2017 Subaru Legacy Transmission and drivetrain Problems

“A 2017 Subaru Legacy was stopped on a hill, on the shoulder of a two lane service road. The driver, who was the car owner, placed the gear selector in park, left the motor idling, exited the vehicle, closed the driver side door, loaded several logs into the trunk, and slammed the trunk. The passenger remained in the vehicle, seated in the passenger seat. The motor idled for about 10 minutes after the driver exited the vehicle. No alarms sounded to alert the driver or passenger that the car was not left as intended—motor running and in park. …”

“Driving to work in the morning I began slowing down for a red light. When the vehicle get to ten miles an hour there was a loud bang and felt like the car downshifting. I stopped and checked nothing was abnormal , no warning lights or and signs of damage or failure and the vehicle continued to function normally. So I proceeded to work roughly 20 miles. About 30 minutes later as I was on the off ramp and at about the same speed of 10 miles per hour the vehicle had multiple loud bangs followed but screaching and metal grinding. …”

“On May 16, 2023 I was driving a friend home. We were stopped at a red light and felt an impact. My friend said, You've been hit. I went out to check. No one had hit the car. It had lurched forward while my foot was on the brake. On 6/1/23 I pulled out of a driveway, car was in drive, foot on brake, paused to set GPS, car lurched forward. I brought to the dealer. They said they drove it for seven miles and could not duplicate the problem. About a year prior, the car had also lurched, but at that time I was in drive doing approx 30 mph, and I used the brake to slow it back to my speed. …”

“The contact owns a 2017 Subaru Legacy. The contact stated that the vehicle was parked in the driveway on a hill and when he started to exit the vehicle it started to roll backwards down the driveway. The contact had to quickly turn the steering wheel in to a backwards u turn to turn the vehicle back into his yard. The contact avoided the vehicle crashing into the neighbor's yard. The contact was able to restart the vehicle and drive it back in to the driveway and put on the parking brakes. He also placed stones behind the two rear wheels to help prevent another backward roll. …”