EFUSE family
EFUSE_w042_HighStackUsage
Not Available
What does the EFUSE_w042_HighStackUsage alert mean?
High stack memory usage was detected
What you'll see in your Tesla
- Not Available
What triggers it
Stack usage exceeds 80% for any task.
When it clears
Cleared at startup.
Potential impact
Stack overflow can occur if there is not enough stack space.
Affected models
Model S 2012-2020
Model X 2015-2020
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.