TAS family
TAS_a201_low12VBattery
Not Available
What does the TAS_a201_low12VBattery alert mean?
The Tesla Air Suspension (TAS) electronic control unit (ECU) has received a vehicle controller request to shed electrical loads and enter low power mode.
What you'll see in your Tesla
- Not Available
What triggers it
The TAS ECU receives a request to shed electrical loads.
When it clears
The TAS ECU detects that there is no longer a request to shed electrical loads.
Potential impact
Air suspension leveling may not operate as expected.
Affected models
Cybertruck
Model 3 2024+
Model S 2012-2020
Model S 2021+
Model X 2015-2020
Model X 2021+
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.