Over a period of the last several months when the auto idle stop engages at intersections (red lights, stop signs, etc) the vehicle will intermittently fail to restart. The vehicle stalls entirely and goes into a state where you are unable to restart the vehicle for anywhere from 30 seconds to several minutes. This is a very dangerous situation and each time have had other motorists honking and frustrated that the vehicle is not going when the light turns green. The vehicle is currently at the Honda dealership for the third time to attempt to repair this issue. The first time it was returned to me and I was told no issues found, the second time (after multiple more failures on road) was told the battery was faulty. The battery was replaced but the failures to restart continue. I can see that there are many claims of this same issue with Honda, however in our experience with this vehicle, very little has been done by Honda to solve this major safety issue.
2025 Honda Odyssey engine complaints
Page 9 of 10: complaints 221 to 250 of 263, newest first, as owners wrote them.
My 2025 Honda Odyssey features a standard Auto Idle Stop system designed to improve fuel efficiency by shutting off the engine when braking to a stop. While intended to restart upon releasing the brake, my 2025 models have reported issues with failing to restart or stalling.
The contact owns a 2025 Honda Odyssey. The contact stated that while driving approximately 40 MPH, the vehicle experienced a loss of automotive power. The failure was intermittent. No warning light was illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 12,000.
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 federal safety agency 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.
Complaint Description: While driving my 2025 Honda Odyssey, the Auto Idle‑Stop system engaged in the middle of an intersection at a traffic light, shutting the engine off as designed. When I released the brake pedal, the engine failed to restart, leaving the vehicle stalled in traffic. The dashboard displayed warning indicators including the battery light, and the only way to move the vehicle was to turn off the car completely several time and try to manually restart the engine. This issue has occurred multiple times and poses a serious safety risk, especially when it happens in intersections or heavy traffic. I almost got hit by an oncoming car! On each occasion, surrounding traffic was forced to maneuver around my vehicle, creating the potential for a rear‑end or a side collision. this has been happening for a long time now and these instances are occurring almost weekly at this point. They are increasing. I have seen that other 2025 Odyssey owners are reporting the same issue — engine shuts off after Auto Idle‑Stop activates and will not restart — sometimes requiring a full restart and causing dangerous traffic situations on carfax.com. Based on similar the federal safety agency‑documented complaints and investigations into Honda Auto Idle‑Stop restart failures, this appears consistent with a known defect pattern involving stalled engines and failure to restart after idle‑stop engagement. (lawinfo.com and edmunds.com) The dealership has already replaced my low pressure fuel pump and state that they are fulkly aware of the issue and have not provided a permanent fix, and the problem continues to occur unpredictably. My wife and 4 children are in this car all the time. This defect could easily lead to an accident if the vehicle becomes immobilized in moving traffic. I am reporting this to ensure it is documented as a potential safety defect requiring investigation and mitigation.
Since purchasing this vehicle brand new off the truck, we have had it back at the dealership multiple times ,we've taken it for the plug in console not working for firesticks, a sensor not working on the passenger side door and claiming it to be open, the sliding door not working correctly, the doors locking and refusing to unlock, battery draining, ac not working, stalling, dying at lights, slamming on its own brakes with nothing around, transmission acting weird, it putting itself in to sport mode, transmission sticking, doors not unlocking or not locking, sensors going off, random errors on dash, screens not working, Car play not working, suspension popping, steering being wiggly and loose, brakes squeeling. Today we were told by the dealership "he saw the damage that is resulting in needing to replace the steering column. With that being said, it is considered a safety hazard to drive this vehicle with the condition the steering column is in." This is after multiple times of saying nothing is wrong to we have to charge the battery to you need a new starter to this.
Auto Start/Stop system engaged, when given gas the engine did not start. Battery light came on and had to turn off and on the vehicle to start the engine. EA25004 - Investigation [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Idle Stop Failure. This has occurred many times. Presents itself as: Failure to restart upon releasing the brake. Rough restart. Sometimes have to completely turn off car and restart.
My Odyssey has a no-restart issue related to Auto Idle Stop. Engineer did not restart at red light and I had to push the button twice. We were caught in traffic and was not safe.
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.
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.
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.
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.
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
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 .
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.
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.
The contact owns a 2025 Honda Odyssey. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The check engine warning light was illuminated. The contact was unable to pull over to the side of the road. The contact turned on the hazard lights. The contact waited to restart the vehicle and after several attempts the vehicle restarted. The contact stated that upon depressing the brake pedal and pushing the Start button, the brake pedal was stiff while the start button made an abnormal beeping sound. The message "Press the Brake Pedal and Push the Start Button," was displayed. The contact was able to continue driving; however, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The failure had occurred four times. The vehicle was taken to the dealer to be diagnosed; however, the cause of the failure could not be determined. The vehicle remained at the dealer undiagnosed and unrepaired. The contact no longer felt safe driving the vehicle and left the vehicle at the dealer. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 18,886.
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.
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
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.
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.
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 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.
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.
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.
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 the federal safety agency. Please help to resolve at the earliest since no further support is being received from Honda.
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.
Description of the Problem I am filing this complaint regarding a serious safety concern and poor quality repair on my 2025 Honda Odyssey, which I purchased new less than one year ago. 1. Engine Auto Idle Stop / Starter Failure Issue The vehicle suddenly shut down when the “Auto Idle Stop” feature was activated. This incident occurred multiple times, and I was unable to restart the engine until several attempts later. This creates a dangerous situation, especially in traffic or intersections. When I contacted the dealer, they confirmed that the issue is caused by a starter motor failure, and the replacement part will not be available until early November — meaning I must drive for over a month with this feature turned off. Many other owners have reported similar problems online, which strongly suggests a potential defect that should qualify for a safety recall. 2. Water Leak and Poor Quality Repair My vehicle also experienced a water leak from the roof area. The dealer attempted to fix it by simply applying sealing material on the roof molding (see attached photos). The repair looks extremely unprofessional, and I requested them to properly replace or reinstall the roof molding, but they refused. This type of repair is unacceptable for a new vehicle of this class and price. 3. Honda’s Unsatisfactory Response I contacted Honda Customer Service (1‑800‑999‑1009) and spoke directly with a representative. However, I was told that: They cannot extend the warranty. They cannot offer any compensation or goodwill service. They cannot provide me with a record or copy of our phone conversation (even though they recorded it). They will only repair the starter once parts arrive. I explained that I have already spent time, fuel, and lost work hours visiting the dealer multiple times, yet they refused any support. Safety Concern and Requested Action The engine shut-off issue clearly affects vehicle safety and could cause accidents in traffic. I request that the federal safety agency inv
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.
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