Toyota Highlander Service Bulletins (2021)
180 manufacturer communications on file.
- 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 (6)Associated 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 (4)Associated Documents - January 30, 2026•Document ID: 11028726Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0106-22 Rev2
- Date Added:
- February 11, 2026
- Manufacturer:
- TOYOTA
SummaryOBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
Associated Products (29)2024 Toyota 4Runner2024 Toyota Camry2023 Toyota 4Runner2023 Toyota Camry2023 Toyota Tacoma2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR+ 9 moreAssociated Documents - January 28, 2026•Document ID: 11028722Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0001-26
- Date Added:
- February 11, 2026
- Manufacturer:
- TOYOTA
SummarySome 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.
Associated Products (29)2024 Toyota 4Runner2024 Toyota Camry2023 Toyota 4Runner2023 Toyota Camry2023 Toyota Tacoma2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR+ 9 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 (92)2026 Toyota 4Runner2026 Toyota bZ2026 Toyota Corolla2026 Toyota Corolla Cross2026 Toyota Crown2026 Toyota Crown Signia2026 Toyota GR Corolla2026 Toyota Grand Highlander2026 Toyota Highlander2026 Toyota Mirai2026 Toyota Prius2026 Toyota Supra2026 Toyota Tacoma2026 Toyota Tundra2026 Toyota Yaris2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown+ 72 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 (3)Associated 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 (10)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 (67)2026 Toyota Crown2026 Toyota Yaris2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Crown Signia2025 Toyota GR Corolla2025 Toyota Grand Highlander2025 Toyota Highlander2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Tacoma2025 Toyota Tundra2025 Toyota Yaris2024 Toyota 4Runner2024 Toyota bZ4X+ 47 moreAssociated Documents - April 2, 2025•Document ID: 11019332Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-TT-0780-25
- 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 (30)2024 Toyota 4Runner2024 Toyota Camry2023 Toyota 4Runner2023 Toyota Camry2023 Toyota Tacoma2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR+ 10 moreAssociated Documents - April 2, 2025•Document ID: 11018329Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-TT-0780-25
- 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 (30)2024 Toyota 4Runner2024 Toyota Camry2023 Toyota 4Runner2023 Toyota Camry2023 Toyota Tacoma2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR+ 10 moreAssociated Documents - February 11, 2025•Document ID: 11016786Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0106-22 Rev2
- Date Added:
- April 8, 2025
- Manufacturer:
- TOYOTA
SummarySome 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic 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.
Associated Products (29)2024 Toyota 4Runner2024 Toyota Camry2023 Toyota 4Runner2023 Toyota Camry2023 Toyota Tacoma2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR+ 9 moreAssociated Documents - February 11, 2025•Document ID: 11015500Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0106-22 Rev2
- Date Added:
- March 11, 2025
- Manufacturer:
- TOYOTA
SummarySome 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic 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.
Associated Products (29)2024 Toyota 4Runner2024 Toyota Camry2023 Toyota 4Runner2023 Toyota Camry2023 Toyota Tacoma2022 Toyota 4Runner2022 Toyota Avalon2022 Toyota C-HR2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota Highlander2022 Toyota Mirai2022 Toyota Prius2022 Toyota RAV42022 Toyota Sequoia2022 Toyota Tacoma2021 Toyota 4Runner2021 Toyota Avalon2021 Toyota C-HR+ 9 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 (54)2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota GR Corolla2025 Toyota Grand Highlander2025 Toyota Highlander2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Tacoma2025 Toyota Tundra2024 Toyota 4Runner2024 Toyota bZ4X2024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown+ 34 moreAssociated Documents - February 10, 2025•Document ID: 11015495Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0013-24 Rev1
- Date Added:
- March 11, 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 (54)2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota GR Corolla2025 Toyota Grand Highlander2025 Toyota Highlander2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Tacoma2025 Toyota Tundra2024 Toyota 4Runner2024 Toyota bZ4X2024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown+ 34 moreAssociated Documents - February 7, 2025•Document ID: 11016779Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- 22TD02
- Date Added:
- April 8, 2025
- Manufacturer:
- TOYOTA
SummaryTECHNICAL INSTRUCTIONS LIMITED SERVICE CAMPAIGN 22TD02 FUEL INLET HOUSING CERTAIN 2021 MODEL YEAR HIGHLANDER CERTAIN 2021 MODEL YEAR HIGHLANDER HYBRID
Associated Products (1)Associated Documents - February 7, 2025•Document ID: 11016778Service CampaignFUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- 22TD02
- Date Added:
- April 8, 2025
- Manufacturer:
- TOYOTA
Summary22TD02 expired on 2/7/2025 A seam near the fuel inlet may not have been properly sealed during manufacturing. This can allow water to leak into the interior area of the vehicle, behind the third-row seat, when the vehicle is exposed to wet environmental conditions like rain or a car wash.
Associated Products (1)Associated Documents - February 7, 2025•Document ID: 11015493Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- 22TD02
- Date Added:
- March 11, 2025
- Manufacturer:
- TOYOTA
SummaryTECHNICAL INSTRUCTIONS LIMITED SERVICE CAMPAIGN 22TD02 FUEL INLET HOUSING CERTAIN 2021 MODEL YEAR HIGHLANDER CERTAIN 2021 MODEL YEAR HIGHLANDER HYBRID
Associated Products (1)Associated Documents - February 7, 2025•Document ID: 11015492Service CampaignFUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- 22TD02
- Date Added:
- March 11, 2025
- Manufacturer:
- TOYOTA
Summary22TD02 expired on 2/7/2025 A seam near the fuel inlet may not have been properly sealed during manufacturing. This can allow water to leak into the interior area of the vehicle, behind the third-row seat, when the vehicle is exposed to wet environmental conditions like rain or a car wash.
Associated Products (1)Associated Documents - December 19, 2024•Document ID: 10249327Service Bulletin/Repair InstructionsUNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
- Mfr Comm. #:
- LSB006523
- Date Added:
- January 29, 2024
- Manufacturer:
- TOYOTA
SummaryTT: Engine Oil Leak between the Lower Oil Pan and Crank Case
Associated Products (13)Associated Documents - December 6, 2024•Document ID: 11012744Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- T-SB-0039-24 Rev2
- Date Added:
- January 9, 2025
- Manufacturer:
- TOYOTA
SummaryThe condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof, and decklid, significant damage can occur. This damage is the result of actual etching of the paint and appears as pitting or water spots. As acid rain droplets on the vehicle surface evaporate, the concentration strength of the acid increases, causing deeper and more rapid damage. This evaporation and corrosive action also occur more rapidly on dark colored cars as direct sun heat increases. It is the dealer’s responsibility to protect and maintain the quality of the vehicle’s paint finish after receipt at the dealership prior to the first sale. In areas known for high frequency and/or concentration of acid rain, frequent vehicle washing during high heat or humidity periods will minimize the potential for paint damage caused by acid rain. It is further recommended that either reverse osmosis or deionized water be used to prevent water spotting.
Associated Products (81)2025 Toyota 4Runner2025 Toyota bZ4X2025 Toyota Camry2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota Crown2025 Toyota Crown Signia2025 Toyota GR Corolla2025 Toyota Grand Highlander2025 Toyota Highlander2025 Toyota Mirai2025 Toyota Prius2025 Toyota RAV42025 Toyota Supra2025 Toyota Tacoma2025 Toyota Tundra2025 Toyota Venza2024 Toyota 4Runner2024 Toyota bZ4X2024 Toyota Camry+ 61 moreAssociated Documents