DIF family
DIF_a127_gracefulPowerOff
Power Reduced
What does the DIF_a127_gracefulPowerOff alert mean?
Drive Unit Graceful Power Off (GPO) has been triggered. The Drive Unit will lose current input from the High Voltage (HV) battery.
What you'll see in your Tesla
- Power Reduced
- PULL OVER SAFELY
What triggers it
Drive Unit GPO has been triggered. The Drive Unit will lose current input from the HV battery.
When it clears
GPO is no longer in effect.
Potential impact
The Drive Unit will ramp down all torque production. The Drive Unit may not function as expected.
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.