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Service bulletin 23LJ01P4A

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 id10247826
Published by NHTSA2023-12-26
Manufacturer's number23LJ01P4A
Manufacturer's date2023-11-21
NHTSA componentELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER

NHTSA's summary

TI: TECHNICAL INSTRUCTIONS FOR 23LJ01 Second Key Delivery Program Multiple Models and Model Years

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, Ignition

Vehicles listed
LEXUS ES2023
LEXUS GX2023
LEXUS IS2023
LEXUS LC2023
LEXUS LS2023
LEXUS LX2023
LEXUS NX2022, 2023
LEXUS RX2023
LEXUS RZ2023
LEXUS UX2023

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
Lexus Second Key2024-04-15. Service bulletin. The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated over time as more details become available.
23LJ01_P5_Dealer2024-04-15. Service bulletin. DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affected vehicles were delivered with one (1) Smart Key and a second mechanical key.
Vehicle Eligibil2024-03-04. Service bulletin. The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch and as more details become available.
Dealer Packet pu2024-03-04. Service bulletin. DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affected vehicles were delivered with one (1) Smart Key and a second mechanical key.
23LJ01P5_TI_Publ2024-01-16. Service bulletin. TI: TECHNICAL INSTRUCTIONS FOR 23LJ01 Second Key Delivery Program Multiple Models and Model Years
23LJ01P5_RL_Publ2024-01-16. Service bulletin. RL: The supply of Smart Keys available for Lexus vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting certain microchips. Affected vehicles have been delivered with only one Smart Key and a second mechanical key.
23LJ01_P5_Dealer2024-01-16. Service bulletin. DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affected vehicles were delivered with one (1) Smart Key and a second mechanical key.
23LJ012023-12-26. Service bulletin. DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affected vehicles were delivered with one (1) Smart Key and a second mechanical key.
23LJ01P42023-12-26. Service bulletin. RL: The supply of Smart Keys available for Lexus vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting certain microchips. Affected vehicles have been delivered with only one Smart Key and a second mechanical key.
23LJ01_Dealer Pa2023-11-27. Service bulletin. DP: The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affected vehicles were delivered with one (1) Smart Key and a second mechanical key.