Awesome. That's what I was doing. It's set back to the original now. Thanks for your help. It's a TBSS and I know others have had problems with the transmissions. I don't want the tune to be blamed for the crappy transmission. If they can't see that it was ever tuned, that is great.

Oh really? No trace? Sweet. I don't want the dealer blaming the tune for GM's shitty transmissions.

Do you think the dealer will give me any crap about the flashing of the ecm? Is there anything they can do about it?

wouldn't consider myself lucky, but didn't get any error messages. Said it completed and told me to unplug the tuner.

I'm pretty sure that's just moreso a safety precaution regarding the power circulation through the vehicle (minimizing chance of surge or hiccups). If the tune completed successfully, you probably shouldn't worry.

Thanks. Just kinda freaked out. Transmission went today and I'm taking it to the ...

I just restored my original tune and realized that the door wasn't shut all the way. Everything seemed to go fine, but I read in the manual that you should keep the doors shut during the tune. Could this be a problem?