I got an appointment for Thursday. To answer some of my questions above, for future reference:
- This is warrantied for 10 years, 150k (I still wasn't able to get a loaner/rental though because they sold all their loaners)
- The bulletin was not needed, the service guy that answered the phone knew what needed to be done when I said I was having the booster pump issue
- He said a code is thrown when it happens
The biggest problem is my wife, who drives the truck regularly, is absolutely livid that GM can do this and all the supposed government overseers are allowing this to happen. I find it hard to believe that Ford, Ram, Toyota, Nissan, etc. would handle this problem any differently, but they haven't manufactured a vehicle for me yet that the brakes don't work occasionally so I can't confirm.
It would be nice to have some confidence that this wont happen after its repaired, or at high speed. But then she read about the 2020 Equinox. And then the Volt/Bolt fiasco...