DPB family
DPB_a270_RPSVectorRangeLow
Power braking assist reduced
What does the DPB_a270_RPSVectorRangeLow alert mean?
rotor position sensor raw signals: vector length is too low.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
Magnetic field too weak or electrical alert of rotor position sensor raw signals.
When it clears
Ignition off; wait 5 seconds; Ignition on
Potential impact
System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
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.