PMR family
PMR_a101_hwVoltageMonitorTrip
Not Available
What does the PMR_a101_hwVoltageMonitorTrip alert mean?
The Error Signal Module (ESM) Voltage Monitor (VMON) module detected under/overvoltage on one or more of the following rails: VDDA 1.8V, VBGAP 0.9V, VDD 1.2V, IO BIAS, external supply monitor, VDDA 3.3V, ADC0, ADC1/2, ADC3/4, or ADC_R0/1.
What you'll see in your Tesla
- Not Available
What triggers it
Any of the relevant ESM VMON status registers indicate under/overvoltage.
When it clears
All the relevant ESM VMON status registers indicate nominal voltage.
Potential impact
The processor is put into a safe state as a result of the under/overvoltage.
Affected models
Model 3 2024+
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.