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Service bulletins for the 2022 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
Certain vehicles2022-04-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the Service Procedure and replace the harness with an integrated oil temperature sensor.
22-01-018H2022-03-08. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING. Certain 2020-22MY Sonata (DN8a) and 2021-22MY Santa Fe (TMa) vehicles equipped with 2.5L engine may exhibit a MIL with DTC(s): • P2074: Mass Airflow Sensor Plausibility • P2074F0: Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Lower Load • P2074F1: Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Medium or High Load Secondary DTC(s) below may also be stored: • C136081: ESP Irreversible Error • C161308: CAN Signal Error EMS • C161386: CAN Signal Error EMS • C169381: Blind-Spot Collision Warning – CAN signal failure - ESC • C174181: ESC Not Available VSM (Check ESC) • C183586: CAN Message Failure ESC/IEB Vehicles diagnosed with DTC(s) may also experience reduced engine performance and limited power reduction mode. The ECM software revises the logic to accurately detect the amount of air the engine is receiving.
22-01-006H-22022-03-08. Service bulletin. ELECTRICAL SYSTEM; COMMUNICATION:MANUFACTURER TELEMATICS; ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin provides the procedure to update the ECU and TCU software to improve drivability and shift quality when accelerating.
21-EM-012H2022-01-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. Certain vehicles listed below equipped with 2.5T turbo engines may have a misassembled check valve for the PCV (Positive Crankcase Ventilation) system, resulting in engine oil entering the intake and contaminating the air cleaner. This bulletin describes the procedure to clean the air intake system and replace the PCV check valve and air cleaner.
21-01-075H2022-01-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Certain 2020-22MY Sonata (DN8a), 2021-22MY Santa Fe (TMa), and 2022MY Tucson (NX4/NX4a) vehicles equipped with 2.5L engine may exhibit a MIL with DTC(s): • P2074: Mass Airflow Sensor Plausibility • P2074F0: Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Lower Load • P2074F1: Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Medium or High Load Secondary DTC(s) below may also be stored: • C136081: ESP Irreversible Error • C161308: CAN Signal Error EMS • C161386: CAN Signal Error EMS • C169381: Blind-Spot Collision Warning – CAN signal failure - ESC • C174181: ESC Not Available VSM (Check ESC) • C183586: CAN Message Failure ESC/IEB Vehicles diagnosed with DTC(s) may also experience reduced engine performance and limited power reduction mode. The ECM software revises the logic to accurately detect the amount of air the engine is receiving.
21-EM-011H2021-11-06. Service bulletin. ENGINE AND ENGINE COOLING. Certain Sonata N-Line vehicles may have an uneven appearance between LH and RH exhaust tips due to slightly misaligned rear mufflers. This bulletin describes the procedure to adjust and realign the rear mufflers to correct the appearance.

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