I was involved in (2) accidents from this issue. After the second one I received a letter saying to bring my truck in for repair. Sure enough (I have paper work to prove) the dealer determined my booster was operating below the pressure threshold and was replaced at no cost by the dealer.
gm then played shady phone games with me lying to me saying ESIS, who “handles gm claims” was a 3rd party with no ties to gm only to later find out they work for gm. Either way they sent an inspector out who inspected every aspect of my truck for about 7 hours, they were trying to come back with proof that when I rear ended someone the brake was not being pressed. They can see if the air bag almost goes off. The inspection came back with nothing and Esis eventually offered me a laughable “settlement” which was “not an admission of guilt however an act of good faith by gm to repair my vehicle.”
Needless to say this has been going on for over a year, I’m not sure my truck is safe to drive and I do 110 miles a day. This whole thing has caused me severe stress and anxiety and I hope none of you have to deal with this. Luckily no one was seriously injured, but one party involved had a neck injury. Gm is a disgrace.