Right you are. I just checked the owners manual and it said to change the fluid every 50,000 miles - IF driven under the described harsh conditions. Otherwise, the fluid would be good for the life of the vehicle. As you say - my DIC shows the fluid life @ 100%.
I had the 100,000 mile figure in mind from reading the scheduled manitenance list @ My GM Link
www.mygmlink.com It merely said to change the fluid and filter every 100,000 miles. No if, and or buts...
Out of curosity - I stopped at the local Chevy dealership on the way home and casually asked about transmission fluid changes. They said 1) they drop the pan - they don't cycle the fluid for a complete flush and 2) Why do you want to change it - are you having problems? The service manager went on to say that he was from the old school - if you aren't having any problems - then leave well enough alone and don't touch it.
I know some folks that have their fluid changed every 20K miles (non-aurora) - they swear it extends the life of the transmission and avoids any problems. I thought I'd emulate them and try to follow the recommended 100K change even thought the computer shows fulid life @ 100%!
Based upon the facts as presented - I guess I'll save a few dollars for the time being - and defer any maintenance.
Thanks for the feedback!