If your locks have been replaced at some point in time and you dont want to have multiple keys to unlock your one key fits all car, Here is how to fix that problem. Well use the door lock here but the same procedure applies to the rear hatch lock as well. First you need to remove the interior door panel to gain access to the inside of the door handle. Remove the lock rod attatched to the door lock.Then remove the circular spring clip that holds the lock in the handle.
Once you have the lock removed from the door remove the c-clip on the back of the lock and remove the lock rod bracket. Then remove the cap by using a small tipped screwdriver and prying up on the crush points.
Once you have the cap off insert your key into the lock and pull the cylinder out.
Now at this point you can spray the cylinder liberally with WD40 and clean it then give it a light coating of grease or in the case you need to rekey the lock, Slowly pull the key out of the cylinder while holding the locking keyway pieces in place.(not sure of the exact name of these items). Then you can remove the keyway pieces and the springs. Then comes the time consuming part, Insert one of the keyways into the first slot and insert your key. The idea is to find a keyway that will sit flush with the cylinder on both sides.
After about 20 minutes i got a little bit frustrated and got the keyways close to flush, then took a file and filed them down flush with the cylinder. This is ok because as you remove the key the keyways will pop up and lock the cylinder in place when put back togeather.
Once you are happy with the key insetred in the cylinder and the cylinder inserted in the housing, it turns freely, and with the key removed it locks securly in the housing, Its time to put it all back togeather again.
Reinsert it back into the door the oppisite way you took it out.
The lock for the hatch looks slightly diffrent but the procedure for rekeying the lock is the same.
It took me about 2 hours to rekey both door locks and the hatch lock and reinstall them.
