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Service bulletin 120730001Da

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 id10245781
Published by NHTSA2023-12-04
Manufacturer's number120730001Da
Manufacturer's date2014-06-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

Information for Service Agents Not Required to Contact Product Quality Center (PQC)

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, Automatic transmission

Vehicles listed
GMC G VAN BUS2010 to 2011

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