If you want to keep the lock handle and trim on a door but need to have the lock changed you can just replace the cylinder inside a pin and tumbler lock.
How to remove the delay in door lock.
Remove the casing bolts.
A bar or bolt that goes into the striker plate of the door to secure or lock it.
Cylinder locks are extremely common but how to remove the cylinder is not quite as obvious as a knob door lock.
Get the new relay out of its package.
Turning the delayed door lock feature on and off takes only a few steps.
Once this is removed a locksmith can re key this for you.
Go to the breaker panel on the wall next to the brake pedal.
When the delayed door lock feature is on and you press the lock button when one of the doors is open the locks will wait until all the doors are closed delay for a few seconds and then lock.
Removing a cylinder door lock.
Find the door lock relay.
Removing the cylinder from a door lock is a simple way of keeping the lock handle that you have while changing the cylinder lock inside of it.
Remove the latch plate.
Use a hammer and center punch to drive out the hinge pins if they are accessible.
Install the new door lock relay.
How to remove cylinder door locks.
Remove the old door lock relay.
With a pair of needle nose pliers pull out the relay.
Step 2 take the door off its hinges.
By removing these screws you may be able to remove the lock and open the door.
Once the door is no longer connected to the frame you ll be able to slip it out of the opening and remove the lock from the interior side.