If you release the switch, the brake disengages ... or if there was something trapped under the brake pedal. The parking ...

The brake pedal may collapse during braking ... the car can come to a controlled stop by pulling up and holding the parking brake switch. When emergency braking is needed, however, it’s hard ...

"A brake line leak may cause a longer-than-expected brake pedal travel and result in a reduction in the rate of deceleration. If there is a rapid loss of brake fluid or the brake fluid is ...