I have my Buick century 2003 and the driver's door lock has dropped down into the door therefore i am unable to lock or unlock the door. so I don't know what to do, anyone suggest me a cheaper way to fix this issue. Thanks in advance.
Either way you look at it you have to take the door panel off to see what went wrong.
There are plastic clips that hold the linkage rods in place they may of broken or popped off and would need to be repaired or replaced.
A visual inspection of the locking system with the door panel off can confirm the problem and give you plan to repair the malfunction properly.