What is the procedure to replace the ignition switch on a 2000 dodge caravan?

The top and bottom plastic steering column covers need to be removed with a Torx screwdriver. The tilt lever, if it exists, must be unscrewed to remove them. Then, remove the tamper-proof Torx screws to remove the entire plastic ignition switch assembly, including key cylinder. The metal cylinder part can now be removed from the ignition switch. If you need to remove the internal keyed part from the cylinder, the key must be in a specific position, and a hammer must be used at a specific spot. Most locksmiths have access to this specific procedure, and/or will do it for $10 or so. Otherwise you can simply replace the cylinder, but that means the key will be different than the doors.