I am new to this forum, I currently have two Grand Prix's, both are 2001 models. One has a 3.1 liter engine, and the other has a 3.8 liter engine. I am trying to make one good car out of the two. I had just bought the one with a 3.8 engine that was rolled onto its side. It was running good and we drove it some, but the security light kept flashing and now it will not start. I found that it has a pass key III system, but was wondering if a person can bypass the system and how is it done? I had worked as a mechanic for quit awhile now, but I am not familiar with the pass key system. Any ideas will be of help.