Toyota bZ4X Service Bulletins (2024)

104 manufacturer communications on file.

• August 5, 2026•Document ID: 11037177

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  T-SB-0043-26

  Date Added:

  September 9, 2026

  Manufacturer:

  TOYOTA

  Summary

  Some 2023 – 2025 model year bZ4X vehicles may exhibit a creaking noise coming from the strut mounting bearing of the front suspension when turning. A new part has been developed to address this condition.

  Associated Products (3)

  2025 Toyota bZ4X2024 Toyota bZ4X2023 Toyota bZ4X
  Associated Documents

  • DownloadMC-11037177-0001.pdf↗
• April 16, 2026•Document ID: 11032478

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  T-TT-0801-26

  Date Added:

  May 8, 2026

  Manufacturer:

  TOYOTA

  Summary

  Some Customers for the above vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 charger. Additionally, most will indicate one or more of the LEDs on the charger will illuminate at the time of no charge. Charging at other stations is still possible.

  Associated Products (5)

  2026 Toyota bZ2026 Toyota Prius2026 Toyota RAV42025 Toyota bZ4X2024 Toyota bZ4X
  Associated Documents

  • DownloadMC-11032478-0001.pdf↗
• March 6, 2026•Document ID: 11031151

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  T-TT-0801-26

  Date Added:

  April 8, 2026

  Manufacturer:

  TOYOTA

  Summary

  Some Customers for the listed vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 charger. Additionally, most will indicate one or more of the LEDs on the charger will illuminate at the time of no charge. Charging at other stations is still possible.

  Associated Products (5)

  2026 Toyota bZ2026 Toyota Prius2026 Toyota RAV42025 Toyota bZ4X2024 Toyota bZ4X
  Associated Documents

  • DownloadMC-11031151-0001.pdf↗
• January 23, 2026•Document ID: 11028720

  Other
  EXTERIOR LIGHTING

  Mfr Comm. #:

  26TH01

  Date Added:

  February 11, 2026

  Manufacturer:

  TOYOTA

  Summary

  Toyota is conducting a noncompliance equipment recall involving certain Rear Combination Lamp service parts for Toyota bZ4X sold from December 2023 to November 2025 in the U.S. Approximately 80 service parts are involved in this recall. The subject rear combination lamp service parts were sold in the U.S. even though they were intended for an overseas market. These parts do not meet a federal safety standard because they have a side marker reflector instead of a side marker lamp. In the absence of light reflecting off the reflector, this can reduce the ability of other road users to identify the rear of the vehicle from the side, potentially increasing the risk of a crash.

  Associated Products (3)

  2025 Toyota bZ4X2024 Toyota bZ4X2023 Toyota bZ4X
  Associated Documents

  • DownloadMC-11028720-0001.pdf↗
• January 7, 2026•Document ID: 11028712

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  T-SB-0055-24 Rev2

  Date Added:

  February 11, 2026

  Manufacturer:

  TOYOTA

  Summary

  Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year Repair Manual and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines.

  Associated Products (376)

  2026 Toyota 4Runner2026 Toyota bZ2026 Toyota Camry2026 Toyota Corolla2026 Toyota Corolla Cross2026 Toyota Crown2026 Toyota Crown Signia2026 Toyota Grand Highlander2026 Toyota GR Corolla2026 Toyota Highlander2026 Toyota Land Cruiser2026 Toyota Mirai2026 Toyota Prius2026 Toyota RAV42026 Toyota Sequoia2026 Toyota Sienna2026 Toyota Supra2026 Toyota Tacoma2026 Toyota Tundra2026 Toyota Yaris+ 356 more
  Associated Documents

  • DownloadMC-11028712-0001.pdf↗
• November 4, 2025•Document ID: 11026302

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  25TD03

  Date Added:

  December 5, 2025

  Manufacturer:

  TOYOTA

  Summary

  Model Year 2023-2025 bZ4X vehicles have charge ports that use the CCS standard. This program is for lessees and owners of these vehicles to receive 1 complimentary NACS Charging Adapter per vehicle to enable charging at stations using the NACS standard.

  Associated Products (3)

  2025 Toyota bZ4X2024 Toyota bZ4X2023 Toyota bZ4X
  Associated Documents

  • DownloadMC-11026302-0001.pdf↗
• June 17, 2025•Document ID: 11020664

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  T-TT-0784-25 Rev1

  Date Added:

  July 10, 2025

  Manufacturer:

  TOYOTA

  Summary

  Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these type of DTCs.

  Associated Products (39)

  2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Prius2025 Toyota RAV42024 Toyota bZ4X2024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Prius2024 Toyota RAV42024 Toyota Venza2023 Toyota bZ4X2023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Prius2023 Toyota RAV42023 Toyota Venza+ 19 more
  Associated Documents

  • DownloadMC-11020664-0001.pdf↗
• June 13, 2025•Document ID: 11020658

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  T-TT-0784-25

  Date Added:

  July 10, 2025

  Manufacturer:

  TOYOTA

  Summary

  Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these type of DTCs.

  Associated Products (39)

  2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Prius2025 Toyota RAV42024 Toyota bZ4X2024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Prius2024 Toyota RAV42024 Toyota Venza2023 Toyota bZ4X2023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Prius2023 Toyota RAV42023 Toyota Venza+ 19 more
  Associated Documents

  • DownloadMC-11020658-0001.pdf↗
• June 13, 2025•Document ID: 11020657

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-SB-0058-23 Rev1

  Date Added:

  July 10, 2025

  Manufacturer:

  TOYOTA

  Summary

  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.

  Associated Products (204)

  2026 Toyota Crown2026 Toyota Yaris2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Crown Signia2025 Toyota Grand Highlander2025 Toyota GR Corolla2025 Toyota Highlander2025 Toyota Land Cruiser2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Sienna2025 Toyota Tacoma2025 Toyota Tundra2025 Toyota Yaris+ 184 more
  Associated Documents

  • DownloadMC-11020657-0001.pdf↗
• April 2, 2025•Document ID: 11019331

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-TT-0779-25

  Date Added:

  June 6, 2025

  Manufacturer:

  TOYOTA

  Summary

  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.

  Associated Products (45)

  2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Crown Signia2025 Toyota Grand Highlander2025 Toyota GR Corolla2025 Toyota Highlander2025 Toyota Land Cruiser2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Sequoia2025 Toyota Sienna2025 Toyota Tacoma2025 Toyota Tundra2024 Toyota bZ4X2024 Toyota Corolla+ 25 more
  Associated Documents

  • DownloadMC-11019331-0001.pdf↗
• April 2, 2025•Document ID: 11018328

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-TT-0779-25

  Date Added:

  May 15, 2025

  Manufacturer:

  TOYOTA

  Summary

  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.

  Associated Products (45)

  2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Crown Signia2025 Toyota Grand Highlander2025 Toyota GR Corolla2025 Toyota Highlander2025 Toyota Land Cruiser2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Sequoia2025 Toyota Sienna2025 Toyota Tacoma2025 Toyota Tundra2024 Toyota bZ4X2024 Toyota Corolla+ 25 more
  Associated Documents

  • DownloadMC-11018328-0001.pdf↗
• February 12, 2025•Document ID: 11015882

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  T-SB-0107-20 Rev2

  Date Added:

  March 25, 2025

  Manufacturer:

  TOYOTA

  Summary

  OBSOLETE NOTICE February 11, 2025: This bulletin is now obsolete. Please see T-SB-0021-25.

  Associated Products (37)

  2024 Toyota bZ4X2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown2024 Toyota Grand Highlander2024 Toyota GR Corolla2024 Toyota Highlander2024 Toyota Mirai2024 Toyota Prius2024 Toyota RAV42024 Toyota Sequoia2024 Toyota Sienna2024 Toyota Tundra2024 Toyota Venza2023 Toyota bZ4X2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Crown2023 Toyota GR Corolla2023 Toyota Mirai+ 17 more
  Associated Documents

  • DownloadMC-11015882-0001.pdf↗
• February 12, 2025•Document ID: 11015876

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  T-SB-0025-25

  Date Added:

  March 24, 2025

  Manufacturer:

  TOYOTA

  Summary

  Some 2024 model year bZ4X vehicles may exhibit a condition where the charging limit setting defaults to full after every key cycle, removing the upper limit set by the customer. The electric converter unit assembly software logic has been modified to address this condition.

  Associated Products (1)

  2024 Toyota bZ4X
  Associated Documents

  • DownloadMC-11015876-0001.pdf↗
• February 10, 2025•Document ID: 11016782

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  T-SB-0021-25

  Date Added:

  April 8, 2025

  Manufacturer:

  TOYOTA

  Summary

  Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming procedures and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard+ (CUW+). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the GTS+ ECU flash reprogramming process.

  Associated Products (56)

  2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Crown Signia2025 Toyota Grand Highlander2025 Toyota GR Corolla2025 Toyota Highlander2025 Toyota Land Cruiser2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Sequoia2025 Toyota Sienna2025 Toyota Tacoma2025 Toyota Tundra2025 Toyota Venza2024 Toyota bZ4X2024 Toyota Corolla+ 36 more
  Associated Documents

  • DownloadMC-11016782-0001.pdf↗
• February 10, 2025•Document ID: 11016781

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-SB-0013-24 Rev1

  Date Added:

  April 8, 2025

  Manufacturer:

  TOYOTA

  Summary

  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.

  Associated Products (73)

  2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Grand Highlander2025 Toyota GR Corolla2025 Toyota Highlander2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Sequoia2025 Toyota Sienna2025 Toyota Tacoma2025 Toyota Tundra2025 Toyota Venza2024 Toyota 4Runner2024 Toyota bZ4X2024 Toyota Camry+ 53 more
  Associated Documents

  • DownloadMC-11016781-0001.pdf↗
• February 10, 2025•Document ID: 11015496

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  T-SB-0021-25

  Date Added:

  March 11, 2025

  Manufacturer:

  TOYOTA

  Summary

  Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming procedures and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard+ (CUW+). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the GTS+ ECU flash reprogramming process.

  Associated Products (56)

  2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Crown Signia2025 Toyota Grand Highlander2025 Toyota GR Corolla2025 Toyota Highlander2025 Toyota Land Cruiser2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Sequoia2025 Toyota Sienna2025 Toyota Tacoma2025 Toyota Tundra2025 Toyota Venza2024 Toyota bZ4X2024 Toyota Corolla+ 36 more
  Associated Documents

  • DownloadMC-11015496-0001.pdf↗
• February 10, 2025•Document ID: 11015495

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-SB-0013-24 Rev1

  Date Added:

  March 11, 2025

  Manufacturer:

  TOYOTA

  Summary

  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.

  Associated Products (73)

  2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Grand Highlander2025 Toyota GR Corolla2025 Toyota Highlander2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Sequoia2025 Toyota Sienna2025 Toyota Tacoma2025 Toyota Tundra2025 Toyota Venza2024 Toyota 4Runner2024 Toyota bZ4X2024 Toyota Camry+ 53 more
  Associated Documents

  • DownloadMC-11015495-0001.pdf↗
• January 30, 2025•Document ID: 11014211

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-SB-0120-20 Rev2

  Date Added:

  February 12, 2025

  Manufacturer:

  TOYOTA

  Summary

  OBSOLETE NOTICE January 30, 2025: This bulletin is now obsolete. Please see T-SB-0015-25.

  Associated Products (25)

  2024 Toyota bZ4X2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown2024 Toyota Grand Highlander2024 Toyota GR Corolla2024 Toyota Highlander2024 Toyota Mirai2024 Toyota Prius2024 Toyota Sequoia2024 Toyota Tacoma2024 Toyota Tundra2024 Toyota Venza2023 Toyota bZ4X2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Crown2023 Toyota GR Corolla2023 Toyota Prius2023 Toyota Sequoia+ 5 more
  Associated Documents

  • DownloadMC-11014211-0001.pdf↗
• January 29, 2025•Document ID: 11014209

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-SB-0015-25

  Date Added:

  February 12, 2025

  Manufacturer:

  TOYOTA

  Summary

  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.

  Associated Products (41)

  2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Crown Signia2025 Toyota Grand Highlander2025 Toyota GR Corolla2025 Toyota Highlander2025 Toyota Land Cruiser2025 Toyota Mirai2025 Toyota Prius2025 Toyota Sequoia2025 Toyota Tacoma2025 Toyota Tundra2024 Toyota bZ4X2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown+ 21 more
  Associated Documents

  • DownloadMC-11014209-0001.pdf↗
• January 23, 2025•Document ID: 11014193

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  T-SB-0111-20 Rev2

  Date Added:

  February 12, 2025

  Manufacturer:

  TOYOTA

  Summary

  OBSOLETE NOTICE January 23, 2025: This bulletin is now obsolete. Please see T-SB-0011-25.

  Associated Products (39)

  2024 Toyota bZ4X2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown2024 Toyota Grand Highlander2024 Toyota GR Corolla2024 Toyota Highlander2024 Toyota Mirai2024 Toyota Prius2024 Toyota RAV42024 Toyota Sequoia2024 Toyota Sienna2024 Toyota Tundra2024 Toyota Venza2024 Toyota Yaris2023 Toyota bZ4X2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Crown2023 Toyota GR Corolla+ 19 more
  Associated Documents

  • DownloadMC-11014193-0001.pdf↗