Toyota Sienna Service Bulletins
1,392 manufacturer communications on file.
- 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 - December 2, 2025•Document ID: 11027555Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- T-TT-0795-25
- Date Added:
- January 9, 2026
- Manufacturer:
- TOYOTA
SummarySome customers may experience a condition in which the 2021-2025 Sienna HV 2nd row FRAME SUB-ASSY, No.1 does not function even when the stow lever is pulled. Because the cable has come off from the bracket that holds it inside.
Associated Products (5)Associated Documents - November 24, 2025•Document ID: 11026324Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- T-SB-0087-25
- Date Added:
- December 5, 2025
- Manufacturer:
- TOYOTA
SummarySome 2024 – 2025 model year Sienna Hybrid and Sienna Hybrid MaaS Package vehicles may exhibit a condition in which the rear No. 1 seat assembly (for captain seat type) squeaks or rattles while driving. The condition(s) can occur on both the driver and passenger side seats of the vehicle. Application of noise reducing felt has been developed to improve and reduce these conditions.
Associated Products (2)Associated Documents - November 18, 2025•Document ID: 11026317Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- T-SB-0017-25 Rev2
- Date Added:
- December 5, 2025
- Manufacturer:
- TOYOTA
SummaryA battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain, and battery load. Because of these factors, battery inspection and maintenance are required in order to ensure proper operation and optimal battery life.
Associated Products (20)2027 Toyota Land Cruiser2026 Toyota 4Runner2026 Toyota bZ2026 Toyota Camry2026 Toyota C-HR2026 Toyota Corolla2026 Toyota Corolla Cross2026 Toyota Crown2026 Toyota Crown Signia2026 Toyota Grand Highlander2026 Toyota GR Corolla2026 Toyota Highlander2026 Toyota Mirai2026 Toyota Prius2026 Toyota RAV42026 Toyota Sequoia2026 Toyota Sienna2026 Toyota Supra2026 Toyota Tacoma2026 Toyota TundraAssociated Documents - November 18, 2025•Document ID: 11026316Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- T-SB-0009-25 Rev2
- Date Added:
- December 5, 2025
- Manufacturer:
- TOYOTA
SummaryLong-term or off-site storage requires special care to maintain vehicle condition. The guidelines included should be performed to minimize vehicle component/part degradation due to extended vehicle storage conditions. Long-term storage can affect a vehicle’s systems and components. Any problems that are found should be corrected immediately.
Associated Products (20)2027 Toyota Land Cruiser2026 Toyota 4Runner2026 Toyota bZ2026 Toyota Camry2026 Toyota C-HR2026 Toyota Corolla2026 Toyota Corolla Cross2026 Toyota Crown2026 Toyota Crown Signia2026 Toyota Grand Highlander2026 Toyota GR Corolla2026 Toyota Highlander2026 Toyota Mirai2026 Toyota Prius2026 Toyota RAV42026 Toyota Sequoia2026 Toyota Sienna2026 Toyota Supra2026 Toyota Tacoma2026 Toyota TundraAssociated Documents - November 18, 2025•Document ID: 11026315Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- T-SB-0007-25 Rev2
- Date Added:
- December 5, 2025
- Manufacturer:
- TOYOTA
Summary2026 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize retainers for passenger side and rear seat floor mats.
Associated Products (20)2027 Toyota Land Cruiser2026 Toyota 4Runner2026 Toyota bZ2026 Toyota Camry2026 Toyota C-HR2026 Toyota Corolla2026 Toyota Corolla Cross2026 Toyota Crown2026 Toyota Crown Signia2026 Toyota Grand Highlander2026 Toyota GR Corolla2026 Toyota Highlander2026 Toyota Mirai2026 Toyota Prius2026 Toyota RAV42026 Toyota Sequoia2026 Toyota Sienna2026 Toyota Supra2026 Toyota Tacoma2026 Toyota TundraAssociated Documents - November 18, 2025•Document ID: 11026314Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- T-SB-0005-25 Rev2
- Date Added:
- December 5, 2025
- Manufacturer:
- TOYOTA
SummaryDuring the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. If the wheels are replaced or refinished before vehicle delivery, it is important that the tires remain on the vehicle in the same location and in the same direction of rotation.
Associated Products (20)2027 Toyota Land Cruiser2026 Toyota 4Runner2026 Toyota bZ2026 Toyota Camry2026 Toyota C-HR2026 Toyota Corolla2026 Toyota Corolla Cross2026 Toyota Crown2026 Toyota Crown Signia2026 Toyota Grand Highlander2026 Toyota GR Corolla2026 Toyota Highlander2026 Toyota Mirai2026 Toyota Prius2026 Toyota RAV42026 Toyota Sequoia2026 Toyota Sienna2026 Toyota Supra2026 Toyota Tacoma2026 Toyota TundraAssociated Documents - November 6, 2025•Document ID: 11026304Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- T-SB-0082-25
- Date Added:
- December 5, 2025
- Manufacturer:
- TOYOTA
SummarySome 2021 – 2025 model year Sienna Hybrid vehicles may exhibit a sloshing or splashing noise from inside one or more door panels when driving, opening and/or closing a door, and/or braking. This condition may be caused by cavity wax, debris, or other materials that may block door drain holes and restrict water from draining properly.
Associated Products (5)Associated Documents - September 17, 2025•Document ID: 11024081Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 22TE09
- Date Added:
- October 8, 2025
- Manufacturer:
- TOYOTA
SummaryTECHNICAL INSTRUCTIONS FOR CUSTOMER SUPPORT PROGRAM 22TE09 HV FLOOR UNDER WIRE HARNESS AND REAR TRACTION MOTOR CABLE CORROSION CERTAIN 2021 – 2024 MODEL YEAR SIENNA HYBRID
Associated Products (4)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 (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 - August 20, 2025•Document ID: 11022964Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- T-TT-0790-25
- Date Added:
- September 9, 2025
- Manufacturer:
- TOYOTA
SummarySome customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low.
Associated Products (33)2019 Toyota 4Runner2019 Toyota Highlander2019 Toyota Prius2019 Toyota Sequoia2019 Toyota Sienna2019 Toyota Tacoma2019 Toyota Tundra2018 Toyota 4Runner2018 Toyota Avalon2018 Toyota Highlander2018 Toyota Prius2018 Toyota Prius V2018 Toyota Sequoia2018 Toyota Sienna2018 Toyota Tacoma2018 Toyota Tundra2018 Toyota Yaris2017 Toyota 4Runner2017 Toyota Avalon2017 Toyota Highlander+ 13 moreAssociated 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 (17)2021 Toyota Avalon2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander2021 Toyota RAV42021 Toyota Sienna2021 Toyota Venza2020 Toyota Avalon2020 Toyota Camry2020 Toyota Corolla2020 Toyota Highlander2020 Toyota RAV42019 Toyota Avalon2019 Toyota Camry2019 Toyota Corolla2019 Toyota RAV42018 Toyota CamryAssociated Documents - July 24, 2025•Document ID: 11021728Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- T-SB-0035-25 Rev1
- Date Added:
- August 8, 2025
- Manufacturer:
- TOYOTA
SummarySome 2025 model year Sienna Hybrid vehicles equipped with the advanced rear seat reminder system may exhibit one or both of the following conditions: •A “Rear Seat Reminder Malfunction – Visit Your Dealer” message on the Multi-information Display (MID). •Diagnostic Trouble Code (DTC) U117487 (Lost Communication with Cabin Occupant Recognition Sensor Missing) present in the main body ECU. The cabin object recognition sensor assembly logic has been modified to address these conditions.
Associated Products (1)Associated Documents - July 1, 2025•Document ID: 11021712Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- 22TD04
- Date Added:
- August 8, 2025
- Manufacturer:
- TOYOTA
Summary22TD04 Expired on June 30, 2025 A Toyota Genuine Accessory Dash Camera was installed in the involved vehicles. If the Micro SD Card used in the accessory dash camera is damaged the accessory dash camera may continuously attempt to read/write data to the card. This can lead to an increase in temperature of the card and may lead to localized melting of the card and the surrounding area of the dash cam.
Associated Products (2)Associated Documents - July 1, 2025•Document ID: 11021711Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- 22TD04
- Date Added:
- August 8, 2025
- Manufacturer:
- TOYOTA
Summary22TD04 Expired on June 30, 2025 A Toyota Genuine Accessory Dash Camera was installed in the involved vehicles. If the Micro SD Card used in the accessory dash camera is damaged the accessory dash camera may continuously attempt to read/write data to the card. This can lead to an increase in temperature of the card and may lead to localized melting of the card and the surrounding area of the dash cam.
Associated Products (2)Associated 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 (17)2021 Toyota Avalon2021 Toyota Camry2021 Toyota Corolla2021 Toyota Highlander2021 Toyota RAV42021 Toyota Sienna2021 Toyota Venza2020 Toyota Avalon2020 Toyota Camry2020 Toyota Corolla2020 Toyota Highlander2020 Toyota RAV42019 Toyota Avalon2019 Toyota Camry2019 Toyota Corolla2019 Toyota RAV42018 Toyota CamryAssociated 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 - June 2, 2025•Document ID: 11020646Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- T-SB-0009-25 Rev1
- Date Added:
- July 10, 2025
- Manufacturer:
- TOYOTA
SummaryLong-term or off-site storage requires special care to maintain vehicle condition. The following guidelines should be performed to minimize vehicle component/part degradation due to extended vehicle storage conditions. Long-term storage can affect a vehicle’s systems and components. Any problems that are found should be corrected immediately.
Associated Products (19)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 TundraAssociated Documents - June 2, 2025•Document ID: 11020645Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- T-SB-0007-25 Rev1
- Date Added:
- July 10, 2025
- Manufacturer:
- TOYOTA
Summary2026 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize retainers for passenger side and rear seat floor mats. During Pre-Delivery Service (PDS), follow the appropriate Installation Procedure to attach the driver side, and if applicable, the passenger side and rear seat floor mats to the vehicle carpet using the floor mat retainers. If installation instructions are included in the floor mat kit, place the instructions in the vehicle’s glove box for customer reference.
Associated Products (19)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 TundraAssociated Documents