On 11 Apr 2025, I was driving my 2023 Honda Passport at night on a toll road in clear weather when my infant son began screaming in distress. I pulled over onto the shoulder, partially onto a dirt area with bushes for more space. I pressed the “Park” button, unbuckled my seatbelt, and opened the driver door to step out. As I did, the vehicle suddenly began rolling forward despite being in Park with the door open and the seatbelt off. I fell trying to exit and had to roll away from the vehicle as it continued moving. A passenger jumped into the front seat and stopped it. This wasn’t a lurch or slight movement the car rolled enough to put me in danger. It behaved as if it were in Neutral, not Park. I later tested the same conditions (engine running, door open, seatbelt off), and the vehicle auto-shifted to Park as designed. This confirms the safety feature failed in that moment. No warning lights, alerts, or error messages appeared before or during the incident. I reported the issue to Honda and asked the dealer to inspect the transmission and interlock systems. No faults or diagnostic codes were found. The service advisor said Park can take a second to engage, but the movement I experienced was excessive and unsafe. This is a serious safety concern, especially with children in the car. I’ve also seen other reports of similar issues in Passport and Pilot forums. I have manageable scrapes and a joint effusion in my knee