Old thread I know- maybe this will help someone.
I just installed the Curt 11396 on my 2018 SV. I had the same hitch (bought twice now
) on my 2015 SV.
The only difference is that the 2018 does not have the tow hook installed on the passenger side frame rail, which means no bolts to re-use to mount the hitch, and the hitch does not include them.
You'll need to visit a hardware store and buy two M12 X 1.25 bolts, 30mm long, and it would be smart to go grade 10.9 or better. Other than that, no issues with the install.