Honda Odyssey 2025 — Problemas reportados

I purchased a brand-new 2025 Honda Odyssey in June 2024. The vehicle currently has approximately 18,000 miles. The Auto Idle Stop system has repeatedly shut the engine off at traffic lights and failed to restart it. When this occurs, the engine does not crank, the dashboard remains illuminated, the radio and other accessories shut down, and the display instructs the driver to press the brake to start the engine. Pressing the brake and attempting to restart the vehicle does not work. The vehicle may remain disabled for several minutes before eventually restarting normally. This has happened multiple times. The vehicle has been taken to Honda dealerships twice specifically for this problem, but the technicians have been unable to duplicate the failure. On a separate oil-change visit, the battery tested low and was replaced. The restart failures have continued. Approximately two months ago, my wife experienced this failure while stopped at a traffic light. While the Odyssey was immobilized and unable to restart, a motorcycle struck the rear of the vehicle and fled the scene. The vehicle sustained damage. No police report was filed at the time. I am extremely concerned that this intermittent failure creates a serious safety hazard for my family and other motorists. I request that NHTSA investigate this recurring failure, including its potential connection to previously reported Honda Auto Idle Stop restart problems.

2025 Honda Odyssey. The auto idle-stop shuts the engine off at red lights as designed, but the engine intermittently fails to restart when the brake is released. Some days it happens, some days it does not; on occasion twice in one day. Restarting requires pressing the start button repeatedly. No warning lights appear before or during the failure. The vehicle is left stalled in active intersections when the light turns green, creating a risk of rear-end collision. The issue occurs only with auto idle-stop enabled.

While at a red light or complete stop, the car completely shuts down and often have to manually restart it. Sent it in for repairs twice. Once they replaced the battery. That did not help. Brought it in again and they worked on it. It seemed to help for awhile but now the car randomly will turn off at a stop sign or have a very slow start. It is very dangerous because traffic can be going or a light can turn green and the car needs to be restarted and often cannot be done quickly. Going to take it in again but googled this problem and it seems there are multiple complaints of an auto stop/start issue. It seems if I turn the auto start/stop off, it may help resolve the problem, but I cannot permanently do this. This is a dangerous situation

The idle auto stop is designed by default, multiple times the engine stopped in front of a red light and couldn’t start the engine right away. Sometimes need multiple times to restart the engine

My Honda Odyssey shuts the engine off at a stop under Auto Idle Stop and then fails to restart when I release the brake. I have to shift to Park and press the start button. This has happened at least 5 times, including today, while stopped at a traffic light at a busy intersection. The van was immobilized in active traffic. Extremely dangerous situation.

Auto Idle Stop feature wouldn't restart vehicle while at an intersection. The vehicle eventually restarted, but not without causing traffic disruption. It took the entire light cycle(red-> green -> red) for my wife to be able to manually(had to push the start button several times) for the car to eventually restart. Warning light on dash said something to the effect of "unable to engage "something"(wife cannot remember, she was panicking due to being stalled in the middle of the road) This not the firs time this has happened, and we have had it in for this before but the the dealership has not been able to find any issue to date. Honda factory also is aware of the issue(maybe for over a year now, but still has not found a fix)

The car’s starter has issues. Shortly after I bought the car, it had trouble starting. Twice, I had to restart the car at stoplights too. They changed my battery. Now it has issues starting again. It sounds like it almost won’t start. It sounds like it’s using a lot of power to start the car.

The car stalls out/does not start back up when Idle Stop is used. This causes a risk for an accident as the vehicle does not more forward when it should. This now happens daily for the past month. This happened in the past with this same vehicle and the starter was replaced by the Honda Dealership Service Department. It is going into the Honda dealership Service Department on 10/5/2026.

My 2025 Honda Odyssey Elite has recurring, intermittent difficulty restarting after the Auto Idle Stop system shuts the engine off at a stop. I purchased the vehicle in December 2024, and it currently has approximately 37,000 miles. When attempting to restart, the engine sounds as though it is struggling to turn over. Most of the time it eventually restarts automatically, but on some occasions it fails to restart automatically and I must use the ENGINE START/STOP button. An intermittent dashboard message sometimes appears during these events but disappears before I can read it. The problem occurs even after long drives and sometimes appears worse after a long drive. The vehicle has also struggled to restart using the push button after being parked for approximately one to five minutes following driving. It typically starts normally otherwise. A Honda dealership previously replaced the starter to address this problem. The vehicle improved for a period after that repair, but the symptoms have returned. The underlying cause of the recurring problem has not been confirmed. Failure to restart after an automatic engine shutdown leaves the vehicle unable to proceed from a stop until the engine restarts, creating a risk of a collision in traffic. The problem remains unresolved. Please consider this report in connection with NHTSA investigation EA25004 concerning failure to restart after Auto Idle Stop.

On numerous occasions, the START/STOP idle system could not restart the engine. Happens often but not predictably.

when car stopped at light, engine will turn off and go into park and will not start again unless the car is turned off completely, wait a few minutes and then restart the car. This has been happening since 2/2026 and reported Ed Voyles Honda Dealership twice and this was not identified. Their action in the receipt attached below.

The auto start/stop feature shuts my car off and doesnt start back up when I let off the brake pedal. It has done this 3 times while at a red light and its very dangerous getting stuck in the middle of the street with my kids in the car.

My car has stalled numerous times when it stops, and the engine goes into the fuel saving off mode. It stalls when I try to drive away as my foot comes off the brake. This has happened more times than I can count. In addition, as a side not I rented another 2025 Honda odyssey, and it also died when trying to go. The dealer has supposedly driven my vehicle when we bring it in but never has reproduced it according to them. They did admit that they knew about it but had no solution at present. There only response was to say to turn the engine shut off switch to disable it. There are warning lights after it dies but not before.

Several (more than 5) times over the past 2 months my car has had the same issue occur. The automatic Idle Stop feature was turned on and the engine was idling at a stop sign or red light. When I went to press on the gas to begin driving again, my engine would not restart and I received an error message. I was unable to change gears and had to manually turn off my engine, wait a few seconds and restart the engine, and then put back into drive. Again, this has happened several times over the past couple months. My safety was at risk because I was at risk of beging in an accident if the car behind me started to drive when the light turned green, not realizing I was stuck with an engine in idle mode, unable to drive my car.

I’ll be at a red light and when it’s time to go the car is off and I have to put on the emergency lights until I get car on usually after three times of pressing the brake and pushing the start button. The car shuts off while idling at a red light and does not turn back on when brake is released.

Idle Stop system - NHTSA EA 25004 My 2025 Odyssey fails its auto-restart from a stoplight, stumbles, and then has a very rough secondary start.

On September 25, 2026, I was stopped at a traffic light in my 2025 Honda Odyssey when the automatic idle stop activated. I was at a busy intersection with a line of cars behind me. When the light turned green, I took my foot off the brake and pressed the accelerator, but the vehicle shut off. I tried several times to restart the vehicle but was unsuccessful. It took several minutes before I was finally able to get the vehicle started again. During that time, I had a line of cars behind me waiting for me to move. Being stuck at a busy intersection with a vehicle that would not restart was very unsafe. I was concerned that a vehicle behind me could hit me because I was unable to move when the light changed. There were no warning lights or messages before this happened. This has never happened before. There was no accident or injury, and the vehicle is available for inspection. I have an appointment with a Honda dealership on October 9, 2026, to have the automatic idle stop failure investigated.

Vehicle intermittently failed to start. On one occasion following an Auto Idle Stop event, the restart was difficult (details in the "additional details" field). The vehicle did not restart as intended after disengaging the brake from Auto Idle Stop and manually restarted causing a several second delay in the roadway. On another occasion, after filling for gas, the engine cranked normally but did not start on the first attempt and started normally on the second attempt. Honda dealer diagnosed a defective starter and is replacing under warranty. Replacement starter is currently on national back order. Vehicle is included in NHTSA's active investigation (EA25004) regarding Odyssey starting/no-restart issues. General Guidelines responses: What component or system failed or malfunctioned, and is it available for inspection upon request? -Starter, available upon request until replaced by dealer How was your safety or the safety of others put at risk? -The delay in the roadway could have caused an accident (to me and others) when the vehicle failed to start as intended after the brake was disengaged Has the problem been reproduced or confirmed by a dealer or independent service center? -Dealer has confirmed there is an issue with the starter and will be replacing it under warranty when it is available from back order Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -Only the dealer Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -No prior warning. However, the vehicle does sound "rougher" when it cranks as opposed to my other vehicle now that I'm comparing the two. Restart issues first occurred within the last week.

> While driving our Honda Odyssey, we have experienced a recurring and extremely serious safety issue involving the vehicle’s Auto Idle Stop/Auto Stop feature. When the vehicle comes to a stop at an intersection, the system automatically shuts the engine off as designed. However, on multiple occasions, when it is time to proceed, the vehicle has failed to restart. The engine remains off and we are unable to immediately get the vehicle restarted or move it out of the roadway. > > **This is not an isolated incident. This problem has occurred frequently and has recently begun occurring with increasing frequency.** We are extremely concerned that the condition is becoming progressively worse and that we cannot predict when the vehicle will fail to restart after the Auto Idle Stop system activates. > > During one particularly serious incident, the vehicle failed to restart while we were stopped at an intersection. When the traffic signal turned green, our Honda Odyssey remained disabled in the active traffic lane. We attempted to restart the vehicle but could not immediately get it running or move it to a safe location. > > This created an extremely dangerous situation. A vehicle approaching us from behind nearly rear-ended our stopped van. The approaching driver swerved at the last moment and thankfully avoided striking our vehicle, but subsequently crashed their own vehicle. Had that driver not been able to avoid us, we believe this could have resulted in a very serious rear-end collision, significant injuries, or fatalities. > > Because this problem has happened repeatedly and appears to be occurring more frequently, **we have also contacted the Honda dealership, Penske Honda on 96th Street in Indianapolis.

The car's auto start stop shut off and did not restart. It took over a minute at a stop light of a busy intersection to get the car to restart. This has occurred multiple times now.

Drove over railroad tracks and the seat belts locked up on the driver and passenger. Smelled smoke right after.

Several dozen times now the vehicle’s engine shuts off at a stop via the auto engine stop system when depressing the brake. When releasing the break, the car engine doesn’t restart. It requires putting the car into park, turning off the car via the ignition button, and turning it back on. This has happened 5 times at a busy intersection, and people start honking. Now when it happens, I need to put the emergency blinkers on before starting the entire restart process. I try to press the auto engine shutoff button when I turn the car on so this doesn’t happen, but I often forget. There should be an easy way to disable this incredibly unsafe feature, considering we usually have young children passengers.

Engine won't start. This problem began as intermittent no start after driving for more than 30 minutes in hot weather. Such as stopping for fuel or a roadside rest on the interstate. It has progressed to intermittent no start in the mornings, or after work. Or after short drives for errands. Vehicle has been evaluated by the Honda Service Center. They stated they couldn't reproduce the problem, but it is a known problem. They also stated that there isn't any parts available. And there won't be any parts available until January 2027 or later. I asked what's my options, this car isn't reliable and it's going to leave my family stranded. The service center told us to not use AIS (Auto idle stop) We haven't used it since we bought it. No loaner, rental or other options. No replacement parts for 5-6 months isn't acceptable. This vehicle only has 20,000 miles and is 18 months old

With auto idle stop enabled, the engine frequently fails to restart upon brake release. To restart the engine, I have to turn the car off and back on again using the engine start button. This has happened many times at traffic lights if I forget to disable the auto idle stop. Twice in the last month I have almost been hit by the car behind. The Honda dealership was unable to recreate the issue. It is apparent that many other new model Honda Odysseys are also experiencing this same issue from an online search, leading me to suspect Honda has a hazardous design deficiency.

The Auto Idle Stop (AIS) failed to work properly for my wife when she was stopped at a stoplight. When she stopped at a stoplight the engine stopped. When she took her foot off the break and applied pressure on the gas pedal a warning of some sort showed on the screen where the speedometer is and the car failed to restart and move forward. This caused a hazard because the people behind her lurched forward because they assumed she would move forward once the light turned green. When our car failed to start she wasn't sure what to do to fix the problem so all the cars backed up behind her for a short time before she realized she needed to put our car in park, turn it off and then restart the engine. I will take my car in to the dealer as soon as possible. Until then we will have to disengage the auto stop function so prevent any further dangerous incidents.

The issue is that auto-idle intermittently does not restart. There have been multiple instances when the car has failed to restart after auto-idle, and most recently, this happened in the middle of the day on a very busy road at a red light. Stopped at the red light, the auto-idle turned the car off and it did not restart. I had to sit with the vehicle until I was able to get it restarted, which took about 4 minutes. Being on such a busy road, it caused a traffic backup with other vehicles having to move from behind me, causing others to swerve into other lanes and also drivers approaching to slam on brakes. As for warning light-there are none until the car stalls, and then every warning lights seems to come on. At that point, the warning lights are useless as the issue has already occurred without warning, causing an immediate safety risk to me, as well as drivers around me. We took the car to the dealer, which said they have had to repair multiple vehicles of the same make and model for this very issue. We had to pay for the full repair, as the car is recently out of the warranty coverage.

9/22/2026- the car idle stop failed to restart at a intersection. 9/23/2026- the car did not start after stopping to get gas. I have not taken it to the dealer yet. Will do it as soon as I get a chance. When the idle stop fails the car shift into parking and only the accessories are on.

Auto stop start sometimes doesn't work even though battery was just replaced. Sitting at stoplight and when the car turns off with auto stop it does not turn on automatically when trying to move the car. Have to cycle the ignition and sometimes does not start.

2025 Honda Odyssey experienced an Auto Idle Stop no-restart condition. While stopped at a traffic light, the Auto Idle Stop system shut the engine off, but the engine failed to restart when attempting to proceed. The vehicle was disabled at an intersection, creating a potential safety hazard.

Problem with the idle auto off feature failing in traffic. Will be driving fine, come up to a stop (at a stoplight, stop sign, etc) and the engine will shut off as intended with auto off, but engine will then fail to restart/stall. Have to push the start button on/off several times before the engine will restart and we can continue driving, the delay leads to safety concerns and possibility of an accident with traffic behind us accelerating expecting our vehicle to be moving or other drivers not being able to predict our actions due to erratic start/stop. There is no option to permanently disable the auto start/stop. No warning or maintenance lights indicating there's a problem. This issue has happened 5-10 times since we purchased the vehicle late 2024. We have not taken the vehicle in to the dealer yet.

When traveling to multiple destinations, upon attempting to start the van, it will not start. This is also the case with the auto start/stop program. The van's engine will stop at dangerous locations, such as a busy traffic light, or at any other stop where the engine turns off. There were no warning lights, but the van would only start if tried multiple times. This is incredibly dangerous and nerve-wracking.

This car has on multiple occasions now just turned off the Enginee when stop at a stop light and the Enginee idle feature is on. It makes you restart the car when you are trying to go from a stop light this is dangerous and causes angry driver behind you. I took my one year old car to the Honda dealership and they said they couldn’t help. This is a safety issue. It’s happening more and more frequently

Multiple instances of the auto start not reengaging while stopped at intersection. Have to completely shut off and restart vehicle.

We have had several incidences occur with the auto idle stop system. It has failed to restart at stop lights/signs, car turns off and you must restart it. It happens unexpectedly without warning and you do not realize it until you press on the gas pedal. It causes panic and anxiety due to traffic behind you. It has also occurred in parking lots and in our driveway. One incident occurred on a trip, driving for a long distance and then pulling off the road to stop, the car turned off and took several tries to restart it. We thought we were going to have call a tow truck. Luckily we were off the road and it did finally restart. Scary rest of the long drive home. We have not noticed any warning lamps, messages or other symptoms prior to failure. We are extremely worried we will cause an accident if we leave the auto idle stop system on. We try to remember to always turn it off. This has been happening since we bought the car brand new. The auto dealership has checked it and cannot find a problem and are of no help. We noticed a forum on the internet where there is an ongoing investigation into the problem. Hopefully, something will be remedied to be able to fix it. Until then we have to remember to press the system off button.

During auto idle stop (usually happens after more than 5 seconds in idle stop) the van will stall (put itself in park and engine turns off). Restarting takes approximately 30 seconds because the van will not turn back on right away no matter how many times the ignition/start button is pressed. I was advised by the dealership we purchased the van from, to allow it to happen more frequently so that it can be properly diagnosed so we have not been turning off the auto idle stop. But I feel this is a safety issue and should be addressed immediately.

Component and availability: The engine fails to restart after Auto Idle Stop shuts it off and now also fails to start on normal starts. The failure involves the Auto Idle Stop system and the engine starting system. The vehicle is available for inspection on request. What happened and safety risk: On approximately 8/5, I was stopped at a stop sign with Auto Idle Stop engaged. The engine shut off as designed but did not restart when I released the brake, and the vehicle automatically shifted into Park. The start button would not restart the engine, the vehicle could not be shifted out of Park, and the button also would not turn the vehicle off. The vehicle was stranded in an active intersection, where other drivers had to go around it, until it eventually restarted after several tries. Since then we have turned off Auto Idle Stop on every drive, but the vehicle has now also failed to start on normal starts: 9/17, 9/18 and several others in the 8/5-9/17 period. The car would not crank and start, it would only start after several (3-5) tries. A vehicle that cannot be reliably started or restarted risks leaving the driver and passengers stranded in traffic or unsafe locations. Dealer confirmation: This car has been seen by the dealer previously (i.e., in summer 2025) with the same issue, and had battery and starter system replaced. However, the issue recurred after several months. This vehicle appears to fall within NHTSA investigation EA25004 (Auto Idle Stop failure to restart). Warning signs: No warning lamps or messages appeared before or during the failures; dashboard and interior lights worked normally throughout. The only earlier symptom was slow or rough engine restarts after Auto Idle Stop on hot days.

2025 Honda Odyssey - seems to have issue with auto-start auto-stop. Frequently, the minivan is unable to turn back on after it auto-turns off when stopped at a light or somewhere. Creates very dangerous situation because I am stuck as the driver, and the car is unresponsive. You have to put car in park, turn off the car, turn it back on, put in drive. People are honking and in one case we almost got hit because it was a stop around a turn and we couldn't move. I've checked for recall and it's not there. I'm taking it in to Honda dealer as soon as available. It's not everytime, but it's frequent. Probably happened 4 times in last two weeks.

My 2025 Honda Odyssey has repeatedly failed to automatically restart after the Auto Idle Stop system shuts the engine off while stopped at traffic lights or in stop-and-go highway traffic. The problem began approximately four months ago and is intermittent, occurring roughly once per week. When the problem occurs, the Auto Idle Stop system shuts the engine off normally while the driver is stopped with a foot on the brake. When the driver releases the brake, the engine does not restart as it should; instead, the vehicle automatically shifts into Park and the instrument panel displays “Accessory Mode” or similar wording. The driver must then press the brake pedal and push the engine start/stop button repeatedly to restart the vehicle. So far, the vehicle has eventually restarted each time, but it can take approximately 2–3 minutes and multiple attempts. This creates a significant safety hazard because the vehicle becomes disabled in an active traffic lane, including at busy intersections and in stop-and-go highway traffic, while the driver attempts to restart it.

The start stop malfunctioned. This put my family at risk of being rearended when others were trying to move at a green light and I was stalled.

The vehicle will slam on its brakes with nothing around it. This has happened more times than I can count now and has almost caused us to wreck on multiple occasions