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Service bulletins for the 2023 Toyota GR COROLLA

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.

64 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
T-SB-0058-23 Rev12025-07-10. Service campaign. 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.
T-TT-0779-252025-06-06. 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-0779-252025-05-15. 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-0013-24 Rev12025-04-08. 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-0013-24 Rev12025-03-11. 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 Rev22025-02-12. Service bulletin. ELECTRICAL SYSTEM. OBSOLETE NOTICE January 30, 2025: This bulletin is now obsolete. Please see T-SB-0015-25.
T-SB-0015-252025-02-12. 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 Rev22025-02-12. Service bulletin. ELECTRICAL SYSTEM. OBSOLETE NOTICE January 23, 2025: This bulletin is now obsolete. Please see T-SB-0011-25.
T-SB-0011-252025-02-12. 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-0062-24 Rev12024-11-08. Service bulletin. ELECTRICAL SYSTEM. Some 2023 model year RAV4 Prime vehicles with Data Communication Module (DCM) firmware version earlier than LG-N210hh1V1V-09 may exhibit a condition in which the remote climate system is inoperative after the vehicle has been off for three hours or more. Some 2023 model year Corolla, Corolla Cross, Corolla Cross Hybrid, Corolla Hatchback, Corolla Hybrid, Crown, GR Corolla, Highlander, Highlander Hybrid, Prius, Prius Prime, RAV4, RAV4 Hybrid, RAV4 Prime, and Venza Hybrid vehicles and 2024 model year Grand Highlander and Grand Highlander Hybrid vehicles with DCM firmware versions earlier than LG-N210jj3333-09, LG-N210nn1212-09, LG-N310kk4646-0I, LG-N310ll4A4A-0I, LG-N310mm8A8A-0I, LG-N310nnBLBM-0I, or LG-N310oo1B1B-0I may exhibit a condition in which remote services are inoperative. Some 2023 model year Corolla, Corolla Cross, Corolla Cross Hybrid, Highlander, and Highlander Hybrid vehicles, 2023 – 2024 model year Corolla Hybrid, GR Corolla, Prius, Prius Prime, RAV4, RAV4 Hybrid, RAV4 Prime, and Venza Hybrid vehicles, 2024 model year Grand Highlander, Grand Highlander Hybrid, and Land Cruiser vehicles; 2023 – 2025 Corolla Hatchback and Crown vehicles, and 2025 Crown Signia vehicles with DCM firmware versions earlier than LG-N210qq####-## or LG-N310qq####-## may exhibit a condition in which Apple Music® or Amazon Music streaming and/or remote services are inoperative. A DCM firmware update is now available.
T-SB-0027-24 Rev12024-09-07. Service bulletin. ELECTRICAL SYSTEM. OBSOLETE NOTICE July 18, 2024: This bulletin is now obsolete. Please see T-SB-0062-24.
T-SB-0062-242024-09-07. Service bulletin. ELECTRICAL SYSTEM. Some 2023 model year RAV4 Prime vehicles with Data Communication Module (DCM) firmware version earlier than LG-N210hh1V1V-09 may exhibit a condition in which the remote climate system is inoperative after the vehicle has been off for three hours or more. Some 2023 model year Corolla, Corolla Cross, Corolla Cross Hybrid, Corolla Hatchback, Corolla Hybrid, Crown, GR Corolla, Highlander, Highlander Hybrid, Prius, Prius Prime, RAV4, RAV4 Hybrid, RAV4 Prime, and Venza Hybrid vehicles and 2024 model year Grand Highlander, and Grand Highlander Hybrid vehicles with previous versions of DCM firmware (see Table 1 below) may exhibit a condition in which remote services are inoperative. A DCM firmware update is now available to address this condition.
T-SB-0027-24 Rev12024-08-08. Service bulletin. ELECTRICAL SYSTEM. OBSOLETE NOTICE July 18, 2024: This bulletin is now obsolete. Please see T-SB-0062-24.
T-SB-0062-242024-08-08. Service bulletin. ELECTRICAL SYSTEM. Some 2023 model year RAV4 Prime vehicles with Data Communication Module (DCM) firmware version earlier than LG-N210hh1V1V-09 may exhibit a condition in which the remote climate system is inoperative after the vehicle has been off for three hours or more. Some 2023 model year Corolla, Corolla Cross, Corolla Cross Hybrid, Corolla Hatchback, Corolla Hybrid, Crown, GR Corolla, Highlander, Highlander Hybrid, Prius, Prius Prime, RAV4, RAV4 Hybrid, RAV4 Prime, and Venza Hybrid vehicles and 2024 model year Grand Highlander, and Grand Highlander Hybrid vehicles with previous versions of DCM firmware (see Table 1 below) may exhibit a condition in which remote services are inoperative. A DCM firmware update is now available to address this condition.
24TC032024-07-23. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 24TC03 DATA COMMUNICATON MODULE (DCM) UPDATE CERTAIN 2023 COROLLA, COROLLA CROSS, COROLLA HATCHBACK, COROLLA HV, GR COROLLA, CROWN, HIGHLANDER, HIGHLANDER HV, PRIUS, RAV4, RAV4 PRIME, RAV4 HV, VENZA HV
24TC032024-07-23. Service bulletin. ELECTRICAL SYSTEM. The Data Communication Module (DCM), which supports Toyota Connected Services in your vehicle, may not have activated properly during vehicle delivery. This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.
24TC032024-07-23. Service bulletin. ELECTRICAL SYSTEM. The Data Communication Module (DCM), which supports Toyota Connected Services in your vehicle, may not have activated properly during vehicle delivery. This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.
24TC032024-07-23. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 24TC03 DATA COMMUNICATON MODULE (DCM) UPDATE CERTAIN 2023 COROLLA, COROLLA CROSS, COROLLA HATCHBACK, COROLLA HV, GR COROLLA, CROWN, HIGHLANDER, HIGHLANDER HV, PRIUS, RAV4, RAV4 PRIME, RAV4 HV, VENZA HV
24TC032024-07-23. Service bulletin. ELECTRICAL SYSTEM. The Data Communication Module (DCM), which supports Toyota Connected Services in your vehicle, may not have activated properly during vehicle delivery. This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.
24TC032024-07-23. Service bulletin. ELECTRICAL SYSTEM. The Data Communication Module (DCM), which supports Toyota Connected Services in your vehicle, may not have activated properly during vehicle delivery. This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.
T-SB-0037-242024-07-06. Service bulletin. ELECTRICAL SYSTEM. 2023 – 2024 model year Toyota GR Corolla vehicles can exhibit a condition where an emergency/SOS call is triggered during track usage and sudden acceleration change events, such as, but not limited to, the vehicle hitting a pothole or a curb. If the emergency call is triggered during such an event, SRS functionality is not affected and continues to function as designed. The SRS ECU logic has been modified to address this condition.
T-SB-0120-20 Rev22024-07-06. 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 Rev22024-07-06. 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-TT-0754-242024-07-06. 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-SB-0037-242024-07-06. Service bulletin. ELECTRICAL SYSTEM. 2023 – 2024 model year Toyota GR Corolla vehicles can exhibit a condition where an emergency/SOS call is triggered during track usage and sudden acceleration change events, such as, but not limited to, the vehicle hitting a pothole or a curb. If the emergency call is triggered during such an event, SRS functionality is not affected and continues to function as designed. The SRS ECU logic has been modified to address this condition.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.