MyTeslaMate
EPASTS family

EPASTS_a177_etsrInvalidated

Not Available

What does the EPASTS_a177_etsrInvalidated alert mean?

This alert is reported when the ElapsedTimeSinceReset (ETSR) counter becomes greater than the ETSR_THRESHOLD_TIMESTAMP and counter forced to 0xFFFFFFFF

What you'll see in your Tesla

  • Not Available

What triggers it

EPAS elapsed time since reset (ETSR) counter becomes greater than the tolarated limit and counter forced to 0xFFFFFFFF.

When it clears

EPAS power cycle.

Potential impact

EPAS QM reset when is less likely to disturb the driver. If it is not possible, there will be incoming communication freeze and a reset.

Affected models

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.