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Service bulletin L-SB-0021-14

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 id10132777
Published by NHTSA2018-04-02
Manufacturer's numberL-SB-0021-14
Manufacturer's date2014-06-12
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

TSB: Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information.

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

Electrical system, Software

Vehicles listed
LEXUS CT HYBRID2011 to 2015
LEXUS ES HYBRID2013 to 2015
LEXUS ES3002001 to 2003
LEXUS ES3302004 to 2006
LEXUS ES3502007 to 2015
LEXUS GS 3502007 to 2015
LEXUS GS HYBRID2010
LEXUS GS HYBRID2013
LEXUS GS3002001 to 2006
LEXUS GS4302001 to 2007
LEXUS GS450H2007 to 2009
LEXUS GS450H2011 to 2012
LEXUS GS450H2014 to 2015
LEXUS GS4602008 to 2011
LEXUS GX4602010 to 2015
LEXUS GX4702003 to 2009
LEXUS HS 250 HYBRID2010 to 2012
LEXUS IS 2502006 to 2015
LEXUS IS 250C2010 to 2015
LEXUS IS 3002001 to 2005
LEXUS IS 3502006 to 2015
LEXUS IS 350C2010 to 2015
LEXUS IS F2008 to 2014
LEXUS LFA2012
LEXUS LS4302001 to 2006
LEXUS LS4602007 to 2015
LEXUS LS600H2008 to 2015
LEXUS LX4702001 to 2007
LEXUS LX5702008 to 2015
LEXUS RX HYBRID2006 to 2008
LEXUS RX HYBRID2011 to 2015
LEXUS RX3002001 to 2003
LEXUS RX3302004 to 2006
LEXUS RX3502007 to 2015
LEXUS RX450H2010
LEXUS SC4302002 to 2010

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
LSB002514A2021-12-20. Service bulletin. Immobilizer and Smart Key Reset
LSB0025142021-12-20. Service bulletin. Immobilizer and Smart Key Reset.
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L-TT-0221-17_Rev2019-05-13. Service bulletin. TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone. ? Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ? Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone or if they have restored their phone data/settings recently.
L-TT-0172-152018-04-23. Service bulletin. TT: Techstream Health Check Results screen shows "Yes" for a Telematics ECU (DCM) Calibration update regardless of whether a calibration update is available or not. The issue is related to the Techstream software and will be corrected in a future Techstream software release.
L-SB-0015-10 Rev2018-04-23. Service bulletin. Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprograming process and outlines use of the TIS and the CUW.
L-SB-0083-13 Rev2018-04-02. Service bulletin. TSB: OBSOLETE NOTICE October 5, 2016: This bulletin is now obsolete. Please see L-SB-0086-16.
L-TT-0172-152018-04-02. Service bulletin. TT: Techstream Health Check Results screen shows "Yes" for a Telematics ECU (DCM) Calibration update regardless of whether a calibration update is available or not. The issue is related to the Techstream software and will be corrected in a future Techstream software release.
L-TT-0121-132018-04-02. Service bulletin. 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.
L-TT-0221-172018-04-02. Service bulletin. This bulletin is regarding the Diagnosis of Bluetooth Connectivity Complaints: Some customers may encounter Bluetooth® connectivity concerns such as: Difficulty to pair the phone. Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone or if they have restored their phone data/settings recently.