# Service bulletin PIT6412

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: 11020884
- Published by NHTSA: 2025\-07\-24
- Manufacturer's number: PIT6412
- Manufacturer's date: 2025\-07\-18
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This Preliminary information communicates that vehicles with RPO BVZ may have tap/rattle/tick/flutter noise from assist steps, and a procedure to eliminate the noise.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020884-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020884-9999.pdf)

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

## Vehicles listed

- 2024 CHEVROLET SUBURBAN
- 2025 CHEVROLET SUBURBAN 1500
- 2024 to 2025 CHEVROLET TAHOE

JSON: [/v1/bulletins/11020884](/v1/bulletins/11020884)

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