My '16 as well.

 

My passenger door panel. No RPO code sticker

 

sounds like a good question for the dealer that sold it to you.

 

You can try taking the VIN to a dealer to see if Chevy can help you out. Seems to me the only reason to remove it is if it isn't the original door.

 

If you bought that new, you should have been given a build sheet. Maybe the dealer took it off and you never thought about it. I always tell them I want it. I keep looking for the one for this van, but I think it might have been lost when some possessions of mine where suddenly claimed by someone else. There are places you can email that will get that information out of your vin. In a way it's irrelevant for these vans. There are only so many options and configurations.

 

I'll need to take a ride up to my local dealer. Service has provided me with a copy of the rpo code list before. Was trying to avoid that.