Car Key Lock Repair If you cannot open the door of your car using your car keys, you may need to find an auto locksmith that is specialized in car key lock repair. They will be able to repair or replace your locks swiftly and at a reasonable cost. Lubricating the keyhole on your lock can help get it out of jamming. This will help prevent future jams. In the meantime you can unlock the lock by using a thin metal object. You must be careful not to damage the lock. Transponder keys ...