WHILE TRAVELING AT 35 MPH WITH MY 3 CHILDREN. I CAME TO A RED LIGHT AND ATTEMPTED TO STOP, BUT THE BRAKE PEDAL WAS SO STIFF THAT I WAS UNABLE TO STOP IN TIME. LUCKILY THERE WERE NO VEHICLES IN THE INTERSECTION AS I COULD NOT BRAKE AND HAD TO TAKE THE RED LIGHT. I CAME TO A HALT AS I RAN INTO A PARKING LOT MEDIAN. I TOOK IT TO LAKE CHEVROLET AND FOUND THAT I WAS A 105 MILES OUT OF THE EXTENDED WARRANTY. NOW I AM LEFT WITH A $1000+ BILL THAT COULD HAVE BEEN AVOIDED IF GM WOULD NOTIFY CUSTOMERS OF FAULTY BRAKE BOOSTER. THIS INCIDENT COULD HAVE BEEN WORSE. I HAD JUST EXITED THE FREEWAY TRAVELING AT SPEEDS OF 65 MPH+ I NO LONGER FEEL SAFE IN VEHICLE. I HAVE READ TO MANY COMPLAINS ABOUT THIS SAME ISSUE AND IT KEEPS RETURNING EVEN AFTER REPAIRS.