BMS family
BMS_a175_Charge_Failure_External
Error detected while charging at this station
What does the BMS_a175_Charge_Failure_External alert mean?
Battery management system (BMS) detects a condition while charging likely caused by the EVSE / external charging equipment. The BMS stops charging and prevents retries while the charging equipment is connected.
What you'll see in your Tesla
- Error detected while charging at this station
- Try different charging station or location
What triggers it
The BMS detects an issue during charging likely caused by the EVSE / external charging equipment
When it clears
The charge cable is disconnected
Potential impact
The vehicle will not charge while this alert is set
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Track your Tesla's alerts automatically
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.