I have a 2020 outback 2.5L and I am not sure what it is called but when I come to a stop the engine turns off to save fuel I believe it’s called the “ass” but I could be mistaken. But after the system restarts the engine and I start to accelerate there is a high pitch whine/screech which persists for a varied amount of time. Typically when I stop accelerating the sound stops and doesn’t come back until the system reengages. On occasion there is the sound when the system engages/ shuts off the engine . Has any one else experienced this issue or have a suggestion? The weather has started to get colder where I live 40s at night 60-70s during the day. Thank you for your thoughts.