Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Honda Accord owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owned a 2015 Honda Accord. The contact stated that while the vehicle was parked outside, the vehicle caught fire. The authorities were called to the scene and extinguished the fire. Upon inspection of the vehicle, the fire department determined that either the battery wiring and/or the roof wiring had caused the fire. The vehicle was towed to an independent tow yard where it was deemed a total loss. There were no injuries or property damage as a result of the fire. The dealer was notified of the failure. The manufacturer had yet to be notified. The vehicle was deemed a total loss. The failure mileage was approximately 92,000.
The contact owns a 2015 Honda Accord. The contact stated that after starting the vehicle, the engine made an abnormal ticking sound. The vehicle was taken to an independent mechanic, where an oil change was performed; however, the abnormal ticking sound became significantly louder. There was no warning light illuminated. The independent mechanic informed the contact that the engine had failed. The contact stated while driving 45-50 MPH two hours later, the failure recurred, and the vehicle shuddered and stalled in the middle of the road. The contact was able to restart the vehicle and drove 50 feet into a gas station driveway, where the vehicle stalled. The vehicle was towed to the residence. The Subaru dealer where the vehicle was purchased from, was contacted, and informed the contact that the vehicle was not covered under an Extended Warranty due to the mileage. …
The contact owns a 2015 Honda Accord. The contact stated that while her daughter was driving 25 MPH, there was an abnormal knocking sound coming from the engine compartment, and the vehicle started to vibrate, and almost stalled. The contact's daughter safely drove to the residence, and the vehicle was towed to a local dealer to be diagnosed. The contact was informed that there were two engine cylinders that were inoperable, and that the engine needed to be disassembled for additional diagnostic testing. The contact was informed that the engine needed to be replaced. The contact linked the failure to NHTSA Campaign Number: 15V121000 (ENGINE AND ENGINE COOLING); however, the VIN was not included. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 93,466.
I was coming out of a turn on a local street, going very slow. My vehicle ended up crossing the two lane road and hit a telephone pole. The pole did not fall down. Thankfully, neither myself nor my front passenger were seriously injured. We had on seat belts and the air bags DID NOT deploy. There was no warning of a crash in terms of instruments or trouble with handling. The vehicle motor was shut off because I tried to cut the motor after impact and it was already stalled.The vehicle was declared a total loss. No one to my knowledge did any safety inspections. I have since learned that the crash may be a result of some known defects in the model. I have never received any recall notices in the years of owning the car. I purchased as certified pre-owned in 2018. This is a courtesy notice to help others.
The contact owns a 2015 Honda Accord. The contact stated that the vehicle lost motive power while driving at slow speeds. There was an abnormal burning odor. After restarting the vehicle, the vehicle worked as designed. The contact stated that while his daughter was driving, she became aware of an abnormal burning odor. The power steering became inoperable while driving. There were no warning lights illuminated. The vehicle was taken to an independent mechanic, and the contact was informed that the electric power steering assist had failed, and the electric motor was overactive. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 130,000.
The contact owns a 2015 Honda Accord. The contact's son stated that while driving at an undisclosed speed, the vehicle stalled and failed to exceed 50 MPH. The check engine warning light was illuminated. The vehicle was able to restart; however, the failure persisted. The vehicle was taken to the dealer, where it was diagnosed and determined that there was a misfire in cylinder #2, causing engine failure, and the contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was then taken to an independent mechanic, where it was diagnosed that the fuel pump had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 164,040.
On May, 25, 2021 my family were on the highway and all of a sudden the car started stalling. In which the accelerater started braking instead of moving, the car was slowing with all the lights turning on on the dashboard. FCU failure message flashing with engine sign, Ldw, Fcw, tire pressure, stability sign, steering sign all came on. It almost caused us to have an accident. My kids my wife everyones were screaming because other cars and trucks around us, and we didn't know what's going on with out car and other cars were honking at us. We were all so scared and my wife was crying, my kids were crying. We signal with our hands out of the car to get to the shoulder and stopped the car. We thought we are going to die if any of the trucks or cars hit us. Never scared in our life like that day. So still my car is on my driveway parked. …
Driving at Interstate speeds, I had the engine suddenly **THUNK** and lose power. I limped it to the side of the road to get out of traffic. I went to investigate and the vehicle would not even idle. It just shut off After having it towed back to local service company, looked at, and the dealership I bought it at to look at, I am told the main bearing failed on the connecting rod. The thunks I hear is the rod spinning in there, shearing off metal shavings that are now all over inside the engine bay. Honda has a TSB out for the car, for this exact issue, but my VIN number somehow doesn't fit in their window. Component that failed - Main bearing on the Connecting Rod Safety of myself and others - Gave out while driving highway speeds, which caused the car to lose power to keep it at highway speeds. …
I own a 2015 Honda Accord EX-L V6 3.5L that I purchased brand new from the dealership with zero miles. I've taken excellent care of the vehicle, and because I typically drive short distances, it only has 93,000 miles as of June 2025. Despite the low mileage and proper maintenance, the intake manifold plenum (part #17160-5G0-A00) now needs to be replaced due to significant deterioration. The material used for this part is poorly made, it corrodes and breaks down over time, causing vacuum leaks. This is a well-documented, widespread issue in Honda vehicles globally. In my case, the deterioration has caused performance and safety concerns and has rendered my car undrivable. To make matters worse, this part is on national backorder with no estimated delivery date. I've contacted numerous dealerships and suppliers with no success, leaving me without a working vehicle or timeline for repair. …
I Was driving my vehicle on, standing on the Expressway heading east. The roads were snow and sleek. Out of nowhere. My vehicle start to lose power. And suddenly stopped. I was stuck in the middle of the highway, very scared and feared for my life and I feared for the other peoples lives and their vehicles and hoping no collision occurs. Luckily. I was able to avoid the collision. And a tow truck came to tow my car to the Honda dealership. I had a recall for the drive shaft. A corroded drive shaft broke on which the vehicle was unmovable. My vehicle also roll away when I shifted to parked and I had to set the parking brake. This almost cost me the risk of a crash or injury without prior warning. And the Honda dealership did not correct the problem. I had to tow The vehicle To my mechanic shop and the next following day my mechanic expected that my drive shaft was not good. …
Related recalls
Engine and engine cooling › Engine
American Honda Motor Co. (Honda) is recalling certain model year 2014 Accord L4 vehicles manufactured July 29, 2014, to July 31, 2014, 2015 Accord L4 vehicles manufactured August 14, 2014, to January 30, 2015, and 2015 CR-V vehicles manufactured September 9, 2014, to February 6, 2015.
Remedy: Honda will notify owners, and dealers will replace the engine short block, free of charge. The recall began on March 27, 2015. Owners may contact Honda customer service at 1-888-234-2138.
Engine complaints in other Accord years
Frequently asked questions
How common are engine problems on the 2015 Honda Accord?
NHTSA has 110 complaints about the engine & cooling of the 2015 Honda Accord, 18% of the model year's 601 complaints. The component named most often is exhaust system (1 mentions).
Is there a recall for 2015 Honda Accord engine problems?
Yes — NHTSA recall 15V-121 (engine, Mar 2, 2015). Recall repairs are free at authorized dealers.
At what mileage do 2015 Honda Accord engine problems start?
Half of the complaints with a recorded mileage happened before about 54,000 miles, and 26% before 25,000 miles.
Is it dangerous?
Owners linked 4 crashes, 2 fires and 3 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.