This Code Alarm CA420 system uses replacement remote: ELVATCC, CATX420
Here’s how you program your remote:
1) Turn the ignition switch to ON.
2) Press the valet button 3 times.
3) Press and hold the button on the remote for 3 seconds, or wait until the parking lights flashes.
4) If you have another remote just go back to step 3 to program.
If you can’t find your valet switch click here.