# Service bulletin 26\-01\-078G 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 bulletin
- NHTSA id: 11038419
- Published by NHTSA: 2026\-10\-09
- Manufacturer's number: 26\-01\-078G TSB
- Manufacturer's date: 2026\-10\-02
- Campaign id or software version: L14G
- NHTSA component: ELECTRICAL SYSTEM; SERVICE BRAKES

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11038419-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11038419-9999.pdf)

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

## Components

Brakes, Electrical system

## Trouble codes named

U151A, U151B

## Vehicles listed

- 2026 GENESIS GV60

## 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\-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\-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.

JSON: [/v1/bulletins/11038419](/v1/bulletins/11038419)

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