# Service bulletin L\-TT\-0144\-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.

- Type: Service bulletin
- NHTSA id: 10133744
- Published by NHTSA: 2018\-04\-23
- Manufacturer's number: L\-TT\-0144\-13
- Manufacturer's date: 2014\-03\-06
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Customers complain of Bluetooth connectivity concerns such as: difficulty to pair the phone. Intermittent Bluetooth failure to connect to the vehicle when first turning on the vehicle. 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 they have restore their phone data/settings recently.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10133744-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10133744-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2011 to 2014 LEXUS CT HYBRID
- 2007 to 2014 LEXUS ES350
- 2007 to 2011 LEXUS GS 350
- 2013 to 2014 LEXUS GS 350
- 2008 to 2011 LEXUS GS460
- 2010 to 2014 LEXUS GX460
- 2005 to 2009 LEXUS GX470
- 2010 to 2012 LEXUS HS 250 HYBRID
- 2006 to 2014 LEXUS IS 250
- 2010 to 2014 LEXUS IS 250C
- 2006 to 2014 LEXUS IS 350
- 2010 to 2014 LEXUS IS 350C
- 2008 to 2014 LEXUS IS F
- 2012 LEXUS LFA
- 2004 to 2006 LEXUS LS430
- 2007 to 2014 LEXUS LS460
- 2008 to 2014 LEXUS LS600H
- 2004 to 2007 LEXUS LX470
- 2008 to 2011 LEXUS LX570
- 2013 to 2014 LEXUS LX570
- 2006 to 2008 LEXUS RX HYBRID
- 2011 to 2014 LEXUS RX HYBRID
- 2007 to 2014 LEXUS RX350
- 2010 LEXUS RX450H
- 2005 to 2010 LEXUS SC430

## Other bulletins for the same vehicles and component

- [L\-SB\-0043\-23 Rev1](/bulletins/11020656.md), 2025-07-10, Service bulletin: ELECTRICAL SYSTEM. The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
- [LSB002514B](/bulletins/10205331.md), 2021-12-20, Service bulletin: ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Immobilizer and Smart Key Reset
- [LSB002514A](/bulletins/10205330.md), 2021-12-20, Service bulletin: EQUIPMENT:ELECTRICAL:ANTI\-THEFT DEVICES; ELECTRICAL SYSTEM:SOFTWARE. Immobilizer and Smart Key Reset
- [LSB002514](/bulletins/10205329.md), 2021-12-20, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Immobilizer and Smart Key Reset.
- [LSB002114](/bulletins/10205327.md), 2021-12-20, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Techstream ECU Flash Reprogramming Procedure.
- [KLG\_19LE05\-TI\-Up](/bulletins/10179782.md), 2020-09-14, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. TI: TECHNICAL INSTRUCTIONS FOR LIMITED SERVICE CAMPAIGN KLG CUSTOMER SUPPORT PROGRAM 19LE05 SAFETY CONNECT SYSTEM ? VEHICLE LOCATION INACCURATE
- [L\-TT\-0281\-20](/bulletins/10173793.md), 2020-04-13, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. 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\-SB\-0001\-18\-Rev](/bulletins/10164328.md), 2019-09-03, Service bulletin: EQUIPMENT; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. TSB: REVISION NOTICE July 01, 2019 Rev1: G1668 Applicability has been updated to include 2019 ? 2020 model year Lexus vehicles. G2158 The Techstream Preparation and Process Overview sections have been updated. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. L\-SB\-0021\-14. G1765 Applicability has been updated to include applicable 2018 models and 2016 ? 2018 model year RC 300 and 2015 ? 2018 model year RC 350 vehicles. ? Applicability has been updated to exclude 2001 ? 2003 model year ES 300 vehicles. Service Bulletin No. L\-SB\-0021\-14 is obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. Flash reprogramming allows the Electronic Control Unit \(ECU\) 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 the 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. NOTE ECU is a Lexus term used to describe integrated computerized devices responsible for managing the operation of a system or subsystem. For the purposes of this bulletin, the term ECU is used as a generic label for the following SAE J1930 standard references: ? Powertrain Control Module \(PCM\) ? Engine Control Module \(ECM\) ? Transmission Control Module \(TCM\) ? Any other Lexus\-specific control unit
- [L\-TT\-0221\-17\_Rev](/bulletins/10159696.md), 2019-05-13, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; STEERING: STEERING WHEEL/HANDLE BAR. 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\-15](/bulletins/10134167.md), 2018-04-23, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. 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.

JSON: [/v1/bulletins/10133744](/v1/bulletins/10133744)

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