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Service bulletin L-SB-0038-18-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 id10152563
Published by NHTSA2019-01-07
Manufacturer's numberL-SB-0038-18-Rev
Manufacturer's date2018-11-28
NHTSA componentSEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER

NHTSA's summary

TSB: REVISION NOTICE November 28, 2018 Rev1: ? The Warranty Information section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2016 ? 2019 model year RX350 and RX450h vehicles may exhibit a condition where there is a noticeable seat heater temperature difference between the driver and/or passenger seats. Follow the Repair Procedure in this bulletin 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 LS HYBRID2018 to 2019
LEXUS RX3502016 to 2019

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