2018 Toyota Sienna Technical Service Bulletins

300 technical service bulletins (TSBs) are on record for the 2018 Toyota Sienna. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10164910Aug 19, 2019Electrical system. TT: Some vehicles may display an error message that displays "New software is not compatible with the system. Contact your dealer." after the Display Control Unit (DCU) or navigation Multimedia Extension Unit (MEU) is replaced if the Phase 3 (CarPlay) retrofit is not applied prior to replacement. Panasonic exchange MEU and DCU parts are now being shipped with Phase 3 software installed.
• 10164895Aug 9, 2019Body and structure. Dealer Package: Toyota has received a number of reports regarding the power sliding door rear lock assemblies on certain 2011 ? 2018 model year Sienna vehicles.
• 10164894Aug 9, 2019Equipment, Electrical system. TSB: REVISION NOTICE August 09, 2019 Rev2: ? Step 25 of the Software Update Procedure section has been updated with a Note. May 28, 2019 Rev1: ? The Introduction and Software Update Procedure sections have been updated and the Software Download and Extraction Procedure has been added. Any previous printed versions of this bulletin should be discarded. The procedure in this Service Bulletin is a full reformat of the…
• 10164863Aug 1, 2019Body and structure. Dealer Package: This Customer Confidence Program is a component of a class action settlement that includes 3 elements of coverage, including prospective coverage for repairs to certain sliding door parts but only those repairs that relate to internal functional concerns of those parts on certain 2011 - 2018 model year Sienna vehicles.
• 10164352Jul 16, 2019Equipment, Electrical system. TT: The new DCA-8000 Diagnostic Charger may cause your facility?s Ground Fault Circuit Interrupter (GFCI) breaker to trip. A GFCI breaker can be tripped for various reasons, one of the reasons may be related to the DCA-8000. We are investigating this issue to determine the root cause. Other reasons the GFCI breaker may trip ? Circuit demand is too high for GFCI rating ? Worn out GFCI internal contacts ? Improper…
• 10164347Jul 11, 2019Equipment, Transmission and drivetrain, Electrical system. 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…
• 10164345Jul 9, 2019Equipment. 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…
• 10164335Jul 3, 2019Wheels, Equipment. 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.
• 10164330Jul 1, 2019Transmission and drivetrain, Electrical system, Engine. TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections have been updated. October 30, 2017 Rev1: ? Applicability has been updated to include 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin…
• 10162791Jun 20, 2019Equipment. TT: Some customers may experience an Entune? update pop-up message after every key cycle.
• 10162790Jun 20, 2019Latches, locks and linkages, Body and structure. 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: ?
• 10162788Jun 20, 2019Equipment, Body and structure. 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…
• 10162787Jun 19, 2019Body and 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…
• 10162786Jun 19, 2019Body and structure, Equipment. 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…
• 10162785Jun 19, 2019Body and structure, Equipment. 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.
• 10162784Jun 19, 2019Fuel system, 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 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…
• 10162783Jun 19, 2019Equipment, Body and 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.
• 10162782Jun 19, 2019Body and structure. Dealer Package: Certain 2011 ? 2018 Model Year Sienna Vehicles Coverage for the Sliding Door Center Hinge Assembly. 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 sliding door center hinge assembly.
• 10162781Jun 19, 2019Body and structure. Dealer Package: Certain 2011 ? 2018 Model Year Sienna Vehicles Coverage for the Sliding Door Center Hinge Assembly. 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 sliding door center hinge assembly.
• 10162780Jun 19, 2019Body and structure. Dealer Package: Certain 2011 - 2018 Model Year Sienna Vehicles Sienna Sliding Door Functional Inspection. This Sienna Sliding Door Functional Inspection is one of multiple elements involved in a class action settlement. Refer to Customer Confidence Program ZKI for comprehensive information on the class action settlement and its other elements.
• 10162779Jun 19, 2019Body and 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…
• 10162778Jun 19, 2019Body and 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…
• 10162777Jun 19, 2019Body and 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.
• 10162776Jun 19, 2019Body and 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.
• 10162775Jun 19, 2019Body and structure. 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.
• 10162773Jun 19, 2019Electrical 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.
• 10162772Jun 19, 2019Body and 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.
• 10162771Jun 19, 2019Body and structure. 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.
• 10162770Jun 19, 2019Fuel 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.
• 10162769Jun 19, 2019Body and structure. 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.
• 10162768Jun 19, 2019Body and structure. 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.
• 10162766Jun 19, 2019Latches, locks and 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: ?
• 10162765Jun 19, 2019Latches, locks and 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…
• 10162764Jun 19, 2019Latches, locks and 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.
• 10162763Jun 19, 2019Latches, locks and 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…
• 10161542May 28, 2019Equipment, 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.
• 10161540May 21, 2019Equipment, Electrical system. 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…
• 10162249May 14, 2019Equipment. 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.
• 10161517May 6, 2019Equipment. 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.
• 10161516May 6, 2019Electrical system, Equipment. 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.
• 10161515May 6, 2019Equipment, Electrical system. 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.
• 10162233May 1, 2019Transmission and drivetrain. 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…
• 10159739Apr 30, 2019Equipment. 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.
• 10159730Apr 18, 2019Transmission and drivetrain, Equipment, 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…
• 10159729Apr 18, 2019Transmission and drivetrain, Equipment, 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…
• 10159728Apr 18, 2019Equipment, Transmission and drivetrain, Engine. Dealer Email: 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…
• 10159727Apr 18, 2019Engine, Equipment, Transmission and drivetrain. Region Email: 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…
• 10159725Apr 17, 2019Visibility (wipers, defrost, mirrors), Lane departure, Equipment. TT: The blind spot monitor (BSM) sensor angle inspection is used to confirm that the BSM sensor is within the specified angle before performing axis beam adjustment. When used in conjunction with the repair manual, these BSM tips leverage SSTs and readily available tools to support sensor angle confirmation in varying shop environments.
• 10159724Apr 17, 2019Equipment, Electrical system. TSB: Some 2018 ? 2019 model year Toyota vehicles equipped with the Entune? 3.0 Premium Audio 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. Before attempting to perform a map update, the…
• 10159699Apr 5, 2019Electrical system, Engine. Technical Instructions: Update 4/5/2019: Note added on p. 6. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN K0A ENGINE ECU SOFTWARE UPDATE CERTAIN 2018 CAMRY & 2018 SIEN

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