2012 Toyota Sienna Technical Service Bulletins

372 technical service bulletins (TSBs) are on record for the 2012 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.

• 10188913Feb 3, 2021Equipment. TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2021 model year vehicles may be available provided the requests meet the criteria listed in this Service Bulletin. Follow the Procurement Procedure in this bulletin to request a replacement certification label or VIN plate.
• 10187265Jan 21, 2021Vehicle speed control, Brakes. TSB: Some 2010 ? 2020 model year Sienna vehicles may exhibit a condition where the front door glass run on either the right-hand or left-hand side comes loose from the door channel during window operation. Follow the Repair Procedure in this bulletin to address this condition.
• 10187241Dec 14, 2020Brakes, Back-over prevention (rear camera). TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
• 10186195Dec 14, 2020Brakes. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
• 10184560Nov 24, 2020Brakes. TSB: Some 2011 ? 2020 model year Sienna vehicles may exhibit a vibration/pulsation from the front brakes that can be felt in the brake pedal while lightly applying the brake pedal. Follow the Repair Procedure in this bulletin to address this condition.
• 10183281Oct 21, 2020Engine cooling. TT: HVAC drain tube is found to be blocked/clogged.
• 10182983Oct 12, 2020Equipment, Electrical system, Steering. 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…
• 10178524Jul 30, 2020Engine cooling. TT: HVAC drain tube is found to be blocked/clogged.
• 10177782Jun 23, 2020Suspension. TSB: OBSOLETE NOTICE June 23, 2020: This bulletin is now obsolete. Please see T-SB-0063-20.
• 10177781Jun 23, 2020Wheels. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. ST005-01, SU001-08, and T-SB-0391-08. The aforementioned bulletins are obsolete, and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding. This Service Bulletin provides best practice procedures for vehicle pulling complaint, diagnosis, and repair…
• 10177599Jun 3, 2020Engine cooling. These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
• 10174891Apr 7, 2020Equipment. TSB: OBSOLETE NOTICE April 07, 2020: This bulletin is now obsolete. Please see T-SB-0032-20. Replacement Certification Labels and VIN Plates
• 10174890Apr 6, 2020Equipment. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. PG021-88, PG015-89, PG0015-90, PG002-91, PG002-93, PG005-97, PG007-01, PG007-07, PG006-01, PG004-97, T-SB-0144-08, and T-SB-0304-17. The aforementioned bulletins are obsolete, and any printed versions should be discarded. Replacement certification labels (the vinyl label installed on the driver door or door post)…
• 10173988Mar 26, 2020Equipment, Back-over prevention (rear camera). TT: For proper calibration of the millimeter wave radar sensor, the vehicle must be on a level surface. If a level surface is not available, this tech tip should be used in conjunction with the repair manual to set the angle of the front millimeter wave radar sensor and reflector height before performing beam axis adjustment.
• 10172843Feb 12, 2020Equipment. OBSOLETE NOTICE February 12, 2020: This bulletin is now obsolete. Please see T-SB-0010-20.
• 10172826Feb 6, 2020Equipment. TSB: Some 2004 ? 2017 model year Toyota vehicles may exhibit odors naturally occurring from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to minimize the odors experienced
• 10171405Jan 27, 2020Equipment. 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…
• 10169334Nov 18, 2019Equipment, Electrical 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.
• 10168545Oct 23, 2019Equipment. 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.
• 10168544Oct 23, 2019Equipment. 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.
• 10168543Oct 23, 2019Equipment. 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.
• 10168542Oct 23, 2019Equipment. 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.
• 10168537Oct 21, 2019Steering. 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…
• 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.
• 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.
• 10164346Jul 9, 2019Equipment. TSB: OBSOLETE NOTICE July 9, 2019: This bulletin is now obsolete. Please see T-SB-0080-19.
• 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…
• 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, 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…
• 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.
• 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, 2019Equipment, Fuel system. 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: ?

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