Can anyone give me a idea of what's going on with my 1999 C/K 1500 Suburan? The "Brake" light turns on when reducing speed and the brake peedle becomes stiff almost not stopping the vehicle. The "Brake" light will turn off when the parking brake is engaged then released - or - if you pump the brake peedle. I'm thinking it may be a ABS problem... This problem is doesn not happen all the time and the ABS light does not come on.