I recently took my wife's Enclave for preventive maintenance and they said the brakes needed flushing. I'm 58 yrs old and I've never heard of having to do this. I've always thought brakes were a closed system and if anything you only had to add a little when your brakes wear. If this IS a thing, then I'm assuming my 04 Jeep needs it also. I thought it was B.S., but then thought I would ask you guys on this forum. What say ye?