Service bulletin 167-T2508-1
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 | 11021273 |
| Published by NHTSA | 2025-08-04 |
| Manufacturer's number | 167-T2508-1 |
| Manufacturer's date | 2025-07-17 |
| Campaign id or software version | TT-25-008 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
Subject vehicles may experience the air conditioning not cooling at idle, and note that the engines cooling fan does not engage with high A/C pressures. This is related to the Air Conditioning Pressure Switch being disabled in the Cummins Engine ECU.
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.
Components
Electrical system
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Listing a model year does not mean every vehicle of it is concerned: the document says which.