EPAS3S family
EPAS3S_a148_vMaxAssist
Not Available
What does the EPAS3S_a148_vMaxAssist alert mean?
Electronic Power Assist Steering (EPAS) maximum vehicle speed assist applied
What you'll see in your Tesla
- Not Available
What triggers it
DI vehicle speed QF degraded below acceptable state
When it clears
Electronic Power Assist Steering (EPAS) power cycle
Potential impact
Electronic Power Assist Steering (EPAS) assist at max vehicle speed level
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.