# Service bulletin PIT6473B

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: 11030097
- Published by NHTSA: 2026\-03\-17
- Manufacturer's number: PIT6473B
- Manufacturer's date: 2026\-03\-09
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This Preliminary Information communicates direction for different audio issues with RPO UQA, UQF, UQS, or NKD

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11030097-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11030097-9999.pdf)

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

## Vehicles listed

- 2019 to 2026 CHEVROLET SILVERADO 1500
- 2020 to 2026 CHEVROLET SILVERADO 2500
- 2020 to 2026 CHEVROLET SILVERADO 3500
- 2020 to 2026 GMC SIERRA 1500
- 2020 to 2026 GMC SIERRA 2500
- 2020 to 2026 GMC SIERRA 3500

JSON: [/v1/bulletins/11030097](/v1/bulletins/11030097)

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