DI family
DI_a178_steeringAngleOffsetFault
Steering alignment needs adjustment
What does the DI_a178_steeringAngleOffsetFault alert mean?
The drive interface (DI) electronic control unit (ECU) detects a steering angle offset that exceeds plausibility.
What you'll see in your Tesla
- Steering alignment needs adjustment
- Service is required
What triggers it
The DI ECU detects that the steering angle offset exceeds the sensor plausibility monitor threshold, or there is an issue with the sensor plausibility monitor.
When it clears
User has vehicle alignment performed at Service Center.
Potential impact
Stability control and traction control are unavailable, requiring greater manual input from the driver.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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.