2020 HONDA ODYSSEY Complaints

I am submitting this complaint regarding a faulty Multi-Model Seat Weight Sensor (SWS) in my 2020 Honda Odyssey. I understand that NHTSA Recall 24V-064 covers this issue for certain vehicles; however, my VIN is not included, even though my vehicle is exhibiting the same malfunction described in the recall notice. Multiple independent mechanics and certified airbag technicians have inspected my vehicle and confirmed that the SRS (Supplemental Restraint System) circuit is open, indicating that the front passenger airbag will not deploy in the event of a collision. This represents a serious safety hazard consistent with the defect outlined in the official recall documentation (NHTSA Recall 24V-064 Report: [XXX] ) The warning light for this malfunction was present when I purchased the vehicle in August 2025. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Honda Odyssey Idle Stop system failure Vehicle: 2020 Honda Odyssey (Elite) Incident description: While driving, the vehicle's "Idle Stop" system engaged as I came to a complete stop at [e.g., a traffic light, intersection, stop sign]. The engine shut off as designed, but failed to restart automatically when I released the brake pedal. This left my vehicle stalled and disabled in the middle of [e.g., an intersection, a lane of traffic] with no forward power. I was scared as there were lots of cars behind me in the intersection. This has happened over a dozen times. Safety risk: This failure created an immediate and dangerous safety hazard. My vehicle was a risk for being rear-ended by traffic from behind, and my family was stranded in a vulnerable position. The vehicle was unable to move out of harm's way, and I had to put the vehicle in park and manually restart the engine. This is unacceptable for a system designed to work seamlessly and automatically. Additional information: This is not an isolated incident. The auto start-stop failure has occurred multiple times since March 2025. The system failure has put me and my passengers in a position of significant risk multiple times. Failed component: The vehicle's "Auto Idle Stop" (AIS) system, which failed to restart the engine after it was automatically shut off. Resolution: An immediate and permanent recall is necessary to address this dangerous defect. Existing service bulletins have not corrected the problem. I urge the NHTSA to require Honda to provide an effective, long-term solution to ensure the safety of Odyssey owners.

Windshield monocular camera has became faulty. No longer have adaptive cruise control, lane departure, forward collision braking. Looks like about a $1,500 expense to fix. Seems like a very common problem.

On Sunday 9/28/2025 I started up my vehicle and received numerous error messages: Collision Mitigation Braking System (CMBS) Road Departure Mitigation System (RDM) Lane Keeping Assist System (LKAS) Adaptive Cruise Control (ACC) Brake system light I contacted the dealership in which I purchased the vehicle and they did diagnostics. It came back that the front facing camera needs to be replaced. Which is a $2000 repair. After researching online this seems to be a common issue with years 2018-2020 odysseys. This needs to be investigated and a recall issued from Honda USA for remedy as these error messages are concerning when they pop up repeatedly.

The multipurpose camera above the rearview mirror has stopped working. It controls several systems including; adaptive cruise control, automatic brake system, forward collision warning, lane keeping assistance, lane departure warning, automatic high beam control. Every time I start the vehicle I have to clear 6 different malfunction warnings and non of the effected systems will function. There is an increased risk of accidents. I just had a vehicle diagnostic ran at Flow Honda of Charlottesville VA and they quoted me a price of $2,060 to replace the part.

When driving from West Hartford to Westerly on June 3, serious banging started coming from the left rear undercarriage. I stopped by a local Midas shop which identified the problem as a totally broken rear spring which created a dangerous driving situation. At the time, the van had 57K miles on it. The shop strongly advised that we should consider the van as inoperable, and we subsequently had them make repairs. I contacted the dealer, Westbrook Honda in Westbrook CT,. The service manager relayed that he had never heard of a broken spring on a vehicle with these few miles, but the certified warranty coverage expired in August 2024. He recommended I contact Honda Customer Service as this failure appeared to warrant consideration due to its rarity and severity. Honda Customer Service responded by agreeing to cover damage for only half the incurred cost because we didn't bring it to a Honda dealership, despite doing that would have constituted a severe driving safety exposure. Their acknowledgement indicates that this may be evidence of faulty manufacturing of the spring which would appear to warrant NHTSA review and assessment. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving and the message Power Tailgate Problem popped up on dashboard of Honda Odyssey 2020. When I got to my destination I tried to open the trunk and it would not open. I took the car to Honda and they said there's water somewhere that caused problem to the tailgate. I spent over $1,000 to fix it and two weeks after getting the car back, that same message popped up and the trunk would not open again. I did research on this and found out that this is a known issue/defect for all 2018-2021 models. Honda did not take any responsibility and blamed me for not taking the car to a body shop to fix whatever issue that's causing water to infiltrate. I found that there has been class action lawsuits involving Honda tailgate issue for a defective seal on 2018-2021 Honda Odyssey models that allow water to infiltrate, yet Honda will not recall and fix it.

My Honda's multipurpose camera system has failed without warning or apparent cause. Upon starting my vehicle, I now receive multiple alert lights indicating simultaneous failures in critical safety systems including: Adaptive Cruise Control (ACC) Lane Keeping Assist System (LKAS) Collision Mitigation System Road Departure Mitigation System Auto High Beam functionality Occasionally, all the system failure alerts go away. According to my local Honda dealership, this represents an "internal failure" of the multipurpose camera unit (code U300-49). The dealership wants >$2,000 to fix the issue that appears to be a widespread known problem. There was no warning before the complete system shutdown, and all safety features connected to this camera are now non-functional.

The contact owns a 2020 Honda Odyssey. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to coast to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the connecting rod bearings, resulting in damages to the engine, causing the engine to seize. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling), but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 130,000.

The car had a leak in the trunk that was not our fault it was not due to an accident but rather came that way when we bought it brand new. We were unaware of this leak and now our entire trunk control panel is flooded and the trunk is totally useless as it will not open at all, not even manually. The only way to open it is to crawl to the back and open it from the inside. I asked Honda for a diagnostic and it cost me $200 for them to tell me “yeah we see this issue a lot in the older odyssey” and that it would cost over $1000 to fix. But this was not normal wear and tear or anything caused from lack of care in my part but it was made that way. I am shocked that when I did research on this issue it was happening to ALOT of people and idk why this isn’t part of the recall list.