STO family
STO_a114_vehSpeedInvalid
Not Available
What does the STO_a114_vehSpeedInvalid alert mean?
CAN messages from the vehicle speed ECU have an invalid data value, indicating an error in data integrity has been detected.
What you'll see in your Tesla
- Not Available
What triggers it
For 1 or more seconds, CAN message frames from the vehicle speed ECU have an invalid data value
When it clears
CAN messages received as expected
Potential impact
Steering assist may be affected, since the vehicle speed to Steering Torque Overlay (STO) interface is interrupted
Affected models
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.