FWIW. There are also 2 on Android (Pixel 8 Pro), and both must be listed and working for everything to work properly. As explained slightly differently above, one is for mobile key, the other for infotainment (this is how Customer Service explained it to me, and I've been walked through the unpairing reprocess by them probably 4 times now, each time getting told something quirkily different about the sequence it should be done in in order to get mobile key to work properly (which it still doesn't even though they insist it should).
When I first grasped that a Lucid requires 2 separate Bluetooth pairings, I was quite surprised as I have never seen any other Bluetooth device require that, although this is, after all, an entire car, not just a BT speaker or set of earbuds.
I still thought it quite odd and unique - something that I feel like nobody would expect (and that every Lucid owner should be carefully and emphatically told during orientation), so I asked around; so far I haven't found any other device (or car with mobile key) that requires this, and concluded - until I learn otherwise - that it's unique to Lucid.
Considering the extent of difficulties just about everyone has with mobile key - and how often Customer Service walks people through unpairing and repairing of both, I can't help but question whether this approach is really necessary. I feel like things would work better if it wasn't like that; it certainly would be easier to unpair and repair when things go haywire if there was only one pairing to begin with.