MyTeslaMate
EPAS3S family

EPAS3S_a089_espWsMia

Not Available

What does the EPAS3S_a089_espWsMia alert mean?

The electric power assist steering (EPAS) Electronic Control Unit (ECU) is not receiving the wheel speeds message, resulting in a reduced amount of steering assist to preserve vehicle stability.

What you'll see in your Tesla

  • Not Available

What triggers it

The electric power assist steering (EPAS) Electronic Control Unit (ECU) does not receive the wheel speeds message.

When it clears

The electric power assist steering (EPAS) Electronic Control Unit (ECU) receives the wheel speeds message.

Potential impact

The power steering is operational but the level of assist is decreased.

Affected models

Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ Model Y Model Y 2025+

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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.