Service bulletins for the 2014 Kia Optima
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
353 on file from NHTSA, as of 2026-10-19.
About P1B70 on the 2014 Kia Optima: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P1B70 are shown. Show all
| TSBELE147 | 2018-06-25. Service bulletin. ELECTRICAL SYSTEM. TSB - BMS LOGIC IMPROVEMENT FOR DTC P1B70 - This bulletin provides the procedure to improve the logic of the Battery Management System (BMS) on some 2011-2016MY Optima Hybrid (TF HEV) vehicles, produced from February 15, 2011 through July 22, 2015, which may experience a malfunction indicator light (MIL) illumination with DTC P1B70 even though there is no actual malfunction. |
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| PS292 | 2017-08-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. PIT STOP: DTC P1B70/P1B74/ P1B96 - HIGH VOLTAGE BATTERY SENSOR CIRCUIT FAULT - When addressing a customer complaint related to a battery warning lamp illuminated in the dash and drivability issues, access GDS to check for any active DTC(s). Also, review the BMS > Current Data to inspect for one or more HEV battery cells showing one (1) volt, or more, lower than the than rest of the cells. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.