P1B70 on the 2012 Hyundai Sonata
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| 19-HC-002H | 2019-09-30. Service bulletin. This bulletin provides instructions for a Battery Management System (BMS) software update to optimize DTC P1B70 - HEV Battery Voltage Too Low diagnostic control logic. |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.