EPAS3S family
EPAS3S_a154_assistTorqueDisabled
Not Available
What does the EPAS3S_a154_assistTorqueDisabled alert mean?
Electric Power Assisted Steering (EPAS) reports that power steering is unavailable for the remainder of the current power cycle.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS monitor detects a condition affecting EPAS and disables power steering.
When it clears
Vehicle completes a power cycle.
Potential impact
Power steering is unavailable for the remainder of the current drive cycle.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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.