Are you sure it happens at low speed instead of when stopped?
https://www.cybertruckownersclub.com/forum/threads/creaking-wire-y-sound-when-turning.30903/#post-562129
According to cybercricket it's your fault for using FSD outside of its design parameters.
It's also your fault for not taking over before it could turn into the pedestrian.
Better sell your truck before you get someone killed!!!!