I tried to lock my doors using the key fob, didn't work. Tried locking the doors using the driver's door keyhole, didn't work. Even tried just pushing down on the lock, neither would push down.

Eventually, after fighting with it for a bit, I got the drivers side door lock to go down. Now that one works just fine. I still cannot get the passenger side door to lock. Even pushing down on the thing doesn't work. Any ideas? I thought about just squirting some WD-40 down in there to see if that might work.

2012 F-150 STX if that matters.