DI family
DI_a139_rear1lUnitDisabled
Power Reduced
What does the DI_a139_rear1lUnitDisabled alert mean?
Drive Inverter Warning: Rear 1 left drive unit disabled.
What you'll see in your Tesla
- Power Reduced
- Rear Axle 1 Left Motor temporarily disabled
What triggers it
Fault detected in the rear drive unit
When it clears
Fault in rear drive unit is no longer present
Potential impact
Unable to produce any torque or power on the rear wheels
Affected models
Semitruck
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.