The Toyota Sienna has had few serious problems across its history. The 2011 transmission software issue and the 2021 4th-gen hybrid launch are the only modern years with elevated complaint volume. Older 2004-2010 Siennas had power door, dashboard, and oxygen sensor issues.
Avoid: 2011 transmission and 2021 4th-gen launch
Buy Instead: 2017-2020 Sienna
Scores 1-10 based on NHTSA complaint volume, severity of reported issues, recall history, and class-action exposure. Higher is better.
| Year | Score | Summary | Top 3 Problems | Verdict |
|---|---|---|---|---|
| 2004 | 6/10 | 2nd-gen launch. Some power door issues. | · Power sliding door Dashboard cracking O2 sensor failures |
CAUTION |
| 2007 | 6.5/10 | Power door problems continue. | · Power door VSC light Oxygen sensor |
CAUTION |
| 2011 | 6.5/10 | 3rd-gen launch. Transmission software complaints. | · Trans shift quality Stuck power door Bluetooth connectivity |
CAUTION |
| 2014 | 8/10 | Mid-cycle refresh. Mature. | · Power sliding door Tire pressure sensor Radio |
BUY |
| 2017 | 9/10 | New 2GR-FKS V6, 8-speed. | · Power door Battery Headlight aim |
BUY |
| 2020 | 9/10 | Final 3rd-gen year. Most refined. | · Power door Battery Minor electronics |
BUY |
| 2021 | 7/10 | 4th-gen launch. Hybrid-only. | · Infotainment glitches Power door Brake recall 22V-094 |
CAUTION |
| 2022 | 8/10 | Year 2 of 4th gen. Improved. | · Minor recalls Infotainment Power door |
BUY |
First-year hybrid-only Sienna had multiple recalls: brake actuator (22V-094), passenger seat occupant detection, and infotainment glitches. Most are software fixable.
More on this issue →Power sliding door cables, motors, and tracks wear. The single most common Sienna repair across all generations.
More on this issue →Dashboard top develops large cracks in hot climates. Cosmetic only. Dash mat is the cheap fix.
More on this issue →Some 2011 Siennas had shift quality complaints addressed via Toyota TSB software update.
More on this issue →Bank 1 and bank 2 O2 sensors fail past 100,000 miles. P0420 catalyst code often follows. Aftermarket Denso sensors recommended.
More on this issue →2021 Sienna brake actuator software. Dealer reflashes.
More on this issue →Run a $5.99 AI diagnosis tailored to your exact vehicle. Get the most likely cause, repair estimate, and OBD2 code interpretation in under 30 seconds.
Diagnose My Sienna for $5.99Year-, make-, model-specific AI · Powered by NHTSA + AI
The Sienna has been remarkably trouble-free. The 2011 (transmission software) and 2021 (4th-gen hybrid launch) are the only modern years with elevated complaint volume.
It is the worst recent year due to launch issues. The 2022-2023 4th-gen models are much better with most software bugs resolved.
No, but expect cable and motor service over time. The doors are reliable for 80,000-100,000 miles on average.
Pre-2011 Siennas had dashboard cracking and oxygen sensor issues but were mechanically sound. Many run past 250,000 miles.
A maintained Sienna with the 2GR-FE V6 commonly passes 250,000-300,000 miles. The transmission is the primary lifespan factor.
Sienna by a small margin, especially for long-term ownership. The Honda Odyssey has had transmission and idle-stop issues that the Sienna does not.