Service bulletin M920023
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 | 11034098 |
| Published by NHTSA | 2026-06-26 |
| Manufacturer's number | M920023 |
| Manufacturer's date | 2026-04-01 |
| Campaign id or software version | M920023 |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
AC may not cool efficiently. Process walks dealer through how to install a direct dump feature to the AC system and add insulation in the front cab area.
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.
| GRAND DESIGN LINEAGE | 2025 to 2026 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.