Easy way to tell. Does it look like the picture below, including little blind spot mirror i placed an arrow at? If yes, then you dont have tow mirrors and dont have a tow package, although you will most likely still have the hitch
For instance I don't have the towing package, but do have a trailer brake controller and all the other items (hitch, wiring, etc).
View attachment 9247
Tow mirrors look like this
View attachment 9251
You can also access your build shield here:
https://www.dodge.com/webselfservice/BuildSheetServlet?vin=???
Just put your VIN number in where I put the ???