DPB family
DPB_a083_chargePumpUndervoltage
Power braking assist reduced
What does the DPB_a083_chargePumpUndervoltage alert mean?
The charge pump is undervoltage.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
The voltage at the charge pump is less than expected.
When it clears
System continues to execute charge pump tests every 19s and will good check if execution is successful.
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.