One problem related to body has been reported for the 2003 Chevrolet Silverado. The most recently reported issues are listed below.
Brake lines, gas line, transmission fluid lines all rusted/corroded beginning at under 50,000 miles. * had near accidents as the brake lines blew while driving on a highway and was decelerating in an attempt to come to a stop. . Pedal went to the floor, I continued on (foot off the gas) until the truck slowed down enough on it's own, shifted into low gear & was able to come to a stop and get towed. * shortly after brake line incident, the same thing with the gas line, rusted/corroded and leaked gasoline when ignition was on and pump was running. . . Towed * a few ,months later, I was parking the truck and fluid started spewing from under the truck - after close examination I determined it was transmission fluid, the lines had rusted/corroded - again,towed. * rear bumper rotted out completely before hitting 35,000 miles- I had it replaced, now the wheels and side quarter panels and everything in between are also rotting out. * currently the dash lights/panel will intermittently begin to flash - the whole dash goes blank, lights off, then they come back on, while driving! * mechanic recently told me after state inspection, that the frame is the next thing to go, it is rusting out more than expected for a vehicle of it's age/low mileage. Personally, I feel that inferior products were used when the truck was manufactured only because I have another Chevrolet product with twice the mileage and 6 years older with barely any rust/rot/corrosion.