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Service bulletins for the 2011 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.

285 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Labels and manuals are shown. Show all

Bulletins, newest first
22-01-023H-22022-12-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ENGINE AND ENGINE COOLING. Certain vehicles may experience the Check Engine warning lamp illuminated with DTC P1326 and/or engine may exhibit abnormal noise, or no crank/no start condition related to connecting rod bearing wear or damage. This Dealer Best Practice outlines the service process to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results, as well as related warranty coverage for the conditions outlined above.
22-EM-006H-22022-12-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. The warranty coverage for engine repair or replacement regarding engine damage or malfunction from connecting rod bearing wear has been extended to 15 years or 150,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners. Commercial entities and individuals engaged in the buying, selling, leasing, or renting of motor vehicles, as well as salvaged vehicles, are ineligible for the extended warranty.
22-EM-004H2022-02-08. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides additional service diagnostic information and repair procedures related to Electric Waste Gate Actuator (EWGA) equipped vehicles listed below. Refer to the applicable Engine Control / Fuel System sections in the Shop Manual, and then follow the procedures outlined in this bulletin whenever a vehicle with the following symptom(s) are being diagnosed: ➢ Check Engine Light illumination with EWGA related DTC. ➢ Intermittently high/low turbocharger boost pressures. ➢ Abnormal noise from the turbocharger.
21-EM-005H2021-04-07. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. The Powertrain warranty coverage for certain engine repairs and/or replacement where the engine damage, defect, or failure is related to connecting rod bearing wear, has been extended to 15 years or 150,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.
TXXI Dealer Best2020-08-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. This Dealer Best Practice intends to inform dealers of a proposed settlement (“Settlement”) for a class action lawsuit filed against Hyundai Motor America (“HMA”). Beginning in July 2020, customers affected by the proposed settlement will begin becoming informed of the settlement by mailed notice and email, and they may direct questions to dealers. Please go to HyundaiThetaEngineSettlement.com for full details. In addition, customer questions can also be directed to 1-866-944-7620 (Monday to Friday 7am-5pm PST).
20-AT-016H2020-05-07. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
19-01-006H-42019-11-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:WIRING. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and install a wire harness extension and/or replacement engine based on the inspection results.
19-HC-002H2019-09-30. 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.
5NP-J7X2Y-122017-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Hyundai Motor America is conducting a Service Campaign to perform an underbody corrosion preventative service on certain 2011 ? 2014 MY Sonata previously or currently registered in Salt Belt States. Service Campaign 946 provides a procedure to perform the preventative measure.
5NPU7G9E022017-09-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some Veloster (FS) and Sonata Hybrid (YF HEV) vehicles may experience a check engine warning light ON with any of the following DTCs found stored: ? P0442 - Evaporative System (EVAP) - Small Leak ? P0455 - Evaporative System (EVAP) - Large Leak ? P0456 - Evaporative System (EVAP) - Very Small Leak This bulletin provides the service procedure to inspect vehicles for a potential crack found at the evaporative canister insert nuts: ? If crack is not found at canister insert nut: Bracket Kit (includes bracket bolts & rubber washers) and Bolts (and a nut for FS) as listed in the Part Information table (page 2) are to be installed. ? If crack is confirmed at the canister insert nut: Replacement Canister Kit, Bolts (and a Nut for FS) as listed in the Parts Information table (pages 2-3) are to be installed.
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."
5NP-T3F4F-092016-10-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS BULLETIN PROVIDES A SUPPLEMENTAL PROCEDURE TO THE SONATA HYBRID SERVICE SHOP MANUAL. IF YOU ARE SERVICING A VEHICLE WITH THE DTCS LISTED BELOW, FOLLOW THE SERVICE PROCEDURE ON PAGE 2 OF THIS TSB.
TSB-10-GI-0012010-10-26. Service bulletin. EQUIPMENT:OTHER:LABELS. HYUNDAI: LABEL REQUIREMENTS FOR VEHICLE LOADING TO COMPLY WITH FMVSS 110. EFFECTIVE 6/2/08, FMVSS 110 (FMVSS 110) SETS A THRESHOLD FOR CORRECTING LOAD CAPACITY INFORMATION INDICATED ON TIRE PLACARDS WHEN VEHICLE WEIGHT HAS BEEN INCREASED BEFORE RETAIL SALE. ALL MODELS INCLUDED AFTER 6/2/08. *PE

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