# Warranty extension L03A L04G DCS

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: Warranty extension
- NHTSA id: 11036096
- Published by NHTSA: 2026\-08\-11
- Manufacturer's number: L03A L04G DCS
- Manufacturer's date: 2026\-07\-31
- Campaign id or software version: L03G L04G
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Certain 2026MY GV70 \(JK1A\) and 2026MY GV70 Electrified \(JK1A\) vehicles may exhibit a Data Communication Unit \(DCU\) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. Technical Service Bulletins \(TSBs\) 26\-01\-017G\-1 26\-01\-018G\-1 provide instructions to perform a software update for the DCU module. Over\-the\-Air \(OTA\): This update can also be conducted via OTA. Guests cancomplete on their own if they have an active subscription to Genesis Connected Services. A visit to retailers is not required if the update is conducted via OTA.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036096-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036096-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2026 GENESIS GV70
- 2026 GENESIS GV70 ELECTRIFIED

## Recalls for the same vehicles and component

- [26V019000](/recalls/nhtsa/26V019000.md), 2026-01-16: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [26\-01\-077G TSB](/bulletins/11038425.md), 2026-10-09, Warranty extension: ELECTRICAL SYSTEM; SERVICE BRAKES. Certain GV70 Electrified \(JK1A EV\) and G80 Electrified \(RG3 EV\) vehicles may display a false warning light with Diagnostic Trouble Codes \(DTC\) U151A8C and/or U151B8C when vehicle is placed into “Ready” mode. This bulletin provides the procedure for updating the Vehicle Control Unit \(VCU\) software to address this condition.
- [26\-01\-017G\-1 TSB](/bulletins/11036099.md), 2026-08-11, Warranty extension: ELECTRICAL SYSTEM. Certain GV70 \(JK1A\) vehicles may exhibit a Data Connectivity Unit \(DCU\) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
- [26\-01\-018G\-1 TSB](/bulletins/11036097.md), 2026-08-11, Warranty extension: ELECTRICAL SYSTEM. Certain GV70 Electrified \(JK1A EV\) vehicles may exhibit a Data Connectivity Unit \(DCU\) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
- [26\-GI\-002G TSB](/bulletins/11033711.md), 2026-06-06, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 1st Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater \(NAU\) and updated by USB.
- [26\-01\-035G DCS](/bulletins/11031317.md), 2026-04-15, Service campaign: ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services \(CCS\) functions. This may be due to an occasional disconnection on Verizon's communication network. Technical Service Bulletin \(TSB\) 26\-01\-035G provides instructions to verify Connected Car Data Communication Unit \(DCU\) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
- [26\-01\-035G TSB](/bulletins/11031316.md), 2026-04-15, Service campaign: ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services \(CCS\) functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to verify Connected Car Data Communication Unit \(DCU\) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
- [26\-01\-018G DCS](/bulletins/11028981.md), 2026-02-24, Service campaign: ELECTRICAL SYSTEM. Certain GV70 Electrified \(JK1A EV\) vehicles may exhibit a Data Communication Unit \(DCU\) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. Technical Service Bulletin \(TSB\) 26\-01\-018G provides instructions to perform the software update for the DCU module.
- [26\-01\-018G TSB](/bulletins/11028979.md), 2026-02-24, Service campaign: ELECTRICAL SYSTEM. Certain GV70 Electrified \(JK1A EV\) vehicles may exhibit a Data Communication Unit \(DCU\) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
- [26\-01\-017G DCS](/bulletins/11028972.md), 2026-02-24, Service campaign: ELECTRICAL SYSTEM. Certain GV70 \(JK1A\) vehicles may exhibit a Data Communication Unit \(DCU\) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. Technical Service Bulletin \(TSB\) 26\-01\-017G provides instructions to perform the software update for the DCU module.
- [26\-01\-017G TSB](/bulletins/11028971.md), 2026-02-24, Service campaign: ELECTRICAL SYSTEM. Certain GV70 \(JK1A\) vehicles may exhibit a Data Communication Unit \(DCU\) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.

JSON: [/v1/bulletins/11036096](/v1/bulletins/11036096)

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