MyTeslaMate

Tesla Alert Codes Explained

Every Tesla reports internal alert codes (like BMS_a117) when something needs attention. Search the dictionary below to find what an alert means and what to do about it. MyTeslaMate logs them automatically: hosted TeslaMate with no server to run.

Signal Name Description Condition Impact Important
Drive Inverter Slave Warning: Unused warning 66
-
No
Drive Inverter Slave Warning: Unused warning 65
-
No
Drive Inverter Slave Warning: Torque Monitor Intervention
-
No
Drive Inverter Slave Warning: System graceful power off triggered
-
No
Drive Inverter Slave Warning: System limp mode triggered
-
No
Drive Inverter Slave Warning: Heatsink sensor bad
-
No
Drive Inverter Slave Warning: Heatsink under temperature
-
No
Drive Inverter Slave Warning: Heatsink over temperature
-
No
Drive Inverter Slave Warning: Ambient sensor bad
-
No
Drive Inverter Slave Warning: Ambient under temperature
-
No
Drive Inverter Slave Warning: Ambient over temperature
-
No
Drive Inverter Slave Warning: Unused alert 54
-
No
Drive Inverter Slave Warning: Externally requested warning
-
No
Drive Inverter Slave Warning: Rotor braze failure detected
-
No
Drive Inverter Slave Warning: Battery overcurrent detected in software
-
No
Drive Inverter Slave Warning: No Stator sensor available
-
No
Drive Inverter Slave Warning: Stator sensor difference
-
No
Drive Inverter Slave Warning: Stator sensor 2 bad
-
No
Drive Inverter Slave Warning: Stator sensor 1 bad
-
No
Drive Inverter Slave Warning: Stator over temperature
-
No