change battery on 1996 Cadillac Eldorado

I need to replace my battery I was told this can cause the computer to loose its codes is this true

by in Pulaski, TN on January 17, 2011
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1 answer
ANSWER by , August 09, 2011
Yes you will loose them if their is any ... But if you do have "hard codes " they will return so you can deal with them ... You will have a engine light on ... So not to worry :)