earlier today when i was driving through my neighboor hood i noticed that my parking brake light came on after i had already left the house so i tried pulling the brake release and that didnt do anything. for a long time my brakes have been pretty bad (ive had to push the peddle down at least half way before it started comming to a stop). so now i im wondering if its started to use the parking brake as a backup brake since my regular ones suck so bad or sumthin. btw i just washed my truck and the rims very good before this happened so i dont know if i got water somewhere it shouldnt be or sumthin. but it was still happening a couple hours after i washed it so i figured that couldnt be it. any ideas on what might be the problem?