Toyota Highlander Service Bulletins (2023)
150 manufacturer communications on file.
- August 20, 2026•Document ID: 11037202Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- T-SB-0110-20 Rev2
- Date Added:
- September 9, 2026
- Manufacturer:
- TOYOTA
SummaryOBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26.
Associated Products (58)2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Highlander2025 Toyota Mirai2025 Toyota RAV42025 Toyota Sienna2024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown2024 Toyota Highlander2024 Toyota Mirai2024 Toyota RAV42024 Toyota Sienna2024 Toyota Venza2023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Crown+ 38 moreAssociated Documents - June 25, 2026•Document ID: 11034823Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- T-SB-0040-24 Rev1
- Date Added:
- July 8, 2026
- Manufacturer:
- TOYOTA
SummarySome 2020 – 2026 model year Highlander and Highlander Hybrid vehicles may exhibit a water leak from the roof rack attachment clips. This may be caused by the sealant in the roof channel obstructing the proper seating position for the clip gasket.
Associated Products (7)Associated Documents - May 14, 2026•Document ID: 11033412Warranty Program/ExtensionELECTRICAL SYSTEM
- Mfr Comm. #:
- 22TE09
- Date Added:
- June 4, 2026
- Manufacturer:
- TOYOTA
SummaryAlthough the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing extended coverage under this Customer Support Program for repairs related to excessive corrosion to the wire harness connections at the Rear Motor Generator. Excessive corrosion can cause AM Radio Static during certain drive cycles, or the vehicle may not start.
Associated Products (21)2024 Toyota Crown2024 Toyota Highlander2024 Toyota RAV42024 Toyota Sienna2024 Toyota Venza2023 Toyota Crown2023 Toyota Highlander2023 Toyota RAV42023 Toyota Sienna2023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Sienna2022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Sienna2021 Toyota Venza2020 Toyota Highlander2020 Toyota RAV4+ 1 moreAssociated Documents - March 18, 2026•Document ID: 11031158Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0021-26
- Date Added:
- April 8, 2026
- Manufacturer:
- TOYOTA
SummarySome 2020 – 2024 model year Highlander and Highlander Hybrid vehicles may exhibit a condition in which the air conditioner does not cool due to a leak and/or corrosion in the rear underbody air conditioner tube and accessory assembly. The anti-corrosion material has been updated to reduce the possibility of this condition.
Associated Products (5)Associated Documents - February 27, 2026•Document ID: 11029896Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- T-SB-0104-21 Rev2
- Date Added:
- March 7, 2026
- Manufacturer:
- TOYOTA
SummaryOBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete.
Associated Products (44)2024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown2024 Toyota Grand Highlander2024 Toyota Highlander2024 Toyota Prius2024 Toyota RAV42024 Toyota Sienna2024 Toyota Venza2023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Crown2023 Toyota Highlander2023 Toyota Prius2023 Toyota RAV42023 Toyota Sienna2023 Toyota Venza2022 Toyota Avalon+ 24 moreAssociated Documents - January 7, 2026•Document ID: 11028712Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- T-SB-0055-24 Rev2
- Date Added:
- February 11, 2026
- Manufacturer:
- TOYOTA
SummarySome 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 moreAssociated Documents - January 6, 2026•Document ID: 11028711Warranty Program/ExtensionELECTRICAL SYSTEM
- Mfr Comm. #:
- 22TE09
- Date Added:
- February 11, 2026
- Manufacturer:
- TOYOTA
SummaryAlthough the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing extended coverage under this Customer Support Program for repairs related to excessive corrosion to the wire harness connections at the Rear Motor Generator. Excessive corrosion can cause AM Radio Static during certain drive cycles, or the vehicle may not start.
Associated Products (21)2024 Toyota Crown2024 Toyota Highlander2024 Toyota RAV42024 Toyota Sienna2024 Toyota Venza2023 Toyota Crown2023 Toyota Highlander2023 Toyota RAV42023 Toyota Sienna2023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Sienna2022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Sienna2021 Toyota Venza2020 Toyota Highlander2020 Toyota RAV4+ 1 moreAssociated Documents - November 18, 2025•Document ID: 11026318Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- T-SB-0086-25
- Date Added:
- December 5, 2025
- Manufacturer:
- TOYOTA
SummarySome 2020 – 2023 model year Highlander and Highlander Hybrid vehicles may exhibit a condition in which the Power Back Door (PBD) will not open or close and/or stops moving while opening or closing. A modified PBD unit assembly is available to address these conditions.
Associated Products (4)Associated Documents - November 7, 2025•Document ID: 11026306Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0083-25
- Date Added:
- December 5, 2025
- Manufacturer:
- TOYOTA
SummaryA 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.
Associated Products (15)2025 Toyota Corolla Cross2025 Toyota Highlander2025 Toyota Mirai2025 Toyota Sequoia2025 Toyota Tundra2024 Toyota Corolla Cross2024 Toyota Highlander2024 Toyota Mirai2024 Toyota Sequoia2024 Toyota Tundra2023 Toyota Corolla Cross2023 Toyota Highlander2023 Toyota Mirai2023 Toyota Sequoia2023 Toyota TundraAssociated Documents - September 25, 2025•Document ID: 11024098Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- 25TD01
- Date Added:
- October 8, 2025
- Manufacturer:
- TOYOTA
SummaryThe subject vehicles are equipped with a rear motor unit and an HV Floor Under Wire that provide high voltage to operate the motor. Mud, water, or road salt could potentially enter the HV Floor Underwire connector housing and could cause corrosion over time. Excessive corrosion could cause AM Radio Static during certain driving cycles, or the vehicle may not start.
Associated Products (17)2024 Toyota Crown2024 Toyota Highlander2024 Toyota RAV42024 Toyota Venza2023 Toyota Crown2023 Toyota Highlander2023 Toyota RAV42023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Venza2020 Toyota Highlander2020 Toyota RAV42019 Toyota RAV4Associated Documents - September 24, 2025•Document ID: 11024097Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 25TD01
- Date Added:
- October 8, 2025
- Manufacturer:
- TOYOTA
SummaryTECHNICAL INSTRUCTIONS FOR 25TD01 REAR TRACTION MOTOR CABLE CORROSION CERTAIN 2019 - 2024 RAV4 HV (AWD), 2021- 2024 RAV4 PRIME, 2020-2024 HIGHLANDER HV (AWD), 2021-2024 VENZA HV, 2023-2024 CROWN HV VEHICLES
Associated Products (17)2024 Toyota Crown2024 Toyota Highlander2024 Toyota RAV42024 Toyota Venza2023 Toyota Crown2023 Toyota Highlander2023 Toyota RAV42023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Venza2020 Toyota Highlander2020 Toyota RAV42019 Toyota RAV4Associated Documents - September 24, 2025•Document ID: 11024096Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- 25TD01
- Date Added:
- October 8, 2025
- Manufacturer:
- TOYOTA
SummaryThe subject vehicles are equipped with a rear motor unit and an HV Floor Under Wire that provide high voltage to operate the motor. Mud, water, or road salt could potentially enter the HV Floor Underwire connector housing and could cause corrosion over time. Excessive corrosion could cause AM Radio Static during certain driving cycles, or the vehicle may not start.
Associated Products (17)2024 Toyota Crown2024 Toyota Highlander2024 Toyota RAV42024 Toyota Venza2023 Toyota Crown2023 Toyota Highlander2023 Toyota RAV42023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Venza2020 Toyota Highlander2020 Toyota RAV42019 Toyota RAV4Associated Documents - September 18, 2025•Document ID: 11024090Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 25TD01
- Date Added:
- October 8, 2025
- Manufacturer:
- TOYOTA
SummaryTECHNICAL INSTRUCTIONS FOR 25TD01 REAR TRACTION MOTOR CABLE CORROSION CERTAIN 2019 - 2024 RAV4 HV (AWD) 2021- 2024 RAV4 PRIME 2020-2024 HIGHLANDER HV (AWD) 2021-2024 VENZA HV 2023-2024 CROWN HV
Associated Products (17)2024 Toyota Crown2024 Toyota Highlander2024 Toyota RAV42024 Toyota Venza2023 Toyota Crown2023 Toyota Highlander2023 Toyota RAV42023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Venza2020 Toyota Highlander2020 Toyota RAV42019 Toyota RAV4Associated Documents - September 18, 2025•Document ID: 11024089Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- 25TD01
- Date Added:
- October 8, 2025
- Manufacturer:
- TOYOTA
SummaryThe subject vehicles are equipped with a rear motor unit and an HV Floor Under Wire that provide high voltage to operate the motor. Mud, water, or road salt could potentially enter the HV Floor Underwire connector housing and could cause corrosion over time. Excessive corrosion could cause AM Radio Static during certain driving cycles, or the vehicle may not start.
Associated Products (17)2024 Toyota Crown2024 Toyota Highlander2024 Toyota RAV42024 Toyota Venza2023 Toyota Crown2023 Toyota Highlander2023 Toyota RAV42023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Venza2020 Toyota Highlander2020 Toyota RAV42019 Toyota RAV4Associated Documents - September 17, 2025•Document ID: 11024080Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- 22TE09
- Date Added:
- October 8, 2025
- Manufacturer:
- TOYOTA
SummaryAlthough the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing extended coverage under this Customer Support Program for repairs related to excessive corrosion to the wire harness connections at the Rear Motor Generator. Excessive corrosion can cause AM Radio Static during certain drive cycles, or the vehicle may not start.
Associated Products (21)2024 Toyota Crown2024 Toyota Highlander2024 Toyota RAV42024 Toyota Sienna2024 Toyota Venza2023 Toyota Crown2023 Toyota Highlander2023 Toyota RAV42023 Toyota Sienna2023 Toyota Venza2022 Toyota Highlander2022 Toyota RAV42022 Toyota Sienna2022 Toyota Venza2021 Toyota Highlander2021 Toyota RAV42021 Toyota Sienna2021 Toyota Venza2020 Toyota Highlander2020 Toyota RAV4+ 1 moreAssociated Documents - September 9, 2025•Document ID: 11024075Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0015-24 Rev2
- Date Added:
- October 8, 2025
- Manufacturer:
- TOYOTA
SummaryA new head unit software update is available for 2023 model year Corolla Cross, Corolla Cross Hybrid, Highlander, Highlander Hybrid, and Mirai 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.
Associated Products (3)Associated Documents - June 13, 2025•Document ID: 11020657Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0058-23 Rev1
- Date Added:
- July 10, 2025
- Manufacturer:
- TOYOTA
SummaryThe 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 moreAssociated Documents - April 2, 2025•Document ID: 11019331Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-TT-0779-25
- Date Added:
- June 6, 2025
- Manufacturer:
- TOYOTA
SummaryTo 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 moreAssociated Documents - April 2, 2025•Document ID: 11018328Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-TT-0779-25
- Date Added:
- May 15, 2025
- Manufacturer:
- TOYOTA
SummaryTo 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 moreAssociated Documents - February 10, 2025•Document ID: 11016781Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0013-24 Rev1
- Date Added:
- April 8, 2025
- Manufacturer:
- TOYOTA
SummaryThe 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 moreAssociated Documents