There is air in your brake system. Have it checked ASAP. You have a fluid leak somewhere.
The Parking Brake
Air in the brake lines
brake light switch is mounted by the brake pedel remove lower panel above brake pedel and then you will see the switch should be able to turn the switch to replace
first unbolt the brake fluid resovor then unbolt the rod that goes threw the fire wall to the brake pedel, it unbolts from the pedel then unbolt the booster from the fire wall and there ya go
the brake pedel pushes a switch right on top of the pedel lever it can come loose or go bad. check fuses first
soft peddle feel maybe from a damaged brake master cylinder. this pressurizes the peddle, and if there is a leak in the cylinder it might feel soft or flop all the way to the floor.
brek pads
you just put your RIGHT foot on the brake pedel and slowly and gradually press it in
above brake pedel behind fuse block
Air trapped in the brake lines. Bleed your brakes and that will solve the problem.
Air in the brake system. You need to bleed the air out of the system.
Air in the system. -Get it checked by a pro, ASAP.