USM family
USM_a227_s1InitError
Not Available
What does the USM_a227_s1InitError alert mean?
Alert indicating that there has been an init issue related to the sensor
What you'll see in your Tesla
- Not Available
What triggers it
When any error bit is set by the sensor
When it clears
When the error condition is no longer present
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.