This happened to me to.
I had a shop do mine, by I watched the guy for a while do it.
Down by your drivers side feet, where that fuel pump cut off, remove that plastic housing down there. First see if the cable fell of the track type thing.
For me I forget the what exactly by something broke apart causing the cable not to be pulled, and it had to be epoxyed back together.
Also on a side note under your hood, buy some PB blaster and lubricate the hatch assembly every 6 months to keep it in good working condition.
Hope that helps.
