MyTeslaMate
DPB family

DPB_a035_PDURouterinitializationFailed

Power braking assist reduced

What does the DPB_a035_PDURouterinitializationFailed alert mean?

Protocol Data Unit (PDU) Router initialization failed (PDU Router changed to PDUR_REDUCED state).

What you'll see in your Tesla

  • Power braking assist reduced
  • Braking may require increased effort

What triggers it

PDU Router initialization failed (PDU Router changed to PDUR_REDUCED state).

When it clears

PDU Router module is initialized before interfaced modules

Potential impact

System will be running with internal degraded pedal map. Braking may require increased effort.

Affected models

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.