APS family
APS_w166_TurboA_SMSLockStepErr
Not Available
What does the APS_w166_TurboA_SMSLockStepErr alert mean?
The Autopilot (AP) electronic control unit (ECU) detects that the Turbo A main processor encounters a lockstep error in the safety management subsystem (SMS).
What you'll see in your Tesla
- Not Available
What triggers it
The AP ECU detects a lockstep error on the Turbo A main processor in the SMS.
When it clears
Clears when the lockup error is no longer detected on the Turbo A main processor in the SMS.
Potential impact
All AP features will be unavailable.
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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