Adaptive Cruise Control problems of the 2025 Honda Odyssey

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

We get a warning light saying "adaptive cruise control system problem". Van has 4200 miles and it happens during hot days, usually at lunch time. I took it to dealer "Honda cars of rock hill, SC" but they told me there is no code showing up in the van. I emailed Honda America with video but so far no response. The system just goes crazy, beeping and the cruise control is no responsive to cancel button or anything. We are not even using the adaptive cruise control when this happens. After you drive for a while, it goes away, like nothing happened. But when another hot summer day comes, around lunch time, it goes. . . It does it pretty much during high temps. Never in the evening or night time. Here is link to youtube video I sent to Honda: [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

If the car is standing in sun on a very hot day, upon starting the engine it will start beeping with all these errors blinking and disabling these controls. Once the engine runs for 15,20 minutes and the car cools down, the warnings disappear too.

With adaptive cruise control engaged and set on any of the four options, my Odyssey’s speed slows down for a short time period then speeds up again as I approach the vehicle I intend to pass. This happens when my Odyssey is about a car length behind the vehicle I intend to pass. This happens when I’m passing a vehicle on the left or right side. This doesn’t happen every time I pass a vehicle with adaptive cruse control engaged. I had this Odyssey in a Honda dealership shop today, February 26, 2026, to hopefully fix this issue. I can’t confirm this but was told by the service agent at the dealership that when this happens, the brake lights will turn on. The fix the dealership service recommended was to set the adaptive cruse control to the minimum following distance setting. I’m going to quote the service technician’s written comment word for word. “have found this to be a pretty normal symptom of the adaptive cruse system. ” I take that as meaning, the service technician has seen this before and it is normal for this vehicle. If this is “normal”, there is a major safety issue with this Odyssey. On the way home from the appointment at the dealership service department I had the adaptive cruse control at it’s closest following setting. I passed a vehicle on the left and this issue happened again. When I got home, I called the service manager and told him my Odyssey did have the same issue of slowing down even though the adaptive cruse control was set to the closest following distance setting. One more thing to note, the service technician did take my Odyssey for a test drive and did experience and there for confirm the above stated issue with the vehicle slowing down. I did speak with the service manager at the Honda dealership about this issue. He was unaware of any other vehicle with this issue and said he would check into it and get back to me. I purchased this Odyssey new on January 16, 2025. This problem existed since the day I have owned it.