Service bulletin PIT6474
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 | 11027881 |
| Published by NHTSA | 2026-01-30 |
| Manufacturer's number | PIT6474 |
| Manufacturer's date | 2026-01-22 |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
This PI addresses an issue where the customer may experience a loss of brake assist, accompanied by numerous MILs and warnings, after the engine has restarted following a stop/start event, caused by a drop in battery voltage tot he Brake System Control module. Dealers are to test the vehicle battery and update the Brake System control module with updated software.
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 SILVERADO 1500 | 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| GMC SIERRA 1500 | 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.