When can i receive an updated Onstar module?

I have tried using the chat function in support and have been transferred several times with the same line, "due to the nature of your inquiry i am transferring you to another department who can better assist". The next person comes on and cannot help. This is a revolving door. The frustration of no assistance in GM and even worse with the information that we receive from the dealerships has gotten out of hand. There is absolutely no accountability in this failed module. How can this have been happening for the last couple of years and there aren't any in stock across this entire country? The reliability issues is causing more than problems than just money and that is a big part of it. Time and sometimes the lack of a loaner due to a manufacturing issue. In my case, the check engine light is on and was told due to the module causing communication issues. Who in this world wants to ride around with a check engine light on with a vehicle that has a warranty?