My car has a seized lock assembly in the trunk. How can I fix this and still use my same key? It looks like it might be rusted but I don't know from what or how. Thanks.

The same thing happened to me. Try some CRC or WD40 and work the lock real easy and it should free up. Then spray some white lithium grease in the lock.

Mike

Look for some graphite key lock stuff.
It worked for me back in my San Fran days.