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Service bulletin 20-01-039H

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 id10182304
Published by NHTSA2020-11-06
Manufacturer's number20-01-039H
Manufacturer's date2020-10-09
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

This bulletin provides information and procedures for collecting OBD “In Use Monitor Performance Ratio” (IUMPR) data on certain 2019-2021MY vehicles at California dealers. This reporting is mandated by CARB (California Air Resources Board).

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

Electrical system, Equipment and accessories

Vehicles listed
GENESIS G702019, 2020, 2021
HYUNDAI ACCENT2019, 2020
HYUNDAI ELANTRA2019, 2020
HYUNDAI ELANTRA GT2019, 2020
HYUNDAI IONIQ2020
HYUNDAI IONIQ ELECTRIC2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI IONIQ HYBRID2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI IONIQ PLUG-IN HYBRID2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI KONA2019, 2020, 2021
HYUNDAI KONA ELECTRIC2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI NEXO2019, 2020
HYUNDAI PALISADE2020, 2021
HYUNDAI SANTA FE2019, 2020
HYUNDAI SANTA FE XL2019
HYUNDAI SONATA2019, 2020
HYUNDAI SONATA HYBRID2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI SONATA PLUG-IN HYBRID2019 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI TUCSON2019, 2020, 2021
HYUNDAI VELOSTER2019, 2020, 2021

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

Recalls for the same vehicles and component
20240892024-02-13. Electrical
24V1070002024-02-13. ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID
20231472023-03-17. Electrical
20227282022-12-16. Electrical
22V9410002022-12-16. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT
20224722022-08-19. Accessories
22V2580002022-04-14. ELECTRICAL SYSTEM:PROPULSION SYSTEM:FUEL CELL; FUEL SYSTEM, OTHER:DELIVERY
21V9440002021-12-07. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:ONBOARD (OBCM); ELECTRICAL SYSTEM:SOFTWARE
21V1270002021-03-01. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
20V6300002020-10-13. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM):SOFTWARE; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

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-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.
9C5 OL2026-09-11. Service campaign. Hyundai has determined that certain Kona Electric and Ioniq Electric vehicles are eligible for a BMS software update. This update to the BMS software improves the system’s diagnostic capability.
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.
26-01-065H DCS2026-09-02. Service campaign. Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system's diagnostic capability. Follow Technical Service Bulletin (TSB) 26-01-065H to complete the BMS software update.
26-01-065H DN2026-09-02. Service campaign. Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system’s diagnostic capability.
26-01-065H TSB2026-08-21. Service campaign. Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system’s diagnostic capability. Follow this bulletin to complete the BMS software update.
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.
26-01-039H TSB2026-08-15. 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. This bulletin provides instructions to perform a software update for the Engine Control Module (ECM) to revert to the original ROM ID, apply the emissions label under the hood, and provide the vehicle owner with Proof of Correction.
26-EE-007H TSB2026-06-23. Service bulletin. Some Palisade (LX2), Tucson (NX4), and Tucson Hybrid (NX4 HEV) vehicles may experience battery drain due to continuous operation of the cooling fan after vehicle ignition has been turned off, potentially resulting in a no-start condition. The continuous cooling fan operation is caused by a stuck relay in the engine room PCB block. This bulletin provides instructions to replace the engine room PCB block to ensure the proper operation of the cooling fan.
9C2 0605182026-06-06. Service campaign. Following completion of Service Campaign 9C2 (Theta II Emissions Improvement), certain vehicles may exhibit a brief hesitation or rough shifting condition during cold start operation. If present, this condition is expected to occur only within approximately the first 1-3 minutes after engine start, while the catalyst is reaching its normal operating temperature.