Service bulletin PIT6339A
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 | 11031716 |
| Published by NHTSA | 2026-04-29 |
| Manufacturer's number | PIT6339A |
| Manufacturer's date | 2026-04-20 |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
This Preliminary information communicates to the field on how to diagnosis Supercruise Unavailable and Driver Attention Assist Unavailable and Drowsy Driver Feature Disabled message.
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.
| CADILLAC ESCALADE | 2025 |
|---|---|
| CADILLAC ESCALADE ESV | 2025 |
| CADILLAC OPTIQ | 2025 |
| CHEVROLET SUBURBAN 1500 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE | 2025 |
| GMC YUKON | 2025 |
| GMC YUKON XL | 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.