Engine And Engine Cooling Problems of Honda Odyssey - part 1

While driving down an interstate going approximately 70 mph, the engine, all of a sudden started losing power and showing a check engine light. I immediately pulled over to a safe location. Check the oil which appeared okay and called a tow truck. Bring my vehicle to a local shop. The shop did some inspections and found that there was some failures on the connecting rods. Nothing else has been done at this point.

See all problems of the 2018 Honda Odyssey 🔎.

The idle stop system frequently fails to restart the car after shutting down the engine at a stop light. In some cases the car is difficult to restart using the starter button. In other instances the car restarts and then dangerously lurches forward.

See all problems of the 2025 Honda Odyssey 🔎.

We've been experiencing issues with the auto idle stop feature (the auto restart in particular). On multiple occasions, the vehicle will automatically turn off the engine while stopped in traffic, but will fail to start back up, requiring the driverto manually turn the vehicle off and back on via push button starter (sometimes multiple restarts is necessary to get it moving again). This seems very similar to the investigation referenced under - ea25004.

Auto start stop not working. This is happening quite a lot where there auto stop in activated and then the car wont start back. Resulting in the car having to be completely restarted.

Engine would not restart after the idle stop at a traffic light. I needed to put the car in park and turn the engine off and restart it. Shortly after this, at another traffic light, the idle stop caused a delayed restart of the engine and caused the vehicle to lurch forward suddenly. This has happened once before as well.

While waiting at a red light with foot on the brake, the auto idle stop system shuts off the engine but fails to restart it when the foot is lifted off the brake, causing stalling. The vehicle has to be put in park and turned off completely and restarted before it will drive. This has happened twice, once on 5/1/26 and today on 5/7/26.

When I am stopped at an intersection, my 2025 Honda Odyssey will often automatically stop the engine as part of its auto idle feature. However, three times in the last month, my car has stalled when it's time to start the engine. One time was on a highway when I was stopped at a light, and cars started honking and driving around me (including on the shoulder). Only after I turn the car off and turn it back on, can I start driving again.

The contact owns a 2016 Honda Odyssey. The contact stated that while parking the vehicle began to experience cylinder misfiring and vibrations and the check engine light had illuminated. The vehicle was driven to the local dealer who diagnosed the engine cylinder piston rings had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not yet contacted. The VIN was not available. The failure mileage was 100,000.

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On may 2nd, we drove our 2019 Honda Odyssey xl-e to church, and as soon as we pulled into the parking lot, we started to see smoke coming from our front hood. We exited the car. Within 30 seconds, the car then went into flames, and exploded and the car is now unsalvageable. When I went online, it seems like this is a common occurrence with these Honda Odysseys. There were no warming lamps, messages, or lights that would have alerted me that something this serious would occur. We have taken our care to Honda for years for regular maintenance. We don't take it to any independent shops. Strictly to Honda for years. The most recent checkup/service was performed on February 11, 2026 where they performed the following services which they had recommended. 1) oil change 2)engine coolant flush with conditioner 3)transmission fluid change: 4) wheel alignment 5)fuel tank additive, throttle body service, and injector. This is serious safety event and our family and children could have been killed in this accident. We have pictures, videos, police report, and the car has been taken to a salvage yard. We have filed a claim with state farm.

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While idling, the engine shuts off completely and requires the vehicle to be shifted into park and restarted before operation can continue. On multiple occasions, the engine has struggled to restart and cranked for several seconds before turning over. Honda of tomball in tomball, TX currently has it. This defect creates a significant safety hazard because the vehicle loses power unexpectedly while in traffic. The vehicle is immobilized until it can be shifted into park and restarted, leaving us vulnerable to collisions or other accidents, particularly in busy intersections or congested roadways, and creates a serious safety risk to our family, children, and our daughter’s service dog. The vehicle has been presented to hot multiple times for diagnosis and repair. This defect continues to happen. Hot has inspected this during multiple repair visits. To our knowledge, the manufacturer has not directly inspected the vehicle. (I have requested it with both Honda of tomball and Honda of America. ) no warning lamps or dashboard messages appeared prior to the stalling events. The failure occurs without warning while the vehicle is stopped in drive. The primary symptom is sudden engine shutdown, followed by difficulty restarting in some instances. This issue began shortly after delivery of the vehicle and has continued intermittently. First documented time of problem was September 2025. Most recent is may 2026.

I have encountered several instances where the vehicle goes idle at a spot light as expected. However the vehicle fails to restart when letting off the brake. Instead, the vehicle shifts into park. Once the vehicle shifts into park, I am unable to shift into drive. I must restart the vehicle and try en shift into drive. This is extremely dangerous and has happened multiple times. This vehicle is one year old and has 9k miles.

The auto-idle off feature - yes the stall happened in a situation where cars behind me would have expected me to start moving and could have resulted in a rear-end collision. The vehicle has stalled like this three times. The other two times were not in public or traffic situations. It has not been reproduced or confirmed by a dealer or service center. It has not been inspected by anyone else. There were no warning lamps or messages prior to the failure, only after.

The vehicle's auto idle stop system is malfunctioning, resulting in the engine failing to restart from a complete stop. This total failure has occurred on five separate occasions, including while stopped in active traffic intersections. Prior to these total restart failures, the vehicle showed the following symptoms: 1) initially, the vehicle experienced rough engine idling, abnormal vibrations, and a raw gasoline odor after driving. 2) this progressed to a noticeable delay between releasing the brake pedal and the engine attempting to ignite, during which the starter sometimes sounded strained. 3) this has culminated in the current defect where the engine shuts off normally when stopped at an intersection, but completely fails to immediately restart when the brake is released. This defect completely immobilizes the vehicle in active traffic lanes, exposing us to an immediate and severe risk of a rear-end collision. When the engine fails to restart, the vehicle locks the transmission out of drive and triggers a warning on the dashboard. It is a highly hazardous situation, especially with a lot of distracted drivers on the roadways.

I've had several incidents of my car stalling occur since the purchase of the vehicle over the span of 16 months, probably around a dozen times or so. I will stop at a stop light and the vehicle's idle-stop system does not function properly. The vehicle shuts off but does not auto-restart. When I try to manually restart, nothing happens. There have been times where it took several times before the vehicle started back up. Even more seriously, I've stopped in the middle of traffic and the same thing happened. We have had a couple of very scary incidents of cars having to move over a lane to pass our idle vehicle. Thankfully no car hit us due to our idled vehicle. We have owned this vehicle for less than 1. 5 years and have had two battery replacements. I've also had the vehicle not start from my garage or parking lot. When I try to start the vehicle a second time, there are times where the start button feels very firm and doesn't push down easily. I have to push the start button several times before the vehicle starts. I'm grateful there have not been any major accidents occur but this is an extremely unsafe situation for the driver and their passengers.

I bought this car from a dealer in November of 2025 just over 95k miles. Two weeks after I bought it a po303 code for a cylinder 3 misfire appeared. I changed the spark plug and the code went away. Then on Friday, April 10th, the code came back. I replaced the spark plug for a 2nd time. The code disappeared again. Then, on April 25th the code returned and I replaced the cylinder 3 spark plug for the 3rd time. After replacing the cylinder 3 plug for the 3rd time I took the car to an auto mechanic in my area. After their diagnosis I am looking at either repairing the current engine at a cost of 4500 dollars or replacing the engine at a cost of 7-8k. I believe my engine issue is the very same issue that 2011-2013 3. 5l v6 Honda engines suffer from that resulted in a lawsuit and settlement.

See all problems of the 2015 Honda Odyssey 🔎.

My 2024 Honda Odyssey ex-l has a recurring auto idle stop failure. About 1–2 times per week, when stopped at a light and auto idle stop engages, the engine fails to restart properly when I release the brake. The engine sputters or shuts down, the battery warning light comes on, and the vehicle shifts itself into park. I then have to hold the start button for several seconds to restart the engine. This creates a safety risk because the vehicle becomes disabled in active traffic when the light turns green. The vehicle was previously taken to a Honda dealer for this issue, and the battery was replaced, but the problem continues.

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When accelerating from a stop position while pushing on the accelerator the vehicle will not move. Takes a couple seconds. Almost struck by oncoming car when attempting to turn left onto main road. Happens frequently. Next: left sliding passenger door doesn’t close all the way then opens back up. Takes several attempts before it decides to close or with my assistance. Third: rear cargo door shuts without me pushing the button. Alarm sounds and immediately shuts. Been hit in the head once while closing. I’ve seen complaints about this and Honda is apparently aware. Last; the car will inadvertently emergency brake when an oncoming vehicle approaches from the front. Very disturbing when traveling at any speed going into an instant stoppage.

Many, many times vehicle stop/start feature has failed to start car. Have been stranded at busy intersection having to put car in park and restart car. Extremely dangerous. Took car to dealer and they deny there are any problems.

2024 Odyssey sport VIN [xxx] in the drive through lane at a reataurant activated the auto start stop feature and shut off the van. The van did not restart when trying to move foreward again and had to cycle the starting ignition system via placing van in park and pressing the start button. Taking the van to the hennesey Honda dealer in woodstock GA for inspection. Thank you [xxx] [xxx] [xxx] or [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Starter failed to resume engine operation when auto start/stop disengaged motor at a stop light. This resulted in the vehicle being briefly inoperable after the light turned green, requiring other motorists to go around and leaving the vehicle stalled until engine functionality was resumed. Issue was reproduced by dealership, starter motor was deemed defective and was replaced under warranty. Vehicle had rough starts when resuming from auto stop for at least a week leading up to this incident.

The contact owns a 2020 Honda Odyssey. The contact stated that the vehicle made an abnormal ticking sound while depressing the accelerator pedal, and the engine made a loud sound. There was no warning light illuminated. Upon investigation, the contact related the failure to NHTSA action number: pe25008 (engine). The vehicle was taken to the local dealer, where it was diagnosed and there were metal shavings found in the engine oil. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and confirmed that there was no recall or warranty coverage for the repair. The failure mileage was approximately 85,000.

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This is the second time I have taken it to the dealership. When sitting at a stop and the automatic stop and start happens, it acts like it does not want to crank back up. Last time the dealership said it was the battery; they replaced the battery, but that has not fixed the issue. If I am at a stoplight and it does not start back, that is not a good feeling my wife now does not want to drive the van anymore because of the seriousness of this issue as well has having young children in the car. This is a van that was bought brand new and has been in the shop more than it has been driven.

Multiple times of driving the vehicle as I am trying to press the gas pedal while driving it acts like it is not working and suddenly it stutters and stalls. The car will shut off and put you into to neutral while you try and pull over to the side of the road without being hit. It happens randomly and without rhyme or reason. After it shuts off codes are thrown such as brake failure, emissions failure, hill assist failure, steering failure, and lane assist failure. The car will be really hard to restart and if eventually will and then everything will disappear and go back to normal. Codes leave and car drives fine until it messes up again. First time it happened was months ago from this report, and then it happened monthly, weekly and now almost daily but only when you try and drive. Very unsafe and there’s no reason cars should stall at high speeds going down interstates!.

The engine malfunctioned, and the car is available for inspection upon request? my safety was put at risk because the car was backfiring in traffic due to the spark plugs filling up with oil. I reported the problem to the libertyville Honda because they sold me the vehicle about 35 days before the issue started, but I have not heard back from them. I had the Odyssey inspected at napleton Honda in oak lawn. They informed me that piston rings 1-3 needed to be replaced . They also informed me that due to malfunctioning piston rings at least one of the spark plugs was full of oil. The car also needs a new oxygen sensor and this could also be caused by the engine malfunction. No warning lights came on prior to the failure.

See all problems of the 2008 Honda Odyssey 🔎.

When idle start/stop function is engaged and then goes to restart, the engine hesitates or fails to restart all together.

Our Odyssey is equipped with idle stop. Sometimes when idle stop engages, the engine won't start again afterwards. We need to turn the car off completely, and then try again. Usually it turns on after doing so. We try to always turn off the idle stop when we start up the vehicle, but sometimes forget. This hasn't led to an accident yet, but has led to some angry vehicles when we can't move when a traffic light turns green. To be clear, this was not an isolated incident, but happens somewhat regularly if idle stop isn't turned off. Honda dealers have told us they don't have any fix, and have recommended that we could purchase a third party "idlestopper".

Our 2015 Honda Odyssey van has bad piston rings 1-3. The check engine light and all of the lights are on in the vehicle is not driving and idling poorly. This is the second time it has happened. The first time was under warranty at 112,000 miles, and now the van has 179,000 miles. There seems to be several recalls and known problems and warranty was extended last year, but we just missed it. The code is p0301. I took it to the Honda service and the spark plugs are fouled.

The contact owns a 2015 Honda Odyssey. The contact stated that while driving at various speeds, the vehicle would hesitate to accelerate as intended while the accelerator pedal was depressed. The check engine warning light illuminated. The vehicle was towed to a local dealer, where it was diagnosed with a piston ring failure and related the failure to Honda service bulletin:25-061. The vehicle was not repaired due to cost. The manufacturer was made aware of the failure. The failure mileage was approximately 160,000.

I was driving to work on April 7th, 2026 and parked the vehicle at my company parking lot. Prior to parking, I noticed unusual smell and then parked the vehicle. I parked the vehicle around 8. 10 am and I got the call from my facilities manager around 8. 30-8. 40 am that my car caught on fire and by that time I noticed houston fire department extinguishing the fire. There were no check engine sign and this vehicle is a brand new vehicle when I purchased. Though there is no recall associated with my VIN #, the fire issue is similar to recalls for 2019 Honda odysey. The recall numbers are 23v-751( engine fire recall) & 20v-066 ( electrical wiring fire recall).

[incident description & manufacturer's bad faith] on April 6, 2026, an authorized Honda dealership (mcconnell Honda in montgomery, al) diagnosed my vehicle (2019 Honda Odyssey ex-l, 143,097 miles) with dtc p219a (rec replacing fuel injector set and fuel feed pipe at this time), requiring a fuel injector replacement. This exact mechanical failure is documented in Honda’s official service bulletin 21-010. The bulletin acknowledges that defective fuel injectors can cause engine misfires, loss of motive power, and engine stalling while driving. These conditions present an immediate and severe safety hazard. Honda established a 150,000-mile warranty extension limit for this defect in TSB 21-010. My vehicle has 143,097 miles and is well within this limit. However, american Honda corporation has arbitrarily refused to repair the vehicle. Furthermore, on April 21, 2026, the assigned Honda case manager left a voicemail officially denying the repair. He explicitly refused my repeated requests to provide this denial in writing. In the voicemail, he falsely stated that my vehicle at 143,000 miles is "well outside the range" for assistance, directly contradicting Honda's own written 150,000-mile bulletin. Please review the attached documents, including the official dealership diagnostic report (dtc p219a), the repair estimate, and a copy of TSB 21-010. I have also secured the audio recording of the case manager's voicemail to prove their bad faith. Honda is knowingly leaving a dangerous vehicle with a confirmed, documented fuel system defect on the road, while actively providing false information to the consumer to avoid repair costs. I strongly request the NHTSA to investigate Honda's deceptive and dangerous practice.

The auto idle stop did not restart the engine and the van stalled in traffic multiple times. Temporary fix it to turn off auto idle stop every time we start the van.

See all problems of the 2022 Honda Odyssey 🔎.

Upon coming to a complete stop, the engine has failed to reengage causing the car to stall in traffic. The car has restarted after being turned off and restarting but with traffic moving all around us and cars behind honking because they think we are failing to go. If we happened to stop in an intersection it could be even more dangerous. This has happened 3 times so far I. The past couple of months. At first I thought we accidentally pressed a wrong button or did something that caused the engine to stall, but upon research and talking to others with Hondas this appears to be a known issue. I am taking the car to the dealership on 4/10/26 to get looked at. There was no warning light or error messages prior to to happening. We bought the car new and it has only 10,000 miles on it.

Our 2018 Honda Odyssey repeatedly and without warning completely loses acceleration power, creating extremely dangerous driving conditions. This occurs in two distinct situations:(1)while driving at highway speeds when attempting to change lanes or accelerate, and(2)when stopped at a stop sign or intersection and pressing the gas to merge into or turn into traffic. In both situations, pressing the accelerator results in little to no response — the vehicle will roll but fails to accelerate as needed. These failures have placed our family in multiple life-threatening situations. On interstate 285 in atlanta, georgia — one of the busiest and highest-speed highways in the country — our vehicle has failed to accelerate during lane changes on multiple occasions, nearly causing serious accidents. Most recently, within the past week, my husband was driving on I-285 when he pressed the accelerator and the vehicle had absolutely zero acceleration response. He narrowly avoided a collision. We have also experienced complete loss of acceleration when turning from a stop sign into traffic and when merging — situations where immediate acceleration is critical to safety. The vehicle lags for several seconds before any power is delivered to the wheels, leaving us dangerously exposed in oncoming traffic. All manufacturer recalls have been completed, including the fuel pump recall. The problem persists and has not been resolved by any dealer service or recall repair performed to date. We are aware that this is a known, widespread defect affecting 2018 Honda Odysseys equipped with the zf 9-speed automatic transmission. Hundreds of other owners have reported identical symptoms to NHTSA and to Honda directly. Honda has acknowledged the transmission's behavior to some owners but has stated it is "how the car is supposed to drive" — a response that is wholly unacceptable given the documented near-accidents this defect is causing. We are requesting that NHTSA open or expand its investigation.

In November 2024, the engine of my 2015 Honda Odyssey misfired and I had all spark plugs replaced. The vehicle had 102, 171 miles on it. The issue was resolved at that time. On April 1, 2026 the engine misfire returned, check engine light came on and the repair shop advised that again the engine is having the same issue. The vehicle now has 117,000 miles on it. This does not appear to be an isolated case as I have read several other similar complaints.

All of this has been diagnosed and confirmed by richfield-bloomington Honda. It is a catostrophic failure of the motor. Cylinder 6 is misfiring. They are recommending a full motor replacement. Last year, I had the piston ring issue on this car and the dealership had to rebuild the motor. The van has about 125,000 miles on it and is good service, including the repaired motor. We are the single owners of the vehicle. After this happened, Honda corporation was notified, a case was open by both the richfield Honda dealership where we purchased our vehicle and by our family. Both were denied. This was a huge safety issue. I was driving home and the check engine light started blinking and the car started shaking. I pulled up to the nearest mechanic (4 miles). They recommended towing it the 200 miles to where I had engine work done the previous year. I was stranded in iowa during this and at the goodwill of some local helpful folks. Luckily, I did not have my kids and I did have cell phone reception where the light went off. This same motor has had two huge, vehicle-totaling issues in the last two years.

See all problems of the 2014 Honda Odyssey 🔎.