2023 Honda Odyssey electrical system problems

“My 2023 Honda Odyssey (approximately 38,000 miles) has an intermittent no-crank/no-start condition. Pressing the push-button start produces no crank at all; the engine only starts on exactly the fourth press, consistently. The battery was tested and is good. The condition worsened noticeably after a high-pressure car wash, suggesting moisture intrusion. This matches Honda Technical Service Bulletin 23-023 ("Engine Does Not Crank"), which covers 2018–2023 Odysseys and attributes the defect to water entering the starter motor. The vehicle is about 2,000 miles past the 36,000-mile bumper-to-bumper warranty. I am concerned the condition will degrade without warning and leave my family — including small children — stranded. The vehicle is scheduled for diagnosis at Tracy Honda in [XXX] on XXX.”

“My 2023 Honda Odyssey experienced a serious malfunction of the Auto Idle Stop system at approximately 32,987 miles. While stopped at a traffic light, the engine automatically shut off as designed but failed to restart when I attempted to move forward. This created a dangerous situation because my vehicle was unable to move when the traffic light changed, potentially putting me, my entire family at risk of a rear-end collision. The vehicle's battery had been replaced only a few months earlier, so this problem occurred despite having a relatively new battery. After researching the issue online, I found numerous reports of similar Auto Idle Stop failures involving Honda Odyssey vehicles. This appears to be a recurring safety concern rather than an isolated incident. To my knowledge, there is currently no applicable recall providing a free repair for my vehicle. I believe this is a significant safety defect that Honda should investigate and address at no cost to affected owners. A vehicle should not unexpectedly fail to restart in active traffic, regardless of its age or mileage. I am requesting that NHTSA investigate this issue and determine whether a safety recall is warranted.”

“The infotainment screen will go blank and will no longer show the backup camera at all. The FAKRA recall was performed at the Honda dealership when I first purchased the car new. I did not have any significant issues until around July of 2026. First, the speakers will crackle with static noise, then the volume cuts off completely, then the screen goes black and message pops up "Network Communication Lost, MOST Net Off". Then the screen will completely go blank and the backup camera will not turn on when in reverse. For the past two weeks the screen/radio/backup camera does not turn on at all. Completely black screen the entire time while driving, even with repeated power cycles. This is obviously related to the FAKRA recall that did not fix the issue. This is a major safety issue for a large, family vehicle to not have a functioning backup camera; something that has been federally required since 2016. A new recall needs to be issued so that the issue can be fixed correctly.”

“Seems like due to the auto idle, it makes the engine idle so low that it dies- my car died in middle of the road- the first time, I had it jumped, and mechanic said it was a fluke, second time, despite the testing not showing any issue, he said we can try to replace the battery, so we did, but 6 weeks later my car died, and it took 5 attempts to get it to restart with the external battery pack! each time there was NO issue with the electrical system- my A/C was running fine, the whole dashboard showed up fine. Seems like according to a class action suit in california this is an issue Honda KNEW about! People now know to press the Auto-off button so the car does not auto idle- but this needs to be done EACH time, or you will end up KILLING your engine! How is this allowed to be sold?? I was stuck in MIDDLE of a busy street with my DAUGHTER in the car!!!!”

“When we are idling (at a red light), the engine will suddenly stop. We believe this is the feature of the start-stop system used to save gasoline. We will then have to completely restart the car as the car has been turned off. This creates a huge safety hazard at intersections. We have asked Honda about it twice now and currently replacing the starter. Our car is a little over 3 years ago with about 40k miles. The starter should not be failing at this point and we believe it is due to this start stop issue. The starter cost us $1400 in a car that is just over 3 years old with about 40k miles.”

“While driving from [XXX] to [XXX], all of the safety systems started to fail. We had driven about 45 minutes from our starting point. As the system started to fail, they would flash across the screen on the dashboard saying each one that was failing. We pulled over to the side of the road, and my husband popped the hood and flames started coming out of the hood, closest to the dashboard and windshield. We called 911 and by the time they reached our location, the entire vehicle was engulfed in flames.”