UI family
UI_a212_AEBSFaulted
Automatic Emergency Braking is unavailable
What does the UI_a212_AEBSFaulted alert mean?
Active Safety Automatic Emergency Braking System (AEBS) feature unavailable
What you'll see in your Tesla
- Automatic Emergency Braking is unavailable
- Not Available
What triggers it
AEBS feature enabled in the region and unavailable.
When it clears
AEBS feature functions becomes available.
Potential impact
Potential lack of AEBS active safety feature
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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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.