Have a 2011 Insigina, no issues with brakes, went to drive it this morning, brake pedal went all the way to the floor, and made a "SHHH" sound, after pumping it (each time the travel got less and less ) they did go firmer but then were the same after 30 seconds, I have check pipes and all seem OK, fluid level is fine, and is not dropped.
Any ideas ?