Service bulletins for the 2018 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.
300 on file from NHTSA, as of 2026-10-19.
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| ZKI_Dealer Packa | 2019-07-15. 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. |
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| ZKI_Dealer Packa | 2019-07-15. 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 Lette | 2019-07-15. 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 Email | 2019-07-15. 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 Email | 2019-07-15. 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-TT-0549-19 | 2019-07-15. Service bulletin. ELECTRICAL SYSTEM. TT: The new 12V Battery Warranty Testers (DSS-5000 & DCA-8000) require certain information to generate a test result and warranty code. Below is an explanation of what information is required when testing a 12V battery on the new Warranty Battery Testers. |
| T-SB-0141-18_Rev | 2019-07-15. 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-0069-19 | 2019-07-15. 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-0068-19 | 2019-07-15. 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-0067-19 | 2019-07-15. 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-0066-19 | 2019-07-15. 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 POL17 | 2019-07-15. 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 Packa | 2019-07-15. 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 POL17 | 2019-07-15. 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 Packa | 2019-07-15. 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-0543-19 | 2019-07-08. Service bulletin. EQUIPMENT. TT: While performing the retrofit TSB, and creating the USB stick, it is critical that all files that are included in the .zip folder are extracted in the root directory (not in any folders) of the USB drive. |
| ZJC-Toyota POL19 | 2019-07-08. Service bulletin. POWER TRAIN. Customer Support Program Bulletin: Toyota has received reports indicating potential symptoms, such as a whine noise from the transmission while driving, harsh shifting, reduced power, and master warning light/check engine light illumination, in the subject vehicles that are equipped with a model UA80 transmission. There is a possibility that a washer tab, designed to prevent the loosening of a nut inside the affected transmissions, was not sufficiently bent during assembly. This could lead to the nut loosening and, over time, lead to the symptoms described above. |
| T-SB-0055-19_Rev | 2019-06-24. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. TSB: Entune? 3.0 Audio is now available with additional features such as Apple CarPlay® and Amazon Alexa? for 2018 model year Camry, Camry Hybrid, and Sienna vehicles. Follow the Software Update Procedure in this bulletin to install these new features. NOTE Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ. |
| T-SB-0057-19_Rev | 2019-06-24. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TSB: REVISION NOTICE May 24, 2019 Rev1: ? The entire bulletin has been updated. Any previous printed versions of this bulletin should be discarded. The procedure in this Service Bulletin is a full reformat of the multimedia system. Failure to follow the procedure exactly as written may cause damage to the head unit. This reformatting changes the system from a Phase 2 to a Phase 3 system, which includes Apple CarPlay® and Amazon Alexa?. This reformat requires all linked files and folders extracted from the zip file to be placed onto the root directory of the USB flash drive, otherwise damage to the head unit will occur. NOTE ? This procedure is a two-part process that includes an automatic file download from the USB flash drive once it is inserted into the USB port. Once the headlight flash step is performed, the system will begin the installation of the downloaded files. ? Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ. NOTICE Failure to follow the Software Update Procedure exactly as written may cause damage to the head unit. |
| T-SB-0057-19 | 2019-06-24. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TSB: Entune? 3.0 Premium Audio is now available with additional features such as Apple CarPlay® and Amazon Alexa? for 2018 model year Camry, Camry Hybrid, and Sienna vehicles. Follow the Software Update Procedure in this bulletin to install these new features. NOTE Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ. NOTICE Failure to follow the Software Update Procedure exactly as written may cause damage to the head unit. |
| T-SB-0055-19 | 2019-06-24. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TSB: Entune? 3.0 Audio is now available with additional features such as Apple CarPlay® and Amazon Alexa? for 2018 model year Camry, Camry Hybrid, and Sienna vehicles. Follow the Software Update Procedure in this bulletin to install these new features. NOTE Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ. |
| T-SB-0053-19 | 2019-06-24. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. TSB: Entune? 3.0 Audio Plus is now available with additional features such as Apple CarPlay® and Amazon Alexa? for 2018 model year Sienna vehicles. Follow the Software Update Procedure in this bulletin to install these new features. NOTE Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ. |
| T-TT-0442-17_Rev | 2019-05-13. 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. |
| ZJC_Toyota POL19 | 2019-05-13. Service bulletin. POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. Customer Support Program Bulletin: Toyota has received reports indicating potential symptoms, such as a whine noise from the transmission while driving, harsh shifting, reduced power, and master warning light/check engine light illumination, in the subject vehicles that are equipped with a model UA80 transmission. There is a possibility that a washer tab, designed to prevent the loosening of a nut inside the affected transmissions, was not sufficiently bent during assembly. This could lead to the nut loosening and, over time, lead to the symptoms described above |
| ZJC_Dealer Packa | 2019-05-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. Dealer Packet: Toyota has received reports about potential symptoms, such as a whine noise from the transmission while driving, harsh shifting, reduced power, and master warning light/check engine light illumination, in the subject vehicles that are equipped with a model UA80 transmission. There is a possibility that a washer tab, designed to prevent the loosening of a nut inside the affected transmissions, was not sufficiently bent during assembly. This could lead to the nut loosening and, over time, lead to the symptoms described above. Although the UA80 transmission equipped in the subject vehicles is covered by Toyota?s New Vehicle Limited Warranty for 5 years or 60,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Thus, Toyota is providing coverage for repairs related to damage to the UA80 transmission caused by the previously mentioned loose washer tab and resulting in the symptoms described above. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.