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Service bulletin SI-09-11

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 id10033444
Published by NHTSA2010-08-18
Manufacturer's numberSI-09-11
Manufacturer's date2009-08-03
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

ECOMAT TRANSMISSION: INSPECTION OF THE SOLENOID VALVE ON THE RETARDER ACCUMULATOR IN ECOMAT TRANSMISSION. ECOMAT TYPE ARE EQUIPPED WITH A SOLENOID VALVE ON THE RETARDER ACCUMULATOR. THERE ARE OCCASIONAL AIR LEAKS ON THESE VALVES, WHICH IS NOTICEABLE BY A HISSING SOUND (ESCAPING AIR) ON VALVE. MODELS 4149, 4180, 4182 AND 4185. NO MODEL YEARS LISTED.

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

Vehicles listed
UNKNOWN UNKNOWN

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