WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
5NP-B3Q3X-072017-08-17. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin provides additional service procedures to assist the diagnosis of vehicles equipped with variable displacement A/C compressors that features an external control valve (ECV).
5NP-E9R9G-082017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. The warranty coverage for the clock spring has been extended to 15 years with unlimited mileage from the date of original retail delivery or date of first use, whichever occurs first. Refer to the warranty and service parts information outlined in this bulletin whenever clock spring replacement is required.
5NP-D4B5F-042017-08-10. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Some Sonata (YF) vehicles may develop a condition with the separator plate in the middle of the heater box (Heater & Evaporator Assembly) becoming warped and may cause interference against one or more of the internal flaps that control air flow to the vents. This condition may result in HVAC system exhibiting abnormal noise from the heater box, difficulty to control the vented temperature, blocked airflow due to improper mode control, and/or airflow stuck in defrost mode.
5NP-F8M5G-032017-08-10. Service bulletin. STEERING; EQUIPMENT:ELECTRICAL. Hyundai has announced an extended warranty for the motor driven power steering (MDPS) coupling on the following vehicles: ? 2011-2014 Sonata (YFa), 2011-2014 Sonata Hybrid (YF HEV) ? 2007-2015 Elantra (HD, MD/UD), 2009-2012 Elantra Touring (FD) The MDPS been extended to 10 years from the date of original delivery or the date of first use, or 100,000 miles, whichever occurs first. This warranty extension applies to all original and subsequent owners of the affected vehicles.
5NP-G5Z6W-032017-08-10. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM. The MDPS (motor driven power steering) assembly contains a flexible rubber coupling which may wear over time resulting in a slight "clicking" or "thud" type noise when turning the steering wheel. The warranty coverage for this coupling has been extended to 10 years from the date of original retail delivery or date of first use or 100,000 miles, whichever occurs first. This bulletin describes the service procedure to replace the coupling. Refer to the warranty and service parts information outlined in this bulletin whenever MDPS coupling replacement is required.
5NP-Q6G9Y-012017-01-26. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. HYUNDAI MOTOR AMERICA IS CONDUCTING A SERVICE CAMPAIGN TO REPLACE THE OIL FEED PIPE ASSEMBLY ON CERTAIN 2011-14MY SONATA AND 2013-16MY SANTA FE SPORT VEHICLES EQUIPPED WITH 2.0L TURBO ENGINES. SERVICE CAMPAIGN T1N PROVIDES A PROCEDURE TO REPLACE THE OIL FEED PIPE ASSY.
5NP-U9G4Z-092016-10-14. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS BULLETIN PROVIDES WARRANTY EXTENSION INFORMATION REGARDING THE ENGINE SHORT BLOCK ASSEMBLY (CONSISTING OF THE ENGINE BLOCK, CRANKSHAFT AND BEARINGS, CONNECTING RODS AND BEARINGS, AND PISTONS) ON 2011-2014MY SONATA (YF) VEHICLES MANUFACTURED AT HYUNDAI MOTOR MANUFACTURING ALABAMA (HMMA).
5NP-U7X3S-092016-10-14. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. "HYUNDAI IS PROVIDING AN EXTENDED WARRANTY FOR THE ENGINE “SHORT BLOCK “ASSEMBLY (CONSISTING OF THE ENGINE BLOCK, CRANKSHAFT AND BEARINGS, CONNECTING RODS AND BEARINGS, AND PISTONS) ON 2011–2014 SONATAS."
13-01-0252016-03-16. Service bulletin. EQUIPMENT. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
14-AT-0102016-03-16. Service bulletin. EQUIPMENT. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
13-BE-0052016-03-16. Service bulletin. EQUIPMENT. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
13-BD-0022016-03-16. Service bulletin. EQUIPMENT. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
13-FL-0042016-03-16. Service bulletin. EQUIPMENT. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
13-EE-0012016-03-16. Service bulletin. EQUIPMENT. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
13-BE-0082016-03-16. Service bulletin. EQUIPMENT. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TSB-14-HC-0032015-04-04. Service bulletin. EQUIPMENT:ELECTRICAL. HYUNDAI: PROCEDURES AND DIAGNOSIS INFORMATION IS PROVIDED, ON SOME VEHICLES, REGARDING ELECTRIC OIL PUMP (EOP) AND OIL PUMP CONTROL UNIT (OPU), WHEN VARIOUS ISSUES OCCUR. MODEL 2011-14 SONATA. *PE

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