Service bulletins for the 2022 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.
132 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Software are shown. Show all
| TTT071622 | 2023-12-26. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TT: Vehicle option selection during identification process when connecting Techstream for diagnosis/repair. |
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| T-TT-0678-21 Rev | 2023-11-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TT: Some 19CY LG DCM equipped vehicles may not be able to complete the firmware update due to not having an active account or waived services during the trial. Follow the steps below to enable ?Temp DCM Activation?. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.