I think it got low once+1 FL,FR,RR,RL Is correct as he stated, its not furthest away as it is on older cars. I believe when yuo're bleeding you're not supposed to touch the brake pedal to the floor. Right after doing it did you pump the brakes until yuo felt a little tension. Was you brake fluid ever low? Did yuo by any chance mess w/ the piston on the caliper? you can take it off the car and test if its compressing and decompressing. There was/is no reason for you bleeding the brakes if you didnt disconnect them. good luck, when you think you got it figured out, drive safely and slowly.