Climb in the cargo area pull the plastic cover that is over the lacth back (from the top, just under the rear window) as far as you can & reach down to the latch. you can manipulate the latch open from here. I've had to do it several times & it's a pain, but not all that difficult. once you get it open remove the trim & you will either find the plastic contact point broken or that it just needs adjusting. it can work it's self down over time & stop working. Plastic & metal together isn't the best design.