There is a long discussion about this problem here
As mentioned in the opening part of that thread, you can fix this by replacing the PDIM with a model from a Camaro of the same era.
I did so last month, but the kit I bought via Amazon was close to $200. Someone recently managed to find a larger list of part numbers that should work, so perhaps you can source one for a cheaper price.
Sent from my SM-G935V using Tapatalk