MyTeslaMate
EPAS3S family

EPAS3S_a144_diSpdMia

Not Available

What does the EPAS3S_a144_diSpdMia alert mean?

DI_speed - backup vehicle speed - message not received.

What you'll see in your Tesla

  • Not Available

What triggers it

Electronic Power Assist Steering (EPAS) does not receive DI_speed on CAN as expected

When it clears

Electronic Power Assist Steering (EPAS) receives expected DI_speed message on CAN

Potential impact

The power steering is operational but the level of assist is decreased and External Angle Controller is inhibited.

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.