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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: Brakes are shown. Show all

Bulletins, newest first
23TE042023-05-01. Service bulletin. SERVICE BRAKES, HYDRAULIC; AIR BAGS. DL: On December 20, 2022, a settlement of claims for certain low pressure fuel pumps was approved by the federal court. The settlement includes Toyota?s agreement to provide a Customer Support Program for certain 2014-2020 model year (MY) vehicles originally equipped with low pressure fuel pumps repaired under Safety Recall 20TA02, Safety Recall 21TA03, Safety Recall 21TA05 or Special Service Campaign 21TC03. The purpose of this Customer Support Program letter is to help clarify how to administer this coverage in accordance with the settlement.
TSB0009232023-05-01. Service bulletin. EQUIPMENT; SERVICE BRAKES, HYDRAULIC. TSB: Some 2014 ? 2020 model year Toyota vehicles may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ?DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank 2) ?DTC P0087 Fuel Rail / System Pressure ? Too Low Techstream data list analysis may reveal positive fuel trims including a no pressure condition verified by a manual fuel pressure gauge. Follow the Repair Procedure in this bulletin to address these conditions.
TTT0636202022-06-21. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES, HYDRAULIC. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions
T-TT-0636-20 Rev2021-04-19. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-SB-0004-212021-02-16. Service bulletin. VEHICLE SPEED CONTROL; PARKING BRAKE. TSB: Some 2010 ? 2020 model year Sienna vehicles may exhibit a condition where the front door glass run on either the right-hand or left-hand side comes loose from the door channel during window operation. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0636-202021-02-16. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-TT-0636-202021-02-01. Service bulletin. SERVICE BRAKES, HYDRAULIC. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-SB-0033-18 Rev2020-12-21. Service bulletin. SERVICE BRAKES. TSB: Some 2011 ? 2020 model year Sienna vehicles may exhibit a vibration/pulsation from the front brakes that can be felt in the brake pedal while lightly applying the brake pedal. Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0039-19_Rev2020-03-30. 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-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-SB-0033-182018-06-18. Service bulletin. SERVICE BRAKES. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0045-14. * Applicability has been updated to include 2018 model year Sienna vehicles. * The entire bulletin has been updated. Service Bulletin No. T-SB-0045-14 is obsolete and any printed versions should be discarded. Some 2011 - 2018 model year Sienna vehicles may exhibit a vibration/pulsation from the front brakes that can be felt in the brake pedal while lightly applying the brake pedal. Follow the Repair Procedure in this bulletin to address this condition.

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