MyTeslaMate
EPAS3S family

EPAS3S_a108_uiTuneReqCntError

Not Available

What does the EPAS3S_a108_uiTuneReqCntError alert mean?

Invalid UI_chassisControlCounter value received

What you'll see in your Tesla

  • Not Available

What triggers it

UI_chassisControlCounter is not incrementing correctly

When it clears

Electronic Power Assist Steering (EPAS) observes UI_chassisControlCounter incrementing correctly

Potential impact

Reduced steering assist

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.