Hey all,
I have a 2019 TLX w/ advance package (v6 SH-AWD). I lost "driver 1" key fob, and I'm using the spare key for now. I bought a new key (72147-TZ3-A71) and a "Launch x431 (honda)" bc I wanted to program the key myself. I wasn't able to to program the key no matter how many times i've tried. Troubleshooting that I've done so far: -Making sure that the FCC and other numbers in the new key match the original key-trying all options in the diagnosis tool under the immobilizer menu (add 1 key, rewrite keys, all keys lost) I'm suspecting that the diagnostic tool I'm using is the issue, so I decided to get a "PairMyKey Car Key & Remote Programmer - Vehicle List C". I'll get it in a few days and give an update if it works. Going to the dealership/ locksmith is on the table, but as a last resort. Any suggestions/ recommendations for diagnostic tools?

 

I bought the PairMyKey tool thing (vehicle list c) and it worked lile magic