# Service bulletin L\-TT\-0263\-19

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: 10162759
- Published by NHTSA: 2019\-07\-15
- Manufacturer's number: L\-TT\-0263\-19
- Manufacturer's date: 2019\-06\-25
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

TT: The new 12V Battery Warranty Testers \(DSS\-5000 \& DCA\-8000\) require certain information to generate a test result and warranty code. Below is an explanation of what information is required when testing a 12V battery on the new Warranty Battery Testers.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10162759-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10162759-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2017 to 2018 LEXUS CT HYBRID
- 2017 to 2020 LEXUS ES HYBRID
- 2017 LEXUS GS 200T
- 2017 to 2020 LEXUS GS 350
- 2017 to 2020 LEXUS GS F
- 2017 to 2019 LEXUS GS HYBRID
- 2017 to 2020 LEXUS GX460
- 2017 LEXUS IS 250
- 2017 to 2020 LEXUS IS 350
- 2017 LEXUS IS200T
- 2018 to 2020 LEXUS LC HYBRID
- 2018 to 2020 LEXUS LC500
- 2018 LEXUS LS
- 2018 to 2020 LEXUS LS HYBRID
- 2017 LEXUS LS460
- 2018 to 2020 LEXUS LS500
- 2017 to 2020 LEXUS LX570
- 2017 to 2020 LEXUS NX HYBRID
- 2017 LEXUS NX200T
- 2018 to 2020 LEXUS NX300
- 2017 LEXUS RC 200T
- 2017 to 2020 LEXUS RC 300
- 2017 to 2020 LEXUS RC 350
- 2017 to 2020 LEXUS RC F
- 2017 to 2020 LEXUS RX HYBRID
- 2019 to 2020 LEXUS UX HYBRID
- 2019 to 2020 LEXUS UX200

## Other bulletins for the same vehicles and component

- [L\-SB\-0057\-22 Rev2](/bulletins/11029870.md), 2026-03-07, Service bulletin: ELECTRICAL SYSTEM. OBSOLETE NOTICE February 2, 2026: This bulletin is now obsolete. Please see L\-SB\-0004\-26.
- [L\-SB\-0004\-26](/bulletins/11028717.md), 2026-02-11, Service bulletin: ELECTRICAL SYSTEM. Some 2018 – 2025 model year Lexus vehicles equipped with the Enform™ 2.0 Navigation System, require a Special Service Tool \(SST\) USB flash drive to update the map, points of interest, and system software.
- [L\-TT\-0326\-23 Rev2](/bulletins/11022963.md), 2025-09-09, Service bulletin: ELECTRICAL SYSTEM. Some customers may experience operational difficulties with some telematics features which they cannot resolve on their own. These resources, in conjunction with the Repair Manual, are for dealership personnel to assist those customers with user issues, user errors, and compatibility issues with other vehicle systems and external applications encountered while operating telematics features.
- [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.
- [L\-TT\-0341\-25](/bulletins/11019329.md), 2025-06-06, Service bulletin: ELECTRICAL SYSTEM. To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
- [L\-TT\-0341\-25](/bulletins/11018326.md), 2025-05-15, Service bulletin: ELECTRICAL SYSTEM. To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
- [L\-SB\-0013\-24 Rev1](/bulletins/11016780.md), 2025-04-08, Service bulletin: ELECTRICAL SYSTEM. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.
- [L\-SB\-0013\-24 Rev1](/bulletins/11015494.md), 2025-03-11, Service bulletin: ELECTRICAL SYSTEM. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.
- [L\-SB\-0057\-22 Rev2](/bulletins/11014181.md), 2025-02-12, Service bulletin: ELECTRICAL SYSTEM. Some 2018 – 2025 model year Lexus vehicles equipped with the Enform™ 2.0 Navigation System, require a Special Service Tool \(SST\) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update, however, the process for generating license keys differs from previous generations.
- [LSB005523](/bulletins/10247795.md), 2023-12-26, Service bulletin: ELECTRICAL SYSTEM. TSB: Some 2018 ? 2024 model year Lexus vehicles may exhibit a hybrid system warning lamp occurring in below\-freezing temperatures \(below 32°F or 0°C\). After performing a Health Check, one or both of the following Diagnostic Trouble Codes \(DTCs\) may be present: ?P1C8449 ? \(High Voltage Power Resource Circuit Short during Ready ON\) ?P300449 ? \(High Voltage Power Resource Circuit Short during Pre\-Charge\) Follow the Repair Procedure in this bulletin to address this condition.

JSON: [/v1/bulletins/10162759](/v1/bulletins/10162759)

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