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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.

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Only bulletins with component: 12-volt battery are shown. Show all

Bulletins, newest first
TSB-ELE044R12017-08-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TSB: HIGH-VOLTAGE BATTERY ORDERING AND RETURN PROCEDURE - This bulletin outlines the ordering and return procedure for high-voltage Lithium-ion batteries equipped on EV/hybrid vehicles (hereafter referred to as "high-voltage batteries" or HVBs). Every Kia-approved EV/hybrid dealership?s parts and service departments should follow these procedures to ensure the fastest handling time and to minimize the possibility of charge-backs.
PS2922017-08-02. 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.
PS2922016-03-16. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
0442016-03-16. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.