IAPU family
IAPU_a045_vEpsHigh
Air dryer error detected
What does the IAPU_a045_vEpsHigh alert mean?
Power supply error.
What you'll see in your Tesla
- Air dryer error detected
- Service is required
Potential impact
No electronic governing or regeneration available, Yellow Warning lamp active
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.