APS family
APS_w019_ECU_Stack_Overflow
Not Available
What does the APS_w019_ECU_Stack_Overflow alert mean?
Autopilot Processor Secondary (APS) detects software task stack overflow.
What you'll see in your Tesla
- Not Available
What triggers it
APS monitors stack usage and alerts when it exceeds limit.
When it clears
Clears after a sleep cycle / power cycle.
Potential impact
Some Autopilot features may not work as expected.
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+
Semitruck
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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.