I posted a while ago about transmission problems I was experiencing in my 2009 LT with the 6 speed automatic. I lost first and sixth gear which made it horrible to drive and talk about crappy fuel economy, Ugh! When problem first started I had at least 6 different codes. After trying many different fixes, including new battery and tranny flush, I ended up with one code left : Shift solenoid A control circuit high. Looked into rebuilding the tranny and found out it just wasn't worth it, seeing as how it takes 8.5 hours just to change the valve body alone! So I opted for getting a brand new transmission. I was down visiting my parents on the coast so decided to have the job done there from a transmission shop that I trust. The tranny was ordered and was told it would take 5 to 7 days to arrive. Apparently GM had no transmissions anywhere and I ended up waiting over 2 weeks for tranny. I finally ended up flying home since my vacation had lasted a few weeks longer than planned. The tranny finally arrived a few days after I returned home and the job was completed in less than 1 day. I drove the 13 hours back to get my car and now have my baby back! The job cost $3000 but my car drives like a dream!