I RECENTLY NOTICED THAT WHEN I OPEN THE CAR DOOR TO GET INTO THE CAR (WITH THE ENGINE OFF), THE BRAKE ASSIST PRIMES FOR QUITE A BIT (> 30 SECONDS). THEN I START MY CAR, I NOTICE THAT THE SOUND CAN BE HEARD PRIMING THE BRAKE (VACUUM?) EVERY 15 SECONDS OR SO AND LASTING ABOUT 3-5 SECONDS. IT PRIMES EVERY TIME I RELEASE THE BRAKE PEDAL. THE DEALER SAID THAT THE BRAKE ACTUATOR IS BAD AND WILL NEED TO BE REPLACE OR THE CAR WILL NOT SOME IN DRIVING CONDITIONS.