2019 Honda Accord Hybrid engine problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 9, 2026OHEngineTransmission & Drivetrain

   The vehicle has a documented, severe manufacturing defect involving a cylinder head gasket leak under Honda Service Bulletin 26-006. A certified technician at Honda East Cincinnati confirmed the head gasket leak in writing on September 9, 2026. Prior to this, an independent facility pulled code P0302 (Cylinder 2 Misfire) and used a digital borescope to capture video proof of liquid coolant pooling inside Cylinder #2. Despite written documentation from both facilities…

   NHTSA complaint #11763151 · source
2. Filed Jun 23, 2026CAEngine

   Head gasket blown on engine. Burned off coolant so no leaks detected and just showed high temperature to pull over and let engine cool. Could have cause engine fire and/or disabled vehicle while on road. Very expensive fix and dealers who were contacted said they’ve had multiple vehicles repaired for same issue. Online is widely reported problem with this make and model and among the different trim types all same problems

   NHTSA complaint #11745966 · source
3. Filed May 7, 2026136,000 miSCEngine

   The contact owns a 2019 Honda Accord. The contact stated that while driving at an undisclosed speed the vehilce intermediately misfired due to oil leak. No warning lights were illuminated The vehicle was taken to the local where it was diagnosed the head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was contacted but no assistance was provided. The failure mileage was approximately 136,000.

   NHTSA complaint #11736267 · source
4. Filed May 5, 2026CAElectrical SystemEngine

   Vehicle was being driven on the highway when suddenly engine hesitated and started stalling. Speed was reduced from around 65MPH down to the low 40s. Cars were stacking up behind and passing, causing potential hazardous conditions. Vehicle was taken to a mechanic shop and diagnosed with misfiring, after reading OBD II with many alerts coming on. Further diagnostics revealed cylinder head gasket was leaking coolant into engine, as shown by borescope images. This is a known…

   NHTSA complaint #11735893 · source
5. Filed Mar 9, 2026CAElectrical SystemEngineAcceleration & Cruise Control

   1. Component: The engine head gasket and the combustion system (specifically Cylinder 2). Specifics: A leak-down test confirmed a failure in Cylinder 2, leading to coolant intrusion. This was initially masked by a water pump code, but after the water pump was replaced and the code returned, a borescope confirmed "clean" pistons (steam-cleaned by coolant) and tap scarring. Availability: Yes, the vehicle and all diagnostic records are available for inspection. 2. Emergency…

   NHTSA complaint #11723059 · source
6. Filed Mar 6, 2026CADriver Assistance & Safety TechElectrical SystemEngine

   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…

   NHTSA complaint #11722489 · source
7. Filed Feb 24, 2026CAEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   City street driving speed < 35-40 mph, engine began rough idling at stop light after traveling just 1/8 mile. After driving less than 1 mile on level ground, engine slowed and would not accelerate above 20 mph. After another mile or so, increasing uphill grade caused speed to slow to 12-14 mph. Stepping on gas caused car to slow down even more, with shaking and jerky stop-start of vehicle. Maintaining 10-12 mph permitted vehicle to continue uphill climb for a few more miles…

   NHTSA complaint #11720056 · source
8. Filed Sep 12, 2025CAEngine

   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…

   NHTSA complaint #11686910 · source
9. Filed Jul 29, 2025WAEngine

   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…

   NHTSA complaint #11677083 · source
10. Filed May 14, 2025OKEngine

    Blown head gasket repaired after unknown coolant loss. Eventually intermittent warnings to pull over and slow down which resolved within seconds. Continued until it was determined the gasket had failed. Numerous instances of hybrid engines failing in this manner. Repaired by independent shop.

    NHTSA complaint #11661059 · source
11. Filed May 8, 2025CAEngineTransmission & Drivetrain

    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…

    NHTSA complaint #11659652 · source
12. Filed Mar 27, 2025WAEngine

    Was driving on freeway my car wouldn’t go faster than 45 mph. Check engine light all of a sudden Came on. Cars almost hit me from behind because my car wouldn’t accelerate. Had to pull over at the exit. After pulling over and shutting down the car, I turned car back on and all warning lights came on. I was able to drive slowly to a Honda dealership which was about a mile away. Had to pay for a diagnosis and they discovered that the coolant expansion tank was completely.…

    NHTSA complaint #11651180 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology