# 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.

- Type: Service bulletin
- NHTSA id: 10233543
- Published by NHTSA: 2023\-04\-04
- Manufacturer's number: 23\-AT\-001G
- Manufacturer's date: 2023\-03\-20
- NHTSA component: ENGINE 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233543-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233543-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2019 to 2023 GENESIS G70
- 2019 to 2023 GENESIS G80
- 2019 to 2023 GENESIS G90
- 2022 to 2023 GENESIS GV70
- 2021 to 2023 GENESIS GV80

## Recalls for the same vehicles and component

- [2024158](/recalls/tc/2024158.md), 2024-03-08: Engine
- [24V191000](/recalls/nhtsa/24V191000.md), 2024-03-08: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

## Other bulletins for the same vehicles and component

- [26\-HA\-002G TSB](/bulletins/11033845.md), 2026-06-16, Service bulletin: ENGINE. 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 TSB](/bulletins/11031401.md), 2026-04-21, Service bulletin: ENGINE; ELECTRICAL SYSTEM. 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 TSB](/bulletins/11027792.md), 2026-01-27, Service campaign: ENGINE. 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 DCS](/bulletins/11027790.md), 2026-01-27, Service campaign: ENGINE. 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 OL](/bulletins/11025550.md), 2025-11-14, Service campaign: ENGINE. 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 OL](/bulletins/11023246.md), 2025-09-20, Service campaign: ENGINE. Genesis has become aware that some vehicles may illuminate the Check Engine Light indicator as a result of detected engine misfires.
- [25\-01\-051G TSB](/bulletins/11021791.md), 2025-08-12, Service campaign: ENGINE. 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 DN](/bulletins/11021790.md), 2025-08-12, Service campaign: ENGINE. 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\-058G](/bulletins/10253019.md), 2024-04-11, Service bulletin: ENGINE AND ENGINE COOLING. 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\-020G](/bulletins/10253015.md), 2024-04-11, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. 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.

JSON: [/v1/bulletins/10233543](/v1/bulletins/10233543)

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