Soft or Spongy Brake Pedal

Do not normalize a sudden change

Drivers get used to how their own vehicle's pedal normally feels. A meaningful change is worth investigating.

Possible categories of cause

Air in the hydraulic system, fluid loss, component wear or hydraulic faults are among the possibilities. Diagnosis requires inspection rather than a single assumed fix.

Reduced braking ability is urgent

If the vehicle does not stop normally, avoid driving it and seek help from the current location.