STO family
STO_a049_npCurrSenOffSubInit
Not Available
What does the STO_a049_npCurrSenOffSubInit alert mean?
Steering Torque Overlay (STO) assist halted due to Primary current sensor offset startup failure.
What you'll see in your Tesla
- Not Available
What triggers it
Primary Internal: sub current sensor offsetfailure detected on startup for 250ms
When it clears
System Reset
Potential impact
Steering Assist reduced
Affected models
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.