BMS family
BMS_f103_HW_BMB_Memory_Parity
Service is required
What does the BMS_f103_HW_BMB_Memory_Parity alert mean?
The battery management system (BMS) detects an internal issue with the flash memory on a battery monitoring board (BMB).
What you'll see in your Tesla
- Service is required
- Schedule service now
What triggers it
The BMS detects an issue with the random-access memory (RAM) on a BMB.
When it clears
The BMS detects that the condition clears.
Potential impact
Inability to charge, drive, or support the low voltage (LV) system
Affected models
Model S 2012-2020
Model X 2015-2020
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.