Service bulletins for the 2012 Hyundai Sonata
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.
230 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: 12-volt battery are shown. Show all
| 19-HC-002H | 2019-09-30. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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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| 19-EE-003H | 2019-05-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. The following summarizes the service procedures for Lithium Battery replacement: |
| 5NP-E2C3Q-09 | 2017-09-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This bulletin provides information on how to return a Hyundai HEV/PHEV/EV/Fuel Cell Lithium Battery for proper disposal and safe environmental recycling using Hyundai?s authorized vendor Kinsbursky Brothers Inc. (KBI). |
| TSB-14-HC-002 | 2014-10-30. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. HYUNDAI: SOME VEHICLES EXPERIENCE NOT MOVING FROM STOP OR GASOLINE ENGINE NOT TURN ON, CHARGING WARNING LIGHT ON, INSTRUMENT CLUSTER DISPLAY WARNING SAFELY STOP AND DO NOT DRIVE, NO EV READY MODE OR READY LIGHT BLINKS ON/OFF. MODEL 2011-2014 SONATA (YF HEV). *PE UPDATED 3/31/15. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.