2024 Honda Odyssey: won't start

Filed Oct 30, 2026 · SC

Auto Idle-Stop (AIS) system: the engine shutting off and failing to restart. Happens constantly at intersections etc making it unsafe for me and my children. Someone could potentially crash into me etc as it takes longer for me to turn the car on, put it back in drive, and restart the engine. I have an appt at the dealer. Theres no warning, message or problems on the dash. It just shuts off. I also occasionally have a problem with my remote start, the engine wont turn over.

Filed Aug 31, 2026 · Electrical · NC

My 2024 Honda Odyssey Elite has had two recent incidents of car going into idle and won't start up. The more serious one happened while I was stopped waiting to make a left turn. The Auto Idle Stop system shut the engine off when I was waiting on. Y left turn engine did not restart. I was stuck in the roadway for about two minutes before I was able to start the vehicle again. The red battery warning light was on while the engine would not restart. A few days prior during a trip from [XXX] to [XXX] the vehicle also would not start after I had been sitting with the engine off and accessories running at a gas station. After turning off the A/C fan, rear entertainment system, and unplugging my phone, the vehicle eventually started. I took the vehicle to a Honda dealer (Honda of [XXX]) They inspected it but said they could not reproduce the problem, so no repair was made. And they refuse to use my warranty to fix it. The vehicle is available for further inspection. My main safety concern is that the Auto Idle Stop system can shut the engine off in traffic and then fail to restart, leaving the vehicle disabled in an intersection like what happened to me. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 29, 2026 · WI

While stopped at a red light on a busy road my car engine stopped and usually it automatically restarted when I let off the gas but it would not start and the engine would not turn on. The car was stalled and it took multiple attempts to get the engine to restart. This has happened 3 times now. I have had the battery tested and the battery is good and my mechanic believes it is an issue with the starter

Filed Aug 6, 2026 · Transmission · MI

On 2 occasions now automatic Start/Stop system has failed to restart. First was approximately 5 weeks ago and Second was Monday 3 Aug 2026. Dealer on first occurrence said there was a loose wire. Have not been to Dealer on 2nd occurrence yet. Situation in both cases is the vehicle was seemingly operating normally with no warnings displayed and I stopped in traffic. When traffic cleared and I tried to proceed; the vehicle was non responsive and would not start when I activated the normal start sequence.

Filed Jul 31, 2026 · Electrical, Engine · TX

Car purchased July 4, 2024. Idle stop/start was working but after several months, it became defective. After driving for some time, idle stop/start wouldn't work properly and cut the engine off when idling. I would have to turn the car, open my door, and try to restart the car. It also occurs after parking, turning off the car and less than 10-15min attempt to restart. Most of the time, it'll start after 1 or 2 attempts. Except today 07/31/2026, I got home and parked. After 20min, I tried to start my car and after 10-15 attempts, it wouldn't start. After waiting 2 hours, the car finally started.

Filed Jun 3, 2026 · OR

After stopping at a red light behind a few cars in a left turn lane, the Auto Idle Stop (AIS) system turned off the engine. A moment later the light turned green and I let my foot up from the brake pedal. The engine failed to start. The hazard lights turned on automatically. I reapplied pressure to the brake and pressed the Engine Start/Stop button, which had no effect. Electrical systems remained active (i.e. the car did not turn off completely), but the engine also didn't start. I ensured the vehicle was in park and stepped out to verify the fuel door was closed (I had just filled the tank) and check the battery connections. Cars were going around us on the passenger side, and oncoming traffic was very close to me on the driver's side. I was concerned for myself and my passengers. No one was injured, nor was there a collision. After returning to the driver's seat, I tried the Engine Start/Stop button again. This time the car shut down. I waited a minute, then started the car. The engine started successfully. The vehicle is available for inspection. The problem has not been reproduced. We have been disabling AIS since the incident, so it's unlikely to happen again. The problem has not been confirmed by a dealer or service center, nor has it been inspected by anyone yet. I noticed the engine being slightly slower to restart after AIS stopped it in the few weeks leading up to the incident. There were no other symptoms I noticed.

Filed Apr 8, 2026 · Electrical, Transmission · CA

My car is experiencing the starting issue that is listed as auto start/stop feature. However, since I almost always have the AC on or start/stop disabled because the car will not start when hot after a few stops and was scared it would do it in traffic. So far I can get it started again but need to completely turn car off and try again, sometimes more than once. Had been going on for a year and the dealer has replaced battery then the next services said nothing wrong. Now the car is out of warranty and the starting issues getting worse and have finally found online that others are experiencing similar issues. I have forgotten to turn off start/stop a couple times and been stranded in traffic as well when car auto stopped at red light and did not restart causing me to be stuck until i could get it restarted.

Filed Dec 30, 2025 · Electrical, Engine · MA

Car doesn't start, has needed to be jumped almost 20 times in a year. Auto start stop has shut the car off in intersections