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Service campaign 26-01-035G 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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11031317
Published by NHTSA2026-04-15
Manufacturer's number26-01-035G DCS
Manufacturer's date2026-04-10
Campaign id or software version913G
NHTSA componentELECTRICAL 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. 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.

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

Vehicles listed
GENESIS G802025, 2026
GENESIS G902023, 2024, 2025, 2026
GENESIS GV602023, 2024, 2025, 2026
GENESIS GV702026
GENESIS GV802025, 2026
GENESIS GV80 Coupe2025, 2026 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
26V0190002026-01-16. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
25V8330002025-12-01. ELECTRICAL SYSTEM:ADAS; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR
25V4740002025-07-17. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
24V8680002024-11-18. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY
24V2040002024-03-15. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V 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
26-01-077G TSB2026-10-09. Warranty extension. 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 TSB2026-10-09. Service bulletin. 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 DCS2026-09-26. Warranty extension. 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 TSB2026-09-26. Warranty extension. 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 TSB2026-09-26. Warranty extension. 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 TSB2026-09-11. Service campaign. 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 DCS2026-09-11. Service campaign. 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 TSB2026-08-11. Warranty extension. 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 TSB2026-08-11. Warranty extension. 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 DCS2026-08-11. Warranty extension. 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.