Service bulletins for the 2021 Lexus RX
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.
44 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Electrical system are shown. Show all
| L-SB-0057-22 Rev2 | 2026-03-07. Service bulletin. ELECTRICAL SYSTEM. OBSOLETE NOTICE February 2, 2026: This bulletin is now obsolete. Please see L-SB-0004-26. |
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| L-SB-0004-26 | 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 | 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 | 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 | 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 | 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-0057-22 Rev2 | 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. |
| 22LC01 Technical | 2023-11-27. Service bulletin. ELECTRICAL SYSTEM. TI: TECHNICAL INSTRUCTIONS FOR 22LC01 DATA COMMUNICATION MODULE (DCM) REPROGRAMMING CERTAIN 2021 MODEL YEAR IS300, IS350, LC500, LC500h, LC500C, LS500, LS500h, NX300, NX300h, RC300, RC350, RC F CERTAIN 2021-2022 RX350, RX350L, RX450h, RX450hL CERTAIN 2022 GX460 |
| Service Campaign | 2022-09-15. Service bulletin. ELECTRICAL SYSTEM. DP: Due to improper programming of the Data Communication Module (DCM), which provides cellular communication in various situations, including emergencies, the driver and Safety Connect operator may not be able to hear each other?s voices during a Safety Connect call |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.