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Service bulletin 23-AT-001G

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 id10233543
Published by NHTSA2023-04-04
Manufacturer's number23-AT-001G
Manufacturer's date2023-03-20
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

When servicing a vehicle with a “Check Engine light” and any of the DTCs listed below, follow the Service Procedure to replace the related solenoid and E-module or park position switch.

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
GENESIS G702019, 2020, 2021, 2022, 2023
GENESIS G802019, 2020, 2021, 2022, 2023
GENESIS G902019, 2020, 2021, 2022, 2023
GENESIS GV702022, 2023
GENESIS GV802021, 2022, 2023

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

Recalls for the same vehicles and component
20241582024-03-08. Engine
24V1910002024-03-08. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

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-HA-002G TSB2026-06-16. Service bulletin. Some Genesis vehicles (listed below) equipped with Lambda-III 3.5T-GDI engines may exhibit reduced heater performance due to engine coolant deposits clogging the heater core. This bulletin provides instructions to verify the concern and to replace the front and rear heater core (if applicable).
26-EE-003G TSB2026-04-21. Service bulletin. Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch (solenoid) assembly.
26-01-007G TSB2026-01-27. Service campaign. Certain G70 (IK) vehicles equipped with the 2.0T-GDI engine may illuminate the Check Engine Light as a result of DTC P019100 (Fuel Rail Pressure Sensor Circuit Range/Performance). This bulletin provides instructions for updating the Engine Control Module (ECM).
26-01-007G DCS2026-01-27. Service campaign. Certain G70 (IK) vehicles equipped with the 2.0T-GDI engine may illuminate the Check Engine Light as a result of DTC P019100 (Fuel Rail Pressure Sensor Circuit Range/Performance).
914G OL2025-11-14. Service campaign. This notice is being sent to you as our records indicate you may have previously received an important Service Campaign notice for Genesis Campaign Number 914G. “Genesis is conducting a service campaign to update the Engine Control Module (ECM) Software for certain 2021 – 2024 model year G80, certain 2022 – 2025 model year GV70, and certain 2021 – 2024 model year GV80 vehicles equipped with 2.5 T-GDI engines.” Genesis has revised the list of vehicles impacted by Campaign 914G and determined that your vehicle IS NOT affected by this service campaign.
25-01-051 OL2025-09-20. Service campaign. Genesis has become aware that some vehicles may illuminate the Check Engine Light indicator as a result of detected engine misfires.
25-01-051G TSB2025-08-12. Service campaign. Certain G80 (RG3), GV70 (JK1/JK1A), and GV80 (JX1) vehicles equipped with Theta III 2.5L T-GDI engines may illuminate the Check Engine Light as a result of misfire DTCs P0300, P0301, P0302, P0303, or P0304 during cold start. This bulletin provides instructions for updating the Engine Control Module (ECM).
25-01-051G DN2025-08-12. Service campaign. Certain G80 (RG3), GV70 (JK1/JK1A), and GV80 (JX1) vehicles equipped with Theta III 2.5L T-GDI engine may illuminate the Check Engine Light as a result of misfire DTCs P0300, P0301, P0302, P0303, or P0304. The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.
21-01-058G2024-04-11. Service bulletin. Certain 2021MY Genesis G80 (RG3) vehicles may have coolant leakage from the radiator reservoir tank. Follow the procedure outlined in this bulletin to inspect the radiator reservoir tank, and if necessary, replace it with a new part.
21-01-020G2024-04-11. Service bulletin. This bulletin provides information related to the ECM(Engine Control Module) software update for G80/G90 with 5.0L GDI engine equipped vehicles. This updates the software logic dealing with OBD communication test.