2021 Toyota Sienna

Name: 2021 Toyota Sienna owner-filed safety complaints per 1,000 sold
Creator: YearsTell

Too few owners filed complaints about the 2021 Sienna in its first three years to say whether it is a better or a worse year than the others. 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.

0.08 per 1,000

too few complaints to rank against its other years

Counted from 9 complaints filed in the first three years, of 45 ever. 95% lower bound 0.03.

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 2021 Sienna report

No phrase appears often enough in these complaints to describe them reliably.

When it breaks

Too few complaints record mileage for this model year to show a pattern. NHTSA largely stopped capturing mileage after 2021.

What NHTSA did

1 investigation covering this model year, 1 of which list a recall campaign.

Pedestrian alert sounds

Questions buyers ask about the 2021 Toyota Sienna

Is 2021 a good year or a bad year for the Sienna?

What problems does the 2021 Sienna have?

The parts owners named most often in complaints filed to date: Air Bags (13), Service Brakes (9), Seats (5).

Is the 2021 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: too few owners filed complaints about the 2021 Sienna in its first three years to say whether it is a better or a worse year than the others.

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.