Service bulletins for the 2015 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.
268 on file from NHTSA, as of 2026-10-19.
About C1356 on the 2015 Kia Optima: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
By topic
Only bulletins with trouble code: C1356 are shown. Show all
| TSB CHA067 | 2017-02-16. Service bulletin. SERVICE BRAKES, ELECTRIC; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. THIS BULLETIN PROVIDES INFORMATION RELATED TO AN IBAU (INTEGRATED BRAKE ACTUATION UNIT) SOFTWARE UPGRADE FOR SOME 2014-2016 MY OPTIMA HYBRID (TF HEV) VEHICLES, PRODUCED FROM DECEMBER 2, 2013 THROUGH JULY 22, 2015, WHICH MAY EXHIBIT A MALFUNCTION INDICATOR LIGHT (MIL) ON WITH DTC C1356 AND NO DRIVABILITY CONCERNS. TO RESOLVE THE CONCERN, REPROGRAM THE IBAU USING THE GDS/KDS DOWNLOAD, AS DESCRIBED IN THIS BULLETIN. |
|---|---|
| TSBCHA067 | 2017-01-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. TSB: ECU UPGRADE – MIL ON WITH DTC C1356 - THIS BULLETIN PROVIDES INFORMATION RELATED TO AN IBAU (INTEGRATED BRAKE ACTUATION UNIT) SOFTWARE UPGRADE FOR SOME 2014~2016MY OPTIMA HYBRID (TF HEV) VEHICLES, PRODUCED FROM DECEMBER 2, 2013 THROUGH JULY 22, 2015, WHICH MAY EXHIBIT A MALFUNCTION INDICATOR LIGHT (MIL) ON WITH DTC C1356 AND NO DRIVABILITY CONCERNS. TO RESOLVE THE CONCERN, REPROGRAM THE IBAU USING THE GDS/KDS DOWNLOAD, AS DESCRIBED IN THIS BULLETIN. FOR CONFIRMATION THAT THE LATEST REFLASH HAS BEEN PERFORMED, VERIFY ROM ID USING THE TABLES IN THIS TSB. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.