luckily i am a gm tech and have access to all of gm's technical bulletins on si2000. i reprogrammed my pcm for every bulletin. if you want the bulletin# i will post it tomorrow as i am home now. i know the customer complaint is for a harsh downshift.so if you want the pcm programmed just tell the dealer you have a harsh downshift from 2nd to 1st gear and you know there is a reprogram for the concern.
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