I was pulling into a drive through on December 6, 2020. As I applied the brake (I drive with one foot - my right foot) with my right foot, the engine revved up and the van moved about 5 feet forward as I increased the brake pedal pressure. I then shifted into neutral. The engine went to red line. I pushed the power button. No one was injured, and the vehicle didn't touch anything as the drivethrough ahead of me was empty. The day before, the ldw and fcw fail light came on in the dashboard while my wife was driving. We have taken the van to the local Honda dealership for a checkout / diagnostics of what happened. Honda has opened a case on this for us: Case is 11754879. No pictures or video available, unfortunately, although I am checking with fadi's at 12360 westheimer road 77077.

- Houston, TX, USA

I was driving 70mph on an interstate. The battery light came on. There was no immediate change in vehicle performance and there were no odors present so I continued driving for several minutes towards the next exit. About.5mi away from the exit, the ABS, fcw, ldw, and brake lights came on, the air conditioner and console turned off, and the automatic transmission disengaged. This prevented the vehicle from being able to accelerate. The entire vehicle essentially lost power. The local dealer diagnosed the issue as an oil leak in the spool valve that then destroyed the alternator and fried the battery. The manufacturer (Honda) recenty issued tsb 20-023 detailing the problem and repair procedure, but it was limited to the source of the leak, not any of the other components that were damaged. My understanding of the incident leads me to believe a fire could have broken out due to the location of the leak onto the other engine components.

- Radford, VA, USA

(2014 Honda Odyssey ex-L). On fri, 02-21-2020, 3:47pm, I was slowing to stop at intersection. Before coming to complete stop, engine began to shudder, but did not completely stall/stop, and the mil indicator illuminated. Engine continued to shudder while idling at complete stop. I gently applied acceleration to 10-mph. Engine continued to shudder as I continued and stopped at another traffic light. Again I gently applied acceleration. The engine continued to shudder until I found a safe place to park and switched it off. The engine shuddered at a consistent level for a total of about 8-minutes. I called my local Honda service dept to ask about possible causes and if the vehicle was safe to drive. The service rep asked me about a previous repair noted on his computer for an issue the van had regarding the replacement of an oil sensor in October 2019, and if it was related. I told him I didn't know. Since he couldn't identify the problem, he advised me not to start the engine and drive because it could possibly cause more damage, and the vehicle was not safe to drive. Then I called roadside assistance and my van was taken to my Honda service dept. On the following Monday, a service rep called me with the diagnosis code P0303, which he said indicates that a misfire was detected in the #3 cylinder. The rep said that this issue allowed oil to pass by the multiple oil rings on the piston into the chamber and fouled the spark plug. He told me that this issue was not covered by the warranty. The service rep quoted $4,420 to repair obdii code P0303. I asked him if the malfunction could have been prevented. The service rep said that this problem is not a result of any driver action or lack of maintenance. He said that Honda is aware of this problem and I should call american Honda automobiles (800-999-1009).

- Millbrook, AL, USA

The contact owns a 2014 Honda Odyssey. The contact stated that the vehicle decelerated while driving and the engine warning indicator illuminated, which meant that the fcw and ldw systems failed. The vehicle was taken to an independent mechanic and who diagnosed that the spark plug needed to be replaced and the cylinder was leaking oil, which caused the spark plug failure. The vehicle was repaired, but the failure recurred on three different occasions. The vehicle was not taken to a dealer. The contact stated that the mechanic called the dealer and was informed that the 2013 models were experiencing the same failure. The manufacturer was made aware of the failures and informed the contact that there was no recall and that the vehicle was out of warranty. No further assistance was provided. The failure mileage was approximately 216,000.

- Mansfield, TX, USA

The transmission is not smooth at all. Rough and delayed shifts. My car minivan only has 35,000 miles on it.

- Hoffman Estates, IL, USA

The contact owns a 2014 Honda Odyssey. While driving, the check engine indicator illuminated. The vehicle was taken to an independent mechanic and the spark plugs were changed. The failure recurred. The vehicle was taken to another independent mechanic where the number one spark plug was covered with oil and changed, the oil was refilled to the proper level, and another spark plug was replaced. The failure recurred. The vehicle was taken to scott Honda of West chester (706 autopark blvd, West chester, pa 19382) where the contact was informed that it would cost over $3,000 to replace the piston rings and clean the pistons. There was an extended warranty that covered earlier models, but the manufacturer stated that the contact's vehicle was not included. The failure mileage was 103,000.

- West Grove, PA, USA

2014 Honda Odyssey which is experience the same issue as the 2013 Honda Odyssey where piston ring 1 -4 with leak oil and foul the spark plugs. When this occurs the engine misfires and vibrates significantly and reduces drivability. Due to the warranty extension on prior years this appears to be a known design defect for this model and engine but not for this model year. When the issue has manifested it has been when driving both times has been on a city street. Estimates for repair are $4,200.

- Grayslake, IL, USA

P0303 misfire burning oil causing oil loss and misfire on cylinder 1-3

- Blaine, MN, USA

Driving on the highway, check engine light started flashing and car begin misfiring. Had to drive very slow because of the safety issues related to misfire for a few miles to get the car off the highway. Got car to repair ship and they replaced all spark plugs because they were in bad shape and one no longer worked. The car ran fine after that. 4 months later while on highway same misfire happened. I took car to Honda dealership and said the O-rings need replaced. They tried to get Honda to pay for repairs because they said it's the same issue that led to a class action lawsuit for 2011-2013 Honda Odyssey. In that case the "piston rings in certain cylinders may rotate and align, leading to engine oil consumption and spark plug fouling." Honda of America said they would not pay to fix my vehicle even though its the same issue.

- Elida, OH, USA

Bought 2014 "?" Honda Odyssey delivered September 01,2 013, Jan 18,2018 replaced 1coil. April 27, 2018 37000 miles replaced 3 fouled spark plugs,1 coil Dec. 27, 2018 40576 miles missfire, replaced 6 spark plugs. May 1, 2019 42364 miles replaced 4 fouled spark plugs.,3 cylinder piston rings.dealer was going to charge me but changed their mind and charged M $84 for shop supplies, and no loaner. We rented a car. I think this car is a lemon. Vcm engine (stupid technology)

- Dania Beach, FL, USA

Check emission message on dashboard with the check engine light on. On checking the codes via obd - it shows P3400 bank 1 valve stuck error code pointing to a faulty oil pressure switch. I check the engine oil level using the dipstick which shows the oil levels are within the limits on the stick. The dashboard message (check engine light + check emissions msg) suddenly appeared while driving on a warm afternoon at 45mph (about 15 minutes into the ride).

- Friendswood, TX, USA

The contact owns a 2014 Honda Odyssey. While driving 65 mph, the check engine warning indicator illuminated and the vehicle started to lose speed. The contact pulled the vehicle over to the side of the road and then driven to waldorf Honda (2450 crain hwy, waldorf, 20301). The dealer stated that the engine failed and needed replacement. Initially, the dealer stated that the repair would be covered, but later stated that it was not covered under the class action lawsuit. The manufacturer was notified of the failure. The vehicle was not repaired. The approximate failure mileage was 75,000.

- Waldorf, MD, USA

ECM is running roughly

- Dacula, GA, USA

The engine light comes up and engine is buring oil. Dealership checked after 500 miles and said it is burning oil. Told me to keep checking oil level and if low top it off till the next light comes up so that they can get diagnostoc code. Does not make sense. This is a new van and purchased new and 2 years back and now has only 31000 miles.

- Cincinnati, OH, USA

I stopped the vehicle on an inclined street to talk with a neighbor. He asked me to look at something so, I turned the ignition off not thinking the gearshift was still in the drive position. After the engine stopped I started to exit the car when it began to roll. I applied the brakes then restarted the car and shifted into park. This is a safety issue requiring a recall before somebody gets injured or killed.

- Easthampton, MA, USA

I was slowing down to perform three-point turn to park in garage. Slowly (<5mph) approaching end of first arc, I pressed the brakes to stop. It was snowing and slippery, and there was a slight skid of vehicle. I pressed harder on brakes to stop, which resulted in revving of the engine and crash of vehicle into wall/garage support. I looked down to confirm my foot was only contacting the brake pedal. I placed the vehicle in park to comprehend what had just occurred. I placed the vehicle in reverse to complete 2nd arc of three-point turn, and completed parking in the garage.

- Brookfield, WI, USA

The contact owns a 2014 Honda Odyssey. The contact stated that the vehicle stalled and the check engine warning light flashed constantly. In addition, the rpms decreased, there was a loud noise coming from the vehicle, and there was a drastic reduction of speed. The vehicle was also shaking and vibrating, which caused the contact to be unable to control the vehicle. The vehicle was taken to the dealer on two occasions where the failure was unable to be determined. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 7,774. MA 10/5

- Damascus, MD, USA

I was in traffic and driving a steady 50 mph when the engine suddenly shutdown. After I realized what the situation was I placed the transmission into neutral, steered the car off the road as soon as it was safe to do and stopped. I just had the engine oil and filter replaced when this event happened 3.7 miles from the repair shop. I suspected a problem with the oil change. After stopping I checked for oil under engine (none) and then checked the dipstick (full). I had the van towed to the shop where their personnel checked under the engine for an oil leak and then checked the dipstick as I had done. They told me to take the van to Honda. It"S been a week and Honda said I need new heads for the engine because the timing ?jumped?. the oil change had no effect on this failure. So far, nobody at Honda can tell me what actually caused the timing to ?jump". the total repair is being done by Honda and is covered by the Honda's new car warranty. I've never had any kind of problems with this van prior to this unexpected and sudden failure.

- Easthampton, MA, USA

This is the second incident I have had where the engine began racing as I was applying the brake. As I was slowing to park the car at work when I felt the car surge as I was applying the brake. I pushed hard on the brake and found the car racing at 2000 RPM. I was able to fumble for my cell phone and get a short video of the racing engine. As I was filming I moved my foot slightly on the brake and car came out of the racing condition and settled to a normal idle. I took the vehicle into the dealer the next day and again they said they could not find any issues. They implied that they wanted their regional person to evaluate the car but I have not been contacted since taking the vehicle in.

- Glendale, AZ, USA

As I was coming to a stop light I took my foot off the accelerator and began applying the brake. As I was applying the brake the car felt like it was surging so I pressed harder on the brake. At this point the engine was racing at full speed erratically. I put the car in park and shut off the engine. I restarted the car and everything was normal. I took the car in the next day to the dealer. While I was there another customer overheard me talking to the dealer and he stated his mother's 2013 Honda Odyssey had a similar experience where the engine started racing while stopping. The dealer could not find any issues with the car and performed all dtcs checks. I told the dealer that on two or three previous occasions I felt the car surge while braking but in these instances the engine did not stay racing. This incident was very upsetting as the car could have taken off on its own if I took my foot off the brake.

- Glendale, AZ, USA