While idling, the engine shuts off completely and requires the vehicle to be shifted into park and restarted before operation can continue. On multiple occasions, the engine has struggled to restart and cranked for several seconds before turning over. Honda of Tomball in Tomball, TX currently has it. This defect creates a significant safety hazard because the vehicle loses power unexpectedly while in traffic. The vehicle is immobilized until it can be shifted into Park and restarted, leaving us vulnerable to collisions or other accidents, particularly in busy intersections or congested roadways, and creates a serious safety risk to our family, children, and our daughter’s service dog. The vehicle has been presented to HOT multiple times for diagnosis and repair. This defect continues to happen. HOT has inspected this during multiple repair visits. To our knowledge, the manufacturer has not directly inspected the vehicle. (I have requested it with both Honda of Tomball and Honda of America.) No warning lamps or dashboard messages appeared prior to the stalling events. The failure occurs without warning while the vehicle is stopped in Drive. The primary symptom is sudden engine shutdown, followed by difficulty restarting in some instances. This issue began shortly after delivery of the vehicle and has continued intermittently. First documented time of problem was September 2025. Most recent is May 2026.
2025 Honda Odyssey engine complaints
Page 8 of 10: complaints 191 to 220 of 263, newest first, as owners wrote them.
While idling, the engine shuts off completely and requires the vehicle to be shifted into park and restarted before operation can continue. On multiple occasions, the engine has struggled to restart and cranked for several seconds before turning over. Honda of Tomball in Tomball, TX currently has it. This defect creates a significant safety hazard because the vehicle loses power unexpectedly while in traffic. The vehicle is immobilized until it can be shifted into Park and restarted, leaving us vulnerable to collisions or other accidents, particularly in busy intersections or congested roadways, and creates a serious safety risk to our family, children, and our daughter’s service dog. The vehicle has been presented to HOT multiple times for diagnosis and repair. This defect continues to happen. HOT has inspected this during multiple repair visits. To our knowledge, the manufacturer has not directly inspected the vehicle. (I have requested it with both Honda of Tomball and Honda of America.) No warning lamps or dashboard messages appeared prior to the stalling events. The failure occurs without warning while the vehicle is stopped in Drive. The primary symptom is sudden engine shutdown, followed by difficulty restarting in some instances. This issue began shortly after delivery of the vehicle and has continued intermittently. First documented time of problem was September 2025. Most recent is May 2026.
The contact owns a 2025 Honda Odyssey. The contact stated that while driving approximately 20 MPH, the vehicle inadvertently shut off in the middle of the road. There was no warning light illuminated. The vehicle was immediately restarted and driven to the residence. Additionally, while at a complete stop at a red traffic light, the engine Auto START/STOP system failed to restart the vehicle after releasing the brake pedal. The contact pressed the Push to Start button to manually restart the vehicle. The contact stated that the failure had occurred on several occasions. The manufacturer and the local dealer were notified of the failure. The cause of the failure was not yet determined. The failure mileage was 18,266.
The vehicle's auto idle stop system is malfunctioning, resulting in the engine failing to restart from a complete stop. This total failure has occurred on five separate occasions, including while stopped in active traffic intersections. Prior to these total restart failures, the vehicle showed the following symptoms: 1) Initially, the vehicle experienced rough engine idling, abnormal vibrations, and a raw gasoline odor after driving. 2) This progressed to a noticeable delay between releasing the brake pedal and the engine attempting to ignite, during which the starter sometimes sounded strained. 3) This has culminated in the current defect where the engine shuts off normally when stopped at an intersection, but completely fails to immediately restart when the brake is released. This defect completely immobilizes the vehicle in active traffic lanes, exposing us to an immediate and severe risk of a rear-end collision. When the engine fails to restart, the vehicle locks the transmission out of drive and triggers a warning on the dashboard. It is a highly hazardous situation, especially with a lot of distracted drivers on the roadways.
The auto-idle off feature - yes The stall happened in a situation where cars behind me would have expected me to start moving and could have resulted in a rear-end collision. The vehicle has stalled like this three times. The other two times were not in public or traffic situations. It has not been reproduced or confirmed by a dealer or service center. It has not been inspected by anyone else. There were no warning lamps or messages prior to the failure, only after.
I've had several incidents of my car stalling occur since the purchase of the vehicle over the span of 16 months, probably around a dozen times or so. I will stop at a stop light and the vehicle's idle-stop system does not function properly. The vehicle shuts off but does not auto-restart. When I try to manually restart, nothing happens. There have been times where it took several times before the vehicle started back up. Even more seriously, I've stopped in the middle of traffic and the same thing happened. We have had a couple of very scary incidents of cars having to move over a lane to pass our idle vehicle. Thankfully no car hit us due to our idled vehicle. We have owned this vehicle for less than 1.5 years and have had two battery replacements. I've also had the vehicle not start from my garage or parking lot. When I try to start the vehicle a second time, there are times where the start button feels very firm and doesn't push down easily. I have to push the start button several times before the vehicle starts. I'm grateful there have not been any major accidents occur but this is an extremely unsafe situation for the driver and their passengers.
Starter failed to resume engine operation when auto start/stop disengaged motor at a stop light. This resulted in the vehicle being briefly inoperable after the light turned green, requiring other motorists to go around and leaving the vehicle stalled until engine functionality was resumed. Issue was reproduced by dealership, starter motor was deemed defective and was replaced under warranty. Vehicle had rough starts when resuming from auto stop for at least a week leading up to this incident.
Many, many times vehicle stop/start feature has failed to start car. Have been stranded at busy intersection having to put car in park and restart car. Extremely dangerous. Took car to dealer and they deny there are any problems.
On multiple occasions our vehicle has turned off at a stop (auto start/stop) and failed to restart upon pressing the accelerator. It then takes several seconds to be able to restart and get moving.
This is the second time I have taken it to the dealership. When sitting at a stop and the automatic stop and start happens, it acts like it does not want to crank back up. Last time the dealership said it was the battery; they replaced the battery, but that has not fixed the issue. if I am at a stoplight and it does not start back, that is not a good feeling my wife now does not want to drive the van anymore because of the seriousness of this issue as well has having young children in the car. This is a van that was bought brand new and has been in the shop more than it has been driven.
When Idle start/stop function is engaged and then goes to restart, the engine hesitates or fails to restart all together.
Engine Shutoff/Idle Stop Failure: The vehicle fails to restart after the automatic idle stop engages in traffic, requiring a manual restart. Electrical System Malfunctions: car dying at stoplights, loss of power, and, in some cases had to restart in "limp mode" where the vehicle is restricted to 1st gear,not very safe on major highways. Reported this to Honda during service on 3-16-26, they didn’t find anything? Has happened 7 times since it was serviced.
The contact owns a 2025 Honda Odyssey. The contact stated that after coming to a complete stop, the Auto START/STOP feature engaged, causing the vehicle to idle, the transmission shifted to park(P), and the engine failed to restart independently, and the vehicle turned off unexpectedly. The battery warning light was illuminated. The vehicle was restarted. Additionally, the vehicle made a clanking sound while driving over a bump or while making a turn. The vehicle was taken to the dealer, and it was determined that the battery had low voltage, and the contact was advised to deactivate the Auto START/STOP feature. The vehicle was not repaired. The contact related the failure to the federal safety agency Action Number: EA25004 (Engine and Engine Cooling). The manufacturer was not made aware of the failure. The failure mileage was approximately 10,000.
Upon coming to a complete stop, the engine has failed to reengage causing the car to stall in traffic. The car has restarted after being turned off and restarting but with traffic moving all around us and cars behind honking because they think we are failing to go. If we happened to stop in an intersection it could be even more dangerous. This has happened 3 times so far I. The past couple of months. At first I thought we accidentally pressed a wrong button or did something that caused the engine to stall, but upon research and talking to others with Hondas this appears to be a known issue. I am taking the car to the dealership on 4/10/26 to get looked at. There was no warning light or error messages prior to to happening. We bought the car new and it has only 10,000 miles on it.
The Auto Idle Stop system on my 2025 Honda Odyssey fails to restart the engine when the brake pedal is released quickly after a full stop. When this occurs, the vehicle stalls completely in traffic and must be manually restarted by the driver. This has happened multiple times and is reproducible. The failed component is the Auto Idle Stop/engine restart system. The vehicle is available for inspection. My safety and the safety of others has been put at risk multiple times because the vehicle stalled at traffic lights in active traffic, leaving me unable to accelerate through an intersection. The problem has been confirmed by Honda Marysville dealership. The dealer stated they could not repair the issue and advised me to modify my driving behavior as a workaround. No repair was performed. The vehicle has been inspected by the selling dealership. A message appears during the failure telling me to restart the car. The problem first appeared within the first year of ownership on a brand new vehicle with basically zero miles at purchase. The cause appears to be a defect in the Auto Idle Stop restart system that fails under specific braking conditions.
When stopped at a red light, the vehicle’s auto off system turned the engine off. When the light turned green and I removed my foot from the brake, the engine stalled and would not restart. I pushed the start button several times, put the vehicle in park, pushed the start button a few more times, and finally got it to restart. Luckily, this happened leaving my neighborhood and not in a more precarious situation. This has happened approximately 20 times now. I’ve had the vehicle inspected by the dealer. They could not replicate the issue, but acknowledged that Honda knows it is an issue. They aren’t willing to fix it until there is a recall on the vehicles. In the meantime, I have a one year old vehicle that sputters and struggles to restart more often than not. I have had the vehicle stall like this after the auto off system turned the engine off when trying to merge into traffic on the interstate. I had a near miss to an accident at that time because the vehicle stalled and would not restart.
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.
This vehicle comes with idle stop. Many times especially at red light, the idle stop switches off the engine but then it does not restart automatically. We have to switch off the car and then restart it again. This takes some time. In the meantime, it is the panic with cars honking behind us.
My 2025 Honda Odyssey has had trouble turning on since it has been about 9 months old. It doesn't always turn on from being off. It doesn't always turn on when the vehicle is already on and the auto-start-stop system turns the engine off. More often than not it struggles to start but eventually does. I took it in for service and the dealership replaced the battery. It continued to not start. The new battery did not improve the symptoms. I scheduled another appointment for service and the dealership kept lying and gaslighting me into believing that they did something to improve the symptoms. They claimed to have updated the computer system software/firmware versions. I asked which ones were updated and they said that none were, it was all up to date. They claimed to have "reset" the auto-start-stop system. I asked how that would improve performance when the vehicle doesn't start from being off as well. The vehicle is unsafe to drive. It turns off at stop lights, stop signs, in medians when I am trying to make turns. The engine not restarting in parking lots from a complete stop is also very concerning. I hate and fear my Honda and I am scared to drive it. I have taken it to multiple dealerships to get it fixed and none will do anything. I have a video recorded after this occurred at a red light. The video shows the status of the vehicle and attempts to restart it. This was recorded February 19th 2026.
Vehicle failed to restart after Auto Idle Stop engaged while stopped in traffic. The engine shut off as expected but did not restart when releasing the brake pedal. A warning message appeared briefly on the dashboard but could not be fully read due to traffic conditions. The vehicle remained unresponsive until I shifted into Park and manually restarted the engine. This has occurred intermittently. The vehicle was previously evaluated by a dealer for the same issue, and the battery was replaced at approximately 15,000 miles. The problem has continued to occur after battery replacement. This creates a safety concern due to inability to move the vehicle in active traffic.
My 2025 Honda Odyssey has failed multiple times in the middle of the road when coming to a complete stop. Auto idle engages and when I try to press the gas the car malfunctions. I have to turn off the car and turn it back on again for it to start. Also at times the interior of the car will start to smell like gas.
At a stoplight vehicle turned off and gave a battery light and vehicle lost all power and placed vehicle in park. A warning message came up very quickly about something wrong with the auto start/stop system on display. Vehicle remained off until after opening door and pressing engine start stop button multiple times along with depressing and releasing brake pedal multiple times. This occurred the first time in late February 2026 then again on 3/21/26. Vehicle has 46,880 miles currently.
I’m experiencing issues with the Auto Idle Stop system. The engine fails to restart on its own after a complete stop. I get an error message and I have to manually restart. This has happed at stoplights and in the middle of an intersection during heavy traffic which is a big safety issue.
After stop at traffic light with air conditioning on, the auto idle stop system engaged. When the brake was released, the engine stalled, able to be restarted after 5-10s. Problem exactly matches NHSTA investigation EA25004.
the car will shut off at stop lights and randomly not start back up when the light turns green, then it will take a few minutes to start back up using the push button, this ONLY occurs with the automatic start stop feature of the car my wife drives the car with our two young children and being stuck in intersections randomly is not safe for anyone ,. we have told the dealer about the issue and they have failed to duplicate the issue and said nothing is wrong,
After a drive, shut it off, walk back to car within 2 minutes, car wont start. It cranked but failed. Never happen in cold start, but always after a drive. Happen about 8times in 9,000 miles and is more and more frequent now.
This vehicle is a 1 year old (2025) Honda Odyssey with roughly 11,000 miles. On two separate occasions now, the auto start-stop feature has caused the engine to die altogether. On both occasions, the vehicle stopped at a red light in a busy intersection, the auto start-stop feature turned off the engine (intentionally), but when the light turned green and my foot came off the brake and onto the gas pedal, the vehicle died entirely. A number of lights and an error message illuminated on the dash board. From my online searches, it seems as though this is a very common issue. 1. What component or system failed or malfunctioned, and is it available for inspection upon request? Auto start-stop / engine. No not available. 2. How was your safety or the safety of others put at risk? Having your vehicle die at a busy intersection or stop sign is a huge risk. It can cause others to try and swerve around you, or it can cause someone not paying attention to rear end you. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? The vehicle will be brought to the dealer in the coming days. Unfortunately this is my only vehicle and I cannot afford to lose it for an extended amount of time, therefore I have to prolong inspection and servicing. The issue has happened to me twice, and has happened to countless others online. According to others on the internet, the dealers are typically slow to address this issue, and even when "addressed" the issues seem to continue. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No, see #3. 5. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No warnings prior to the engine cutting out altogether. Only a message after the failures. In both cases I do not remember what the messages said because I was scrambling to restart my car in a busy intersection.
The contact owns a 2025 Honda Odyssey. While the contact’s wife was stopped at a red light, the Auto START/STOP feature engaged, and the engine failed to automatically turn off as designed. The brake pedal was released, and the vehicle completely shut off. The vehicle was restarted, and the vehicle operated normally. The cause of the failure was not yet determined. The manufacturer and local dealer were not yet contacted. The contact was informed of the federal safety agency Action Number: EA25004 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the investigation. The failure mileage was approximately 23,000.
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.
i bought this van brand new for over $53000 and it has been hesitating to start for months. i had the battery tested and came back good. The van hesitates to start and sometimes i have to redo the push button because it fails to start the first time. Yesterday, 02/23/2026 the van left myself and the kids stranded at walmart. it would not start for anything yet the lights and radio work and acted like it was not the battery. i had to call my husband to come get us. we went back hours later to jump it and it started. something is faulty with the started or electrical system to start it. i have another appointment to test the battery and i know its going to test good because i just had this done a month ago and it still hesitates to start. i am not impressed at all and readying online that i am not the only one having this problem. it needs looked into.
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