Works On: CA610, CA611, CA210.Battery included.You will need to use the valet switch (programming/override button) to perform the programming procedure. It is possible to perform programming without the valet switch but you would need to access the receiver under the dash. We have a troubleshooting procedure for how to do this that we can provide upon request. Programming Procedure: 1) Enter the vehicle, and turn the ignition switch to the ON position. 2) Press and release the programming button switch 3 times. 3) The dash mounted LED will flash 1 time, and the horn/siren will sound 1 time, indicating that the system is ready to accept programming of channel 1 which is arm/lock. 4) Press and hold the lock icon button of the transmitter you wish to program for 4 seconds or until a long chirp is heard from the horn/siren. Repeat step 4 for any additional transmitter you wish to program. 5) Press and release the programming button switch 1 time to advance to channel 2. The dash mounted LED will flash 2 times and the horn/siren will sound 2 times, indicating that the system is ready to accept programming for channel 2 which is disarm/unlock. 6) Press and hold the unlock icon button of the transmitter you wish to program for 4 seconds or until a long chirp is heard from the horn/siren. Repeat step 6 for any additional transmitter you wish to program. 7) Press and release the programming button switch 1 time to advance to channel 3. The dash mounted LED will flash 3 times and the horn/siren will sound 3 times, indicating that the system is ready to accept programming for channel 3 which is trunk release/remote start. 8) Press and hold the trunk/key icon button of the transmitter you wish to program for 4 seconds or until a long flash from the parking lights. Repeat step 8 for any additional transmitter you wish to program. 9) Press and release the programming button switch 1 time to advance to channel 3. The dash mounted LED will flash 4 times and the horn/siren will sound 4 times, indicating that the system is ready to accept programming for channel 4 which is an optional device. 10) Press and hold the option button of the transmitter you wish to program for 4 seconds or until a long flash from the parking lights. Repeat step 10 for any additional transmitter you wish to program.