2010 Toyota Sienna

Name: 2010 Toyota Sienna owner-filed safety complaints per 1,000 sold
Creator: YearsTell

For every car sold, owners filed more complaints about the 2010 Sienna than about the typical Sienna year: 1.5 times as many. Among the 12 Sienna years with enough complaints to compare, owners filed the fewest about the 2014 (0.25 per 1,000 sold) and the most about the 2011 (1.30).

Safety complaints filed by owners in the first three years, per 1,000 sold.

0.50 per 1,000

1.5 times this nameplate’s own median

Counted from 46 complaints filed in the first three years, of 171 ever. 95% lower bound 0.36.

Every Sienna model yearComplaints per 1,000 sold, first three years

This yearOther yearsToo few complaints to rankTypical year, 0.33

Against its own model years

The model year carries far more information than the badge, so this is the comparison that matters. The bar is how many complaints each rate rests on.

Model year	Per 1,000	Complaints
2008	0.74	86
2009	0.31	31
2010	0.50	46
2011	1.30	136
2012	0.34	39
2013	0.29	34
2014	0.25	31
2015	0.66	86
2016	0.32	42
2017	0.53	64
2018	0.33	33
2019	0.22	18
2020	0.27	16
2021	0.08	9
2022	0.03	3
2023	0.76	52

Issues owners of the 2010 Sienna report

Phrases over-represented in these complaints compared with the same component on every other vehicle. Counts are complaints containing the phrase.

Structure 57 complaints

sliding	30	53%
cable	26	46%
sliding door	22	39%
door cable	12	21%

When it breaks

23% of reported failures happened before 30,000 miles (median 68,000 miles, from 141 complaints that recorded one).

Failures arrive late and spread out, which looks like wear. Service history matters more than model year here.

What NHTSA did

No NHTSA investigation covers this model year.

That is not a clean bill of health, and not a criticism of the agency: investigations open for many reasons and complaint volume is only one of them.

Questions buyers ask about the 2010 Toyota Sienna

Is 2010 a good year or a bad year for the Sienna?

What problems does the 2010 Sienna have?

The parts owners named most often in complaints filed to date: Structure (57), Unknown Or Other (25), Electrical System (20). The phrases they used are listed above.

Is the 2010 Sienna reliable?

Complaint records cannot settle that on their own. They count safety problems owners chose to report to the federal government, not every repair. What they do show is how this year compares with the other Sienna years: for every car sold, owners filed more complaints about the 2010 Sienna than about the typical Sienna year: 1.5 times as many.

Which Sienna year has the fewest complaints?

Among years with enough complaints to compare, the 2014, at 0.25 per 1,000 sold. Every Sienna year, ranked.

What the used-car guides say

No guide we read covers the Sienna.

Check this yourself

Example records behind this page, each on NHTSA’s own site:

Limits of this figure. It counts safety complaints filed with the federal government, which is a floor on failures and not a census: problems that only cost money are under-reported. Complaint rates also reflect how likely a brand’s owners are to file, which cannot be separated from how often the car fails. Sales are calendar-year and the denominator for this nameplate is checked by hand against its source table, not against an outside figure.