2019 Toyota Sienna Technical Service Bulletins

191 technical service bulletins (TSBs) are on record for the 2019 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.

• 10183281Oct 21, 2020Engine cooling. TT: HVAC drain tube is found to be blocked/clogged.
• 10183279Oct 21, 2020Back-over prevention (rear camera). TSB: Some 2019 model year RAV4 and RAV4 Hybrid and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1010) or Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Toyota apps fail to download. ?Bluetooth® is unable to automatically connect after key cycle. ?Abnormal microphone operation. ?Sirius XM® antenna disconnection history Diagnostic Trouble Code…
• 10183188Oct 16, 2020Equipment, Engine cooling. TSB: This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 ? 2021 model year Toyota vehicles.
• 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…
• 10179765Aug 12, 2020Equipment, Electrical system. TSB: Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic 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…
• 10179721Aug 12, 2020Electrical system. TSB: Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic 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…
• 10179750Aug 11, 2020Electrical system. TSB: Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1010) or Entune? 3.0 Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Abnormal navigation operation. ?Screen freezing. ?Intermittent rebooting. ?Abnormal clock operation. ?Abnormal Apple CarPlay® operation. ?Echoing during Apple CarPlay® phone call…
• 10179706Aug 11, 2020Electrical system. TSB: Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1010) or Entune? 3.0 Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Abnormal navigation operation. ?Screen freezing. ?Intermittent rebooting. ?Abnormal clock operation. ?Abnormal Apple CarPlay® operation. ?Echoing during Apple CarPlay® phone call…
• 10179702Aug 7, 2020Engine. TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle drivability. Specifically, we are looking at vehicle surge/hesitation condition (inconsistent acceleration) and would like to recover detailed customer voice and vehicle data.
• 10179606Aug 7, 2020Engine, Equipment. TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle drivability. Specifically, we are looking at vehicle surge/hesitation condition (inconsistent acceleration) and would like to recover detailed customer voice and vehicle data.
• 10178528Jul 31, 2020Body and structure. OBSOLETE NOTICE July 31, 2020: This bulletin is no longer applicable and is now obsolete.
• 10178524Jul 30, 2020Engine cooling. TT: HVAC drain tube is found to be blocked/clogged.
• 10178534Jul 23, 2020Electrical system. TSB: OBSOLETE NOTICE July 23, 2020: This bulletin is now obsolete. Please see T-SB-0071-20.
• 10178533Jul 23, 2020Electrical system. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0160-19. Service Bulletin No. T-SB-0160-19 is obsolete and any printed versions should be discarded. Some 2019 ? 2020 model year Toyota vehicles equipped with Entune? Audio (version 1007), Entune? Audio Plus (version 1011), or Entune? Premium Audio (version 1011) or earlier may exhibit one or more of the…
• 10178787Jul 20, 2020Electrical 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…
• 10177592Jun 12, 2020Engine. TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle drivability. Specifically, we are looking at vehicle surge/hesitation condition (inconsistent acceleration) and would like to recover detailed customer voice and vehicle data.
• 10177575Jun 1, 2020Engine. TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle drivability. Specifically, we are looking at vehicle surge/hesitation condition (inconsistent acceleration) and would like to recover detailed customer voice and vehicle data.
• 10176504May 18, 2020Electrical system, Equipment. TT: To assist with the early detection and early resolution of audio related concerns, it may be requested as part of the remanufactured head unit return to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by audio suppliers, FTS, and/or FPEs.
• 10176493May 13, 2020Equipment, Electrical system. 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 (Data Communication Module/telematics transceiver) inoperative conditions, refer to the procedure below to prevent unnecessary parts replacement.
• 10176352May 11, 2020Electrical system. TSB: OBSOLETE NOTICE May 11, 2020: This bulletin is now obsolete. Please see T-SB-0047-20.
• 10176351May 11, 2020Electrical system. TSB: OBSOLETE NOTICE May 11, 2020: This bulletin is now obsolete. Please see T-SB-0046-20.
• 10176350May 11, 2020Back-over prevention (rear camera). TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0039-19. The aforementioned bulletin is obsolete, and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding. Some 2019 model year RAV4, RAV4 Hybrid and some 2018 ?
• 10176349May 11, 2020Electrical system. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0041-19. The aforementioned bulletin is obsolete, and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding. Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1010) or Entune?
• 10176287May 8, 2020Electrical system. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0143-18. Service Bulletin No. T-SB-0143-18 is obsolete and any printed versions should be discarded. Some 2019 model year Avalon and Avalon Hybrid vehicles equipped with Entune? Audio Plus (version 1002) or Entune?
• 10174921Apr 23, 2020Equipment. TT: Due to the challenges caused by the COVID-19 virus threat, some dealers are experiencing reduced traffic into their stores and causing dealer stock to age.
• 10174896Apr 9, 2020Visibility (wipers, defrost, mirrors), Lane departure. 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.
• 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)…
• 10173989Mar 27, 2020Electrical system. TSB: Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1010) or Entune?
• 10173742Mar 4, 2020Electrical system. TSB: Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1010) or Entune?
• 10172864Feb 25, 2020Equipment. 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.
• 10172854Feb 18, 2020Equipment. TT: Some vehicles equipped with Dynamic Navigation may experience a pop-up message notifying them that their map update service will end soon. The date that is shown could be more than one year in the future. This does not indicate any issues with the vehicle, and is only informing the user of the expiration date.
• 10172837Feb 10, 2020Wheels, Steering, Brakes, Electrical system, Back-over prevention (rear camera). Some 2019 model year RAV4, RAV4 Hybrid and some 2019 ? 2020 model year Sienna vehicles equipped Audio Plus (version 1010) or Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Toyota Apps fail to download ?Bluetooth® is unable to automatically connect AFTER key cycle ?Abnormal microphone operation ?Sirius XM® antenna disconnection history Diagnostic Trouble Code (DTC)…
• 10171406Jan 27, 2020Transmission and drivetrain. TT: Currently under investigation. Please contact TAS if you have a vehicle that exhibits a leak from the Transmission Side Cover with no signs of damage or other conditions unrelated to regardless of miles or months in service. If it?s a Sunday or holiday continue with diagnosis and repair, save all parts and details, contact TAS on the next available work day and review details with TAS engineer.
• 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…
• 10171457Jan 23, 2020Equipment. 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.
• 10171450Jan 15, 2020Equipment. TSB: REVISION NOTICE January 15, 2020 Rev1: ? Applicability has been updated to include 2019 model year RAV4 and RAV4 Hybrid vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0143-18. Service Bulletin No. T-SB-0143-18 is obsolete and any printed versions should be discarded. Some 2019…
• 10171449Jan 15, 2020Equipment. TSB: OBSOLETE NOTICE January 15, 2020: This bulletin is now obsolete. Please see T-SB-0160-19.
• 10171700Jan 7, 2020Equipment. TSB: REVISION NOTICE December 20, 2019 Rev1: ? The entire bulletin has been updated. Any previous printed versions of this bulletin should be discarded. NOTE This bulletin applies to 2018 model year Sienna vehicles ONLY if T-SB-0053-19 has been performed and completed prior to performing the Software Update Procedure in this bulletin.
• 10170184Dec 13, 2019Equipment. TSB: REVISION NOTICE December 13, 2019 Rev1: ? Applicability has been updated to include several 2020 model year Toyota vehicles. ? The Required Tools & Equipment section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to…
• 10170727Dec 5, 2019Seat belts, Back-over prevention (rear camera). TT: All grades of 2018-2020 model year Mirai, Sienna, CH-R, and 2020 model year Land Cruiser, Prius, and Prius Prime vehicles are not compatible with Toyota Remote Connect app features. The Toyota Remote Connect mobile app lets you lock and unlock doors, start the engine, find your vehicle in a parking lot, and monitor guest drivers.
• 10169334Nov 18, 2019Electrical system, Equipment. 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.
• 10169333Nov 18, 2019Equipment, Electrical system. TSB: Some 2019 model year Avalon and Avalon Hybrid vehicles equipped with Entune? Audio Plus (version 1002) or Entune? Premium Audio (version 1002) or earlier may exhibit one or more of the following conditions: ? Incorrect GPS date and time ? Abnormal Bluetooth® operation ? Abnormal Wi-Fi operation ? Microphone remains on screen after voice recognition failure ? Unable to see text with headlights on (text is same…
• 10169327Nov 14, 2019Equipment. TSB: REVISION NOTICE November 14, 2019 Rev2: ? The Applicability has been updated to include 2019 model year Toyota vehicles. ? The Introduction and Repair Procedure sections have been updated. 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…
• 10169406Nov 4, 2019Transmission and drivetrain. TT: Some 2018-2020 model year UA80/UB80 transmission equipped models may experience a leak from the Transmission Side Cover. This issue is currently under investigation. Vehicles are being sought regardless of months in service or mileage. Only seeking vehicles with leaking transmissions with no other signs of damage to the side cover.
• 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…
• 10168529Oct 17, 2019Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10166023Sep 16, 2019Electrical system. TT: Some customers may experience a call failure when attempting to call a conference call number that has been saved in their phonebook (ex: ?8005550122,,,1.,2;;;2#?). This issue is caused by changes to the Bluetooth in the iOS 13 update and may be resolved in a future iOS update.
• 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…
• 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.

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