NHTSA Complaint #10970667 — 2012 CHEVROLET EXPRESS

I MANAGE A FLEET OF 53 SCHOOL BUSES, MODEL YEARS RANGING FROM 2008 TO 2015. I HAVE NOTICED A TREND WITH THE HYDRO BOOSTERS AND MASTER CYLINDERS, THEY TEND TO LEAK INTERNALLY ON THESE GM VEHICLES SOME HAVE BEGUN TO LEAK AS EARLY AS 30,000 MILES. I EXPECT TO HAVE TO REPLACE ALL OF THESE COMPONENTS, ON EVERY BUS IN THE NEAR FUTURE. AS THE FLEET AGES THE TREND IS GETTING INCREASINGLY WORSE. I BELIEVE THIS IS A DANGEROUS SITUATION BECAUSE I AM VIGILANT WITH KEEPING UP ON THIS ISSUE, HOWEVER I AM NOT SURE THAT THE GENERAL PUBLIC WILL HAVE THE SAME UNDERSTANDING ABOUT THE DANGER OF THIS DESIGN FLAW. I HAVE HAD BUSES COME IN BLEEDING BRAKE FLUID OR HYDRAULIC FLUID.