It's not winter, so the lock is not frozen. Have had no issues up through this weekend. Truck is garaged every night. Locks have worked fine for two years. Rear passenger door will not lock or unlock with the remote. Will lock or unlock by manually pushing or pulling the "****". Worked fine up through yesterday. This morning no workie. Leaning toward a failure of the actuator.

 

Does it lock by pressing the main button on driver's door?

 

I had this problem a couple months back with my drivers door. I pulled the fuse out and put it back in and it started working. it must have been a little loose, might want to try it and see.

 

No. The only way to lock or unlock is to do so manually.