2013 Buick Enclave

All I can say is the same old mantra: Read the Owner's Manual. If it is towable, there is a good chance the instructions are contained therein.
If it is not towable, the book will likely say so.
If you don't have the book, it may be available for free download.
If not, it may be available from the dealer at a small charge, or available from eBay.
If the book is totally unavailable, check the Remco website. They might have the information you need.
Google is your friend.
Good luck.