Gt1948
2017 S FSD AP 3.0 MCU 1
Mobile tech was here last week and mentioned something about “group 1” when I asked about upgrade.My car is going in this morning. I made an unrelated appointment for the half-shaft shudder and when I got the repair estimate, the AP 3 retrofit was added as a work order item with a note that my car was in "Group 1" (whatever that means). Apparently the swap involves replacing 4 bolts/nuts and the CPU