# Service campaign 26\-01\-035G 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.

- Type: Service campaign
- NHTSA id: 11031316
- Published by NHTSA: 2026\-04\-15
- Manufacturer's number: 26\-01\-035G TSB
- Manufacturer's date: 2026\-04\-10
- Campaign id or software version: 913G
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031316-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031316-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2025 to 2026 GENESIS G80
- 2023 to 2026 GENESIS G90
- 2023 to 2026 GENESIS GV60
- 2026 GENESIS GV70
- 2025 to 2026 GENESIS GV80
- 2025 to 2026 GENESIS GV80 Coupe

## Recalls for the same vehicles and component

- [26V019000](/recalls/nhtsa/26V019000.md), 2026-01-16: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [25V833000](/recalls/nhtsa/25V833000.md), 2025-12-01: ELECTRICAL SYSTEM:ADAS; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR
- [25V474000](/recalls/nhtsa/25V474000.md), 2025-07-17: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [24V868000](/recalls/nhtsa/24V868000.md), 2024-11-18: ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- [24V204000](/recalls/nhtsa/24V204000.md), 2024-03-15: ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

## 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\-078G TSB](/bulletins/11038419.md), 2026-10-09, Service bulletin: ELECTRICAL SYSTEM; SERVICE BRAKES. Certain GV60 \(JW1 EV\) 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 Platform Controller \(VPC\) software to address this condition.
- [26\-01\-076G DCS](/bulletins/11037494.md), 2026-09-26, Warranty extension: ELECTRICAL SYSTEM; BACK OVER PREVENTION: WARNINGS. Certain GV60 \(JW1 EV\) vehicles may display a warning message and store DTC C137496 due to an internal software logic error affecting the front inner left ultrasonic sensor. This condition may result in the sensor being recognized as inoperative. Technical Service Bulletin \(TSB\) 26\-01\-076G the procedure to update the Advanced Driver Assistance System Parking \(ADAS PRK\) control module software to address this condition.
- [26\-01\-076G TSB](/bulletins/11037493.md), 2026-09-26, Warranty extension: BACK OVER PREVENTION: WARNINGS; ELECTRICAL SYSTEM. Certain GV60 \(JW1 EV\) vehicles may display a warning message and store DTC C137496 due to an internal software logic error affecting the front inner left ultrasonic sensor. This condition may result in the sensor being recognized as inoperative. This bulletin provides the procedure to update the Advanced Driver Assistance System Parking \(ADAS PRK\) control module software to address this condition.
- [26\-01\-076G TSB](/bulletins/11037492.md), 2026-09-26, Warranty extension: BACK OVER PREVENTION: WARNINGS; ELECTRICAL SYSTEM. Certain GV60 \(JW1 EV\) vehicles may display a warning message and store DTC C137496 due to an internal software logic error affecting the front inner left ultrasonic sensor. This condition may result in the sensor being recognized as inoperative. This bulletin provides the procedure to update the Advanced Driver Assistance System Parking \(ADAS PRK\) control module software to address this condition.
- [26\-01\-072G TSB](/bulletins/11037285.md), 2026-09-11, Service campaign: ELECTRICAL SYSTEM. Certain GV60 \(JW1 EV\) and G90 \(RS4\) vehicles may exhibit an inability to perform Over the Air \(OTA\) software updates due to an internal logic error that prevents the updates from being completed properly. This bulletin provides instructions to perform a Data Connectivity Unit \(DCU\) software update to correct this condition.
- [26\-01\-072G DCS](/bulletins/11037284.md), 2026-09-11, Service campaign: ELECTRICAL SYSTEM. Certain GV60 \(JW1 EV\) and G90 \(RS4\) vehicles may exhibit an inability to perform Over the Air \(OTA\)software updates due to an internal logic error that prevents the updates from being completed properly.
- [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.
- [L03A L04G DCS](/bulletins/11036096.md), 2026-08-11, Warranty extension: ELECTRICAL SYSTEM. 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.

JSON: [/v1/bulletins/11031316](/v1/bulletins/11031316)

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