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Engine coolingPart report

2013 Toyota Sienna Engine cooling Problems

Complaints
1about this part
Share
1%of 183 total for the year
Median mileage
50miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2013 Toyota Sienna, 1% of the 183 complaints for this model year. Where a mileage was given, the median is 50 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“From the onset of purchase of a 2013 Toyota Sienna xle, the air conditioner has emitted a foul odor that smells like mold. Nor will the A/C system adequately cool the vehicle until being driven sometimes as long as ten miles, if then. We have been told to turn off the A/C before arriving home to eliminate the odor and given a Toyota print out that this is a known problem that is specific to the 2013 Toyota Sienna. On the last scheduled maintenance freon was added but did not eliminate the odor or improved the A/C output. …”

NHTSA complaint #10654246, filed 2014-11, 50 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201311%
201210%
201161%
201042%
200942%
2008123%
2007144%
200640%
2005172%
2004462%
200366%
2002169%
20012413%
20006618%
19993918%
19983311%

Other parts of the 2013 Toyota Sienna

Body and structure
44 complaints
Other or unknown
33 complaints
Air bags
22 complaints
Electrical system
22 complaints
Transmission and drivetrain
14 complaints
Brakes
12 complaints
Steering
11 complaints
Latches, locks and linkages
9 complaints
Visibility (wipers, defrost, mirrors)
9 complaints
Engine
7 complaints
Wheels
7 complaints
Fuel system
6 complaints

← All problems reported for the 2013 Toyota Sienna

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology