My brakes also squeak but it only does it when I am going about 10 mph. It did it on the test drive, the shark said it was the new brakes. Never had something this big so we thought the shark was telling the truth, how dumb is that?
We stopped at a Freightliner shop at a truck stop for this issue and they said they would repair the brakes for $16.00 a wheel until they saw it was a motorhome, they would not work on it. I can see if you have a motorhome its $300.