OK. Since you brought it up again.
1. I asked "Isn't that for 2019+?" in response to the "they can update your build sheet for the higher rating." I didn't know for sure if it applied to earlier models, like the OP's 2017.
2. It wasn't yet established in this thread that it didn't apply to the 2017. Look at the order of posts.
3. 3.517 is the final drive ratio for 3.2L vehicles from 2014 thru 2022. I was just posting what was asked by the OP if he had what was needed on the build sheet. It applies to all MY for towing. It only applies to 2019+ for the dealer upgrade (see next point).
5. It turns out that 2017 might have everything needed, but still can't be upgraded by the dealer. Without further proof, neither can a 2018 for that matter. Well, a lot of "maybe" on that. But the point was if the build sheet has all of that stuff, it has the basics that the tow package has. Of course, less the receiver and programming to make it so.
4. It's obvious the OP didn't have a 2.0L Turbo, so it falls into my "irrelevant" category. Again, trashed if I do, trashed if I don't.
So, thanks. I guess. Not sure of the need for either of our posts.