2016 Chevrolet Silverado 1500 body & structure problems

Leaving a chiefs game in kansas city I was waiting in traffic. We slowly moved forward and my brake pedal went to the floor and would not stop the vehicle I ran into the truck in front of me . There was no damage to his bumper but I got a dent the size of a baseball. Later on the way home I relised that it was still doing in at low rpms so I took it to the dealership amd they said my vacume pump was going out!! At 45000 miles???? The mechanic said it was a very common problem.

The contact owns 2016 Chevrolet Silverado 1500. The contact stated that while inspecting the vehicle, the contact became aware of rust to the sub frame and there were horizontal lines to the sub frame which became progressively worse overtime. A dealer was contacted. The vehicle was taken to the dealer and the contract was informed that wax could be added to the rust and that the contact had to pay for the repair. The contact was informed that the failure was not under warranty. The vehicle was not repaired.