Toyota Sienna problems by year

8,525 owner complaints filed with NHTSA across 24 Toyota Sienna model years. Last verified Aug 7, 2026. Complaint totals are lifetime counts — years that have been on the road longer accumulate more reports.

Years with the most complaints

2004 (2,062), 2005 (1,130), 2006 (1,016), 2011 (611)

Years with notably fewer complaints

1996 (3), 2018 (69), 2019 (45), 2020 (36)

Year	Complaints	Recalls	Most reported problem
2020 Fewer complaints	36	2	Power Train
2019 Fewer complaints	45	7	Unknown OR Other
2018 Fewer complaints	69	7	Power Train
2017	152	10	Power Train
2016	75	5	Structure
2015	229	6	Structure
2014	162	6	Structure
2013	182	6	Structure
2012	247	9	Air Bags
2011 Most complained	611	14	Air Bags
2010	172	8	Structure
2009	207	10	Structure
2008	428	9	Structure
2007	364	10	Structure
2006 Most complained	1,016	11	Air Bags
2005 Most complained	1,130	12	Structure
2004 Most complained	2,062	10	Structure
2003	105	1	Latches/locks/linkages
2002	181	1	Structure
2001	180	2	Structure
2000	363	1	Power Train
1999	215	1	Engine and Engine Cooling
1998	294	1	Latches/locks/linkages
1996 Fewer complaints	3	0	—

How to read this. Complaints are unverified reports owners file with NHTSA’s Office of Defects Investigation, counted once per case number. Raw totals are not adjusted for sales volume, and recent model years have had less time on the road. “Most complained” flags years well above the model’s median; treat it as a signal for deeper research, not a verdict. This page is not affiliated with Toyota.