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Service bulletin 511880B

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11012976
Published by NHTSA2025-01-20
Manufacturer's number511880B
Manufacturer's date2025-01-20
Campaign id or software version511880B
NHTSA componentPOWER TRAIN

NHTSA's summary

According to Ford Customer Satisfaction Notice 24N09: "The transmission may exhibit increased transmission gear noise, which could progress to a loss of transmission torque resulting in vehicle speed limitation and inability to shift to reverse."

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

Transmission and driveline

Vehicles listed
FOREST RIVER BUS FOREST RIVER VAN2024

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