when pushing the lock button on drivers inside door to lock all door locks, they all lock except drivers, sometimes and that is a big sometimes the driver lock will lock, lock button sometimes flips locked but only 1 out of 50 times or so. what is it a solenoid or something else...tried silicone lube no good, manually it works fine. thanks. for help.

 

Each door lock has its on solenoid incorporated into the locking device, the solenoid could be bad.

The wiring to the door locks runs to the integration relay which is behind the drivers side kick panel. The wiring between the drivers door and relay could be damaged from flexing due to door open/close action.