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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: Equipment and accessories are shown. Show all

Bulletins, newest first
Toyota Safety Re2018-12-17. Service bulletin. EQUIPMENT. Safety Recall and Service Campaign - Technician Certification Requirements
T-SB-0133-182018-12-17. Service bulletin. EQUIPMENT:ELECTRICAL. 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 Service Bulletin No. T-SB-0285-17 is obsolete and any printed versions should be discarded.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 and Camry Hybrid vehicles equipped with Entune? 3.0 Audio Plus (version 1004 or earlier) or Entune? 3.0 Premium Audio (version 1000 or earlier) may exhibit one or more of the following conditions: ? Abnormal display operation in the destination screen after ?IG-ON? ? Abnormal turn-by-turn direction operation ? Inaccurate traffic information displays ? Abnormal navigation routing ? Abnormal destination and ETA operation while navigation is operating ? Abnormal rerouting operation ? Abnormal navigation operation after ?IG-OFF/ON? cycle ? Navigation will not avoid areas that have been set to avoid ? Intermittent rebooting ? Navigation will not set from Destination Assist Navigation will intermittently not boot up after ?IG-ON? ? Abnormal operation when selecting unplayable songs from the USB flash drive ? Abnormal screen appearance ? Abnormal music browsing when manually browsing music ? Apps take a long time to load ? Abnormal shuffle function when listening to iPhone ? Voice output for temperature is incorrect unit ? Rebooting when connecting an Apple® device with more than 501 podcasts ? Abnormal brightness of Entune? apps ? Voice recognition inoperative ? Delay after answering a phone call ? Incoming call continues to ring (unable to answer or decline)
T-SB-0074-18_Rev2018-12-17. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. 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 missing letters in French ? Unable to load all contacts on Android 8.0 ? Incorrect update history showing ? Slow XM response Intermittent blank screen ? GPS does not conform to the road ? Unable to turn off contact images A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to update the software.
T-SB-0337-17-Obs2018-12-17. Service bulletin. EQUIPMENT. TSB: OBSOLETE NOTICE March 21, 2018: This bulletin is now obsolete. Please see T-SB-0279-17.
T-TT-0484-18 Rev2018-12-17. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. 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-0414-16-Rev2018-12-03. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. 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 phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone or if they have restored their phone data/settings recently.
T-TT-0472-172018-11-05. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. 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-TT-0470-172018-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL; EQUIPMENT. TT: All grades of 2018MY Sienna 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.
Safety Recall an2018-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Update on Technician Certification Requirements.
PG006-01-Obsolet2018-10-15. Service bulletin. EQUIPMENT:OTHER:LABELS; EQUIPMENT. Technical Service Bulletin: OBSOLETE NOTICE: July 31, 2018: This bulletin is now obsolete. Please see T-SB-0304-17.
PG004-97-Obsolet2018-10-15. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:LABELS. Technical Service Bulletin: OBSOLETE NOTICE: July 31, 2018: This bulletin is now obsolete. Please see T-SB-0304-17.
Toyota Safety Re2018-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Safety Recall and Service Campaign - Technician Certification Requirements
Technician Certi2018-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Safety Recall and Service Campaign - Technician Certification Requirements
T-SB-0074-182018-10-15. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). 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 ? GPS does not conform to the road ? Unable to turn off contact images. A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to update the software.
T-SB-0304-17_Rev2018-08-20. Service bulletin. EQUIPMENT. 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, and T-SB-0144-08. Service Bulletin Nos. PG021-88, PG015-89, PG0015-90, PG002-91, PG002-93, PG005-97, PG007-01, PG007-07, PG006-01, PG004-97, and T-SB-0144-08 are obsolete and any printed versions should be discarded. Vehicle replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) may be available from Toyota, provided the request meets one of the criteria listed in this Service Bulletin. Replacement Certification Label and VIN Plate Criteria A replacement certification label and/or VIN plate may be requested if: ? The vehicle was in an accident and the label and/or plate is damaged or attached to a part that will be replaced during the repair. ? The label and/or plate was stolen.
T-SB-0235-17_Obs2018-08-20. Service bulletin. EQUIPMENT. TSB: OBSOLETE NOTICE July 20, 2018: This bulletin is now obsolete. Please see T-SB-0068-18.
T-SB-0057-182018-08-20. Service bulletin. EQUIPMENT. 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 the system is reset, all previously registered keys will be erased. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system. NOTE New security provisions are required to obtain a reset passcode. It is critical to review the instructions for this new process BEFORE attempting to get a passcode in the new system.
T-TT-0442-172018-07-02. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active. The first year of service is provided in the vehicle purchase price. 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.
T-TT-0441-172018-07-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TT: During previous air conditioning service, leakage prevention agent (A/C stop leak) may have been added to the A/C system. Adding stop leak products to the A/C system is not a recommended or approved Toyota repair process. During A/C service, moisture enters the A/C system, and can react with the previously added A/C stop leak, forming a gelatinous substance. The gel substance that forms can cause the A/C compressor to bind and or seize.
Toyota Safety Re2018-06-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Safety Recall and Service Campaign - Technician Certification Requirements.
T-TT-0442-17_Rev2018-06-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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. If registration of the replacement DCM part is attempted using the Techstream utility after the account has become inactive, the registration will fail, and messages such as "ATX webserver is Down" or "ATX error" will be displayed.
T-TT-0463-172018-04-23. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING. T-TT: Some vehicles may exhibit an abnormal HVAC blower motor noise.
T-SB-0233-17_Rev2018-04-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB: REVISION NOTICE August 14, 2017 Rev1: Applicability has been updated to exclude 2018 model year Avalon vehicles. The Repair Procedure section has been updated. Any previous printed versions of this bulletin should be discarded. NOTE This Service Bulletin ONLY applies to models equipped with Service Connect and Entune 3.0 Audio Plus or Entune 3.0 Premium Audio. When a maintenance alert occurs, a message displays on the head unit with the ?Call Dealer? button. It is important to program the dealer contact information into the head unit to ensure that the customer can schedule service.
T-SB-0235-17_Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL. TSB: REVISION NOTICE July 20, 2017 Rev1: Applicability has been updated to exclude 2018 model year Avalon vehicles. An initialization procedure is required to activate the Entune? App Suite Connect for Entune? 3.0 Audio, Entune? 3.0 Audio Plus and Entune? 3.0 Premium Audio head units before they are used for the first time on new vehicles.
T-SB-0196-172018-04-02. Service bulletin. EQUIPMENT. TSB: Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery. The following guidelines should be performed to minimize vehicle component/part degradation due to extended vehicle storage conditions. Long-term storage can affect a vehicle's system and components. Any problems that are found should be corrected immediately.

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