I got some work done on my 2015 Prius (130K) today, and now I’m getting like a squeaking loud noise intermittently between braking and slowing down/starting. Wasn’t there prior, but my rear breaks were 4mm when I came in . Any idea?? Work that was done: Brake Flush Inverter Coolant Cooling System Flush Auto Transmission Hybrid Drain & Fill 120k Service (Oil Change, Spark Plugs, etc)
Perhaps they bent the brake disk shield and it's scrapping wheel... And it's probably just enough that you hear it when you are going slower.
Would this be engine and inverter coolant drain and fill? Just to clarify, not sure how it would be relevant.