2009 Hyundai Sonata Engine cooling Problems
- Complaints
- 6about this part
- Share
- 1%of 460 total for the year
- Median mileage
- 13,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine cooling of the 2009 Hyundai Sonata, 1% of the 460 complaints for this model year. Where a mileage was given, the median is 13,500 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.
“Purchased a 2009 Sonata in spetember of 2008, the air conditioner does not drain and has developed a mold smell when air is on. Returned to dealer, they want to clean evaporator with a foam cleaner at a cost of over $100.00. The tech said to drive car in the outside air circulator and not the recycle air engaged, since I refused the cleansing . This making me sick, friend has a 2009 santa fe with same issue.”
NHTSA complaint #10282953, filed 2009-09, 16,000 miles“1) was making a right turn into a parking lot. There was a slight incline. There was a quarter of a tank of gas in the car. 2) the engine appeared to turn off, however the electronics never turned off. Power steering was no longer available once the engine stopped running. 3) I attempted to restart the car, but it wouldn't start. You could hear the engine trying to start. I placed the car in neutral and pushed it into a parking space. About 5 minutes later I successfully restarted the car. …”
NHTSA complaint #10313623, filed 2010-02, 11,000 miles“New car was delivered to me with a major engine oil leak. Could have resulted in engine failure and loss of control of car. Car has been in dealers garage for 10 days with no repair yet made.”
NHTSA complaint #10244892, filed 2008-10, 197 miles“The contact owns a 2009 Hyundai Sonata. The contact stated that while driving 65 MPH, the vehicle stalled twice. The vehicle was merged to the shoulder with the engine off for approximately 35 minutes before it was able to be restarted. There were no warning lights illuminated. The vehicle was taken to the dealer who inspected and test drove the vehicle but could not locate the problem. The manufacturer was notified and a claim was filed. The manufacturer advised that a representative would be calling within 24 hours. The failure mileage was 18,941.”
NHTSA complaint #10439694, filed 2011-12, 18,941 miles“New car was delivered to me with a major engine oil leak. Could have resulted in engine failure and loss of control. Engine was replaced but has caused power train vibration and strong odor when the engine is warm.”
NHTSA complaint #10254321, filed 2009-01Related service bulletins
- 10247189Oct 13, 2023This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
- 10217251Jul 28, 2022Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or…
- 10190044Mar 30, 2021This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance…
- 10189989Mar 10, 2021This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
- 10041632Aug 1, 2011Hyundai: information is provided for the ecu update for hev active air flap (aaf).
- 10038212Dec 1, 2010Hyundai: a revised procedure for replacing the timing chain tensioners.
- 10034649Aug 1, 2010Hyundai: dtc p2135/p0638 or cold engine rpm fluctuation; tps replacement and ecm update. Some 2.7l, 3.3l or 3.8l engines in models identified in the applicability list may…
- 10034491Jun 1, 2010Hyundai: automatic transaxle ecm and tcm update. Provides a procedure to update the ecm and tcm software to the most recent versions to revise-acceleration feel from a stop or…
- 10032908Oct 1, 2009Hyundai: ata solenoid diagnostic trouble codes p0740, p0741, p0742, p0743, p0746, p0748, p0750, p0755, p0760, p0765, p0770. Incorrect operation of the transaxle solenoids may…
- 10032793Oct 1, 2009Hyundai: some vehicles may experience a malfunction indicator lamp illuminated with the etc (electronic throttle control) system related dtc p2135 ( forced limited power) or dtc…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 2 | 2% |
| 2021 | 1 | 1% |
| 2019 | 8 | 5% |
| 2018 | 14 | 4% |
| 2017 | 19 | 2% |
| 2016 | 17 | 2% |
| 2015 | 21 | 2% |
| 2014 | 21 | 3% |
| 2013 | 40 | 2% |
| 2012 | 11 | 1% |
| 2011 | 45 | 1% |
| 2009 | 6 | 1% |
| 2008 | 2 | 0% |
| 2007 | 8 | 1% |
| 2006 | 30 | 3% |
| 2005 | 5 | 3% |
| 2004 | 5 | 2% |
| 2003 | 14 | 7% |
| 2002 | 16 | 5% |
| 2001 | 23 | 11% |
| 2000 | 31 | 11% |
| 1999 | 23 | 19% |
| 1998 | 4 | 8% |
| 1997 | 7 | 14% |
| 1996 | 6 | 26% |
| 1995 | 9 | 14% |
| 1993 | 9 | 35% |
| 1992 | 4 | 18% |
| 1991 | 6 | 21% |
| 1989 | 5 | 45% |
Other parts of the 2009 Hyundai Sonata
98 complaintsElectrical system
61 complaintsEngine
56 complaintsElectronic stability control
51 complaintsOther or unknown
48 complaintsTransmission and drivetrain
41 complaintsBody and structure
40 complaintsVehicle speed control
31 complaintsAir bags
30 complaintsSteering
26 complaintsSuspension
25 complaintsFuel system
23 complaints
← All problems reported for the 2009 Hyundai Sonata
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