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: Steering are shown. Show all
| T-TT-0578-19 Rev | 2020-11-23. Service bulletin. STEERING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; 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. |
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| 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-TT-0578-19 | 2019-12-02. Service bulletin. STEERING. 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.