Two problems related to brake light on have been reported for the 2005 Chevrolet Silverado. The most recently reported issues are listed below.
I went to slow to make turn and brakes went to the floor suddenly so I used emergency brake to stop. I believe all lines will need to be replaced as other look as rusty. Rust has been an issue for last 2 years with rotors needing replace then bearings in front rusted and anti-lock brake light would come on and pedal would surge. This is the worse chevy truck I ever bought as even seeing rust already in lower panels and entire frame. Looks bad for only 53474 miles.
I reported that the vehicle did not seem to want to move from a stopped position. Approximately three weeks later the problem repeated itself but with the service brake system lights coming on.