2009 Toyota Sienna Engine cooling Problems
- Complaints
- 4about this part
- Share
- 2%of 207 total for the year
- Median mileage
- 37,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2009 Toyota Sienna, 2% of the 207 complaints for this model year. Where a mileage was given, the median is 37,000 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.
“I have a 2009 Toyota Sienna with about 37800 miles on the engine. This is a certified pre-owned Toyota and I bought it with approximately 33000 miles on it in november of 2010. At about 37000 I noticed a ticking noise coming from the engine at idle. It starts after the engine warms up; mostly after driving about 15 minutes. I took it to a Toyota dealer for a diagnosis and the dealer stated they heard it and it's only normal engine sound. There is a TSB 0094-09 that addresses the issue. …”
NHTSA complaint #10405810, filed 2011-06, 37,000 miles“2009 Toyota Sienna minivan developed corroded rear air-conditioning lines after only 4 years. Corrosion caused complete loss of A/C coolant. It cost me $118 to have the A/C system tested only to find out that it will cost me another $1578 to repair the problem...and there's no guarantee that this won't happen again in another 4 years. Dealership won't help. Toyota corporate won't help. It is a scam that they use untreated aluminum A/C lines that they admit are prone to corrosion in northern climates where salt is used on the roads. Easy fix: paint the A/C lines! …”
NHTSA complaint #10531611, filed 2013-07, 98,509 miles“The contact owns a 2009 Toyota Sienna. The contact started the vehicle and there was an excessively loud rattling noise in the engine compartment. In addition, an odor of anti-freeze circulated inside of the vehicle. The failure only occurred when the vehicle was started. The vehicle was taken to an authorized dealer. The vehicle was not inspected or repaired for the malfunction. The failure mileage was 3,000.”
NHTSA complaint #10311203, filed 2010-02, 3,000 miles“2009 Toyota Sienna. Consumer writes in regards to engine overheating. The consumer stated he replaced the fan relay and thermostat. However, the vehicle continued to overheat. The dealer replaced the radiator and water pump, but the overheating continued. …”
NHTSA complaint #10690379, filed 2015-03Related service bulletins
- 10253223Mar 4, 2024This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the…
- 10183281Oct 21, 2020TT: HVAC drain tube is found to be blocked/clogged.
- 10178524Jul 30, 2020TT: HVAC drain tube is found to be blocked/clogged.
- 10177599Jun 3, 2020These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no…
- 10177598Jun 3, 2020These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no…
- 10109364Nov 21, 2014TSB: Some vehicles equipped with 2GR-FE/FXE engines and a towing package may exhibit a leak or oil seep from the engine's oil cooler pipes.
- 10109600Aug 7, 2014Dealer Letter: On certain vehicles equipped with a 2GR-FE (V6) engine, the rubber portion of the oil supply hose for the VVT-i actuator may degrade over time. This condition may…
- 10109594Aug 7, 2014Region Letter: On certain vehicles equipped with a 2GR-FE (V6) engine, the rubber portion of the oil supply hose for the VVT-i actuator may degrade over time. This condition may…
- 10132755Jul 31, 2014Dealer Letter: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Warranty Enhancement Program to extend the warranty coverage for…
- 10132750Jul 31, 2014Region Letter: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Warranty Enhancement Program to extend the warranty coverage for…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2013 | 1 | 1% |
| 2012 | 1 | 0% |
| 2011 | 6 | 1% |
| 2010 | 4 | 2% |
| 2009 | 4 | 2% |
| 2008 | 12 | 3% |
| 2007 | 14 | 4% |
| 2006 | 4 | 0% |
| 2005 | 17 | 2% |
| 2004 | 46 | 2% |
| 2003 | 6 | 6% |
| 2002 | 16 | 9% |
| 2001 | 24 | 13% |
| 2000 | 66 | 18% |
| 1999 | 39 | 18% |
| 1998 | 33 | 11% |
Other parts of the 2009 Toyota Sienna
97 complaintsOther or unknown
37 complaintsElectrical system
28 complaintsAir bags
14 complaintsVehicle speed control
13 complaintsSteering
12 complaintsTires
11 complaintsEngine
10 complaintsBrakes
8 complaintsTransmission and drivetrain
6 complaintsLatches, locks and linkages
5 complaintsWheels
5 complaints
← All problems reported for the 2009 Toyota Sienna
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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