BMS family
BMS_u023_AdapterUpdateInProgress
Charging adapter update in progress
What does the BMS_u023_AdapterUpdateInProgress alert mean?
The fast charge adapter software is being updated.
What you'll see in your Tesla
- Charging adapter update in progress
- Charging will start soon
What triggers it
The battery management system (BMS) detects that DC fast charging was attempted while the adapter software is being updated.
When it clears
The BMS detects that the condition clears.
Potential impact
Inability to DC charge until the update completes.
Affected models
Model S 2012-2020
Model X 2015-2020
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.