i have a 97 1500 sport, and it seems everytime i get a hard rain my lock stop unlocking, but they lock fine. it shows that it unlocks, but it doesnt move the pins. any ideas what could be causing this problem? please im locked out of my truck and have no idea how to get in. (cant use keys)

 

Why can't you use the keys?

Got a rear slider window? Go in that way.

 

manif i only had a slider, it would save my A**. and the key wont turn my locks on the doors for some reason.

 

Get some PB blaster, or, some other mean penetrating lubricant of your choice. Use the little tube that comes with 'em, to squirt a fair amount directly into the lock cylinder. Stick your key in there, and work it in and out to free up the tumblers, then, GENTLY rock it back and forth to loosen the lock cylinder itself. I have rescued locks that haven't worked in decades this way.