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Service bulletins for the 2015 Toyota Sienna

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

347 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
T-SB-0008-202020-02-18. Service bulletin. EQUIPMENT. TSB: Vehicles may display evidence of a fluid leak or fluid seep from powertrain components. This bulletin explains how to determine the differences between a fluid leak versus a fluid seep. Cases that are determined to be a ?leak? should be repaired accordingly and will be covered under warranty if applicable. Cases that are determined to be a ?seep? should be documented on the repair order and inspected at the next service interval. Follow the Repair Information in this bulletin to determine if the concern in question is a fluid leak or fluid seep and review the Repair Procedure section to address the condition. NOTE This bulletin applies to ALL powertrain fluids excluding fuel and coolant.
T-TT-0442-17_Rev2019-12-16. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active after the initial trial period. Once the subscription has expired the DCM (Telematics Transceiver) will be in an inactive state. In some instances, a DCM may need to be replaced even though the customer is not using the service. If registration of the replacement DCM part is attempted using the Techstream utility after the account has become inactive, the registration will fail, and messages such as ?ATX webserver is Down? or ?ATX error? will be displayed.
KR3_Dealer Packa2019-12-02. Service bulletin. EQUIPMENT. Dealer Package: Toyota will be sending Safety Recall/Special Service Campaign Follow-Up Notices to owners whose vehicles have not yet had the following Safety Recall/Special Service Campaign repairs completed. Please note the following information for Regional and PD associates.
KR3_Dealer Email2019-12-02. Service bulletin. EQUIPMENT. Dealer Email: Toyota will be sending Safety Recall/Special Service Campaign Follow-Up Notices to owners whose vehicles have not yet had the following Safety Recall/Special Service Campaign repairs completed. Please note the following information for Regional and PD associates.
KR3_Region Lette2019-12-02. Service bulletin. EQUIPMENT. Region Letter: Toyota will be sending Safety Recall/Special Service Campaign Follow-Up Notices to owners whose vehicles have not yet had the following Safety Recall/Special Service Campaign repairs completed. Please note the following information for Regional and PD associates.
KR3_Region Email2019-12-02. Service bulletin. EQUIPMENT. Region Email: Toyota will be sending Safety Recall/Special Service Campaign Follow-Up Notices to owners whose vehicles have not yet had the following Safety Recall/Special Service Campaign repairs completed. Please note the following information for Regional and PD associates.
T-TT-0574-192019-10-15. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TT: Some customers may experience poor outgoing Bluetooth sound quality, this can occur for various reasons. Current multimedia systems are designed with the ability to adjust Bluetooth sound quality to compensate for echo or excessive background noise.
T-SB-0033-14-Obs2019-09-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB: OBSOLETE NOTICE July 9, 2019: This bulletin is now obsolete. Please see T-SB-0080-19.
T-SB-0080-192019-09-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0033-14. ? Applicability has been updated to include 2019 model year Toyota vehicles. Service Bulletin No. T-SB-0033-14 is obsolete and any printed versions should be discarded. Some 2006 ? 2019 model year Toyota vehicles in particular geographic areas may exhibit a condition where the HVAC evaporator drain hose has become obstructed with an insect nest. An insect repellent drain hose tip (ARINIX® Tip) is available to help minimize future occurrences of this environmental condition. For some models, a new drain hose is required to properly fit the ARINIX® Tip. Follow the procedures in this bulletin for proper handling and installation of this optional service part. NOTE The ARINIX® Tip is NOT registered or labeled for sale or use outside the United States or Puerto Rico.
T-SB-0076-192019-09-03. Service bulletin. EQUIPMENT; WHEELS. TSB: Some 2009 ? 2019 model year Toyota vehicles with super chrome wheel finishes may become discolored and/or damaged when aftermarket cleaners, polishes, or brake dust removal products are used on wheels with super chrome finishes. Wheel cleaners and polish that contain acidic substances may damage the clear coat of the wheel, resulting in the undercoating (black) to become visible.
ZKF_Toyota POL192019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE; EQUIPMENT. Customer Support Program: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a proposed class action settlement, Toyota is announcing a Customer Support Program to provide coverage for the sliding door center hinge assembly. Although the sliding door center hinge assembly is covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever occurs first), we at Toyota care about each customer?s ownership experience. Toyota is providing additional coverage for repairs related to sliding door center hinge assembly. Only those repairs that are related to internal functional concerns of the sliding door center hinge assembly that impede the closing and/or opening operations of the sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKF_Toyota POL192019-07-15. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR; EQUIPMENT. Customer Support Program: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a proposed class action settlement, Toyota is announcing a Customer Support Program to provide coverage for the sliding door center hinge assembly. Although the sliding door center hinge assembly is covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever occurs first), we at Toyota care about each customer?s ownership experience. Toyota is providing additional coverage for repairs related to sliding door center hinge assembly. Only those repairs that are related to internal functional concerns of the sliding door center hinge assembly that impede the closing and/or opening operations of the sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKD_Toyota POL192019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT; STRUCTURE. Customer Program Support: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a proposed class action settlement, Toyota is announcing a Customer Support Program to provide coverage for the power sliding door cable sub-assembly. Although the power sliding door cable sub-assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever occurs first), we at Toyota care about each customer?s ownership experience. Toyota is providing additional coverage for repairs related to the power sliding door cable sub-assembly. Only those repairs that are related to internal functional concerns of the power sliding door cable sub-assembly that impede the closing and/or opening operations of the power sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKD_Dealer Packa2019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT; STRUCTURE. Dealer Package: Certain 2011 ? 2018 Model Year Sienna Vehicles Coverage for the Power Sliding Door Cable Sub-Assembly (Vehicles equipped with power sliding doors ONLY). In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a class action settlement, Toyota is announcing a Customer Support Program to provide coverage for repairs to the power sliding door cable sub-assembly. Although the power sliding door cable sub-assemblies are 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 coverage for repairs to the power sliding door cable sub-assembly. Only those repairs that are related to internal functional concerns of the power sliding door cable sub-assembly that impede the closing and/or opening operations of the power sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKE_Toyota POL192019-07-15. Service bulletin. EQUIPMENT; FUEL/PROPULSION SYSTEM. Customer Support Program: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a proposed class action settlement, Toyota is announcing a Customer Support Program to provide coverage for the fuel filler door hinge and pin. Although the fuel filler door hinge and pin are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever occurs first), we at Toyota care about each customer?s ownership experience. Toyota is providing additional coverage for repairs related to the fuel filler door hinge and pin. Only those repairs that are related to internal functional concerns of the fuel filler door hinge and pin that impede the closing and/or opening operations of the power sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKE_Dealer Packa2019-07-15. Service bulletin. EQUIPMENT; STRUCTURE. Dealer Package: Certain 2011 ? 2018 Model Year Sienna Vehicles Coverage for the Fuel Filler Door Hinge and Pin. In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a class action settlement, Toyota is announcing a Customer Support Program to provide coverage for repairs to the fuel filler door hinge and pin. Although the fuel filler door hinge and pin are 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 coverage for repairs to the fuel filler door hinge and pin. Only those repairs that are related to internal functional concerns of the fuel filler door hinge and pin that impede the closing and/or opening operations of the sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
T-SB-0068-192019-07-15. Service bulletin. FUEL/PROPULSION SYSTEM; EQUIPMENT. TSB: Some 2011 ? 2018 model year Sienna vehicles may exhibit a condition where the fuel lid door is loose or not flush against the vehicle body, which may prevent the driver side slide door from opening. This condition may be caused by a broken fuel lid door hinge. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0442-17_Rev2019-05-13. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL. TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active after the initial trial period. Once the subscription has expired the DCM (Telematics Transceiver) will be in an inactive state. In some instances, a DCM may need to be replaced even though the customer is not using the service. If registration of the replacement DCM part is attempted using the Techstream utility after the account has become inactive, the registration will fail, and messages such as ?ATX webserver is Down? or ?ATX error? will be displayed.
T-TT-0414-16-Rev2019-03-25. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; ELECTRICAL SYSTEM. TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone. ? Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ? Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
T-TT-0468-17-Rev2019-03-25. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TT: HVAC drain tube is found to be blocked/clogged.
T-SB-0044-16_Rev2019-03-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB: REVISION NOTICE February 7, 2019 Rev2: * Applicability has been updated to include 2010 - 2014 model year Matrix, 2017 - 2019 model year C-HR, 2019 model year Corolla Hatchback, and 2018 - 2019 model year Toyota vehicles. G418 The Introduction and Repair Procedure sections have been updated. March 7, 2017 Rev1: * Applicability has been updated to include 2017 model year Toyota vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0040-08. * Applicability has been updated to include applicable 2016 model year vehicles. Service Bulletin No. T-SB-0040-08 is obsolete and any printed versions should be discarded. Some 2010 - 2019 model year Toyota vehicles may exhibit paint stains after the removal of Rapgard. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard. The wrinkles may trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces, such as the hood, roof, and trunk. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0520-192019-02-19. Service bulletin. EQUIPMENT. TT: In certain cases of leaking air conditioning systems, the root cause of the leak is inadvertently overlooked, causing a repeat repair. To improve customer satisfaction and repair A/C system leaks in one dealer visit, Toyota has developed a set of guidelines for evaluating A/C system components.
T-SB-0033-14_Rev2019-02-19. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: Some vehicles in particular geographic areas may exhibit a condition where the HVAC evaporator drain hose has become obstructed with an insect nest. An insect repellent drain hose tip (ARINIX® Tip) is now available to help minimize future occurrences of this environmental condition. For some models, a new drain hose is required to properly fit the ARINIX® Tip. Follow the procedures in this bulletin for proper handling and installation of this optional service part.
T-TT-0375-152018-12-17. Service bulletin. EQUIPMENT. TT: For customer concerns of no or poor outgoing sound from the Bluetooth systems there are diagnostics in the repair manual which can be performed to diagnose the condition.
T-TT-0377-152018-12-17. Service bulletin. EQUIPMENT. TT: Some customers may experience poor outgoing Bluetooth sound quality, this can occur for various reasons. Current multimedia systems are designed with the ability to adjust Bluetooth sound quality to compensate for Echo or excessive background noise.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.