APS family
APS_w255_bootHealth
Not Available
What does the APS_w255_bootHealth alert mean?
APS electronic control unit (ECU) encountered an unusual error during boot process.
What you'll see in your Tesla
- Not Available
What triggers it
Error occurred during APS boot process.
When it clears
Clears automatically.
Potential impact
Autopilot may be unavailable.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Semitruck
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.