Answer:
1. Remove the lower steering wheel shroud. For a 1998 Jeep Cherokee it is connected with three #2 Phillips screws underneath. 2. Put the key in the ignition, turn the ignition to ON. On the key cylender, in the middle bottom, is a rectangular button. Press it all the way in, with a small bladed standard screwdriver. 3. Pull the key cylender out. Reverse steps to reinstall.