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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By component
By trouble code
By topic
| T-TT-0615-20 | 2020-07-27. Service bulletin. ENGINE. 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. |
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| T-TT-0611-20 | 2020-06-22. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 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. |
| T-TT-0516-18_Rev | 2020-06-22. Service bulletin. EQUIPMENT; 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. |
| T-SB-0039-19 Obs | 2020-06-15. Service bulletin. ELECTRICAL SYSTEM. TSB: OBSOLETE NOTICE May 11, 2020: This bulletin is now obsolete. Please see T-SB-0047-20. |
| T-SB-0041-19 Obs | 2020-06-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: OBSOLETE NOTICE May 11, 2020: This bulletin is now obsolete. Please see T-SB-0046-20. |
| T-SB-0047-20 | 2020-06-15. Service bulletin. BACK OVER PREVENTION. 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 The aforementioned bulletin is obsolete, and any printed versions should be discarded.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 ? 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) B15FE ?No outgoing voice during phone calls when using Apple CarPlay® ?Incoming calls incorrectly shown on the Multi-information Display (MID) when using Apple CarPlay® ?CAN networking DTC B1321 ?Volume inoperative after using Siri® ?Unable to adjust the treble audio setting ?Song information flickering ?Unable to select Sirius XM® music genre by voice recognition ?Noise when hanging up call on handset ?Transferred contacts do NOT match the number of handset contacts ?Sirius XM® sound slow to start ?Abnormal Toyota Apps and Scout Operation Some 2020 model year Prius, Prius Prime, some 2019 model year RAV4, RAV4 Hybrid, and some 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1195), Premium Audio (version 1195) or Navigation (version 1035) or earlier may exhibit one or more of the following conditions:?Unable to play audio source after incoming call ?Software enhancements ?Intermittent rebooting ?Unable to register Bluetooth® devices from Bluetooth® Audio Mode ?Unable to pair Android? devices after Google? apps update ?Unable to access camera diagnosis system ?USB audio does not resume ?Intermittent Bluetooth® disconnection ?Abnormal voice recognition operation ?Phone call history does not |
| T-SB-0046-20 | 2020-06-15. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. 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? 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 ?Abnormal Pandora® operation after answering WhatsApp phone call ?Alexa® app inoperative when using iOS devices Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1026) or Entune? 3.0 Premium Audio (version 1026, 1031) or earlier may exhibit one or more of the following conditions: ?Intermittent rebooting ?Navigation location inaccurate ?Too many or inconvenient U-turns ?Inaccurate speed categories ?Inaccurate search matches ?Flashing map update screen Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1050) or Entune? 3.0 Premium Audio (version 1050) or earlier may exhibit one or more of the following conditions: ?Intermittent rebooting ?Pixelated screen during phone calls when using Apple CarPlay® Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? Premium Audio (Navigation version 1030 or 1040) or earlier may exhibit one or more of the following conditions: ?Navigation expiration pop-up that is more than a year in the future ?Destination ETA calculation doesn't account for time zone change or daylight-saving time A software update is now available to addre |
| T-SB-0055-19 Obs | 2020-06-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB: OBSOLETE NOTICE May 01, 2020: This bulletin is now obsolete. Please see T-SB-0044-20. |
| T-SB-0044-20 | 2020-06-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0055-19. Service Bulletin No T-SB-0055-19 is obsolete and any printed versions 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?. The 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. |
| T-TT-0606-20 | 2020-05-11. Service bulletin. EQUIPMENT. 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. Due to this situation, dealers are reminded and recommended to follow the Long-Term Vehicle Storage Guidelines outlined in T-SB-0009-19 and other Service Bulletin publications to ensure customers receive their vehicles in a fresh and well maintained condition Please ensure that both Sales and Service at your dealership are aware of these guidelines and are following the recommended maintenance and storage processes and procedures to ensure the highest customer satisfaction with their new vehicle purchase. |
| T-TT-0537-19_Rev | 2020-05-11. Service bulletin. VISIBILITY; 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. |
| T-SB-0304-17 Obs | 2020-05-11. Service bulletin. EQUIPMENT. TSB: OBSOLETE NOTICE April 07, 2020: This bulletin is now obsolete. Please see T-SB-0032-20. Replacement Certification Labels and VIN Plates |
| T-SB-0032-20 | 2020-05-11. Service bulletin. EQUIPMENT. 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) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2020 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. |
| T-SB-0041-19_Rev | 2020-04-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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 ?Abnormal Pandora® operation after answering WhatsApp phone call ?Alexa® app inoperative when using iOS devices Some 2018 ? 2019 Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1026) or Entune? 3.0 Premium Audio (version 1026, 1031) or earlier may exhibit one or more of the following conditions: ?Intermittent rebooting ?Navigation location inaccurate ?Too many or inconvenient U-turns ?Inaccurate speed categories ?Inaccurate search matches ?Flashing map update screen Some 2018 ? 2019 Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1050) or Entune? 3.0 Premium Audio (version 1050) or earlier may exhibit one or more of the following conditions: ?Intermittent rebooting ?Pixelated screen during phone calls when using Apple CarPlay® A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to update the software. |
| T-SB-0052-18_Rev | 2020-04-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Some 2018 model year Camry, Camry Hybrid, and Sienna Japan-produced vehicles equipped with Entune? 3.0 Audio (version 1000) or earlier may exhibit one or both of the following conditions: ?Bluetooth® continuously connects and disconnects ?Inoperative Entune? voice recognition Some 2018 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio (version 1021) or earlier may exhibit one or more of the following conditions: ?Unable to update radio ?Software Information screen displays in French ?Phone Number Favorites missing from Home screen ?Intermittent radio freezing ?Terms of Service has garbled characters ?Incorrect Entune? application is recommended for installation on the phone after Bluetooth® pairing ?Certain apps disappear when reordered Some 2018 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio (version 1022) or earlier may exhibit one or more of the following conditions: ?Intermittent ?There Are No Applications Available? pop-up ?Incoming voice is muted during phone call?Cancel button inoperative while downloading apps ?Voice recognition for iPod is inoperative after adding playlist to device ?Intermittent Bluetooth audio connection ?Software version does not update if the IG is turned off during software update ?Apps version is not displayed ?USB screen is not available ?Update history shows UTC date rather than time-zone-corrected date ?Update history is temporarily not displayed ?Abnormal voice recognition operation during hands-free phone call ?Incorrect phone book sorting ?Difficult to read the DCM status when dark theme selected ?Entune? update pop-up appears after downloading and installing Entune? A software update is now available to address these conditions, while providing other functional and security enhancements. |
| T-SB-0041-19_Rev | 2020-04-13. Service bulletin. ELECTRICAL 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 ?Abnormal Pandora® operation after answering WhatsApp phone call ?Alexa® app inoperative when using iOS devices ?Intermittent rebooting ?Navigation location inaccurate ?Too many or inconvenient U-turns ?Inaccurate speed categories ?Inaccurate search matches ?Flashing map update screen A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to update the software. |
| T-TT-0600-20 | 2020-03-30. Service bulletin. EQUIPMENT:ELECTRICAL. 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. |
| T-TT-0594-20_Rev | 2020-03-30. Service bulletin. EQUIPMENT:ELECTRICAL. 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. |
| T-SB-0039-19_Rev | 2020-03-30. Service bulletin. PARKING BRAKE; BACK OVER PREVENTION; ELECTRICAL SYSTEM; WHEELS; STEERING. 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) B15FE?No outgoing voice during phone calls when using Apple CarPlay® ?Incoming calls incorrectly shown on the Multi-information Display (MID) when using Apple CarPlay® ?CAN networking DTC B1321 ?Volume inoperative AFTER using Siri® ?Unable to adjust the treble audio setting ?Song information flickering ?Unable to select Sirius XM® music genre by voice recognition ?Noise when hanging up call on handset ?Transferred contacts do NOT match the number of handset contacts ?Sirius XM® sound slow to start ?Abnormal Toyota Apps and Scout Operation ?Some vehicles equipped with Audio Plus (version 1195), Premium Audio (version 1195) or Navigation (version 1035) or earlier may exhibit one or more of the following conditions: ?Unable to play audio source after incoming call ?Software enhancements ?Intermittent rebooting ?Unable to register Bluetooth® devices from Bluetooth® Audio Mode ?Unable to pair Android? devices after Google? apps update ?Unable to access camera diagnosis system ?USB audio doesn?t resume ?Intermittent Bluetooth® disconnection ?Abnormal voice recognition operation?Phone call history does not update ?Bluetooth® loses connection after USB connection is made ?Navigation inoperative ?Microphone disconnected pop-up message ?Clock not displayed on the map screen ?Intermittent phone ringing with no incoming phone call ?Clock format changes from 12 ? 24 hours intermittently ?Screen intermittently goes blank ?Sound changes from one speake |
| T-SB-0039-19_Rev | 2020-02-24. Service bulletin. EQUIPMENT. 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. Some 2019 model year RAV4, RAV4 Hybrid, and 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) B15FE ? No outgoing voice during phone calls when using Apple CarPlay® ? Incoming calls incorrectly shown on the multi-information display (MID) when using Apple CarPlay® ? CAN networking DTC B1321 ? Volume inoperative AFTER using Siri® ? Unable to adjust the treble audio setting ? Song information flickering ? Unable to select Sirius XM® music genre by voice recognition ? Noise when hanging up call on handset ? Transferred contacts do NOT match the number of handset contacts ? Sirius XM® sound slow to start ? Abnormal Toyota Apps and Scout Operation |
| T-TT-0520-19_Rev | 2020-02-18. Service bulletin. EQUIPMENT. 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. |
| T-TT-0580-19_Rev | 2020-02-18. Service bulletin. POWER TRAIN. 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. |
| T-SB-0008-20 | 2020-02-18. Service bulletin. EQUIPMENT. 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 next service interval. Follow the Repair Information in this bulletin to determine if the concern in question is a fluid leak or fluid seep and review the Repair Procedure section to address the condition. NOTE This bulletin applies to ALL powertrain fluids excluding fuel and coolant. |
| T-TT-0470-17_Rev | 2020-01-27. Service bulletin. SEAT BELTS; BACK OVER PREVENTION. 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. |
| T-SB-0047-19_Rev | 2020-01-13. Service bulletin. EQUIPMENT. 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 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 head unit?s expiration date must be checked. If the expiration date is still valid, a license key may be generated without the use of an activation card number. Updating the maps without the use of an activation card number is considered an Embedded Navigation Update (refer to pg. 9) and performing this process does not extend the duration of telematic map services. If the head unit?s expiration date is expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an activation number. Utilizing an activation number will initiate a Dynamic Navigation Update (refer to pg. 3). This Dynamic Navigation Update will perform the Embedded Navigation Update and provide telematic map services for a period of two years from the day that the Dynamic Navigation Update is performed. Activation card numbers are provided in an activation card number pamphlet available through the normal parts ordering system. Follow the process in this bulletin to perform the update. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.