USM family
USM_a178_s2Blocked
Not Available
What does the USM_a178_s2Blocked alert mean?
Alert indicating that the sensor is blocked
What you'll see in your Tesla
- Not Available
What triggers it
When the sensor has been detected as blocked
When it clears
When the sensor is no longer blocked
Potential impact
Sensor function will be impaired, park assist features will be disabled.
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.