Secret Warranty???

Has anyone heard of GM issueing a "secret warranty" for a transmission problem in the 2001 Impala?? It's called a technical bullitin I think. I've heard that sometimes they do this instead of recalling it. They have been having a lot of problems with the transmission.

dont know that one but check out lower intake gasket secret warranty. just had mine done at dealer for free heard same thing technical bulliten