New 2Way Code Alarm CATXMLC Keyless Starter Remote H5OTR35 with programming instructions and battery included free. Works on these Code Alarm systems: CA1550, CA1551, CA1552, CA1553, CA1BTW, CA1BTW5, CA4552, CA4553, CA4554, CA4555, CA6550, CA6551, CA6552 and CA6553. Programming Procedure: 1. Turn the ignition ON.2. Press and hold the valet/override button.3. Within 10 seconds the system will chirp/flash the parking lights (3) three times, release the button.4. Press Button 1 of each transmitter you wish to program. The system will respond with 1 chirp for each accepted transmitter (up to 4).5. Turn the Ignition OFF to exit programming. The system will also exit programming after 15 seconds of inactivity. Note: This system has 1 button programming which programs all channels of the system.