What owners reported
Newest filingsFiled Oct 29, 2026KS
The engine fails to restart automatically after shutting off at a complete stop (such as a red light or intersection
Filed Oct 28, 2026NY
Sometime when the engine auto stops it doesn't start again
Filed Oct 28, 2026IN
The Auto Idle feature has caused my car to stall multiple times. This is extremely dangerous because it always happens when I am in populated areas- sometimes at red lights and another time in stop/go highway traffic. My car is 1.5 years old and this keeps happening more and more frequently. I am very concerned that one of these times I am going to be rear ended because traffic starts to go, I let off the brake to drive and then my car stalls. I then have to turn my vehicle off completely and then back on to get it to not have issues. I do get a warning saying to depress the break and press the start button. Sometimes I get a red battery light on the dash.
Filed Oct 27, 2026UT
The vehicle's Auto Idle Stop (AIS) system engaged normally when coming to a complete stop at an intersection, shutting off the engine to save fuel. However, when attempting go through the intersection after the light changed to green, the engine failed to restart automatically. The vehicle completely lost power in an active lane of traffic, creating a safety hazard. The vehicle had to be shifted into park and manually restarted to clear the roadway. This failure appears directly related to NHTSA Engineering Analysis EA25004 regarding Honda/Acura Auto Idle Stop restart failures.
Filed Oct 27, 2026NY
The vehicle is experiencing an intermittent but highly dangerous defect involving the factory-installed Auto Idle Stop system. When the vehicle comes to a complete stop at intersections, traffic lights, or in stop-and-go traffic, the Auto Idle Stop system engages as designed and shuts off the engine. However, upon releasing the brake pedal to accelerate, the engine fails to restart automatically. Instead of seamlessly restarting, the vehicle completely stalls in live traffic. The dashboard instruments remain on, but the engine drops completely out of operational mode. To recover propulsion, the driver must shift the vehicle entirely into Park, press the start/stop button to cycle the ignition completely off, and then manually restart the engine. This creates an immediate and severe safety hazard. The sudden, unprompted loss of propulsion leaves the vehicle completely stranded in active intersections and roadway lanes, exposing the occupants to an imminent risk of a rear-end collision. The restart delay forces the driver to perform multiple steps to reset the vehicle while traffic builds around them. The manufacturer is aware of similar systemic restart failures across its V6 engine platforms, which are currently the subject of active NHTSA investigations and class-action litigation. However, this issue continues to persist on the newest model years, creating an active road safety risk.
Filed Oct 26, 2026VA
The Auto Idle Stop (AIS) on our 2025 Honda Odyssey will cause the van to stall and the engine will not restart. When this happens, our only option is to put the van in park, shut it down and then restart. Sometimes that van has not restarted for almost 90 seconds. We have had it into the Honda dealership three separate times for this issue. The first time they told us the battery was drained so they recharged for over eight hours. The last time they said "the battery fails the load test at this time" so they replaced the battery and stated that the vehicle was "operating as designed at this time." Since the last time we had it in for service (and with a brand new battery), the AIS has failed on us twice. The last time (XXX) it nearly caused an accident on a busy road in Northern Virginia. When it fails to restart the van goes into a default type mode (where most of the service lights turn on or flash and we will have to put the hazard lights on, put the van in park, shut it off and then restart the van. This issue has happened to us about 12 times int he last 8 months. I am very concerned that this will cause an accident at some point and is putting my family's safety at risk. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Filed Oct 26, 2026UT
We have been experiencing issues with the car stalling while driving. Most recently, the car lost power a few feet into making an unprotected left turn leaving us stranded in the middle of an intersection in a vulnerable position for several minutes. This was deeply unsettling to have happen while making left turn maneuver. It seems to be a failure of the Auto Start/Stop function. After a few persistent trips to the dealer, they have now informed us that this is a known issue, but the parts are on backorder until January 2027. The workaround is turning off the Auto Start/Stop function, but this button does not have an indicator light, is not always confirmed on-screen, and is re-enabled by default EVERY time the car is started. It also appears that others have complained about this issue, and this deserves to be upgraded to a recall. It is unacceptable that a manufacturer would know about an issue with serious safety implications and not notice owners. This could have easily caused a crash and it is happening to others. This specific van is used to transport a disabled family member and outside aides often drive him in this car. We do not feel comfortable with a non-persistent workaround while others are driving this car while we wait for this part. - Auto Start/Stop and Drivetrain, available for inspection - Car stalls during maneuvers after stopping - Problem was reproduced multiple times. Dealer is aware. - Inspected by dealer. - No warnings, messages, or symptoms.
Filed Oct 26, 2026FL
My 2025 Honda Odyssey has repeatedly failed to restart after the Auto-Idle Stop feature automatically shut off the engine while idling in traffic. This is a serious safety hazard that could leave the vehicle disabled in a busy intersection, exposing occupants and nearby motorists to the risk of a potentially catastrophic collision. Despite two starter replacements in October 2025 and October 2026, the problem has occurred multiple times. The authorized Honda dealership acknowledged this is a known issue but stated that no permanent solution is available. No warning messages were observed before the failures. A vehicle that can unexpectedly become inoperable in traffic presents an unacceptable safety risk and warrants urgent investigation and corrective action. Please associate the above statement with EA25-004.
Filed Oct 26, 2026ID
When I come to a stop and the auto idle feature is enabled, my car sometimes fails to turn back on, and I am stuck, trying to get my car turned back on. It usually involves me completely turning off my car, opening the car door and then turning the car back on
Filed Oct 25, 2026AL
Auto Idle start stop system failed to start vehicle while. We were stopped at a red light auto idle shut down the engine once the light turn green and we attempted to move forward the auto start failed to cycle resulting in a stalled vehicle on the road, potentially increasing risk to passengers and other drivers on the road. This has happened multiple times.
Filed Oct 25, 2026MO
Engine and vehicle completely turns off when auto start/stop engages when at complete stops.
Filed Oct 24, 2026IN
When idle start activates at a stoplight sometimes the car will not start when you take your foot off the brake. Car then takes several tries but it will start again. This is a dangerous situation and can lead to accidents. Only seems to happen randomly after the car warms up. Dealer did replace the battery but it did not fix the problem. My guess is the starter does not perform correctly after heat soak in the engine bay.
Filed Oct 22, 2026TX
I've had multiple instances where I would be stopped at a red light, when when the light turned green, the car would not accelerate. I would have to turn the engine completely off and back on. This is a safety issue as I'm sitting in traffic and cars/vehicles behind me are expecting me to go. My fear is that someone not be watching my van but the light and accelerate before I am able to move forward. My son, a mechanic, looked at the vehicle. His suggestion was to replace the battery - the vehicle was purchased March 2025, and should be too soon to have to replace the battery. However, when attempting to start it, it sounded like the battery was dying. A couple of weeks after replacing the battery, there had been no issues. I had been driving the vehicle around 20 minutes, most of that at highway speed (80MPH on the toll road). I was idling at a red light. When the light turned green, the vehicle would not come out of the idle mode. I could NOT switch from drive to park. I could NOT turn off the engine. I sat in the road for a minute and a half to 2 minutes (as I sat through an entire light cycle) before the van would finally allow me to turn off the engine and turn it back on. There was no warning, messages or other issues prior to this happening.
Filed Oct 21, 2026MD
I am providing formal notice of a recurring defect involving my leased 2025 Honda Odyssey Sport-L and requesting prompt investigation and resolution under Honda's warranty and applicable Maryland law, including the Maryland Lemon Law. I leased the vehicle on XXX, with approximately 18 miles. It currently has 17,370 miles and has been maintained at authorized Honda dealerships. The vehicle has repeatedly failed to move from a stopped position. On XXX, Heritage Honda of Westminster documented the issue (Repair Order XXX), recording a flashing "D," inability to shift, a transmission-system warning, and Diagnostic Trouble Code P07E4. The code was cleared, but no repair was made because the problem could not be duplicated. On XXX, the defect occurred again while I was stopped at a busy intersection with my five children in the vehicle. When traffic began moving, the vehicle would not move, the dashboard went black, and the vehicle required multiple restart attempts before operating again, creating a serious safety concern. Because this defect has recurred after a documented service visit and remains unresolved, I request that Honda open a case, perform a comprehensive diagnostic evaluation and repair, provide copies of all diagnostic findings and repair records, advise me regarding a loaner vehicle, and confirm the warranty and any applicable Maryland Lemon Law remedies. Please preserve all records related to this matter. I reserve all rights available under applicable state and f
Filed Oct 20, 2026FL
The vehicle idle start/stop feature has started struggling to reengage, particularly, it seems, in warmer weather. At least six times in the past two months (Sept-Oct 2026), the start fails completely during a drive. What this means is that the vehicle is stopped at a light and the start/stop kicks in. When I lift my foot off the brake to prepare to drive again, a warning flashes on (it disappears quickly but says something was detected) and the car shifts into park. I cannot put the vehicle into drive without turning off the car and turning it back on. This is very dangerous as I have been at the front of and in long lanes of traffic. Other drivers honk and try to go around me while I am getting the vehicle back up and running. The dealer has checked the car twice but cannot replicate the issue (both days they had the car, the temperature outside was below 80 degrees, and that seems to be a factor). Therefore, they cannot make or recommend any fixes other than turning off the feature everytime I turn on the vehicle.
Filed Oct 19, 2026NE
When starting the car it takes a long time to officially start. This could leave me stranded. A Honda dealer has confirmed this is an ongoing issue as well as other car shops. It started to appear a few weeks ago. I have video I can send. The auto start stop system has shut the vehicle off in the middle of an intersection which could cause an accident or me being stranded.
Filed Oct 19, 2026FL
The auto start-stop system fails frequently. If I do not turn off the system, when I stop on red light, the engine turns off as expected. However, it frequently fails to start. The car stalls and it's difficult to turn back on. I need to turn the car off completely first, then try to turn it back on. This usually takes 10-20 seconds. The situation presents a safely hazard as I'm not able to continue to drive through an intersection on a green light. I took the car to dealer 3 times. They were not able to reproduce he issue nor find the cause of the problem
Filed Oct 19, 2026MI
Unknown. **Vehicle:** 2025 Honda Odyssey Touring **Component:** Engine / Electrical System / Automatic Idle Stop My 2025 Honda Odyssey Touring has repeatedly failed to restart after the automatic idle-stop system shuts off the engine while stopped in traffic. This problem began very early in the vehicle's life, at approximately 10,000 miles, and has occurred an estimated 8–10 times. The vehicle currently has 40,340 miles. When the problem occurs, the engine does not crank or make any clicking sounds. Multiple attempts are required before the engine will restart. On at least one occasion, the dashboard displayed the message "Press Brake and Push Start." I cannot confirm whether this message appeared during the other incidents because I was focused on getting the vehicle restarted and moving out of traffic. The problem has occurred exclusively following activation of the automatic idle-stop system. The vehicle starts normally when initially started after being parked. This presents a serious safety concern because the vehicle becomes unexpectedly immobilized at traffic lights or intersections, potentially exposing occupants to rear-end collisions or other traffic hazards. Honda issued a dealer communication dated May 21, 2025 (NHTSA document MC-11019246-0001), specifically concerning 2023–2025 Honda Odysseys failing to restart following automatic idle-stop operation. I am requesting that NHTSA investigate this recurring safety defect.
Filed Oct 19, 2026MI
My 2025 Honda Odyssey Touring has developed an intermittent malfunction involving the second-row passenger-side seatbelt buckle and warning system. The problem began at approximately 39,000 miles. The vehicle currently has 40,340 miles. The seatbelt warning system intermittently activates and produces repeated audible chimes even though the passenger's seatbelt is buckled. The warning can be triggered or interrupted by physically moving or wiggling the seatbelt buckle or latch assembly. This suggests an intermittent malfunction within the buckle assembly or its associated electrical components. I am concerned that the buckle assembly may be defective. Although the warning system is detecting a change in buckle status, I cannot determine whether the problem is limited to the electrical sensor or also affects the mechanical integrity of the buckle. This presents a potential occupant safety concern and causes repeated driver distraction due to false seatbelt warnings. I am requesting that NHTSA investigate this possible seatbelt buckle defect.
Filed Oct 18, 2026ME
Vehicle was at a stop light and engine turned off via the automatic idle engine stop. However, when I tried to press the gas the vehicle put itself in park and flashed a battery warning. I had to restart the car 4 times before it would turn back on and drive.
Filed Oct 16, 2026NC
I've now had multiple issues with the car shutting off during auto-idle - pull up to a traffic light and it automatically enters auto-idle. When you let off the brake, the van shuts off. Brought it to the dealer and it happened to them immediately - and the starter was replaced. I thought we were fixed, but it continues to happen (n=4) and Honda says "nothing to do, they've already replaced the starter" since they cant recreate it the day they tried. It most recently happened with my family in the car getting off the interstate and cars behind honking and approaching since we couldnt move the car quickly enough. There is no advanced warning, it just dies and the dash reboots - then indicates that you are not in park (as it tries to restart).
Filed Oct 16, 2026VA
There appears to be an issue with the automatic start-stop system. Occasionally, the engine will shut off at a stop light but fail to restart as expected. To get the vehicle running again, I have to turn the car off completely, wait a few seconds, and then start it back up.
Filed Oct 16, 2026PA
Start/stop function failed. After stopping at a red light the start/stop function turned off the engine. After lifting off the brake, the engine died when attempting restart. This required turning the vehicle completely off and back on to continue driving.
Filed Oct 16, 2026AL
The stop-start system that is supposed to idle at lights and when stopped causes the system to completely shut off. This is incredibly dangerous as I have to completely shut the car off and back on. It also eats at the battery so sometimes I have to 'start' multiple times before the engine turns over and actually starts.
Filed Oct 15, 2026CO
At a stop light, car threw a large BRAKE warning and stalled when the foot was taken off the brake. The car then had to put in park and turned off and on again. Having a car die in the middle of traffic, even when at a stop light, is not safe. We took the car to the dealership, where they informed us the starter needed replacement. Prior to this the car has been jerky when coming out of that idle stop feature, but hasn't stalled. The BRAKE warning did flash on the screen earlier that day but the car didn't stall.
Filed Oct 15, 2026WI
The idle stop failed to restart the vehicle on multiple occasions and killed the car in the middle of busy intersections. There is a known issue with the idle stop on late model Hondas and Zimbrick Honda said my VIN isn’t affected yet so I have to pay to have the known issue diagnosed. The problem is hard to duplicate but causes severe safety issues. I have an extended service contract and Honda is allowing unsafe vehicles to continue to operate with a known defect.
Filed Oct 15, 2026WI
My vehicle completely shut off while stopped at a stop light. I have to completely turn off and restart the car. This is super dangerous!
Filed Oct 15, 2026FL
The auto stop start system semi regularly stalls in the middle of traffic, shutting the van down. This requires a quick power off and restart that doesn't always succeed on the first attempt. This creates a risk of an accident, especially during busy traffic times. The dealer just told us that if it will start up eventually then the starter isn't bad, so there's nothing they can do. This is a known issue amongst Odyssey owners. The vehicle has only been inspected by the dealership. They don't acknowledge the problem, which is why I'm reporting it here. This is a common issue and nobody is doing anything about it. No warning signs. This has been occurring for several months, intermittently.
Filed Oct 14, 2026NC
Start/stop function failed. After stopping at a red light the start/stop function turned off the engine. After lifting off the brake, the engine died when attempting restart. This required turning the vehicle completely off and back on to continue driving.
Filed Oct 14, 2026TX
My 2025 Honda Odyssey has experienced repeated intermittent failures of the Auto Idle Stop system. When the vehicle stopped and the engine shut off as part of the Auto Idle Stop function, the engine sometimes failed to restart automatically as expected. The problem began after approximately the first eight months of ownership and occurred multiple times before the vehicle reached 36,000 miles. I reported the issue to the Honda dealership while the vehicle was still within the original 36,000-mile basic warranty mileage limit. The dealer asked me to leave the vehicle for two to three days for diagnosis, but because the problem was intermittent, I decided to monitor it and see whether it happened again. I reported the same issue to the dealer again at approximately 37,000 miles. I was then told that I would be charged for diagnosis and repair. This failure concerns me because the engine may not restart when needed at a traffic light or other stop, potentially leaving the vehicle unable to move when traffic resumes. I do not know the underlying mechanical or electrical cause, and the problem has not yet been diagnosed or repaired. I request that this recurring Auto Idle Stop no-restart problem be investigated. Please review whether it is related to any known Honda technical issue affecting Odyssey vehicles. The issue occurred repeatedly before 36,000 miles and was reported to the dealer before that mileage was reached. I would like this safety concern documented and investigated
Filed Oct 13, 2026OH
The auto stop/restart failed regularly at intersections. Being stopped at intersections and having to try to restart the vehicle was not safe for us or others at the intersection. The problem was not confirmed by the dealer, but the dealer did say they've seen similar issues with similar models. There were no error messages or warning lights. The dealer has tried resolving this by charging the battery.
Filed Oct 13, 2026VA
My car has shutoff due to an orange system error of the idle auto stop/start system. This appears connected to EA25004. When at a traffic light, after the engine shuts off, my car occasionally fails to restart or is slow to restart when reapplying the gas. If the error occurrs, it requires me to shut off the car, restart the car, and shift into drive before I can move. This is dangerous for following vehicles in close traffic. The dealership was unable to replicate the issue and did not provide replacement parts.
Filed Oct 12, 2026PA
Vehicle auto start/stop was turned on. Vehicle stopped at a red light, vehicle engine shut off. Upon releasing the brake pedal, vehicle engine failed to start, a series of warnings and messages flashed on the dashboard, then vehicle transmission slammed into Park, from Drive. Driver proceeded to turn the vehicle off entirely, and was able to successfully restart the vehicle and drive away. Dashcam video, which captured audio and video through windshield but not dashboard, available upon request (file size too large to submit via this form).
Filed Oct 12, 2026NY
The vehicle's Auto Idle Stop system shuts off the engine when stopped at a red light, and the engine intermittently fails to restart when the brake pedal is released. This has happened sporadically, including twice on October 11, 2026. Each time, the vehicle was left immobilized in an active traffic lane and would not move; I had to fully turn the vehicle off and restart it to drive again. This matches the defect under NHTSA engineering analysis EA25-004.
Filed Oct 12, 2026NY
Since XXX the engine fails to restart after Auto Idle Stop engages at a red light or stop. Vehicle shuts off. At least 10 times, ongoing. Relates to NHTSA EA25004. Honda case XXX open; Millennium Honda returned it Sept 22 without repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Filed Oct 12, 2026NJ
The Auto Idle Stop feature malfunctions when coming to a full stop with the brake pedal depressed. The car stopped and then the engine shut down. It was difficult to restart the engine. The concern is that I cannot move the vehicle until I am able to restart the engine which puts me in an unsafe situation, especially at intersections or in traffic. The message on the dash said to depress the brake and depress the start on/off button, which I did several times before the engine actually restarted.
Filed Oct 12, 2026AZ
I would like to report two incidents involving my 2025 Honda Odyssey Touring that may be relevant to NHTSA Engineering Analysis EA25004, which is investigating failures of the Auto Idle Stop system to restart the engine. The investigation includes 2018-2025 Honda Odyssey vehicles and concerns allegations that the engine fails to restart after an Auto Idle Stop event. On September 27, 2026, and again on October 12, 2026, my vehicle failed to restart after the Auto Idle Stop system shut off the engine while I was stopped at a red traffic light. When I attempted to proceed by releasing the brake and pressing the accelerator, the engine did not restart as expected. In both incidents, the vehicle automatically shifted into Park and displayed a message instructing me to restart the engine manually. This left me unable to proceed in an active traffic lane and created a potential safety hazard due to surrounding traffic. Both events occurred unexpectedly and without prior warning. The condition is consistent with reports of Auto Idle Stop no-restart failures that are the subject of EA25004. I respectfully request that this information be included in the ongoing investigation. Vehicle: 2025 Honda Odyssey Touring Incident Dates: September 27, 2026 and October 12, 2026 Failure Mode: Engine failed to restart following Auto Idle Stop activation; vehicle shifted to Park and required manual restart. Safety Impact: Vehicle became immobilized in an active traffic lane.
Filed Oct 12, 2026NC
The Honda Odyssey’s Auto Idle Stop/Restart system has repeatedly malfunctioned. When the vehicle comes to a stop and the automatic idle-stop feature engages, the engine fails to restart as intended. This has occurred on multiple occasions, indicating a recurring problem rather than an isolated incident. The exact defective component has not been determined. The vehicle is available for inspection upon request. This malfunction creates a serious safety hazard because the vehicle unexpectedly becomes immobilized in active traffic. When the engine fails to restart, I cannot immediately accelerate or move the vehicle as expected. This creates a risk of rear-end collisions, particularly at busy intersections, stoplights, and other situations where surrounding drivers reasonably expect traffic to move. The unpredictable nature of the failure makes it especially concerning because there is no way to anticipate when the vehicle will fail to restart. The fact that this has happened repeatedly increases my concern for the safety of my passengers, other motorists, and myself. No engine lights when this has occurred. I have to manually restart and it usually lags and cars behind me get mad and then try to zip around me. This makes me feel extremely unsafe- especially since buying this vehicle brand new.
Filed Oct 12, 2026GA
The auto idle stop is causing the van to not start up after stopping at red light or stop sign and it causes the van to completely go dead in middle of the road. You have to turn the van completely off, while people behind you are honking their horns at you, and then crank the van back up in order to get it to go again. All dash lights are on but the engine dies and will not start without having to shut the van off. This is very dangerous and frustrating for any vehicle to do this, but especially a 2025!!!! This happened today 10/12/2026 but has happened several times already with my family.
Filed Oct 11, 2026NJ
Vehicle is equipped with automatic engine idle-stop (auto stop/start). On multiple occasions, when the system shuts the engine off at a stoplight or in stopped traffic, the engine fails to restart automatically when the brake pedal is released. The vehicle is left immobilized in an active traffic lane. Restarting requires shifting to park and pressing the ignition button, and even then the restart is delayed, leaving the vehicle stranded in the intersection with cross traffic approaching. This has happened repeatedly and creates a serious safety risk: a vehicle that cannot move out of an intersection can be struck by cross traffic, and occupants, including children, are exposed. No crash, fire, or injury has occurred. There were no warning lamps or messages before the failures. The component is available for inspection upon request. The vehicle has not yet been inspected by a dealer or the manufacturer for this issue. NHTSA is already investigating this exact failure mode in this vehicle population (engineering analysis EA25004, failure to restart after auto idle-stop).
Filed Oct 11, 2026MD
The 2025 Odyssey Elite van randomly will completely stop at stop signs and traffic lights. This happens when the Automatic Idle Stop system is activated. The van will not restart once the brake is released. Instead, we have to go through various start/stop cycles to finally restart the van. This issue has been reported by countless owners and it is time for Honda to do a recall.
Filed Oct 11, 2026TX
Vehicle: 2025 Honda Odyssey Component: Electrical System / Engine / Powertrain (Auto Idle-Stop System) Description of Incident: While driving my 2025 Honda Odyssey, the vehicle experienced a dangerous failure of the Auto Idle-Stop feature. Upon coming to a complete stop at a traffic intersection, the system engaged normally and shut off the engine to conserve fuel. However, when traffic moved and I released the brake pedal to accelerate, the vehicle failed to restart. The engine stalled completely, the vehicle remained entirely immobilized in the middle of active traffic, and the engine could not be restarted automatically by the vehicle's computer systems. To get the vehicle moving again, I had to manually shift the transmission into Park (P) and repeatedly cycle the ignition via the Engine Start/Stop button. This delay left my family and me dangerously exposed to oncoming traffic and vulnerable to a rear-end collision. Diagnostic and Repair History: The vehicle is well within its 3-year factory warranty period. I took the vehicle to an authorized Honda dealership to address this specific defect. The dealership technicians diagnosed a voltage issue and replaced the 12V battery, claiming this would resolve the problem. However, the exact same failure occurred again shortly after leaving the dealership. The battery replacement did not fix the root cause. Safety Concern: Local dealership technicians do not currently possess a viable or permanent corporate fix from Honda for thi
Filed Oct 10, 2026UT
At 10 AM on Saturday, October 10, 2026, I experienced an issue with my 2025 Odyssey Touring while stopped at a traffic light waiting to turn left. The auto start-stop feature failed after around 1-2 minutes when I was about to go forward. The car was automatically put in accessory mode and I had to power cycle the car (park, turn off, restart) in the middle of a green turn. Had hazards on. Thankfully, I got it restarted before the next green but this is not acceptable. Serious safety issue. I am concerned this will happen again, so this feature will stay disabled until addressed by Honda.
Filed Oct 8, 2026UT
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.
Filed Oct 8, 2026NJ
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.
Filed Oct 7, 2026NE
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
Filed Oct 6, 2026TN
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
Filed Oct 5, 2026IN
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)
Filed Oct 5, 2026NY
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.
Filed Oct 4, 2026CA
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.
Complaints 1-50 of 447, newest first, reproduced as filed.