2015 Honda Accord Engine Problems

2015 Honda Accord EX-L presenting with constant knocking in the lower back part of the engine. Knocking varies with engine RPMs and is consistent across all drives. Oil has been maintained and at time of checking full, oil presented with copper fragments within the oil meaning a rod bearing has failed. Engine is a, 3.5L 6Cyl GAS J35Y1 Naturally Aspirated, not currently covered by the NHTSA 23V-751 recall, yet presents with all the same symptoms and engine failure issues described by J35Y6 users. Attached file is inspection from repair shop and quote for a new engine and other likely repairs.

NHTSA ID

11735958

Incident

Mar 19, 2026

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.

NHTSA ID

11706790

Incident

Dec 23, 2025

Mileage

164,040 mi

ABS MODULATOR INTERNAL FAILURE 85-01/61-11 The car cut off in the middle of me driving on the highway with my children also in the car with me it has been inspected by [XXX] who also states this is a major issue and should have been placed under recall years ago and that this is one of the major safety hazards they have seen when it cut off 4 lights appeared instantly INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11691754

Incident

Oct 1, 2025

I bought a car from a private seller on Craigslist. I've only driven the car for 2k miles before the check engine light came. Before that I had to spend like 1k on the breaks oilchange etc to get the car upto date. Now it feels really unsafe to be in especially for my daughter who is [XXX]. The dmv suspected odometer fraud. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11688664

Incident

Jun 25, 2025

I purchased a car from AutoNation Toyota Hayward in Hayward California on June 21, 2025. And on June 24,2025, the check engine light appeared. A mechanic checked my car for the code and informed me that the catalytic converter is faulty. The dealership had informed me that they check the car prior to be sold. As it goes through multiple checks. However, the car that was sold was faulty. They refused to answer my questions as to why a faulty car was sold. As I was driving the car back to the dealership, I could smell the fumes throughout my car.

NHTSA ID

11669065

Incident

Jun 24, 2025

On June 17, 2025, I went with my mechanic to inspect a car I was considering purchasing. The vehicle is a 2015 Honda Accord Sport, showing approximately 60,000 miles on the odometer. My mechanic performed a diagnostic scan, and everything appeared to be in good working order at the time. However, on June 23, 2025, I went to the DMV to register the vehicle, and I was informed that the car has a fraudulent odometer reading. The DMV has opened an investigation, but I won’t receive the results for a few months. I am now concerned that the car may not be safe to drive. It emits a burnt plastic smell after being driven and turned off, which raises serious safety concerns. I paid $10,700 for the vehicle and an additional $311 to register it and obtain a temporary plate.

NHTSA ID

11669061

Incident

Jun 17, 2025

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 rely on this car for transportation, work, and daily responsibilities. It is extremely frustrating that a critical engine component is both defective and unavailable, especially when so many other Honda owners are facing the same problem. I am filing this complaint to raise awareness and request a timely investigation and resolution.

NHTSA ID

11666805

Incident

May 14, 2025

ABS Modulator Assembly has left me stranded I see that this has been a major issue for Honda's. There has not been any recalls for this issue but they see that it is a major problem. I was told by King Honda in Auburn Alabama that this is a $2000 dollar issue and they do not know when the part will be available due to being on backorder. Please advise.

NHTSA ID

11664775

Incident

May 29, 2025

While making a left U-turn my car suddenly restarted which caused a loss of power steering and acceleration. This issue occurred 2 more times until I was able to straighten the car out into the intended lane of traffic. During the vehicle restart, I noticed several dash lights appear in the left area of the dashboard, however could not identify the meaning.

NHTSA ID

11653004

Incident

Apr 5, 2025

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.

NHTSA ID

11636150

Incident

May 15, 2024

Mileage

93,466 mi

My oil filter is a constant problem for me and no matter how many times i get it replaced it’s still leaking and i was informed that it may cause a fire and i have children in my car every day and i want to avoid that happening

NHTSA ID

11621388

Incident

Oct 11, 2024

Getting error P2602 Low Voltage Coolant Pump. No visible sings of failure or damage to the pump or wiring. Tested power, ground, and signal and found them all to be ok. Vehicle has 133,000 miles. Engine is not running hot at all. Very cool to the touch, error P2602 causes car to go into limp mode and can not drive past 40 mph. Issue could be from Pump recalls from other honda models that used the same pump that is in the 2015 Honda Hybrids. Honda did not include 2015 Honda Hybrid in the recall when they should have, because its the same pump that was recalled in other hondas. Took the car to dealer in Auburn, WA, Hinshaw's Honda. Please get report from them. To get a second opinion took car to an independent Honda repair. Again same issue, stating pump replacement.

NHTSA ID

11616936

Incident

Sep 1, 2024

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 related the failure to NHTSA Campaign Number: 15V121000 (Engine and Engine Cooling). Additionally, the contact stated that the Forward Collision Avoidance Warning light was illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The contact was awaiting a call back from the manufacturer. The failure mileage was approximately 101,000.

NHTSA ID

11588742

Incident

Apr 23, 2024

Mileage

101,000 mi

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.

NHTSA ID

11555394

Incident

Jan 1, 2021

Mileage

130,000 mi

The starter grinds or spins at startup.

NHTSA ID

11549972

Incident

Jan 1, 2023

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.

NHTSA ID

11542672

Incident

Sep 4, 2023

Mileage

92,000 mi

Problems began at 50,000 miles and now at 60,000 a year and 1/2 later they are ongoing . Electrical and engine …. Honda knows all the problems bless I am having are in many of their models! This is DANGEROUs and Honda is negligent ! First it was my car wouldn’t start. The alternator went also It needed to have the front and rear seal replaced . That is crazy ! It must be leaking oil and needed the seals due to improper torque. Had that repaired and within 2 weeks I kept saying it wasn’t running right. THEN My car overheated after driving for 10 min on a busy highway in Atlanta. Smoke pouring out of the hood. I was trapped and couldn’t get out because of traffic. HORRIFIC experience.! Electrical issue began at 50,000 miles at the same time . Electrical issues ongoing AND engine does not run right. It’s rough loud , judders , it can be sluggish or no responsive, Last year my car had 50,000 miles. It had gone through a battery every year and 1-2. Then 16 months ago it wouldn’t start. Since I have replace the starter , alternator , battery and battery cable. In individual events of warning lights or failing to start. Today the charging systems warning light and fcw light flashed while driving. The electrical system in this car is a known problem. It MUST be recalled. The 4cl has now time to recall the v-6 for torque and parasitic battery drain . This is potential for fire , car sudden loss of power it’s negligent to not recall . I have invoice after invoice but the problem persists . Why are you only recalling the 4L engine ? There is a class action about battery drain but only for 4 L? I know the didnt produce many accord V6 but the V6 is used in the Acura and I believe the Odysse. I have called and called Honda . I emailed the head of Honda in Japan . He sent my email back to the dealer. This is my 4th Honda. We were an entire Honda family but not any more . Safety is not first .My accord problems will result in a terrible accident . Please do something

NHTSA ID

11530577

Incident

Jul 6, 2023

There was a recall on some of the 2015 for engine cutting out at times when you turn and try to accelerate and nothing happens. Well its been doing it with my car but they say not part of recalls. But at times I take a turn, can't go anywhere cause gas pedal don't go till I wait a few seconds and than it goes. Dangerous driving at times

NHTSA ID

11528495

Incident

Jun 23, 2023

Bought the car used from Michigan car dealer in Shelby MI. Car had 44,820 miles. Bought the car 4/29/23. The day after I bought it the starter would not engage properly and makes a loud grinding periodically and have to put it in neutral to start it.

NHTSA ID

11522167

Incident

Apr 29, 2023

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. Mechanic had to order The drive actual shaft And get it replaced and fixed.

NHTSA ID

11520544

Incident

Feb 18, 2021

Starter motor.Will not turn the engine over to start. When the push button start is pushed you get a buzzing sound because the starter is not engageing the flywheel on the torque converter.Sometimes you have to push the start button as many as 5-10 times before the engine will start. I feel this is a safety issue because if you have a medical issue and need to go for help and the vehicle will not start that is a big problem. Honda knows about this issue but will do nothing about it.Honda's tsb 16-002 does not fix this problem. I have replaced 4 starters on this vehicle not including the original starter and still have the same problem.This problem needs to be addressed before there is a serious problem caused by this issue.This has been a problem on this vehicle for approx. 5yrs..

NHTSA ID

11485339

Incident

Apr 12, 2017

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.

NHTSA ID

11465405

Incident

Apr 25, 2022

Driving on freeway went and applied foot to gas pedal and car goes into limp mode causing in ability to drive as there isnt any power and mil light starts to blink and or will set and if it sets the traction steering and tp light also come on. Have to pull over turn car off and then the car will go this mil if sets is a p0304 code but light will go off.

NHTSA ID

11450147

Incident

Jan 10, 2022

The car will fail to start on random occasions, I needed to get gas an the car would not restart after shutting off for fueling. The car will also not restart after car washes and stall the operation of the wash.

NHTSA ID

11444647

Incident

Oct 5, 2020

The engine makes a very loud rattle at cold startup for about 1 to 3 seconds. It only makes this noise when starting the car for the first time that day, unless it has been sitting for 5+ hours, then will rattle again at cold startup. Also, The engine burns 1 quart of oil approximately every 2500-3000 miles requiring additional oil to be added.

NHTSA ID

11436428

Incident

Jan 1, 2018