Which Tool to program 2026 Toyota GR86/Subaru BRZ all smart keys lost?
No Reset Immobilizer on these system ( ECU, I.D. Box and Smart box ) replacement if all lost smart.
Smart key can be unlocked and reregister page6 (00 80 00 00) for both Toyota or Subaru.
Page 4 is your manufacturer/model Subaru F3F3 Toyota F4F4 So they will not cross over.
Here is the location of smart box easy to remove. Smart box and board target eeprom and location.






