BRAKE FAILURE DUE TO LOSS OF BRAKE PRESSURE. AS I'M DRIVING OVER AN UNEVEN ROUGH SURFACE, I TRIED BRAKING AND LOSS BRAKE PRESSURE AS I HIT A BUMP. IT'S HAPPENED MULTIPLE TIMES IN THE PAST AS FAR BACK AS 12/2014. THE VEHICLE WAS TAKEN TO 2 DIFFERENT AREA NISSAN DEALERS. PRETTY COSTLY DIAGNOSTIC YIELDED NO PERMANENT SOLUTION, BECAUSE IT'S BACK AGAIN. I CALLED NISSAN CONSUMER LINE AND THEY SUGGESTED GOING BACK TO ANOTHER DEALERSHIP. PLEASE CAN SOMEONE VALUE THE TAX PAYERS LIVES AND DO SOMETHING BEFORE LIVES ARE LOST. PLEASE