2024 Honda Odyssey electrical system problems

“While driving today at about 30 mph, the minivan suddenly braked on its own—despite there being no obstruction ahead—and began beeping. The word "Brake" appeared in large letters in the center of the panel, flashing, before suddenly releasing. My wife and I both suffered whiplash from the incident. There was nothing in front of the van; the only thing nearby was some cars parked on the curb along the side. My wife told me this has happened a couple of times before, and she reported it to Honda of Tomball. I'm very concerned that if we're driving at highway speeds and there are vehicles on both sides of our lane, this issue could occur again, and we could have a serious safety problem on our hands. In addition to this, we've been experiencing another issue: the van suddenly shifts into park when we come to a stoplight. This has happened three times. Yesterday they replaced the battery, but they still suspect it could be a starter issue.”

“Engine fails to restart after Auto Idle Stop - stalled in traffic twice on consecutive days. On XXX around noon, at [XXX], I was first in line in the left-turn lane at a red light, with my [XXX] daughter and another adult passenger aboard. The Auto Idle Stop system shut the engine off. When the green left-turn arrow came on, the engine did not restart and a stall warning appeared on the dash. I had to confirm the van was in Park with the brake applied, turn the vehicle completely off with the start/stop button, and press the start button many times before the engine started. The van sat stalled at the front of the turn lane, blocking traffic, for roughly 60 seconds during the green arrow. The night before, XXX around 11 pm, the same failure happened in the left-turn lane on [XXX]: the engine shut off at the red light under Auto Idle Stop, did not restart when the green arrow came on, and I was stalled in traffic for roughly 60 seconds going through the same restart process. Since about late XXX the engine has also at times restarted roughly after Auto Idle Stop, even when it does not stall. I could not read the exact warning message because I was stalled in…”

“The auto-stop/start feature in this vehicle, when activated, causes the engine to stall when starting back up. We have had the battery and starter both replaced, and it is still causing an issue. Now, even with the system deactivated, the vehicle will stall, most likely based on the increased wear on the starter. We have noticed that during initial startup, we have to press the ignition button several times before the vehicle actually starts, and often, when it does start, it struggles to start right away.”

“I believe the issue is the media oriented systems transport coaxial cable and FAKRA connector from the 2018-2023 recalls. The rear infotainment system does not load or display anything now. Same goes for the in cabin video and Apple car play. They do not work anymore either. There were no warnings before everything stop working. It just stopped while drive home.”

“Multiple times since new the van has failed to restart when the auto start/stop has activated. This leaves me in an intersection with a non running car that I need to figure out the right combination of buttons to get it started again. Today it escalated and refused to restart until I shut off the ignition, open the door, closed the door, and then started it. Honda will not do anything if they can not duplicate it. So I am left with a car that is getting more unsafe to drive.”

“Vehicle was stopped at a red light. Light turned green and the engine off would not restart the vehicle to go. Had to turn the car off, let reset, then restart while in traffic.”