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Service bulletin L-TT-0305-21

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 id10204572
Published by NHTSA2021-12-13
Manufacturer's numberL-TT-0305-21
Manufacturer's date2021-11-24
NHTSA componentEQUIPMENT:ELECTRICAL

NHTSA's summary

TT: After replacing the head unit on 2022MY NX and NX Hybrid vehicles, the head unit must have the VIN synchronized with the cloud to prevent the server from blacklisting the new head unit. Please follow the recommendations below to properly perform the VIN synchronization.

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

Equipment and accessories

Vehicles listed
LEXUS NX2502022
LEXUS NX3502022
LEXUS NX350H2022
LEXUS NX450H+2022

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