honda has recall/extended warranty on 6cyl vehicles dating back as far as 2008, for cylinder misfires caused by bad piston rings. Recently had to have this done on my 2016 vehicle, but it wasn't covered under any recall or warranty. this is clearly an ongoing problem, and Honda should be paying for these repairs.

- Columbus, OH, USA

The contact owns a 2016 Honda Odyssey. The contact stated that while driving at an undisclosed speed, the vehicle started to shake and vibrate and the check engine warning light flashed on and off before the vehicle decelerated and would not properly accelerate while depressing the accelerator pedal. The vehicle was later towed to the local dealer who diagnosed that the engine pistons had become out of alignment causing oil to leak onto the spark plugs. The vehicle was not yet repaired. The manufacturer was contacted but no assistance was offered. The failure mileage was 76,650.

- Columbus, OH, USA

The piston rings are failing and causing a misfire. The dealer, honda care, and corporation have all said they are aware of this issue, but not willing to help the customer. Currently, my dealer has 6 cars with the same issue. All service men are stating, yes, we know exactly what the issue is when seeing the warning code. The misfire caused my car to not fully accelerate on a major highway. The dealer has documented the issue. A bunch of warnings appeared when this happened. Honda corp said they will give me half the cost and again have stated they know about this issue.

- Lemont, IL, USA

My husband was driving the car up a hill and coming to a stop light while slowing the car with the break the engine accelerated (you could hear it). He had to throw the car into neutral to get it to stop in time so as not to hit the car that was stopped in front of him at the stop light. This was not a "hard stop". He saw the red light and was breaking. There were two other witnesses in the car. My husband drives with his right foot and never breaks with his left foot. Though the car was stopping the engine was racing and the car was accelerating despite having his foot on the break petal. Unexpected acceleration is what the dealership called it. No he didn't have both feet on both petals. The car was accelerating despite his foot on the break petal. The witness confirm the car was trying to stop but the engine was racing. We took the car into the dealership and they brought in the "Honda Engineer" who checked out the car and found nothing wrong. They found the floor mats were pinned into place and were not a factor. The dealership seems to want to blame this on "driver error" and deny that there is anything wrong with the vehicle. The service manage with his left foot indicated as if he was breaking with his left foot when explaining that they believe it wasn't mechanical. In other words, they are saying it was driver error (with their body language). I believe they are deny deny deny and not taking our concerns into account. I did a search of similar issues with Honda Odysse's and found that there are other reports of this type of "unexpected acceleration". Thank You.

- Clayton, CA, USA

VCM causes excessive wear on piston rings leading to excessive oil burning, spark plug fouling, and misfiring cylinders. Condition displays flashing engine light and emission, FCW, and LDW warnings codes, disabling the FCW and LDW. Walker Honda (71303) technician, Cody Procell, stated he has dealt with this problem numerous times and was able to quote a near exact price of $4069. Repair total after $100 military discount was $3993. Previous generation Odyssey has been recalled for same issue.

- Pineville, LA, USA

The contact owns a 2016 Honda Odyssey. The contact stated that while operating the vehicle, the check engine warning light would remain illuminated. The vehicle was taken to the local dealer who diagnosed that pistons #1 - #3 were faulty and the spark plugs needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were notified of the failure. The failure mileage was 83,000.

- Shepherdstown, WV, USA

We purchased this 2016 Odyssey November 7, 2016. On July 16, 2020 I had to take the car into the Honda dealer. The vehicle jerked violently when I drive from a stop position to first, second and third gears. The dealer informed that it was due to defective brakes. I paid them $1,500 for the repair but it continued to happen. They informed that they could not duplicate the problems therefore can't fix it. On April 17, 2021 I have been getting multiple warning lights (fcw, ldw, check engine) which occur with sluggish engine performance. The engine will misfire and not accelerate as it typically does or shudders/jitters trying to accelerate. Diagnostic tool shows P0301 for misfire in cylinder 1 and P0848 for trans fluid pressure switch faulty. The dealer informed that we have defective piston rings which cause spark plugs misfire and foul. This will cost 5K and they will not guaranteed that it will fix it! My engine problems seems to be similar to the class action suit as per case no. 3:12-cv-1377-si. Unfortunately, it would appear that the defective piston rings issue was not resolved. I'm concerned that any replacement will result in the same issue again with continued driving. Honda dealerships are aware of the issue and Honda offers us very minimal assistance on the repair. However, they should be fully liable for selling cars with defective design, especially after the prior case. When this issue occurred, it put my family in an unsafe condition because vehicle suddenly lost power and the engine began to stutter. At this point my vehicle is undrivable and this has contributed to financial burden in an already difficult year due to the pandemic. Honda should own this issue for the 2016 model year through full compensation on repairs.

- Alexandria, VA, USA

My spark plugs keep wearing out due to a piston ring issue. The Honda dealers have informed my that after 100,000 I will need my piston rings replaced. This is an issue with Honda Odysseys. My vehicle idles hard and will not properly accelerate. It is a hazard on the roadway because I cannot accelerate as fast as I should and the vehicle loses engine power.

- Plainfield, IN, USA

The contact owns a 2016 Honda Odyssey. The contact stated while driving approximately 70 MPH, the vehicle jerked violently. The check engine warning light was flashing. The contact exited the highway. The contact called the local dealer and the vehicle was taken to be diagnosed. The contact was informed that the cylinder failed and the vehicle loss engine compression. The vehicle was not repaired. The manufacturer was contacted and informed the contact that the repair was not covered under warranty. The failure mileage was approximately 111,000.

- Woodhaven, MI, USA

The contact owns a 2016 Honda Odyssey. The contact stated that the check engine warning light was illuminated. The vehicle was towed to a local dealer where it was diagnosed but not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 87,178.

- Elk Rapids, MI, USA

We have been getting multiple warning lights (fcw, ldw, check engine) which occur with sluggish engine performance. The engine will misfire and not accelerate as it typically does or shudders/jitters trying to accelerate. Diagnostic tool shows P0303 for misfire in cylinder 3. I changed out the spark plug which was very fouled (saved it) and this fixed it for a few weeks and then it returned. Changed out all spark plugs but issues and code are back again after a few weeks.

- Lewis Center, OH, USA

Defective piston rings are causing spark plugs misfire and foul. The scenario seems to be similar to the class action suit as per case no. 3:12-cv-1377-si. Unfortunately, it would appear that the defective piston rings issue was not resolved. I'm concerned that any replacement will result in the same issue again with continued driving. Honda dealerships are aware of the issue and Honda us offers very minimal assistance on the repair. However, they should be fully liable for selling cars with defective design, especially after the prior case. When this issue occurred, it put my family is an unsafe condition because vehicle suddenly lost power and the engine began to stutter. At this point my vehicle is undrivable and this has contributed to financial burden in an already difficult year due to the pandemic. Honda should own this issue for the 2016 model year through full compensation on repairs.

- Green Cove Springs, FL, USA

Sudden loss of engine power while attempting to merge on a highway. Fortunately I had a shoulder to escape onto as I could not make it up to highway speed and could not merge. Found out afterwards that the cause was spark plug fouling as a build up occurs during eco mode as oil bypasses the piston rings on cylinders equipped with the Honda vcm (variable cylinder management) system. The build up continues until the engine begins to misfire and triggers the check engine light and the engine runs rough, stumbles and drives in 'limp along' mode. This problem has occurred multiple times (first occurrence 03/25/2019, latest occurrence 04/16/2020) and my local Honda service center has found diagnostic trouble code P0302 indicating a misfire condition in cylinder #2. Honda service people call it the 'piston ring problem' as it is a well know manufacturing defect that Honda describes in tsb 13-081 and resulted in a class action lawsuit (case no. 3:12-cv-1377-si) against Honda. The lawsuit was settled in 2014 and all 2008 thru 2013 Honda Odyssey models were covered and given an extended 8 year unlimited mileage drive train warranty in the settlement. Apparently the defect was not corrected in later models as my 2016 Honda Odyssey is now exhibiting the same exact symptoms. My Honda was 3 years old and had 69K miles at the time of the first occurrence. The problem has reoccurred multiple times and yet Honda has declined to cover the $3000 cost of replacing the piston rings (as recommended by the Honda service center) stating that my vehicle is out of warranty and my VIN is not covered by the settlement.

- Schaumburg, IL, USA

Initially noticed starting problem where car wont start. Then got a P060A code and vsa light noticed low battery and hooked up a battery charger. I noticed a clicking sound like the starter was engaging several times and all the cabin lights were on, all on its own. I have noticed the cabin light was on before when I first came to the car and I simply thought that kids opened the door before me. Now I am suspicious that the car is running the starter and turning on the cabin light is draining the battery. This issue might occurred earlier as I had to change the battery after about 2 yrs. After the car was bought new. This car is equipped with push button start.

- Corona, CA, USA

While making left turn accelerated after pressing the brake. This happened on a city street.

- Mission, TX, USA

I brought my car to a stop at a very busy intersection leading to a four lane road and the car wanted to lunge forward. I had to almost stand on the break to stop the car and the engine roared. I turned it off. I then started the engine again and it did the same thing. I waited a few minutes and started it again. This time it was ok. I had this happen last year and took it in to Honda. They could find no problem. This could cause a car to go into traffic if the driver was not paying attention.

- Aiken, SC, USA

Workmanship by Honda service and repair caused consequential damage to my Odyssey 2016 car, with less than 32K miles for now. Vehicle was timely serviced /repaired by fiesta Honda 6 times in less than 1.7 years. Registered a case with american Honda to offer complete repair, extended bumper to bumper warranty and out of the pocket expenses. American Honda and fiesta Honda refused to take care of the extended warranty and out of the pocket expenses and they have covered up the case and their mistakes, through just blame game. Per david Honda frisco, who checked the vehicle initially -"'cylinder block assembly: P3400/P3497 valve pause stuck off. Checked for low oil and oil level was over full. Also found burnt oil/sludge stuck all over dip stick. Removed valve covers and rear spool valve assembly and found oil passage in spool. Assembly clogged due to negligence. Oil is very dirty due to oil not being changed consistently.', when the engine light on may last week, I brought it to david Honda frisco, from frisco, fiesta Honda Honda towed the vehicle to san antonio and manipulated the case by american Honda and fiesta Honda. American Honda case manager was very rude and arrogant handling the case. American Honda and fiesta Honda is not explaining what they have done to the vehicle, they just say ready to pick up. Probably a miracle happened to this vehicle, how can we trust this vehicle, fiesta Honda and american Honda.

- San Antonio, TX, USA

The contact owns a 2016 Honda Odyssey. While driving at an unknown speed, the vehicle stalled and all the warning indicators illuminated. The vehicle was able to restart and functioned normally. The vehicle was taken to della Honda (702 NY-3, plattsburgh, NY 1290 (518) 563-7686), but was not diagnosed or repaired. The vehicle was taken to an independent mechanic and the technician informed the contact that the ignition harness needed to be replaced. The manufacturer was notified of the failure. The failure mileage was 17,000. The VIN was not available.

- Plattsburgh, NY, USA

(1)vehicle propulsion temporary shuts down when starting from a stopped condition. This happens as pulling across traffic, making left turns, etc. This could cause a serious T-bone accident. (2)problem is random and occurs without warning. (3)this shut down problem has occurred numerous times in less than 8,000 miles. (4)vehicle has been previously returned to jeff wyler dixie highway Honda dealership for firmware, etc. Fix. (5)they have not fixed this problem. It has again occurring. Most recently on 1/26/2018. It was severe enough that a side collision accident could have occurred in heavier traffic. We were pulling across four(4) lane traffic at an intersection without a stop light when the loss of power happened. Again, the engine seems to just quickly shut down and you quickly wonder if it will run before vehicle will again accelerate. A previous incident caused me to start to direct car to out of traffic area at end of median while making a left turn across traffic at intersection after acceleration stopped due to engine, etc shutting down. (6)documenting this in hopes of Honda Inc. Dealership, jeff wyler dixie highway Honda will permanently fix this problem before a serious accident occurs. (7)this problem and information is also being documented in case a serious accident does happen and can provide myself or estate survivors with documentation to sue the principals involved.

- Bagdad, KY, USA