2025 Sienna Refresh. For 2025, the sienna continues to add improvements with a mild refresh, bringing better tech and family features for this year. While it would be great for toyota to drop in the new 3.5l twin turbo v6 hybrid into the sienna at the next refresh happening in 2025.
The 2025 toyota sienna is supposed to come out later this year and there is much speculation about some of the features we will see in the machine. The ’15 sienna was introduced in july, officially announced in september ’14 so i would bet that the 2025 refresh will be introduced in summer 2024.