OP. There are lemon laws for people like you. Personally, I love my '16. 55K miles and not one issue... except for the bimbo on her cell phone that hit me.... Hope things work out for you.
Why not just go to your local Chevy dealer? They should have an exact match which you can find your color code on your sticker. Or, you can search here: https://www.genuinegmparts.com/collision-auto-body-parts/auto-paint-touch-up.
If I was to buy a duplicolor, I'd do a test swatch and see for myself before painting any parts.
I guess you need to change your signature now.... I miss St. Pete as we moved from Pass-a-grille in 2011. I miss the weather, beach side food/drink/music and when the tourists leave.
OP: I have the 12588, which is a 22" catback. The sound is wonderful but is more quiet than the 18" you are looking at. I bought the muffler through Amazon and had my local shop put it on. Muffler, tips, their piping..... Less than $400. One of the best mods I have done.
I would suspect some rubbing. I wanted to see a setup with stock 18's like I have. This setup looks good. With that said, 285/70R-18 may be the ticket for me.
Why didn't they put a "truck" front end on it? This vehicle might make a good auto parts delivery truck. Towing capacity? Hauling capacity? Thought so.
"Brighter than I wanted"..... They are not on all the time I hope? Is that just a personal preference? Just ordered some 12" LED strips from Amazon. Hope they aren't too bright also. Reviews stated they were just right. I'll put one at each door and connect them to the dome light circuit.
12" LED lights