Toyota Corolla Service Bulletins (2021)
169 manufacturer communications on file.
- 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SummaryOBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete.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 (21)2024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota Crown2024 Toyota Prius2024 Toyota RAV42023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota Crown2023 Toyota Prius2023 Toyota RAV42022 Toyota Avalon2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota RAV42021 Toyota Avalon2021 Toyota Camry2021 Toyota Corolla+ 1 moreAssociated 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 - August 19, 2025•Document ID: 11022961Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- T-SB-0088-23 Rev2
- Date Added:
- September 9, 2025
- Manufacturer:
- TOYOTA
SummaryOBSOLETE NOTICE August 19, 2025: This bulletin is now obsolete. Please see T-SB-0059-25.
Associated Products (4)Associated Documents - August 15, 2025•Document ID: 11022958Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- T-SB-0059-25
- Date Added:
- September 9, 2025
- Manufacturer:
- TOYOTA
SummarySome 2020 – 2025 model year Corolla vehicles may exhibit a vibration or rattle noise from the right-hand engine mounting insulator sub-assembly. This condition will usually go away when the engine’s Revolutions Per Minute (RPM) are above idle. This condition is typically found on vehicles in warm climates/weather. No Diagnostic Trouble Codes (DTCs) are associated with this condition. This condition does not affect the operation of the vehicle.
Associated Products (5)Associated Documents - August 7, 2025•Document ID: 11022949Service CampaignENGINE
- Mfr Comm. #:
- 24TE04
- Date Added:
- September 9, 2025
- Manufacturer:
- TOYOTA
SummaryThe specific condition covered by this program is for a small engine coolant leak that can occur from the flow shut-off valve that can allow coolant to drip on other parts of the vehicle. This can cause "Engine Maintenance Required" to be displayed on the instrument cluster or cause the A/C not to function normally. Although the flow shut-off valve is covered by Toyota’s New Vehicle Limited Warranty for 36 months or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to Flow Shut-off Valve Coolant Leak.
Associated Products (5)Associated Documents - June 25, 2025•Document ID: 11020670Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-SB-0010-24 Rev2
- Date Added:
- July 10, 2025
- Manufacturer:
- TOYOTA
SummarySome 2021 – 2022 model year Avalon, 2018 – 2024 Camry, 2019 – 2025 model year Corolla, 2022 – 2025 model year Corolla Cross, and 2019 – 2025 model year RAV4 vehicles with A25A-FKS and M20A-FKS engines may have a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) upon cold soak start up with engine coolant temperatures between 14°F – 41°F: •P030027 – Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold •P030000 – Random/Multiple Cylinder Misfire Detected •P030100 – Cylinder 1 Misfire Detected •P030200 – Cylinder 2 Misfire Detected •P030300 – Cylinder 3 Misfire Detected •P030400 – Cylinder 4 Misfire Detected
Associated Products (20)2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota RAV42024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota RAV42023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota RAV42022 Toyota Avalon2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota RAV42021 Toyota Avalon2021 Toyota Camry2021 Toyota Corolla2021 Toyota RAV4Associated Documents - June 19, 2025•Document ID: 11020668Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- T-SB-0112-24 Rev2
- Date Added:
- July 10, 2025
- Manufacturer:
- TOYOTA
SummarySome 2018 – 2021 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, or M20A-FKS engine may exhibit a condition in which an “Engine Maintenance Required” message is displayed in the Multi-Information Display (MID). Additionally, the vehicle will exhibit DTC(s) P268111 (Engine Coolant Bypass Valve Circuit Short to Ground) and/or P268115 (Engine Coolant Bypass Valve Circuit Short to Battery or Open).
Associated Products (4)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 20, 2025•Document ID: 11016794Warranty Program/ExtensionENGINE
- Mfr Comm. #:
- 24TE04
- Date Added:
- April 8, 2025
- Manufacturer:
- TOYOTA
SummaryAlthough the flow shut-off valve is covered by Toyota’s New Vehicle Limited Warranty for 36 months or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to Flow Shut-off Valve Coolant Leak.
Associated Products (5)Associated Documents - February 20, 2025•Document ID: 11015508Warranty Program/ExtensionENGINE
- Mfr Comm. #:
- 24TE04
- Date Added:
- March 11, 2025
- Manufacturer:
- TOYOTA
SummaryAlthough the flow shut-off valve is covered by Toyota’s New Vehicle Limited Warranty for 36 months or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to Flow Shut-off Valve Coolant Leak.
Associated Products (5)Associated 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 - January 5, 2025•Document ID: 11014174Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- T-SB-0112-24 Rev1
- Date Added:
- February 12, 2025
- Manufacturer:
- TOYOTA
SummarySome 2018 – 2021 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, or M20A-FKS engine may exhibit a condition in which an “Engine Maintenance Required” message is displayed in the Multi-Information Display (MID). Additionally, the vehicle will exhibit DTC(s) P268111 (Engine Coolant Bypass Valve Circuit Short to Ground) and/or P268115 (Engine Coolant Bypass Valve Circuit Short to Battery or Open).
Associated Products (4)Associated Documents - December 17, 2024•Document ID: 11012762Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- T-SB-0010-24 Rev1
- Date Added:
- January 9, 2025
- Manufacturer:
- TOYOTA
SummarySome 2021 – 2022 model year Avalon, 2018 – 2024 Camry, 2019 – 2025 model year Corolla, 2022 – 2025 model year Corolla Cross, and 2019 – 2025 model year RAV4 vehicles with A25A-FKS and M20A-FKS engines may have a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) upon cold soak start up with engine coolant temperatures between 14°F – 41°F: •P030027 – Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold •P030000 – Random/Multiple Cylinder Misfire Detected •P030100 – Cylinder 1 Misfire Detected •P030200 – Cylinder 2 Misfire Detected •P030300 – Cylinder 3 Misfire Detected •P030400 – Cylinder 4 Misfire Detected
Associated Products (20)2025 Toyota Corolla2025 Toyota Corolla Cross2025 Toyota RAV42024 Toyota Camry2024 Toyota Corolla2024 Toyota Corolla Cross2024 Toyota RAV42023 Toyota Camry2023 Toyota Corolla2023 Toyota Corolla Cross2023 Toyota RAV42022 Toyota Avalon2022 Toyota Camry2022 Toyota Corolla2022 Toyota Corolla Cross2022 Toyota RAV42021 Toyota Avalon2021 Toyota Camry2021 Toyota Corolla2021 Toyota RAV4Associated Documents