WenmarOpen by Wenmar Pro

Service bulletin UP-S-0615

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 id10043227
Published by NHTSA2012-03-06
Manufacturer's numberUP-S-0615
Manufacturer's date2007-12-13
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

BLUE BIRD: UPDATED BULLETIN FOR CERTAIN MODEL BUSES REGARDING TURBOCHARGER EXPERIENCING FAILURE DUE TO COMBINATION OF ENGINE AND TRANSMISSION DUTY CYCLE CHARACTERISTICS. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Transmission and driveline, Automatic transmission

Vehicles listed
BLUE BIRD EXCEL 1022008 to 2010

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