APP family
APP_w331_fsdDegradedUnavailable
Not Available
What does the APP_w331_fsdDegradedUnavailable alert mean?
Full Self-Driving (FSD) functionality is limited or unavailable.
What you'll see in your Tesla
- Not Available
What triggers it
Any sensor monitored by the Autopilot electronic control unit (ECU) reports an error.
When it clears
Clears after the Autopilot ECU reboots or when no sensor errors are detected.
Potential impact
FSD functionality may be unavailable, or may not function as expected, due to the Autopilot ECU relying on degraded sensor input.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2012-2020
Model S 2021+
Model X 2015-2020
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.