I have an asset I purchased (acquired) on July 1, 2021 but Form 8829 shows the "Date placed in service" date as 1/1/2015 (when LLC started). How do I change this?

During my federal check, TurboTax identified an error that I can't seem to fix.  It shows I purchased an asset on 7/1/2021 (which is correct) but then it shows the Date placed in service as 1/1/2015 which is incorrect.  I can't change the 1/1/2015 (which is when the LLC was formed) to 7/1/2021.