# Service bulletin PIT6129B

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: 11018426
- Published by NHTSA: 2025\-05\-19
- Manufacturer's number: PIT6129B
- Manufacturer's date: 2025\-05\-05
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This Preliminary information communicates a program has been released to fix DTCs U2BF2, U2BF3, and/or U2BF6.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018426-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018426-9999.pdf)

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

## Trouble codes named

U2BF2, U2BF3, U2BF6

## Vehicles listed

- 2024 BRIGHTDROP ZEVO 400
- 2023 to 2024 BRIGHTDROP ZEVO 600
- 2024 CHEVROLET SILVERADO EV
- 2022 to 2024 GMC HUMMER EV PICKUP

JSON: [/v1/bulletins/11018426](/v1/bulletins/11018426)

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