I don't know where you're located but 6.0.1 has not been released for the Moto X Pure.My Moto X Pure received 6.0.1 last year.
I received the 6.0.1 update by performing these steps:
Power Off phone
Remove SIM card
Power On and connect to Wi-Fi
Check for update
Install update and allow to reboot.
Power Off phone
Put SIM card back
Power On.