DIF family
DIF_a059_heatsinkOT
Motor overheating
What does the DIF_a059_heatsinkOT alert mean?
Drive Inverter Warning: Heatsink over temperature
What you'll see in your Tesla
- Motor overheating
- PULL OVER IMMEDIATELY
What triggers it
Heatsink temperature (refer to heatsinkTemp) exceeds upper temperature threshold
When it clears
Heatsink temperature drops below upper temperature threshold
Potential impact
No direct impact. Could damage drive inverter if temperature is continuously too high.
Affected models
Model 3 2017-2023
Model 3 2024+
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.