Service bulletins for the 2023 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.
140 on file from NHTSA, as of 2026-10-19.
About C1AC2 on the 2023 Toyota Sienna: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: C1AC2 are shown. Show all
| T-SB-0048-24 | 2024-07-23. Service bulletin. ELECTRICAL SYSTEM. Some 2021 – 2024 model year Sienna Hybrid vehicles equipped with a Blind Spot Monitor may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) C1AC200 (Rear Side Radar Sensor Beam Axis Misalignment) present and Blind Spot Monitor inoperative system warnings displayed. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.