general problems of the 2003 Chevrolet Silverado

After noticing a gas leak, I asked my father to drive my truck to the dealership for repair. When he put the truck into reverse he had no brakes and had to use the emergency brake before rolling into my mother's car behind him. Upon inspection by the dealership, all of my brake lines and gas lines were badly rusted and had to be replaced. Upon research I found this problem quite widespread and expensive, not to mention the critical safety issues involved. I do want to know that Chevrolet/gm is concerned about our safety and is addressing this problem.