2019 Toyota Prius AWD-e LE – Will Not Drive With P300000
- Aug 17
- 1 min read
CUSTOMER CONCERN
A 12-volt battery warning appears, the vehicle will not drive, and DTC P300000 is stored for hybrid battery discharge control.
CAUSE
The confirmed repair identified a failed 12-volt auxiliary battery.
CORRECTION
Remove and replace the failed 12-volt auxiliary battery, clear DTC P300000, and verify the vehicle enters Ready mode and drives normally.
