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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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Bulletins, newest first
Toyota Safety Re2019-01-07. Service bulletin. EQUIPMENT. Safety Recall and Service Campaign - Technician Certification Requirements
T-SB-0141-182019-01-07. Service bulletin. STRUCTURE:BODY:DOOR. 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.
Toyota Safety Re2018-12-17. Service bulletin. EQUIPMENT. Safety Recall and Service Campaign - Technician Certification Requirements
T-SB-0244-17_Rev2018-12-17. Service bulletin. LATCHES/LOCKS/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. Additionally, some 2011 ? 2015 model year Sienna vehicles may exhibit a condition where the power slide door does not close properly due to internal corrosion in the latch switch of the rear lock assembly. Follow the procedures in this bulletin to address these conditions.
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 Service Bulletin No. T-SB-0285-17 is obsolete and any printed versions should be discarded.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-0503-182018-12-03. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION. 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.
T-SB-0316-17 Rev2018-12-03. Service bulletin. ENGINE. 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 year) vehicles may exhibit a knocking noise from the vacuum pump. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0503-182018-11-26. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION. 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.
T-SB-0316-17 Rev2018-11-26. Service bulletin. ENGINE. 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 year) vehicles may exhibit a knocking noise from the vacuum pump. Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0313-172018-11-05. Service bulletin. SERVICE BRAKES. TSB: Some 2015 ? 2018 model year Toyota vehicles may exhibit brake vibration due to improper lug nut torque. Brake vibration can occur at any time if improper torque is applied to lug nuts. Even one lug nut over or under torqued can cause vibration.
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
T-TT-0503-18_Rev2018-10-15. Service bulletin. LANE DEPARTURE; VISIBILITY. 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.
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.
TS-WI-02902018-09-17. Service bulletin. SEATS. Service Bulletin sent to all dealers to inspect L-track bolts for correct torque and to incorporate torque check as part of regular maintenance
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.

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