FaultScore

Worst years for a Toyota Sienna Hybrid

Owners have filed 550 complaints about the Toyota Sienna Hybrid with NHTSA across model years 2021 to 2026. More of them are about the seats than anything else.

Avoid

2025 Toyota Sienna Hybrid

295 complaints — the highest FaultScore of any year, mostly seats.

Cleanest on record

2026 Toyota Sienna Hybrid

16 complaints — the lowest FaultScore of the graded years.

Every Toyota Sienna Hybrid year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2026 C 16 0 0 Windows, Mirrors & Wipers
2025 D 295 3 0 10,500 Seats
2024 D 88 6 0 18,913 Brakes
2023 C 77 13 0 44,242 Brakes
2022 C 24 2 0 37,000 Brakes
2021 C 50 0 1 15,750 Airbags

What breaks on a Toyota Sienna Hybrid

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Seats 228 41.5%

Worst in 2025

Worst in 2025

Brakes 54 9.8%

Worst in 2023

Worst in 2025

Worst in 2025

Driver Assist & Collision Avoidance 23 4.2%

Worst in 2024

Airbags 22 4.0%

Worst in 2021

Electrical System 16 2.9%

Worst in 2023

Engine & Cooling 10 1.8%

Worst in 2024

Transmission & Drivetrain 10 1.8%

Worst in 2023

Acceleration & Cruise Control 10 1.8%

Worst in 2024

Doors, Latches & Locks 9 1.6%

Worst in 2024

Seat Belts 8 1.5%

Worst in 2023

Tires 5 0.9%

Worst in 2024

Exactly what failed on a Toyota Sienna Hybrid

The named sub-assemblies behind those complaints, across every model year.

Body 21 33.9%
Exterior 10 16.1%
Warnings 6 9.7%
Sun/Moon Roof Assembly 5 8.1%
Hatchback/Liftgate 4 6.5%
Latch 4 6.5%
Automatic Emergency Braking 3 4.8%
Adaptive Cruise Control 3 4.8%
Blind Spot Detection 3 4.8%
Door 3 4.8%

Complaints filed over time

Every complaint about every Toyota Sienna Hybrid, by the month it reached NHTSA.

Dec 2020 peak 68 Aug 2026

Toyota Sienna Hybrid problems by state

Where owners filed from. Heavier states are usually just bigger markets, but a part that fails in heat or salt shows up here first.

Compare the Toyota Sienna Hybrid

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.