine block is available for inspection at the dealership.

Filed Jul 29, 2025 · Engine · WA

Component or System Failed: The head gasket appears to have failed, leading to coolant leaking into cylinder 4. This has been confirmed by two separate service centers. The vehicle is currently available for inspection if needed. Safety Risk: The failure caused engine misfires and dashboard warning lights to activate while driving, which could have led to a sudden loss of power or control. I had to pull over and restart the vehicle to regain drivability, which put my safety and that of others at risk. Reproduced or Confirmed by a Dealer or Service Center: Yes. The issue was first diagnosed by Honda of Sumner, who initially suspected a compression issue. Their master mechanic later confirmed it was likely a head gasket failure. A second opinion from Greg’s Japanese Auto confirmed the diagnosis and provided photos showing coolant in the cylinder. Inspected by Manufacturer or Others: Yes. The vehicle was inspected by Honda of Sumner and Greg’s Japanese Auto. No inspection has been done by police or insurance representatives. Warning Lamps or Symptoms Before Failure: Yes. After a recent service (which included an AC repair, fuel pump recall, and oil change), I experienced two misfires in cylinder 4 within 24 hours. All dashboard warning lights came on during one of the incidents. These symptoms began four days after the service. Additional Context: I was quoted $8,100 for the head gasket repair by Honda. I believe this issue could have been detected earlier during the diagnostic service. I’ve since learned of a class action lawsuit involving this exact issue in my vehicle’s generation, which makes me concerned this is a known defect.

Filed May 8, 2025 · Engine, Transmission · CA

I was driving on the freeway and my engine lost power and all the lights on my dashboard went haywire. I tried to get off the freeway but with the loss of power made it extremely difficult and dangerous. I thought I was going to get into an accident since my car slowed down so abruptly. I had to limp my way across traffic which was very scary. The car was jerking and shaking. I finally got to the side of the freeway and the car did not want to continue so I called for a tow truck and waited on the side of a busy highway. The tow truck brought my car to the Honda dealership which diagnosed the problem immediately as a blown head gasket. They said it was a known problem and the mechanic knew what to look for. They fixed the head gasket and I have my car back. My car only has 92k miles and I don’t think the head gasket should fail this early in the vehicles life. I properly maintain my engine with routine oil changes. There is no reason the engine should break down like this. I feel that there is a defect in Honda’s head gasket.

Filed May 14, 2023 · Engine, Fuel system · CT

On 6/14/22 and 3/29/23, my 2019 Honda Accord EX Hybrid had engine misfirings which lead to total loss of power on Rt 15 in NY and CT: 6/14/22: Upon entering highway, car bucked during acceleration and lost all propulsion coasting to a stop. Check again light was on and blinking. After reseating gas cap car driven directly to dealer for diagnostic. Car computer did NOT retain any error codes even though engine light was blinking. Dealer did not do any repairs. 3/29/23: Near end of 30 minutes in stop and go traffic, car began to hesitate when inching forward. When accelerating to travel speed, car bucked during acceleration and lost all propulsion coasting to a stop. Check again light was on and blinking. After reseating gas cap car driven directly to dealer for diagnostic. Car computer did NOT retain any error codes even though engine light was blinking. Dealer did not do any repairs. If check engine light indicates get service soon and a blinking light means get it immediately, then there appears to be an issue with Honda's computer diagnostic for not retaining codes. Also the propulsion system for failing which could possibly create safety issues for drivers of this vehicle. I traded the vehicle in for safety purposes and was forced to purchase a new vehicle much earlier than expected.

Filed Jul 22, 2022 · Engine · CA

Hello, I am writing to you about my 2019 Honda Accord Hybrid. This vehicle make and model had over 600,000 safety recalls for the Denso fuel pump. When I Input the vehicle on Honda for recall info, nothing shows up. I took it to a local Honda dealer but they did not check the fuel pump instead told me it was other issues. I was driving my vehicle on the freeway after my first Honda visit and my vehicle suddenly lost power and the check engine light started flashing ( I have videos of this if needed). There was a truck behind me and I almost got hit by the truck which was a significant issue to my safety. I also started to smell gas. These are all signs of a bad fuel pump. I understand that my vehicle does not pop up on the recall with the VIN number but being it the same make and model with similar symptoms, I would like to see what the federal safety agency can do to inform me of the recall as my vehicle possibly might have a bad fuel pump ( which should be covered under this recall).