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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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Only bulletins with component: Software are shown. Show all

Bulletins, newest first
T-TT-0600-20 Rev2020-12-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. 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-0566-19 Rev2020-09-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. 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.
T-SB-0047-19 Rev2020-09-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING 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 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. 10) 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. 4). 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.
T-SB-0046-20 Rev2020-09-14. 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.
T-TT-0566-19 Rev2020-09-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. 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.
T-SB-0047-19 Rev2020-09-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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 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. 10) 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. 4). 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.
T-SB-0046-20 Rev2020-09-14. 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.
T-SB-0041-19 Obs2020-06-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: OBSOLETE NOTICE May 11, 2020: This bulletin is now obsolete. Please see T-SB-0046-20.
T-SB-0046-202020-06-15. 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-0044-202020-06-15. 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-SB-0041-19_Rev2020-04-20. 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_Rev2020-04-20. 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-TT-0566-192019-09-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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.
T-SB-0055-19_Rev2019-09-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. 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 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. NOTE Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ.
T-SB-0047-192019-05-13. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE. 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 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. 2). 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. NOTE Map data is released once each year through the shipment of an SST USB flash drive to each dealer. The SST MUST be stored in the SST cabinet to ensure it can be easily found
K0A_Sienna Camry2019-05-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; 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
T-TT-0498-182018-06-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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.
T-TT-0472-172018-06-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TT: Some customers may experience an inoperative Entune? Apps Suite after connecting an Apple device with iOS version 11.2 or later via USB tethering.
T-SB-0001-18_Rev2018-03-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). TSB: REVISION NOTICE February 02, 2018 Rev1: ? Applicability has been updated to include 2018 model year Sienna vehicles. ? The entire bulletin has been updated. Any previous printed versions of this bulletin should be discarded. When completing a transaxle assembly replacement, Engine Control Module (ECM) (SAE term: Powertrain Control Module [PCM]) replacement, or ECM (PCM) reprogram, ensure the correct ECM (PCM) software is matched with the transaxle assembly hardware. Some 2017 ? 2018 model year Highlander and Sienna vehicles require different ECM (PCM) software based on the transaxle assembly hardware installed in the vehicle. NOTICE Mismatched transaxle assembly hardware and ECM (PCM) software combinations may result in a harsh shift or shift flare. If this occurs after the original repair, additional ECM (PCM) replacement and reprogramming will be required. This additional ECM (PCM) replacement and/or reprogramming is NOT covered under warranty. Use the information in this Service Bulletin to confirm that the correct ECM (PCM) hardware and software are used based on the transaxle assembly part number and serial number.
T-SB-0337-172018-01-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: Some customers may complain of the inability to use certain functions of the navigation/infotainment system while the vehicle is in motion. The following software update modifies the system functionality while the vehicle is in motion, improving customer experience. New software is available to address the following: ? Phone keypad unlocked while vehicle is in motion ? Contact list unlocked while vehicle is in motion ? Bluetooth connected phone switching while vehicle is in motion ? Navigation transition improvements (if equipped) ? Revised BT-Audio help pop-up ? Call history list call function improvements ? Reboot after coming out of Reverse ? Errors during phonebook transfer ? Sound settings reset after ignition key cycle ? Surround turns back on after key cycle ?Abnormal operation when listening to FM HD Radio

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.