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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
ZKI_Dealer Packa2019-07-15. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR. Dealer Package: Certain 2011 - 2018 Model Year Sienna Vehicles Coverage for Internal Functional Concerns of Certain Sliding Door Parts. In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a Sienna sliding door class action settlement, Toyota is announcing a Customer Confidence Program. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKI_Dealer Packa2019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE. Dealer Package: Certain 2011 - 2018 Model Year Sienna Vehicles Coverage for Internal Functional Concerns of Certain Sliding Door Parts. In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a Sienna sliding door class action settlement, Toyota is announcing a Customer Confidence Program. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKI_Region Lette2019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE. Region Letter: Certain 2011 - 2018 Model Year Sienna Vehicles Coverage for Certain Internal Functional Concerns of Certain Sliding Door Parts. Specific information for Region support is provided below. In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a Sienna sliding door class action settlement, Toyota is announcing a Customer Confidence Program. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKI_Dealer Email2019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE. Dealer Email: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a Sienna sliding door class action settlement, Toyota is announcing a Customer Confidence Program. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKI_Region Email2019-07-15. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR. Region Email: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a Sienna sliding door class action settlement, Toyota is announcing a Customer Confidence Program. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
T-SB-0141-18_Rev2019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE. TSB: REVISION NOTICE June 19, 2019 Rev1: ? The Parts Information section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2011 ? 2018 model year Sienna vehicles may exhibit a condition where the power slide door cable becomes separated, causing the power slide door to become inoperative. Follow the Repair Procedure in this bulletin to reduce this condition.
T-SB-0069-192019-07-15. Service bulletin. STRUCTURE:BODY:DOOR. TSB: Some 2011 ? 2018 model year Sienna customers may express concern about their vehicle?s slide door performance. Upon customer request, the Inspection Procedure in this bulletin may be performed for a functional check of the slide door system.
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-SB-0067-192019-07-15. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR. TSB: Some 2011 ? 2018 model year Sienna vehicles equipped with power slide doors may exhibit a condition where the slide door center hinge has corroded, causing the power slide door to not fully open or close during operation. Follow the Inspection Procedure and Repair Procedure in this bulletin to address this condition.
T-SB-0066-192019-07-15. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR. TSB: Some 2011 ? 2018 model year Sienna vehicles equipped with manual doors may exhibit a condition where the slide door center hinge has corroded, causing the slide door to become difficult to operate while opening or closing. Follow the Inspection and Repair Procedures in this bulletin to address this condition.
ZH5_Toyota POL172019-07-15. Service bulletin. LATCHES/LOCKS/LINKAGES. Customer Support Program: Toyota has received a number of reports regarding the power sliding door rear lock assemblies on certain 2011?2018 model year Sienna vehicles. In these reports, corrosion on the position sensor of the left and/or right power sliding door rear lock assembly caused that door to exhibit one or more of the abnormal operations described below: ? During power mode closing operation, as the power sliding door reaches the nearly closed position, the door reverses and moves toward the open position. ? During power mode closing operation, the power sliding door cannot completely close and latch. ? The power mode closing operation of the power sliding door is inoperative.
ZH5_Dealer Packa2019-07-15. Service bulletin. LATCHES/LOCKS/LINKAGES. Dealer Package: June 19, 2019 Information about a proposed class action settlement has been added. ? Toyota has expanded the covered vehicle population. ? Toyota has extended the coverage period by one additional year. 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 extend the warranty coverage for the power sliding door rear lock assemblies on certain 2011 ? 2018 model year Sienna vehicles.
ZH4_Toyota POL172019-07-15. Service bulletin. LATCHES/LOCKS/LINKAGES. Customer Support Program: Toyota has received a number of reports regarding sliding door front lock assemblies on certain 2011?2018 model year Sienna vehicles. In these reports, during the closing operation of the left and/or right side sliding door, the door would not completely close and latch due to corrosion on the latch lever pin of the door?s front lock assembly.
ZH4_Dealer Packa2019-07-15. Service bulletin. LATCHES/LOCKS/LINKAGES. Dealer Package: June 19, 2019 Information about a proposed class action settlement has been added. ? Toyota has expanded the covered vehicle population. ? Toyota has extended the coverage period by one additional year. 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 extend the warranty coverage for the sliding door front lock assemblies on certain 2011 ? 2018 model year Sienna vehicles.
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.
Sienna Sliding D2019-04-15. Service bulletin. STRUCTURE:BODY:DOOR. Dealer Daily Message: Sienna Sliding Door Certain 2011 ? 2018 Model Year Sienna Vehicles ? A court has preliminarily approved a proposed settlement regarding sliding doors on certain 2011-2018 model year Sienna vehicles. ? The proposed settlement has yet to receive final approval by the court. However, the proposed settlement allows Toyota to implement the Customer Confidence Program (as outlined in the settlement agreement) in advance of the proposed settlement becoming final. Accordingly, Toyota has decided to implement certain components of the Customer Confidence Program in advance of final approval. These components are listed below and Toyota estimates that they will be available starting in April 2019.1 At that time, Toyota will issue a notice to all dealers advising them that these components have become available. Pursuant to the proposed settlement?s Customer Confidence Program: o Coverage for repairs to the power sliding door cable sub-assembly, sliding door center hinge assembly, and fuel door will be available for 10 years from the subject vehicles date of first use, regardless of mileage. o Warranty Enhancement Program ZH4 will be expanded to include certain 2016 ? 2018 model year Sienna vehicles. o Warranty Enhancement Program ZH5 will be expanded to include certain 2015 ? 2018 model year Sienna vehicles. o Warranty Enhancement Programs ZH4 and ZH5, which are applicable for nine years from the subject vehicles date of first use regardless of mileage, will be extended by one additional year regardless of mileage. ? The court has ordered that the 3rd Party Settlement Notice Administrator begin notifying class members, including by direct mail notice (see images on next page), on March 1, 2019, to inform current and former vehicle owners and lessees of the proposed settlement.
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-SB-0141-182019-01-07. Service bulletin. STRUCTURE:BODY:DOOR. TSB: Some 2011 ? 2018 model year Sienna vehicles may exhibit a condition where the power sliding door cable becomes separated, causing the power sliding door to become inoperative. Follow the Repair Procedure in this bulletin to reduce this condition.
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-0356-15 Rev2018-12-17. Service bulletin. LATCHES/LOCKS/LINKAGES. TT: Sliding Door will not latch in the closed position due to either front and/or rear lock malfunctioning. Please see link references of video for example condition and diagnosis instruction.
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.