About halfway through this winter my trunk lock stopped turning. Trunk opens fine with the release by the driver's seat but the key won't turn at all. Is there something I can spray in there to see if maybe some salt or something got in there and is causing it to stick? Could I just spray some WD-40 in there or on the key and put the key in?

Thanks

 

Not sure whats wrong with it but Im sure you could get a new one.
Try www.mitsubishiparts.net and see how much they want.Good luck.

 

I'd suggest some light oil right in the key hole.