Service bulletin 24B39

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.

NHTSA's summary

Certain 2020-2024 Model Year Transit All-Wheel-Drive (AWD) Vehicles All-Wheel-Drive Module (AWDM) Software Update. Warranty part analysis and bench testing has shown that thrust bearing damage can occur as a result of repeated high-torque launches consistent with severe-duty package delivery applications. Over time, fatigue failure of the thrust bearing can create loose metal debris in the system and distribute it throughout the transfer case, damaging other internal components and affecting vehicle performance.

The document

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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.

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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