So, I'm seeing this in the older models of the fusion hybrid, nothing on current years. After idling today for about 2 hours I was sitting in my jobs parking lot when the service advance Trac and hill start assist unavailable started flashing. I lost power steering when I moved the vehicle a short time later. After removing the negative from the battery terminal a couple of times it fixed nothing. Fast forward 12 hours got off work and started the vehicle. Every 2 hours I had started it and checked and it hadn't removed any ⚠️. Everything was gone power steering was back even looser than before. But no ill side effect. I'm the only owner of the vehicle, it's had every service done and whats been recommended directly by the dealership. First snow it has seen was last night. I made an appointment at the dealership but they're 3 weeks out. Is this an issue I should have checked out from what I've seen the dtc doesn't store these codes, so would this be a useless 200 dollar diag fee ? also mileage is 89,097 at current time