I have a 2017 FFE with about 20,000 miles. The last week has been bitter cold here in the Midwest. I have recently heard a terrible high pitched moaning sound when braking. At first it seamed like it only happened the first thing in the morning. As i would back out of my garage down my slanted driveway. But the last couple days it also happened when backing out of my parking spot at work when going to lunch. It seems it only happens when braking in reverse. Never once when braking forward. I have an appointment with the dealership next Friday but was curious if anyone else has experienced this.