2018 Honda Accord Hybrid engine problems

Related recalls

No recalls on file.

What owners say

1. Filed Aug 31, 2026FLElectrical SystemEngineFuel, Hybrid & EV Propulsion

   While driving on a bridge at under 20 mph, the vehicle's head gasket failed, causing the engine to overheat and coolant to leak from within the engine. The vehicle threw diagnostic trouble code P2601 and immediately entered "limp mode," severely cutting engine power and vehicle speed. Because this happened on a bridge with no shoulder to safely pull over, the sudden loss of power created a serious safety hazard — the vehicle could not maintain a safe speed or keep pace with…

   NHTSA complaint #11761032 · source
2. Filed Jun 25, 2026CAEngineAcceleration & Cruise Control

   On 2-252026 my wife and I were driving on highway I-15 in California when the car started to accelerate, decelerate and jerk and the engine light came on. It was very scary because we were on a major highway driving around 60 MPH and cars were behind us when the deceleration happened. We could have been hit by cars traveling behind us or either we could have caused a major accident. We had to get off the highway and have the car towed to Honda for assessment. There was no…

   NHTSA complaint #11746562 · source
3. Filed Jun 24, 2026CAEngine

   While driving on the highway at approximately 65 mph with my child in the vehicle during rush-hour on May 21, 2026, my 2018 Honda Accord Hybrid Touring (105,746 miles) suddenly dropped speed, and began backfiring and stopped responding to the gas pedal. The check engine light flashed and the vehicle ran rough. I activated emergency flashers and drove slowly to the shoulder. Sunnyvale Honda (Sunnyvale, CA) diagnosed coolant intrusion into one of the cylinders and head gasket…

   NHTSA complaint #11746305 · source
4. Filed May 28, 2026CAEngine

   I am writing to file a formal complaint regarding my 2018 Honda Accord [VIN# [XXX] ] concerning what I believe to be a defective cylinder head or head gasket — an issue I have since learned is widely reported within the Honda owner community and is currently the subject of active class action litigation. Beginning at approximately 89,000 miles, my vehicle began experiencing episodes of engine rumbling followed by sudden shutoff. These episodes occurred two to three times…

   NHTSA complaint #11740669 · source
5. Filed Feb 4, 2026OHElectrical SystemEngineAcceleration & Cruise Control

   Over the past several years, there have been multiple instances where I or my wife are driving on the highway and the engine light comes on or starts flashing, and I am unable to go faster than 50 miles an hour, and the engine itself feels to be underpowered. We have taken it to the dealership for repair at least five times over the past five years and in each case they have attempted to do a repair and said the issue has been resolved, but the issue continue. At at least…

   NHTSA complaint #11715485 · source
6. Filed Oct 14, 2025OHEngineTransmission & Drivetrain

   The car loses power. It starts as a misfire on cylinder 2 (P0302 code) and the engine starts to shutdown (or goes into a safe mode with no power). The result is loss of speed which creates a safety hazard especially on highways. This has happened multiple times and the car has been in the shop 4 times for this issue. We have to pull off the road, turn the car off, sit for a minute and restart the car. It will then run ok. This has happened during acceleration and when just…

   NHTSA complaint #11693248 · source
7. Filed Aug 28, 2025MIEngine

   The engine head gasket failed due to design flows. I have to put coolants and oil on a daily basis to keep the car running to avoid overheating.

   NHTSA complaint #11683633 · source
8. Filed Aug 11, 2025CAElectrical SystemEngineFuel, Hybrid & EV Propulsion

   At approximately [XXX]. Pacific, I was traveling southbound in the fastrak lane of the [XXX] departing from Pleasant Hill, California headed to Pleasanton, California. As I began to accelerate, the engine began to sputter. Immediately, the check engine light flashed on, then the dashboard reported a number of issues ranging from brake failure, TPMS failure, power assisted steering failure, vehicle stability assist failure and a number of other issues that I have never…

   NHTSA complaint #11679970 · source
9. Filed Apr 18, 2025CAEngine

   Subject: Safety Complaint – Premature Head Gasket Failure in 2018 Honda Accord Hybrid (VIN: [XXX] ) Dear NHTSA Representative, I am submitting this letter as a formal complaint regarding a serious and premature mechanical failure in my 2018 Honda Accord Hybrid (VIN: [XXX] ). At approximately 96,000 miles, the head gasket failed, resulting in major engine problems and potentially unsafe vehicle performance. I am the original owner of this vehicle and have maintained it…

   NHTSA complaint #11655397 · source
10. Filed Feb 16, 202599,169 miNYEngine

    About two weeks ago, I could have been killed on the New York State Thruway when my 2018 Honda Accord suddenly lost all power. One moment, I was driving normally—then, without warning, my check engine light came on, I had zero ability to accelerate and was forced to pull over as my car rapidly lost speed. II had my vehicle towed to Morehead Honda where they ran diagnostics and told me my car needed nearly $6,000 in repairs due to coolant leaking into the engine, which caused…

    NHTSA complaint #11642998 · source
11. Filed Nov 5, 2024CAElectrical SystemEngineFuel, Hybrid & EV Propulsion

    Car has been throwing check engine light codes for different things for the past three years. First, the spark plugs needed to be replaced, then the electric coolant pump. After each repair, the check engine light came back on as soon as 4 days after but as late as a month after. Most recently, while driving on the highway the car check engine light came on and began flashing and the vehicle would not accelerate past 20mph. I took the closest exit and parked the car and had…

    NHTSA complaint #11623735 · source
12. Filed Sep 16, 2024OREngine

    Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Experience engine running rough. - There are multiple misfiring cylinders. available for inspection upon request. - My safety and the safety of others was put in immediate risk when the engine started to jerk violently back and forth on the freeway. - The problem been reproduced and confirmed by a certified local Honda dealership. - There were no warning lamps, messages or other…

    NHTSA complaint #11614914 · 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