ESP family
ESP_a012_netUndervoltage
Not Available
What does the ESP_a012_netUndervoltage alert mean?
ESP/ABS unit voltage is low.
What you'll see in your Tesla
- Not Available
What triggers it
ESP has detected PARTY or CHASSIS CAN network is under-voltage.
When it clears
Ensure valid CAN network health and CAN harness connections are valid
Potential impact
May disable VDC/TC and degrade ABS
Affected models
Cybertruck
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.