2025 Honda Odyssey Complaint Log

The contact owns a 2025 Honda Odyssey. The contact stated that while stopped at a traffic light, the contact released the brake pedal and depressed the accelerator pedal; however, the vehicle failed to respond. The contact believed that the failure was related to the gas saving feature. The vehicle then stalled, but was able to be restarted. The vehicle was not taken to a dealer or independent mechanic to be diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 11,390.

The vehicle experiences abnormal vibration and shaking felt from the rear during braking at moderate to highway speeds. The condition does not occur during steady driving and is isolated to braking events. An authorized dealership inspected the vehicle and documented rear brake rotor thickness variation but no repair was performed. The issue has continued and raises concerns about braking stability and safety, especially at higher speeds.

My van is a 25 Odyssey Elite with 18K miles. On several occasions, when I have been stopped at a stoplight and the idle function is activated, the vehicle doesn't auto restart and often it must ben put back into park and restarted. This has worked with a bit of effort. It typically is not just a push of the button but rather some sputtering, several attempts at pushing the ignition button and then and eventual start. Today I had it happen again and had a challenge getting it restarted and this time I noticed that the battery red light came on along with some other warning lights (I don't remember which ones as I was panicking to get going an not hold up the line of cars behind me.

Over the past month, I have experienced several incidents where my 2025 Honda Odyssey’s Auto Idle Stop (AIS) system failed to restart the engine after stopping at traffic lights. Each time, the engine did not turn back on when I released the brake, leaving me stalled in traffic and prompting error messages on the dashboard. There is currently no way for owners to permanently turn off this feature. When I took my vehicle to the dealership, I was told my starter was already having issues despite the car having less than 10,000 miles on it. This ongoing problem has made me concerned for my safety and the reliability of my vehicle.

When the Auto Idle Stop is engaged, I have now had 3 instances of the engine completely stalling when at a stop. Not only has the engine stalled, but I have difficulty getting the engine to restart. It has been very scary, as it has left me disabled at busy intersections while I struggle to get my van to start so I can move and pray nobody hits me while I sit there. I've even had to open the driver's door to get the van to restart. We've made a habit of manually turning the auto idle stop feature off every time we drive it. This problem has not occurred when the feature is turned off. The first incident of this was several months ago, and I already took it to my local dealer but they couldn't replicate the issue and did nothing about it.

Vehicle shuts down and will not restart. So far this has happened three times. After a long delay, took foot off gas, held brake and pushed start and would not start. On third attempt vehicle was very labored on start

My 2025 Honda Odyssey has been completely shutting off after the stop-start shuts the engine off. When the car actually “stalls” is when I let off the brake and it’s time to start going. Then I hear a ding, the dash lights come on, and I have to frantically hit the ignition button. This is happening at stop lights where there is the risk for other cars to safely go when the light turns green. I have to completely shut off the car and restart the engine while traffic is going on green.

Idle stop engine turned engine off at a stop light. When the foot was removed from the brake pedal the engine struggled to start up. It took several attempts to get the engine to start up. This has occurred before and the dealer replaced the battery. However, it is now happening again. There were no warnings .

I stopped at a stoplight and the auto shut off took place, when i tried to take my foot off the brake to start the car, the car did not restart. I stalled at the light with cars behind me and my children, the dash displayed a message saying system problem and flashed I did not get a photo . I shut the car off with the brake and the start button and tried starting it twice, Finally the car restarted and I drove home. Something is wrong with the AIS and it put us in danger

I was stopped at a stop light and the idle stop function activated, turning off the engine, as designed. However, when the light turned green and I released the brake, the vehicle stalled out. I had to completely turn off the vehicle and restart it.

The idle stop feature sometimes fails to reengage / restart the engine. One time, the van failed to restart and the vehicle completely locked up while I was in an exit ramp to the freeway. I had to turn the van off and turn it back on to get it to shift into drive and go. Similar events have happened a number of times, since the summer of 2025. We have taken it to the dealer twice now, and have been told to "monitor" it. We found the NHTSA report #EA25004 and believe this is the issue we are experiencing. Occasionally, the idle stop will restart, but it's a very violent restart (car sputters and chokes in restart, sounds like it might stall). The car will make a warning light flash and give an error message, but it always clears too quickly to read it.

When the vehicle is stopped, and the auto-shut off engages, the vehicle will turn off, and the vehicle has to be restarted. Quite dangerous when in traffic and the vehicle is dead due to the auto-shut off not starting again. The fix is believed to be an updated starter engine computer and starter motor.

My wife and I purchased a new 2025 Honda Odyssey Van as it currently has about 11,000 miles and we both have noticed a front end vibration/rattle/noise that can be heard and felt in the steering wheel at varying speeds in the front suspension which leads me to believe as an engineer there are issues with sway bar end links, bad strut mounts, or loose control arm bushings that are especially noticeable over any bumps. This issue could pose a serious safety issues in dealing with failed suspension or steering that could cause a potential wreck or loss of control of a vehicle and result in a product liability suit for all parties involved especially given suspension and steering are considered critical auto parts in nature. The problem has been reproduced with my making an appointment at Watermark Honda located at 3201 Park Ave, Paducah, KY 42001 on November 19th, 2025 with the Master Service Tech Caleb Buchanan and Service Advisor Harley Littrell both driving the vehicle and acknowledging the noise and vibration. I also have any recorded video while driving at 5-10 mph in the parking lot of Watermark Honda that was shared and viewed by Harley Littrell. The vehicle was inspected with some strut bolts and other front end component bolts being torqued down the same day with the issue not being resolved. Harley/Caleb noted that they were dealing with the same issue on another 2025 Honda Odyssey on the lot to be sold and they were trying to address issues. As of follow-up appointment on 12/11/25, Harley noted this van had several front end parts replaced and it still made noise with this van not being able to be sold to the public. I was advised by Harley to contact American Honda and to file this report. See uploaded video below.

COMPLAINT: 2025 HONDA ODYSSEY AUTO START/STOP SYSTEM FAILURE Component Failed: Auto start/stop system fails to restart engine after automatic shutdown. Vehicle available for inspection. Appears related to investigation INOA-EA25004-10033. Safety Risk: Vehicle has failed to restart approximately 12 times since May 2025, all at intersections with active traffic. When auto start/stop engages at stoplights and fails to restart, the vehicle remains stationary and blocks traffic lanes when lights turn green. This creates hazardous conditions where other vehicles must maneuver around a stalled vehicle in intersections, risking rear-end collisions and traffic disruptions. Dealer Confirmation: Yes. Authorized Honda dealership tested battery (good), contacted Honda customer support directly. Honda acknowledged the issue but provided no diagnostic solution or repair procedure. Dealership's only recommendation was to manually disable auto start/stop every time the vehicle is operated. This is unacceptable for a new vehicle and defeats the purpose of this factory system. Manufacturer Inspection: Authorized Honda dealership consulted with Honda customer support. No fix or remedy provided. Warning Symptoms: None. No warning lamps or dashboard messages appear before or during failure. Auto start/stop system operates normally until restart phase, then engine fails to restart. First occurrence May 2025. Problem occurs intermittently.

Stopped at red light. Auto start/stop engaged. Light turned green let off of brake and pressed gas. Engine did not start. Couple seconds later engine started.

6 month old new Car stalled out at red light Took a few minutes to restart Think it had to do with idle start/stop

Dear NHTSA, I am submitting a safety complaint regarding my 2025 Honda Odyssey, which has been diagnosed with a transmission failure requiring full replacement due to faulty internal seals. The vehicle is less than one year old, and this type of premature failure raises serious safety concerns. I first became aware that something might be wrong during a routine oil change on November 11, when technicians noticed signs that the transmission might be leaking or malfunctioning. I continued to monitor the vehicle, and on November 28, I was informed that the entire transmission must be replaced due to faulty seals inside the transmission assembly. A critical component like the transmission should not fail this early in the life of the vehicle, and a structural defect such as faulty seals may indicate a manufacturing issue that could affect other vehicles of the same model and year. Information from the dealership: SHEEHY HONDA OF ALEXANDRIA Diagnosed transmission failure caused by faulty seals Recommended repair: Complete transmission replacement Explanation: Premature failure of internal transmission seals leading to fluid loss and unsafe operation Repairs completed so far: Diagnostic inspections confirming failure This vehicle is used to transport children, and a sudden transmission failure presents a significant safety risk. For a new vehicle to require a full transmission replacement within its first year of use is highly concerning. I am requesting that NHTSA review this issue to determine whether other 2025 Honda Odyssey vehicles may also be experiencing similar premature transmission failures. Thank you for your attention to this matter. I can provide repair documentation, inspection notes, photos, or any additional information upon request. Sincerely, Allison Epps 334-464-0233 alijepps@gmail.com Vehicle: 2025 Honda Odyssey

In January 2025, we drove to Florida from Michigan. When I started my car every signal light came on. It would not allow me to shut down. We drove it to Orlando Honda and they said the sensor light was covered with road salt. It was very scary. In November 2025 we were driving home in a snowstorm. The sensor in the front got covered and shut down the speed control, warning lights of crossing lane, detecting cars on right or left. I get told every time can’t duplicate. The automatic bright lights got stuck on after only a month of having this car. Dealership says it was off. Well it wasn’t and they still do not work. Speed limit sign on dashboard will go up to 85 miles per hour this is in a 25 mile area. Again they say can’t duplicate. Brakes feel mushy to myself and husband. Again we’re told there is nothing wrong with it. When the speed controls are set there is at least 2 miles difference with my Waze speed and the vehicles speed. I’m told this is normal. Well it’s not. Something is wrong with the electrical system. I owned a Honda Odyssey before and I never had any issues with that one. We’re getting ready to drive to Florida and I’m terrified the system will shut down again. I was told that having road salt on a sensor is not a warranty issue. Well, it is because of poor design. I’m also afraid once this vehicle is no longer under warranty I will be paying $ for this poor design. I’m not happy and now wish I had my old one back.

When car is stopped it completely shuts off, goes into park and does not restart. This has happened 3 times, twice at an intersection and once as I slowed to a stop sign. The car didn’t restart and I had to push the engine start to restart the car. This was dangerously because it has happened while I stopped but also while I was slowing down at an intersection, the car would abruptly shut off. When this happens warning lights on the dash appear but go away once I restart the engine.

With vehicle auto start/stop feature enabled, vehicle just shuts off when attempting to start back up after shutting off at a stop light. It has happened multiple times and recently it even happened with the auto start/stop feature turned off. Took it to the dealership and they tested everything to include the battery and they weren’t able to duplicate it. A review of forums showed other people with the same issue and it is pointing to a faulty starter, but no recall has been issued yet.

I came to a stop at a stop sign. Then "auto off" shut off the engine. Next, the vehicle went into park. A message came on screen telling me to press the brake and the start button. Doing so had no effect. Cars behind me started honking. After repeatedly stabbing the start button and opening and closing my driver's door, the vehicle eventually rebooted, and the engine started as normal. This caused a dangerous situation where other cars went into opposing traffic to get around me.

Blind Spot Monitoring System does not register vehicles sometimes. Sometimes when passing a vehicle, light does not illuminate. Sometimes cars will pass the vehicle and light does not illuminate.

The Idle Stop feature failed to restart the engine when I released the brake after having stopped at a traffic light. Eventually restarted after more than a minute of manually pressing the ignition button.

Category: Structure / Water Leak / Electrical System Risk Vehicle: 2025 Honda Odyssey Description of the Problem: My 2025 Honda Odyssey has a repeated and serious water leak issue that affects the driver-side floor area. I first discovered the leak on October 30, 2025, with the driver-side carpet and foam padding completely soaked. The dealership (Sloane Honda in Philadelphia) kept the vehicle for two days but claimed they could not find any leak. On November 19, 2025, the same leak occurred again, with even more water present under the driver-side carpet and foam. I have photos and videos showing significant water accumulation. This presents multiple safety hazards: Potential electrical short circuits in wiring under the carpet Mold growth affecting occupant health Floorboard corrosion Impaired vehicle operation The vehicle is currently back at the dealership, and Honda has not provided a proper resolution. This is a recurring structural defect that poses a safety risk and should be investigated.

My car has been dying when I stop at stoplights. We took it into the dealership and they said the battery was sending error messages. So we replaced the battery. It is doing it again. Sometimes it starts but it is getting progressively harder to restart it. It is dangerous to be stalled at an intersection. The car is not even a year old.

Auto start/stop functionality has resulted in vehicle stalling mid traffic as vehicle does not start and shutdowns. This has occurred in multiple occasions and most recently almost caused an accident with my family. We sent to dealer who checked battery and stated to issues. There were no warnings and dealer was unable to reproduce as they didn’t drive the vehicle. I have concerns with this new vehicle after finding other reports of this issue.

The idle stop system is malfunctioning. I had it inspected once previously and now trying to get it inspected again for the same occurring issue. The dealership continues to tell me to turn off the idle stop feature on the vehicle. My safety was put at risk because of the vehicle stalling and not kicking back on while being stopped at a redlight on a busy 4 lane highway multiple times now. The first time, I was by myself. The second time, my 8-month-old was in the vehicle with me. This causes a lot of panic as there are impatient drivers around me since I am unable to move my vehicle. I fear that this could happen on a freeway if there was construction, an accident or even while trying to turn in an intersection and getting hit because I can’t move my vehicle and often have my two small children with me. The first time the idle stop stalled, it occurred twice in a week. The first time was rather quick, and the engine kicked over quickly so I did not think anything more of it. The second time which happened a few days later (9/17/25), took about 5 minutes to get the engine going again and moving on the road (4 lane highway). I took it back to my local Honda dealership where they performed a diagnostic test and discovered the battery had dipped down to 7.22V when trying to restart, the battery failed the battery test and ended up being replaced with a new battery. The idle stop issue has now happened for a third time (10/21/25), with the same issues occurring and I am waiting to be able to get back into Honda. The vehicle has only been looked at by my local Honda dealership. There were no warning lamps, messages, or other notifications prior to the failure. I received a warning on the dashboard after the events occurred on how to start the vehicle. This is very disappointing as a new Honda owner. My husband and I decided on Honda over other car companies due to their reliability and this has now become a constant worry.

The car stalled then stopped when I was at a traffic light, I had to press the start engine button multiple times to restart the car. This issue has occurred 3 times within the last two months.

I am having issues with my auto start/stop, also, occasionally has issues starting from a cold start! I was at a red traffic light, and once the light turned green I went to go and my car died. I had to put it in park and try and restart it and it took me three times for it to restart. Everybody was honking at me. This is a safety issue.

2025 Honda Odyssey EX-L My concern and issue is that the 2025 Honda. On 18 October 2025 the Honda Odyssey shuts down by its self after stopping at a red light. I believe it has something to do with the feature of auto start/stop system. This has happened multiple times. The  vehicle sporadically fails to restart after coming to a complete stop. The engine shuts off as expected at a stoplight, but when I release the brake, the vehicle hesitates to crank over or start which has left me stalled in traffic numerous times. No warning lights or messages ever appear prior to the issue. This issued has left me in the middle of the road numerous time with traffic behind me. This takes a couple of minutes to restart the engine because the vehicle lights are turned on and it appears that the Odyssey doesn't have enough power to turn on the vehicle. But after multiple tries the Odyssey finally turns on. This is extremely dangerous because it can cause another car rear ending us and injuring my family.

Honda Odyssey EX-L sport 2025 has been facing the issue of idle stop not working causing engine to stall, engine failing to restart, shutting off completely during mid traffic especially during adaptive cruise control operation. This is causing an unsafe driving situation. While this issue was reported to Scott Clark Honda multiple times and they have claimed to fix this issue in Aug 2025, the issue continues to exist and root cause hasn't been fixed. This seems to be related towards the on-going investigation by NHTSA. Please help to resolve at the earliest since no further support is being received from Honda.

When I stop, they start stop, turns the engine off, but when I release the brake, the engine struggles to turn over and sometimes doesn’t and I have to put it in park to restart it. I have taken it to the dealership already once, but they said they weren’t able to reproduce it. I will be taking it back to the dealer to try again.

Since July 4, 2025, this can has intermittently shut off and stalled on me, my wife and my family and has refused to start. It has now been back to the service department of Trust Honda of Palmdale 4 different times for the same problem and the battery has been replaced on this van back in July. Most recently, it stalled just two days ago in rush hour morning traffic on the 405 Freeway going South in the San Fernando Valley. The display on the dash read “dead battery “. It took over 20 minutes for the van to start and my wife was able to move it off of the freeway to a safe location.

The vehicle intermittently fails to restart after the auto start/stop stopped the engine. This happened several times when stopped at a traffic signal, nearly causing an accident when cars behind expected to move after the traffic signal turned green. There were no warnings or indications prior to the failure to start. Multiple attempts to restart the vehicle failed until at least a minute or so had elapsed. The vehicle has also intermittently failed to start after being parked for a few minutes after being driven for 20 minutes or so. The starter has generally sounded weak when starting, and when it fails to start it sounds like the engine tries to start turning for a fraction of a second before it stops trying to crank the engine. It almost seems like the start duration is too short or the ECU thinks the engine has successfully started when it hasn't. I brought the vehicle into the dealership to have this checked, and they replaced the battery saying it was bad. However, the failures to start continued to happen shortly after. I returned the vehicle to the dealership to be checked again. They have not yet identified anything that could be causing the issue. They claim the battery and starter test good. Based on similar complaints, it seems that this is an issue with many of these vehicles. Honda needs to identify the root cause of this failure to start issue.

I purchased a new 2025 Honda Odyssey XLE in February 2025 and soon noticed a clunking noise coming from the front suspension whenever I hit bumps. I contacted the dealership, and they scheduled an appointment. After inspecting the vehicle, they told me they could not find anything wrong. However, when I left the dealership, the noise was still there. The issue has since gotten worse. The clunking noise can now be heard when starting the engine, during transmission downshifts, and over even small bumps in the road. It feels like something in the suspension is loose, and I believe it is unsafe to drive. I am requesting that the vehicle be bought back. The dealership where I purchased the vehicle is 380 miles away, and I am currently on military orders, which makes it difficult for me to return to that location.

Idlestop fail to restart engine multiple occasions at busy intersections.

THE AUTO STOP/START OR AUTO IDLES FEATURE ON THE CAR keeps stalling after the car stops AT THE RED LIGHT. It can cause a rear collision.

The issue involves the auto start/stop system on my 2025 Honda Odyssey Touring. When the feature is turned on, the vehicle intermittently fails to restart after coming to a complete stop. The problem does not occur when the start/stop system is disabled. During normal driving, the engine shuts off as expected at a stoplight, but when I release the brake, the vehicle hesitates or fails to crank, leaving it stalled in traffic. The Honda dealership confirmed the issue and stated that the starter motor needs to be replaced. The van has approximately 9,300 miles. No warning lights or messages appear before the failure. The problem occurs only when the start/stop system is active. This presents a safety concern, as the vehicle can lose power and fail to move when traffic lights change or when merging, increasing the risk of a rear-end collision or blocking intersections. The vehicle is currently being inspected and repaired by the Honda dealer and is available for inspection upon request.

The idle engine feature is defective. Often, when stopped and the engine goes idle, it will not restart when the driver releases the brake. The van stalls, and the driver is forced to move the vehicle into park and start the engine again. This is dangerous and stressful because the driver behind you expects you to go, especially when the light turns green, but you are stalled, potentially leading to rear-end accidents.

Vehicle stalled on a highway after an idle stop event at a stop light. Vehicle went to PARK. Required a full restart by operator to go when light changed and traffic was flowing in other lanes. Dealership examined next day and indicated battery was good. Voltage dropping to 8V to 10V when starting. Recommended to disable idle stop each time vehicle is started. A new starter was authorized and placed on order.

Vehicle shut off and put itself in park leaving a stop light. Was hard to restart.

Vehicle stalled and shut down in traffic after the Auto Idle Stop function engaged at a red light turning the vehicle off and attempting to turn back on. All warning lights flashed. Vehicle would not turn on until after multiple attempts pressing ignition. This has happened multiple (3-4) times over a few months period. Honda dealership was unable to recreate incident but did identify difficulty with engine starting (i.e. slow crank) when manually turning on ignition; however, diagnostics found no issues.

My 2025 Honda Odyssey has been completely shutting off after the stop-start shuts the engine off. When the car actually “stalls” is when I let off the brake and it’s time to start going. Then I hear a ding, the dash lights come on, and I have to frantically hit the ignition button to restart my car. This happens intermittently, without warning. I've been stuck at redlights afraid I will be rear ended because all of a sudden I can't move forward at a green light. My and others safety is at risk. Honda does not allow the start/stop to be disabled by default. It has to be disabled, manually, by the driver, every single time the car is restarted. So you can't just ignore this problem by shutting off the feature when the feature won't allow itself to be shut off by default.

My wife was driving our 2025 Honda Odyssey on [XXX] on a neighborhood road around [XXX]. She came to a stop sign and stopped to turn right. Upon accelerating to turn right, the emergency braking system activated slamming on the brakes and bringing the vehicle to an immediate stop. There were no other cars, pedestrians or other obstacles with any line of sight. The sudden stop caused her to whiplash hurting her shoulder. We brought the vehicle to Joyce Koons Honda of Manassas. They downloaded the data and confirmed that the emergency braking system had activated but there were no reason codes given. They couldn't find any other issue and test drove the vehicle for 10 miles with no incident. My wife was really shaken up by the incident and refuses to drive the car until an actual cause is found and fixed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

At a stop, the fuel save system shut the car off. When you take your foot off the brake the van fails to restart. If you try to restart using the push button the car will still not start because the transmission is still in drive. Then it takes awhile to get the transmission into park/neutral and then the van will start. The problem is intermittent 3 times in the last 2 months. No accidents just blocking traffic. My wife doesn't like that.

Brand new vehicle and system shuts down a few times when in idle mode..(stoplight, stop sign) then I need to restart the car again.

After going into Auto-idle at a traffic light. The engine did not turn back on when accelerator was pressed. Even after a restart. It took about 30 seconds.

I think there is a problem with the Auto Idle Stop system that has resulted in the starter needing to be replaced. But, the dealership says nothing is wrong. The Auto Idle Stop malfunction lights up when I let off the brake. I have gotten in the habit of turning off the AIS every time I started the car. However, it still is hesitating to start, which leads me to believe the AIS has killed the starter.

The contact owns a 2025 Honda Odyssey. The contact stated that the Engine Auto Start-Stop system failed to operate as needed. The contact stated upon coming to a stop, the engine shutoff; however, upon releasing the brake pedal, the contact became aware that the engine failed to restart as designed. A message of a systems failure was displayed, and an image of a pedal and the Push to Start button were displayed. The contact was able to manually restart the vehicle immediately. The contact stated that the failure had been recurring and had worsened. The contact stated that the vehicle could only be manually restarted after 10 minutes, nearly causing a crash. The dealer was contacted, and an appointment was scheduled for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 16,000.

Two concerning and dangerous malfunctions are occurring. 1.)When car is stopped at a light for more than 45 seconds the car engine shuts off, when I press on the gas the dashboard lights up and displays a battery light and advises me to restart the car. The car struggles to turn over. 2.) The car struggles to start on initial start as well. The dealership replaced the battery and it continues to happen, they advised me to disengage idol stop every time I start my vehicle to save the starter and prevent the car from stalling. This is obviously a problem with the Honda idol start that needs to be addressed. There are multiple threads in online forums about this issue with Honda.