This keyless remote programming instructions work for new 4B cars remote with part # 8S4Z-15K601-A, 8S4T-15K601-AA, 2S4T-15K601-AB, 2S4Z-15K601-AA and FCC id CWTWB1U345, CWTWB1U331.
Follow steps to program the remote:
1. Insert the keys in the ignition and turn the ignition switch from OFF to RUN, 4 times within 3 seconds, ending in OFF. The vehicle will remain in programming mode for 20 seconds indicated by the LED light in the instrument panel being illuminated continuously.
2. Press ANY button on a keyless entry remote transmitter. When the signal from the remote is accepted the LED will flash. NOTE: When the first keyless entry remote transmitter is programmed, all existing keyless entry remote transmitters are erased.
3. Repeat the previous step for each transmitter that will operate the vehicle after a 2 second delay from the LED flash of the previous remote.
4. Turn the ignition switch to the ON position or wait until 20 seconds after step 1, to exit program mode.