Went down to my garage after the Prius had been off for at least 5 hours and heard a whirring kind of like a fan in the back half of the vehicle. I had never heard this before and it went on for at least 5 minutes then quit. My garage was probably around 60 degrees for most of that time, fwiw. Seems like the area of the battery fan but why would that need to run? Any ideas? Thanks!
Thanks...looks like it's the evaporation check...normal I guess. Wasn't really worried but definitely curious. Thanks!