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Service bulletin L-SB-0044-11 Rev

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 id10109500
Published by NHTSA2017-08-01
Manufacturer's numberL-SB-0044-11 Rev
Manufacturer's date2014-09-18
NHTSA componentSEATS

NHTSA's summary

TSB: Some 2010 - 2014 model year IS 250C and IS 350C vehicles may exhibit a groan noise during front seat back adjustment. This condition may be present on both front seats. A revised seat adjuster assembly has been developed to address this condition.

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

Seats

Vehicles listed
LEXUS IS 250C2010 to 2014
LEXUS IS 350C2010 to 2014

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