Service bulletins for the 2023 Toyota Sequoia
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.
111 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Electrical system are shown. Show all
| 26TC02 | 2026-07-08. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 26TC02 REPROGRAMMING FOR PARKING ASSIST ECU CERTAIN 2023 - 2024 SEQUOIA |
|---|---|
| 26TC02 | 2026-04-08. Service campaign. ELECTRICAL SYSTEM. SPECIAL SERVICE CAMPAIGN 26TC02 Certain 2023-2024 Model Year Sequoia HV Certain 2022 – 2023 Model Year Tundra & Tundra HV Trailer Back Up Guide Feature Inoperative Frequently Asked Questions |
| 26TC02 | 2026-04-08. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 26TC02 REPROGRAMMING FOR PARKING ASSIST ECU CERTAIN 2023 - 2024 SEQUOIA |
| 26TC02 | 2026-04-08. Service campaign. ELECTRICAL SYSTEM. After calibrating a trailer and using the Trailer Backup Guide feature, subsequent use of this feature may result in a “Trailer not detected” message or a blank multimedia display that prevents the display of features such as the backup camera. The multimedia system returns to normal if the vehicle is turned off and on again with no trailer attached. |
| T-SB-0083-25 | 2025-12-05. Service bulletin. ELECTRICAL SYSTEM. A new head unit software update is available for 2022 – 2025 model year Tundra, and Tundra Hybrid; 2023 – 2025 model year Corolla Cross, Corolla Cross Hybrid, Highlander, Highlander Hybrid, Mirai, and Sequoia Hybrid vehicles equipped with Toyota Multimedia versions earlier than version 2230. |
| T-TT-0779-25 | 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. |
| T-TT-0779-25 | 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. |
| T-SB-0053-24 Rev1 | 2025-04-08. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Some 2023 – 2024 model year Sequoia Hybrid and 2022 – 2024 Tundra and Tundra Hybrid vehicles may exhibit a condition where the functionality of the power driver seat cushion length adjustment (CLA) is inoperative. This condition may occur when operating the control switch with the CLA in the closed position. |
| T-SB-0013-24 Rev1 | 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. |
| T-SB-0053-24 Rev1 | 2025-03-11. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Some 2023 – 2024 model year Sequoia Hybrid and 2022 – 2024 Tundra and Tundra Hybrid vehicles may exhibit a condition where the functionality of the power driver seat cushion length adjustment (CLA) is inoperative. This condition may occur when operating the control switch with the CLA in the closed position. |
| T-SB-0013-24 Rev1 | 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. |
| T-SB-0120-20 Rev2 | 2025-02-12. Service bulletin. ELECTRICAL SYSTEM. OBSOLETE NOTICE January 30, 2025: This bulletin is now obsolete. Please see T-SB-0015-25. |
| T-SB-0015-25 | 2025-02-12. Service bulletin. ELECTRICAL SYSTEM. Some 2021 – 2025 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit (ECU) is replaced. GTS+ software has been modified to indicate when configuration software is required. A new Configure column has been added to the GTS+ Health Check Results screen to show when configuration software is available for a specific ECU. |
| T-SB-0111-20 Rev2 | 2025-02-12. Service bulletin. ELECTRICAL SYSTEM. OBSOLETE NOTICE January 23, 2025: This bulletin is now obsolete. Please see T-SB-0011-25. |
| T-SB-0011-25 | 2025-02-12. Service bulletin. ELECTRICAL SYSTEM. When certain vehicle ECUs are replaced, the ECU Security Key must be written in order for that ECU to communicate on the vehicle network. The GTS+ Software Health Check Results screen has been enhanced to help identify if a replacement ECU requires an ECU Security Key. |
| T-SB-0100-24 | 2024-11-08. Service bulletin. ELECTRICAL SYSTEM. Some 2022 – 2024 model year Tundra and Tundra Hybrid, 2023 – 2024 model year Sequoia Hybrid, and 2024 model year Tacoma and Tacoma Hybrid vehicles equipped with a premium 14-inch audio multimedia display may exhibit a condition where the radio receiver power/volume knob becomes detached. An updated radio receiver power/volume knob is available to reduce the possibility of this condition. |
| T-SB-0026-24 Rev1 | 2024-09-07. Service bulletin. ELECTRICAL SYSTEM. Some 2022 – 2024 model year Tundra and Tundra Hybrid, and 2023 – 2024 model year Sequoia Hybrid vehicles, equipped with a JBL® premium sound system, may exhibit a rattle or buzz noise when listening to music coming from the subwoofer located in the rear left luggage area of the vehicle. This can be caused by exposure to certain operating environments with high humidity levels. To improve the subwoofer's performance in humid environments, Toyota has revised the speaker cone material and shape. The condition can be resolved by replacing the subwoofer assembly with box. |
| T-SB-0026-24 Rev1 | 2024-08-08. Service bulletin. ELECTRICAL SYSTEM. Some 2022 – 2024 model year Tundra and Tundra Hybrid, and 2023 – 2024 model year Sequoia Hybrid vehicles, equipped with a JBL® premium sound system, may exhibit a rattle or buzz noise when listening to music coming from the subwoofer located in the rear left luggage area of the vehicle. This can be caused by exposure to certain operating environments with high humidity levels. To improve the subwoofer's performance in humid environments, Toyota has revised the speaker cone material and shape. The condition can be resolved by replacing the subwoofer assembly with box. |
| T-SB-0012-24 Rev1 | 2024-07-23. Over-the-air update. ELECTRICAL SYSTEM. A head unit software update is now available for 2022 model year Tundra and Tundra Hybrid vehicles equipped with Toyota Multimedia (version 1020 or earlier). This software update provides improved performance and capability for the following: •User Profile configuration and display. •Cloud Navigation and Intelligent Voice Assistant. •Mobile device connectivity. •On-screen display and system settings/configuration. •Security enhancements. A head unit software update is now available for 2022 model year Tundra and Tundra Hybrid vehicles equipped with Toyota Multimedia (earlier than version 1040). This software update includes the following improvements: •Cloud navigation. •Intelligent assistant voice recognition. •Showing and controlling explicit audio content. •User interface. •Bluetooth®. •Bug fixes. This software update removes the following feature: •Hybrid radio. A head unit software update is now available for 2023 model year Sequoia Hybrid, Tundra, and Tundra Hybrid, vehicles equipped with Toyota Multimedia (version 1040 or earlier). This software update provides improved performance and capability for the following: •User Profile. •Over-the-air (OTA) notifications. •Ability to search during a call. •Bug fixes settings/configuration. •Security enhancements. A head unit software update is now available for 2023 – 2024 Sequoia Hybrid, and 2022 – 2024 model year Tundra and Tundra Hybrid vehicles equipped with Toyota Multimedia (earlier than version 2050). This software update includes the following improvements: •User interface design. •Intelligent assistant. •Navigation lane guidance. •Phone book search. •Bug fixes. A head unit software update is now available for 2023 – 2024 Sequoia Hybrid, and 2022 – 2024 model year Tundra and Tundra Hybrid vehicles equipped with Toyota Multimedia (earlier than version 2170). This software update includes the following improvements: •User Profile. •User interface. •Cloud navigation. •Intelligent assistant voice recognition. •Bug fixes. |
| T-SB-0012-24 Rev1 | 2024-07-23. Over-the-air update. ELECTRICAL SYSTEM. A head unit software update is now available for 2022 model year Tundra and Tundra Hybrid vehicles equipped with Toyota Multimedia (version 1020 or earlier). This software update provides improved performance and capability for the following: •User Profile configuration and display. •Cloud Navigation and Intelligent Voice Assistant. •Mobile device connectivity. •On-screen display and system settings/configuration. •Security enhancements. A head unit software update is now available for 2022 model year Tundra and Tundra Hybrid vehicles equipped with Toyota Multimedia (earlier than version 1040). This software update includes the following improvements: •Cloud navigation. •Intelligent assistant voice recognition. •Showing and controlling explicit audio content. •User interface. •Bluetooth®. •Bug fixes. This software update removes the following feature: •Hybrid radio. A head unit software update is now available for 2023 model year Sequoia Hybrid, Tundra, and Tundra Hybrid, vehicles equipped with Toyota Multimedia (version 1040 or earlier). This software update provides improved performance and capability for the following: •User Profile. •Over-the-air (OTA) notifications. •Ability to search during a call. •Bug fixes settings/configuration. •Security enhancements. A head unit software update is now available for 2023 – 2024 Sequoia Hybrid, and 2022 – 2024 model year Tundra and Tundra Hybrid vehicles equipped with Toyota Multimedia (earlier than version 2050). This software update includes the following improvements: •User interface design. •Intelligent assistant. •Navigation lane guidance. •Phone book search. •Bug fixes. A head unit software update is now available for 2023 – 2024 Sequoia Hybrid, and 2022 – 2024 model year Tundra and Tundra Hybrid vehicles equipped with Toyota Multimedia (earlier than version 2170). This software update includes the following improvements: •User Profile. •User interface. •Cloud navigation. •Intelligent assistant voice recognition. •Bug fixes. |
| T-SB-0120-20 Rev2 | 2024-07-06. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Some 2021 – 2024 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit (ECU) is replaced. GTS+ software has been modified to indicate when configuration software is required. A new Configure column has been added to the GTS+ Health Check Results screen to show when configuration software is available for a specific ECU. REVISION NOTICE April 18, 2024 Rev2: •Applicability has been updated to include 2024 model year Tundra, Tundra Hybrid, Venza Hybrid, bZ4X, Corolla, Corolla Cross, Corolla Cross Hybrid, Corolla Hybrid, Crown, GR Corolla, Corolla Hatchback, Prius, Prius Prime, Sequoia Hybrid, Highlander, Grand Highlander, Grand Highlander Hybrid, Land Cruiser, Tacoma, Tacoma Hybrid, and Mirai vehicles and 2023 model year Corolla Hatchback and Prius Prime vehicles. •The Introduction section has been updated. •The Operation Procedure section has been removed. •The Standard ECU Configuration Procedure and ECU Configuration Value Writing Procedure sections have been added. |
| T-SB-0111-20 Rev2 | 2024-07-06. Service bulletin. ELECTRICAL SYSTEM. When certain vehicle ECUs are replaced, the ECU Security Key must be written in order for that ECU to communicate on the vehicle network. The GTS+ Software Health Check Results screen has been enhanced to help identify if a replacement ECU requires an ECU Security Key. REVISION NOTICE April 11, 2024 Rev2: •Applicability has been updated to include 2023 – 2024 model year 86, Corolla, Corolla Cross, Corolla Cross Hybrid, Crown, GR Corolla, Mirai, Prius, Prius Prime, RAV4 Prime, Sequoia Hybrid, Sienna Hybrid, Tundra, Tundra Hybrid, Venza Hybrid, and Yaris and 2024 model year bZ4X, Highlander, Highlander Hybrid, Grand Highlander, and Grand Highlander Hybrid vehicles. •The entire bulletin has been updated to represent GTS+ Software. July 08, 2022 Rev1: •Applicability has been updated to include 2022 model year 86, Corolla Cross, Mirai, Tundra, and Tundra Hybrid vehicles and 2023 model year bZ4X vehicles. Any previous printed versions of this bulletin should be discarded. |
| T-SB-0026-24 | 2024-07-06. Service bulletin. ELECTRICAL SYSTEM. Some 2022 2024 model year Tundra, Tundra Hybrid, and 2023 2024 model year Sequoia Hybrid vehicles, equipped with a JBL® premium sound system, may exhibit a rattle or buzz noise when listening to music coming from the subwoofer located in the rear left luggage area of the vehicle. This can be caused by exposure to certain operating environments with high humidity levels. To improve the subwoofer's performance in humid environments, Toyota has revised the speaker cone material and shape. The condition can be resolved by replacing the subwoofer assembly with box. |
| T-TT-0754-24 | 2024-07-06. Service bulletin. ELECTRICAL SYSTEM. Customers have expressed concerns about the performance of Qi Wireless Chargers. Wireless chargers on applicable vehicles are designed to work with Qi Certified devices only. MagSafe devices, that are not Qi Certified, may not charge as expected with Qi Wireless Chargers. |
| T-TT-0751-24 | 2024-07-06. Service bulletin. ELECTRICAL SYSTEM. Some customers have complained that the wireless functions of their Key Fob stop working. Key Fob LEDs will not turn ON, but engine starts with key held up against start button. Key battery voltage is confirmed OK and no DTC/RoB is found. This condition may occur if customer places Key Fob near wireless charger while phone is charging. When the key battery is removed and reinstalled, the Key Fob begins to operate normally. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.