[ZL1power69]

I had this problem also and has been covered on this site before. Your actuator's plastic clip is most likely broken. If your interior panel has the screws in place on each end holding it in place, its impossible to remove it from the inside without destroying it. There is a small access hole under the carpeted insert that you can use to access the latch. Once you get it open, remove both tail gate panels. The clip itself is discontinued and replacing it with a used one is just asking for the same problem again. Go to the dealer and purchase the updated actuator for $70. It has a revised clip that should not break off. You could also custom fab something on your own.