WHEN TRAVELING AT LOW SPEEDS THE BRAKING SYSTEM FAILS. THE BRAKE PEDAL IS NOT RESPONSIVE. YOU MUST APPLY MAXIMUM FORCE TO TRY AND STOP THE VEHICLE. I WAS PARALLEL PARKING AND HIT A MAILBOX CAUSING DAMAGE TO MY REAR RIGHT FENDER BECAUSE THE TRUCK DID NOT STOP PROPERLY. I HAD THE TRUCK CHECKED AND THEY OLD ME IT WAS A FAULTY VACCUM PUMP. THIS SEEMS TO BE AN ONGOING ISSUE WITH THIS MODEL TRUCK.