Service bulletin PIC6593A
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 | 11016992 |
| Published by NHTSA | 2025-04-15 |
| Manufacturer's number | PIC6593A |
| Manufacturer's date | 2025-04-12 |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
This Preliminary information communicates to the technician what to do when they encounter a service charging system message with a DTC P0621.
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.
Trouble codes named
P0621
| BUICK ENCORE GX | 2024, 2025 |
|---|---|
| CHEVROLET TRAILBLAZER | 2024, 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.