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.

• 10197472Mar 28, 2019Equipment. Technician Certification Requirements.
• 10158587Mar 14, 2019Engine, Electrical system. Dealer Letter: The engine ECUs in the subject vehicles are equipped with software to monitor the rear oxygen sensors. Under a specific condition, this software may not detect a malfunctioning sensor due to an error in the software. As a result, affected vehicles do not meet certain onboard diagnostic (OBD) regulations.
• 10158568Mar 1, 2019Body and structure. 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…
• 10155248Feb 28, 2019Electrical system. TT: Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. These settings may need to be reapplied any time the phone is paired to a new head unit, a phone update is applied, or the phone is un-paired and re-paired.
• 10155247Feb 28, 2019Equipment, 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…
• 10155238Feb 25, 2019Equipment. TT: HVAC drain tube is found to be blocked/clogged.
• 10155233Feb 15, 2019Equipment, Electrical system. TSB: This bulletin details the supplemental procedure to confirm Telematics Data Communication Module (DCM) activation for applicable 2017 ? 2019 model year Toyota vehicles after the process is initiated by Techstream. The steps outlined in this bulletin include: ? Techstream Messages ? DCM Activation Confirmation ? Vehicle Confirmation
• 10154800Feb 7, 2019Equipment. 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…
• 10154797Feb 6, 2019Equipment. TT: The microphone circuit passes through the DCM before reaching the radio/navigation system. To simplify the diagnosis of the microphone, Safety Connect SOS button lights, and DCM (Telematics transceiver) inoperative conditions, refer to the procedure below to prevent unnecessary parts replacement.
• 10153282Jan 16, 2019Electrical system. TSB: Some 2016 - 2018 model year Prius and Tacoma, 2017 - 2018 model year Prius Prime and Sienna, and 2018 model year Camry and Camry Hybrid vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P261093 (ECM/PCM Engine Off Timer Performance No Operation) present. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this…
• 10153246Jan 16, 2019Engine cooling. TT: The current engine active test ?Control the Injection Mode? is not operating as desired when controlling the direct injectors manually on 2GR-FKS engines. When direct injection is started and then stopped using the active test, current ECU logic does not turn off the direct injectors and can cause DTCs P017200, P017500 and P0160300. To avoid this condition, technicians should raise engine RPM when changing back…
• 10153265Jan 4, 2019Equipment. 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.
• 10153241Dec 20, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10153236Dec 18, 2018Equipment. TT: The microphone circuit passes through the DCM before reaching the radio/navigation system. To simplify the diagnosis of the microphone, Safety Connect SOS button lights, and DCM (Telematics transceiver) inoperative conditions, refer to the procedure below to prevent unnecessary parts replacement.
• 10153235Dec 17, 2018Transmission and drivetrain. TSB: Some 2017 ? 2018 model year Highlander and Sienna vehicles may exhibit a whine noise while driving, a harsh shift, MIL ON, or reduced power. The following Diagnostic Trouble Codes (DTCs) may be present. ? P07457F ? P07757F ? P07957F ? P28077F ? P28167F ? P08BA7F ? P27137F ? P07407E ? P27567F ? P211904 ? P071531 For transaxles within the specified dates that meet the required symptoms, a remanufactured…
• 10153204Dec 10, 2018Forward collision avoidance, Equipment. TT: When adjusting the Forward Recognition Camera on vehicles with Toyota Safety Sense, it can be difficult to print the repair manual target to the proper size.
• 10153195Dec 4, 2018Equipment. TT: All grades of 2018-2019 model year Mirai and Sienna and 2019 model year CH-R vehicles are not compatible with Entune? 3.0 Remote Connect app features. The Toyota Entune? 3.0 Remote Connect mobile app lets you lock and unlock doors, start the engine, find your vehicle in a parking lot, and monitor guest drivers.
• 10152554Nov 26, 2018Body and structure. 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.
• 10152197Nov 15, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10152190Nov 14, 2018Latches, locks and linkages. TSB: REVISION NOTICE November 14, 2018 Rev1: ? The Diagnosis Procedure and Repair Procedure sections have 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 slide door?s ?power or manual ? front and rear latches may not latch simultaneously due to corrosion on the latch lever pin of the front lock assembly…
• 10152174Nov 9, 2018Equipment. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0285-17. ? Applicability has been updated to include 2019 model year Camry and Camry Hybrid vehicles and 2018 ? 2019 model year Mirai and Sienna vehicles. ? The entire bulletin has been updated. Service Bulletin No. T-SB-0285-17 is obsolete and any printed versions should be discarded. Some 2018 model year Camry…
• 10152167Nov 2, 2018Equipment. TSB: REVISION NOTICE November 2, 2018 Rev1: ? The Software Update Procedure has been updated. Any previous printed versions of this bulletin should be discarded. Some 2018 model year Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1028 or earlier) may exhibit one or more of the following conditions: ? ?Preparing to connect to the Internet? pop-up will not clear ? WiFi hotspot times out ? App title is…
• 10152618Oct 31, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10152617Oct 31, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10152596Oct 11, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10152589Oct 5, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10150015Sep 12, 2018Equipment. 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…
• 10144752Sep 5, 2018Seats. Service Bulletin sent to all dealers to inspect L-track bolts for correct torque and to incorporate torque check as part of regular maintenance
• 10145749Aug 31, 2018Equipment. Technical Service Bulletin: OBSOLETE NOTICE: July 31, 2018: This bulletin is now obsolete. Please see T-SB-0304-17.
• 10145748Aug 31, 2018Equipment. Technical Service Bulletin: OBSOLETE NOTICE: July 31, 2018: This bulletin is now obsolete. Please see T-SB-0304-17.
• 10145745Aug 29, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10145739Aug 22, 2018Visibility (wipers, defrost, mirrors), Lane departure. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
• 10149996Aug 17, 2018Lane departure. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
• 10149197Aug 17, 2018Lane departure. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
• 10149985Aug 15, 2018Engine. TSB: REVISION NOTICE August 15, 2018 Rev1: ? The Applicability has been updated to include 2018 model year Highlander, Sienna, and Tacoma vehicles. ? The Introduction and Warranty Information sections have been updated. Any previous printed versions of this bulletin should be discarded. Some 2GR-FKS-equipped Camry (2018 model year), Highlander, Sienna (both 2017 ? 2018 model year), and Tacoma (2016 ? 2018 model…
• 10149186Aug 15, 2018Engine. TSB: REVISION NOTICE August 15, 2018 Rev1: ? The Applicability has been updated to include 2018 model year Highlander, Sienna, and Tacoma vehicles. ? The Introduction and Warranty Information sections have been updated. Any previous printed versions of this bulletin should be discarded. Some 2GR-FKS-equipped Camry (2018 model year), Highlander, Sienna (both 2017 ? 2018 model year), and Tacoma (2016 ? 2018 model…
• 10145726Aug 2, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10145724Aug 1, 2018Equipment. TSB: Some 2018 model year Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1028 or earlier) may exhibit one or more of the following conditions: ? ?Preparing to connect to the Internet? pop-up will not clear ? WiFi hotspot times out ? App title is missing letters in French ? Unable to load all contacts on Android 8.0 ? Incorrect update history showing ? Slow XM response ? Intermittent blank screen ?…
• 10143953Jul 31, 2018Equipment. TSB: REVISION NOTICE July 31, 2018 Rev2: ? The Supersession Notice has been updated. January 11, 2018 Rev1: ? The Supersession Notice has been updated. Any previous printed versions of this bulletin should be discarded. 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…
• 10143948Jul 26, 2018Engine cooling. TSB: Some 2016 ? 2018 model year Tacoma, 2017 ? 2018 model year Sienna, Highlander, and 2018 model year Camry vehicles equipped with a 2GR-FKS engine may exhibit an engine oil leak from the cam sensor bolt hole(s). Follow the Repair Procedure in this bulletin to address this condition.
• 10143942Jul 23, 2018Equipment. TSB: OBSOLETE NOTICE July 20, 2018: This bulletin is now obsolete. Please see T-SB-0068-18.
• 10143940Jul 20, 2018Electrical system. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0235-17. ? Applicability has been updated to include 2019 model year Toyota vehicles. Service Bulletin No. T-SB-0235-17 is obsolete and any printed versions should be discarded.
• 10143927Jul 6, 2018Equipment. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0043-14. ? Applicability has been updated to include 2017 ? 2018 model year Toyota vehicles. Service Bulletin No. T-SB-0043-14 is obsolete and any printed versions should be discarded. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once…
• 10141609May 24, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements.
• 10141583May 15, 2018Electrical system. TT: Some customers may experience issues using Entune or Scout functions of the head unit. The following is a diagnostic supplement to assist in understanding how to diagnose this system.
• 10141582May 14, 2018Seats. TT: Some vehicles may experience a condition in which the 2nd row seat, with center seat, exhibits a chirp/squeak noise from the rear seat latches (floor area). This condition is present while driving over rough or bumpy roads. Upon further inspection, after removal of the LH 2nd row seat, the rear inboard and outboard strikers may show signs of the coating peeling off as shown in Fig.2 and Fig.3.
• 10141576May 10, 2018Equipment. TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active. The trail period of service is provided upon the vehicle purchase. 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.
• 10141575May 10, 2018Brakes. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0045-14. * Applicability has been updated to include 2018 model year Sienna vehicles. * The entire bulletin has been updated. Service Bulletin No. T-SB-0045-14 is obsolete and any printed versions should be discarded. Some 2011 - 2018 model year Sienna vehicles may exhibit a vibration/pulsation from the front…
• 10152121Mar 21, 2018Equipment. TSB: OBSOLETE NOTICE March 21, 2018: This bulletin is now obsolete. Please see T-SB-0279-17.
• 10152109Mar 9, 2018Equipment. TT: Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. These settings may need to be reapplied any time the phone is paired to a new head unit, a phone update is applied, or the phone is un-paired and re-paired.

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