NHTSA Complaint #11494747 — 2022 FORD F-350 SD

Today I was getting ready to blow some snow out of my driveway and had to move my truck. It's normally parked at a slight incline where putting it in park is usually sufficient and have never needed to use a parking brake. When I re-parked the truck, I had to put it in 4WD to get up in the driveway because we had a lot of wet slushy snow. So after I get it parked, I put it back in 2WD, put it in park, and turn off the ignition. I then got out of the truck and started over to the snow blower to get back to work. I suddenly started seeing the truck rolling backwards as if it was in neutral (which is was not). I was running towards the truck to try and jump in and stop it, and then it suddenly stopped on it's own. But I bet it rolled back a good 3 or 4 feet before it finally stopped. It actually set off the alarm system in the truck, which was no surprise rolling that far. I feel this is definitely a safety issue because if a small child was behind the truck, or even myself, it could have been disastrous.