I'm not sure when you purchased your vehicle, but when I purchased my vehicle Dec 2022 I had to do that OnStar setup crap as well and just denied giving them any information. They said I wouldn't be able to get this or that but I didn't care so they didn't get that information. It took about 15 minutes with the person on the other side being a bit confused but just gave up when I said it the like 5th time.
Either way they don't need that information at any time unless you want their free trials that are almost never worth it.
I'm not sure when you purchased your vehicle, but when I purchased my vehicle Dec 2022 I had to do that OnStar setup crap as well and just denied giving them any information. They said I wouldn't be able to get this or that but I didn't care so they didn't get that information. It took about 15 minutes with the person on the other side being a bit confused but just gave up when I said it the like 5th time.
Either way they don't need that information at any time unless you want their free trials that are almost never worth it.