DIR family
DIR_a248_vehicleSpeedLimited
Vehicle speed limited
What does the DIR_a248_vehicleSpeedLimited alert mean?
The Drive Inverter (DIx) detects the heat sink temperature sensor is irrational. The motor speed and vehicle speed may be limited.
What you'll see in your Tesla
- Vehicle speed limited
- Top speed may be restored on next drive
What triggers it
DIx detects the heat sink temperature sensor measuring an irrational temperature value.
When it clears
The heat sink temperature sensor is no longer irrational.
Potential impact
DIx may limit motor speed and vehicle speed.
Affected models
Model 3 2017-2023
Model Y
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.