How much is a full tune-up on a Chevy Impala 2005

What is your question?

After you get the car started the dash lights will go either very dim or completely out

What makes this problem better or worse?

Nothing really sometimes they will work if you mess with the knob for the most of it they won't work

How long has your 2005 Chevrolet Impala had this problem?

4 months