WenmarOpen by Wenmar Pro

Service bulletin 26-EM-016H TSB

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11038458
Published by NHTSA2026-10-14
Manufacturer's number26-EM-016H TSB
Manufacturer's date2026-10-08
NHTSA componentENGINE

NHTSA's summary

Some vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin outlines the combustion chamber cleaning procedure for vehicles diagnosed with this condition. All internal combustion engines consume some engine oil during normal operation, depending on driving conditions and mileage, and this procedure should only be performed when deemed necessary based on inspection and diagnosis of the vehicle as outlined in TSB 26-EM-015H, Engine Oil Consumption – Inspection & Repair Guidelines, or the latest revision.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
HYUNDAI ACCENT2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
HYUNDAI ELANTRA2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
HYUNDAI ELANTRA COUPE2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI ELANTRA GT2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI ELANTRA GT2017, 2018, 2019, 2020
HYUNDAI ELANTRA HYBRID2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI ELANTRA N2022, 2023, 2024, 2025, 2026
HYUNDAI ELANTRA TOURING2009 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI ELANTRA TOURING2010
HYUNDAI ELANTRA TOURING2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI IONIQ HYBRID2017, 2018, 2019, 2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI IONIQ PLUG-IN HYBRID2018, 2019, 2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI KONA2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027
HYUNDAI KONA N2022, 2023
HYUNDAI SANTA FE2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
HYUNDAI SANTA FE2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027
HYUNDAI SANTA FE HYBRID2021, 2022, 2023, 2024, 2025, 2026, 2027 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI SANTA FE PLUG-IN HYBRID2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI SANTA FE SPORT2013, 2014, 2015, 2016, 2017, 2018
HYUNDAI SONATA2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
HYUNDAI SONATA HYBRID2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI SONATA PLUG-IN HYBRID2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI TIBURON2002, 2003, 2004, 2005, 2006, 2007, 2008
HYUNDAI TUCSON2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
HYUNDAI TUCSON HYBRID2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI TUCSON PLUG-IN HYBRID2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI VELOSTER2012, 2013, 2014, 2015, 2016, 2017
HYUNDAI VELOSTER2019, 2020, 2021
HYUNDAI VELOSTER N2019, 2020, 2021, 2022

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
25V5490002025-08-25. ENGINE AND ENGINE COOLING:CRITICAL FASTENERS
24V3080002024-05-01. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
20242552024-04-30. Engine
20222442022-05-08. Engine
22V1970002022-03-28. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PIPES, HOSES, AND FITTINGS; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
20221072022-03-10. Engine
20216742021-11-04. Engine
20216532021-10-26. Engine
20216122021-10-01. Engine
20215752021-09-17. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
26-01-081H DCS2026-10-14. Service campaign. Certain Santa Fe Hybrid (TM HEV), Santa Fe Plug-in Hybrid (TM PHEV), Tucson Hybrid (NX4 HEV), andTucson Plug-in Hybrid (NX4 PHEV) vehicles may experience intake air line freezing and Exhaust GasRecirculation (EGR) valve corrosion due to excessive condensation accumulating within the EGR system.This condition can lead to drivability concerns related to the following DTCs: - P040400: (Exhaust Gas Recirculation Control Circuit Range) - P049D00: (EGR 'A' Control Position Exceeded Learning Limit) - P047100: (Exhaust Pressure Sensor 'A' Circuit Range/Performance) - P012800: Coolant Thermostat (Coolant Temperature below Thermostat Regulation Temperature) - P262B00: (Control Module Power Off Timer Performance) - P050C00: Cold Start Engine Coolant Temperature Performance - P1DFD00: (EVAP System Purge Pump Target Speed) - P2DFD00: (EVAP System Purge Pump Performance) - P112000: (Inlet Metering Valve – Malfunction) - P033500: (Crankshaft Position Sensor A)
26-EM-015H TSB2026-10-13. Service bulletin. Certain vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin provides the inspection and repair procedures for vehicles exhibiting this condition. All internal combustion engines consume engine oil as part of normal engine operation. Oil consumption rates may vary based on mileage, operating conditions, driving habits, and maintenance history. Hyundai recommends following the prescribed maintenance schedule and periodically checking the engine oil level using the dipstick to maintain proper engine oil level.
26-01-081H TSB2026-10-09. Service campaign. Certain Santa Fe Hybrid (TM HEV), Santa Fe Plug-in Hybrid (TM PHEV), Tucson Hybrid (NX4 HEV), and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may experience intake air line freezing and Exhaust Gas Recirculation (EGR) valve corrosion due to excessive condensation accumulating within the EGR system. This condition can lead to drivability concerns related to the following DTCs: • P040400: (Exhaust Gas Recirculation Control Circuit Range) • P049D00: (EGR 'A' Control Position Exceeded Learning Limit) • P047100: (Exhaust Pressure Sensor 'A' Circuit Range/Performance) • P012800: Coolant Thermostat (Coolant Temperature below Thermostat Regulation Temperature) • P262B00: (Control Module Power Off Timer Performance) • P050C00: Cold Start Engine Coolant Temperature Performance • P1DFD00: (EVAP System Purge Pump Target Speed) • P2DFD00: (EVAP System Purge Pump Performance) • P112000: (Inlet Metering Valve – Malfunction) • P033500: (Crankshaft Position Sensor A) The bulletin below provides instructions to perform a software update for the Engine Control Module (ECM).
26-01-081H DN2026-10-09. Service campaign. Certain Santa Fe Hybrid (TM HEV), Santa Fe Plug-in Hybrid (TM PHEV), Tucson Hybrid (NX4 HEV), and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may experience intake air line freezing and Exhaust Gas Recirculation (EGR) valve corrosion due to excessive condensation accumulating within the EGR system. This condition can lead to drivability concerns related to the following DTCs: • P040400: (Exhaust Gas Recirculation Control Circuit Range) • P049D00: (EGR 'A' Control Position Exceeded Learning Limit) • P047100: (Exhaust Pressure Sensor 'A' Circuit Range/Performance) • P012800: Coolant Thermostat (Coolant Temperature below Thermostat Regulation Temperature) • P262B00: (Control Module Power Off Timer Performance) • P050C00: Cold Start Engine Coolant Temperature Performance • P1DFD00: (EVAP System Purge Pump Target Speed) • P2DFD00: (EVAP System Purge Pump Performance) • P112000: (Inlet Metering Valve – Malfunction) • P033500: (Crankshaft Position Sensor A)
9D1 OL2026-09-26. Service campaign. Hyundai has become aware that certain Kona vehicles equipped with 1.6T-GDI engines may not meet engine-out NOx (Nitrogen Oxides) and Particulate Matter (PM) emission standards.
26-EM-014H TSB2026-09-22. Service bulletin. Some Tucson (TL) vehicles equipped with a 2.0L engine may exhibit a continued DTC P132600 after an ECM logic update has been performed per TSB 24-01-068H, Engine Monitoring Logic (Service Campaign 966). This bulletin provides instructions to inspect and resolve other engine mechanical issues and if DTC P132600 remains, then a procedure and manual mode passwords are given to perform the update again in manual mode to resolve this condition.
9D3 OL2026-09-11. Service campaign. Hyundai has become aware that your Hyundai Elantra equipped with a 2.0 ATK engine may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software intended only for Korean-built Elantra vehicles and may not meet specifications.
26-01-027H DN2026-09-02. Service campaign. Certain Kona (OS) vehicles equipped with the 1.6T-GDI engine may exhibit elevated engine-out emissions that may not meet engine-out NOx (Nitrogen Oxides) and Particulate Matter (PM) emission standards.
26-01-027H TSB2026-09-02. Service campaign. Certain Kona (OS) vehicles equipped with the 1.6T-GDI engine may exhibit elevated engine-out emissions that may not meet engine-out NOx (Nitrogen Oxides) and Particulate Matter (PM) emission standards. This bulletin provides the instructions to update the emission logic within the Engine Control Module (ECM) to improve engine-out NOx and PM emissions within permissible specifications.
26-01-039H DN2026-08-15. Service campaign. Certain Elantra (ADA) vehicles may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software that can set DTC P132700; this software was intended only for Korean-built Elantra (AD) vehicles. In addition, the California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.