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
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.
| CHEVROLET SUBURBAN | 2024 |
|---|---|
| CHEVROLET SUBURBAN 1500 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE | 2024, 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.