Power Door Lock Problem

[Skidiver]

I have a 2000 Silverado 4x4 truck. During the last 8 months the key fob works intermitently. I bought new key fobs and programed them easily. They still only unlock the doors about half the time. What else should I do? Thanks in advance. :fire:

[Drift2k]

Check/change door lock relay? little black box usually directly abone your gas pedal under your dash. If youve had aftermarket alarm or factory replacement or really ans work done to keyless, chances are its literally hanging right above your feet just out of sight when driving. thats what id try! good luck!