WenmarOpen by Wenmar Pro

Service bulletin L-TT-0121-13

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 id10131963
Published by NHTSA2018-04-02
Manufacturer's numberL-TT-0121-13
Manufacturer's date2013-01-02
NHTSA componentEQUIPMENT

NHTSA's summary

MY 2013 Gen 7 navigation systems use a USB SST to update the firmware and map. MY 2014 IS and GX models incorporate a Gen 8 navigation system that uses a USB stick to update the firmware ONLY. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.

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 CT HYBRID2011 to 2014
LEXUS ES HYBRID2013 to 2014
LEXUS ES3502010 to 2014
LEXUS GS 3502010 to 2011
LEXUS GS 3502013 to 2014
LEXUS GS HYBRID2010 to 2011
LEXUS GS HYBRID2013 to 2014
LEXUS GS450H2011
LEXUS GS450H2014
LEXUS GS4602010 to 2011
LEXUS GX4602010 to 2014
LEXUS HS2010, 2011, 2012
LEXUS IS 2502010 to 2014
LEXUS IS 250C2010 to 2014
LEXUS IS 350C2010 to 2014
LEXUS IS F2010 to 2014
LEXUS LS4602010 to 2014
LEXUS LS600H2010 to 2014
LEXUS LX5702010 to 2011
LEXUS LX5702013
LEXUS RX3502010 to 2014

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

Other bulletins for the same vehicles and component
Safety Recall 222022-06-21. Service bulletin. Lexus Safety Recall and Service Campaign - Technician Certification Requirements 4.13.2022
Lexus PRO19-02 -2022-02-14. Service bulletin. POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground and spare tires currently in use by Lexus. This information must be kept near the point of vehicle sale and be available to any customer that requests it. Customers can find this information on the Owner?s section of Lexus.com. Dealers can locate a copy of this guide on the Claims Processing & Resource Center in Dealer Daily as well.
KLG_19LE05-TI-Up2020-09-14. Service bulletin. TI: TECHNICAL INSTRUCTIONS FOR LIMITED SERVICE CAMPAIGN KLG CUSTOMER SUPPORT PROGRAM 19LE05 SAFETY CONNECT SYSTEM ? VEHICLE LOCATION INACCURATE
Lexus Safety Re2020-06-15. Service bulletin. Safety Recall and Service Campaign - Technician Certification Requirements
L-TT-0235-17_Rev2019-01-07. Service bulletin. TT: HVAC drain tube is found to blocked/clogged.
L-SB-0022-142018-04-02. Service bulletin. TSB: Some 2010 ? 2013 model year vehicles equipped with Generation 6 navigation that have been updated using the 13.1 map data may exhibit a missing character data (street/city names, freeway shields, and landmark icons) condition. A new master DVD set is now available to update the Navigation Update Tool. Customers using 13.1 version 13.09.10 map data may notice missing character data in certain geographical areas.
L-TT-0218-17_Rev2018-04-02. Service bulletin. TT: This bulletin is regarding best practices when handling navigation systems that use Hard Disc Drive or Micro SD Card memory. 1. First type is generation 6 or 7 which utilizes HDD (Hard Disc Drive). Pioneer models that begin with NXH, have Map Data, Operating System and other Information in the Hard Disc Drive. With this system if a radio is being sent back for an exchange. The original Hard Disc Drive needs to be removed and installed into the newly serviced radio. 2. The Second type is Generation 8 Navigation system which utilizes the Micro SD Card. Pioneer models that begin with NXF, have map data in the Micro SD card. This is a customer accessible Micro SD card which can be found behind the front flip cover. The original Micro SD card should be removed and installed into the newly serviced radio.
ZLI_Lexus POL17-2018-04-02. Service bulletin. Warranty Policy Bulletin: Lexus has received reports of customer concerns in which their vehicle?s halogen low beam headlamp bulbs lifetime is shorter than expected.
L-SB-0171-17_Rev2018-03-12. Service bulletin. TSB: REVISION NOTICE ? The Required Tools & Equipment and Repair Procedure sections have been updated. Any previous printed versions of this bulletin should be discarded. Some 2010 ? 2012 model year HS 250h vehicles may exhibit a condition where a halogen low beam headlamp bulb lifetime is shorter than customer expectation. A modified wiring harness is available to address this condition.