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Service bulletin 120101

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 id618172
Published by NHTSA2001-04-06
Manufacturer's number120101
Manufacturer's date2001-01-12
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

SUBJECT REGARDING 4T65E AUTOMATIC TRANSMISSIONS EXHIBITING DIAGNOSTIC TROUBLE CODES P0741 AND / OR P0742. *TT

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

Transmission and driveline, Automatic transmission

Trouble codes named

P0741, P0742

Vehicles listed
CHEVROLET CHEVROLET2001
GMC GMC2001

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