Reviving a very old thread here in the hopes that this might help someone someday. I tore the seat apart and it turns out there are 4 cables originating from the lever on the top of the seat. When the lever is pulled, the first 2 cables allow the seat to fold forward, and as the seat completely folds down, the second 2 cables are pulled tight to release the rear floor latches. MY issue was that the the small piece of metal that connected driver side latch to the cable broke in two. Unfortunately, it looks like the only fix will be to get the part from the dealership, which I am unsure of whether they sell just the cable or if they will make be replace the whole latch like overlander. In the meantime, my temporary fix was to simply release the latch by hand and unbolt/remove it from the seat altogether.
And yes, I did procrastinate on this issue for almost a full two years [emoji106]