Review on ACDelco 12669488 Original Equipment Vacuum by Robert Prix

Amazing quality and OEM for my 2017 SUBURBAN. I had the same problem with the brakes. GM will not honor the warranty because my car has over 72,000 miles. I installed it myself, which is a bit fiddly. I would recommend an air ratchet to loosen the 4 bolts holding it in place. Very little space to work. It took me about 3 hours to do this. After installation I tested it and everything is fine. Went to the dealer for a free brake software update, no problems since.