2004 Hyundai Sonata GLS front sub frame (K Frame) has rusted out but I guess for certain VIN numbers there was a recall. Mine has the same issue and has caused suspension issues with the control arms and axles, subframe has snapped due to rusting in Michigan.
The worst 2004 Hyundai Sonata problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Suspension56
- Body47
- Airbags46
- Electrical17
- Brakes16
- Steering13
- Wheels13
- Locks12
- Engine10
- Transmission10
- Fuel system8
- Acceleration5
- Lights5
- Seat belts4
- Visibility4
- Tires3
- Seats2
Specific symptoms reported on the 2004 Hyundai Sonata
Recalls 1
Suspension
- What is wrong
- Hyundai is recalling 188,282 my 2001-2004 sonata and my 2001-2004 xg300 and xg350 vehicles originally sold in or currently registered in the states of connecticut, delaware, illinois, indiana, iowa, maine, maryland, massachusetts, michigan, minnesota, missouri, new hampshire, new jersey, new york, ohio, pennsylvania, rhode island, vermont, west virginia, wisconsin, and the district of columbia. Road salt applied in these jurisdictions during the winter months may result in progressive, internal corrosion of the front sub-frame on the vehicles, and may result in thinning or perforation of the sub-frame steel. The corrosion is frequently visible and often discovered during inspection or routine maintenance, and owners may also hear noises or notice tire misalignment and steering pull. If these signals are undetected or unheeded, the corrosion may progress and the forward mounting of the lower control arm may detach from the sub-frame.
- Risk
- If that happens, the vehicle may lose drive power to the wheels, and the front wheel may make contact with the fender or wheel well, thereby increasing the risk of a crash.
- Remedy
- Dealers will measure the thickness of the front sub-frame and inspect the front sub-frame for corrosion damage and, if necessary, the front sub-frame will be replaced with a new sub-frame that incorporates additional holes in the upper and lower panels. If the front sub-frame does not require replacement, the dealer will add drainage holes to the sub-frame and will treat the sub-frame with rust-proofing material to stop the corrosion process. This procedure will be performed free of charge. The recall is expected to begin during april 2009. Owners may contact the hyundai customer assistance center at 1‑800‑633‑5151.
Recall number 09V124000 · Recall details
See all 1 recalls for the 2004 Hyundai Sonata
Defect investigations
Front sub-frame corrosion
In a letter dated april 14, 2009, hyundai-kia america technical center, inc (hyundai) notified the federal safety agency that hyundaiis conducting a safety recall of model year (my) 1999 through 2004 hyundai sonata vehicles manufactured prior to november 20, 2003 that are registered and operated in the following salt belt states and the district of columbia: connecticut, delaware, illinois, indiana, iowa, maine, maryland, massachusetts, michigan, minnesota, missouri, new hampshire, new jersey, new york, ohio, pennsylvania, rhode island, vermont, west virginia, and wisconsin.hyundai is recalling the vehicles to remedy a condition where internal corrosion of the front subframe may lead to separation of the lower control arm at the forward mounting point and/or separation of the axle from the transaxle.this could result in a loss of vehicle control and/or vehicle disablement. The subframes will be inspected in the recalled vehicles using a procedure developed by hyundai to measure metal thickness.parts with perforations from corrosion or with metal below the specified thickness will be replaced with redesigned subframes.if the minimum metal thickness is met, drainage holes and rust proofing material will be added to the existing subframe. Odi's analysis of complaint data revealed that 98% of the consumer complaints were from vehicles either originally sold or operated in saltbelt states. Similarly 99.7% of the warranty claims were from vehicles originally sold or operated in saltbelt states.odi identified 105 reports of lower control arm detachment and/or axle separation from the transaxle through analysis of warranty and complaint information and consumer interviews.one hundred three (103) of the 105 incidents involved vehicles in states covered by the recall.in addition to the subject vehicles, hyundai also noted in the april 14, 2009 letter that my 2001 through 2004 xg300 and xg350 were also being recalled as they were manufactured with subframes similar in design the subject vehicles.based on hyundai's decision to conduct a safety recall this engineering analysis is closed.
EA08016
Technical service bulletins for the 2004 Hyundai Sonata 54
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Higher-than-expected engine oil consumption
- Higher-than-expected engine oil consumption
- The federal safety agency has issued an urgent safety advisory regarding dangerous, counterfeit...
- The federal safety agency has identified the presence of substandard and dangerous driver’s-side airbag...
- This bulletin provides information regarding condensation related to the accumulated moisture in the...
- This bulletin contains information about the proper removal of the windshield wiper blade protective cover...
- This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
- Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships
- Follow the guidelines outlined in
- Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for...
2004 Hyundai Sonata fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.4L 4‑cyl | FWD | 19-20 | 28 | 22-23 |
| 2.7L 6‑cyl | FWD | 17-18 | 25 | 20 |
What 2004 Hyundai Sonata owners say
Most recent owner complaints, unedited.
On February, 16th 2026, I took my vehicle into the Automotive shop for an oil change. They inspected the car as well and they found that the front passenger side of the vehicle subframe has a substantial amount of the metal rusted through. The file attached was a photo of the repair invoice from Luke’s Auto in Upper Arlington, OH. I see that there is an open safety recall for this exact issue on the 2004 Hyundai Sonata. Although this recall was sent out in 2009, am I able to take this to a local Hyundai dealership to have this fixed?
I got this car a Hyundai sonata 2004 about 2 to 3 years ago. At first I didn't notice the problem until a couple months into me having the car I was on the freeway and it suddenly felt like I was out of control of my car and the back end was like swerving like I was pulling a trailer. And ever since then it's gotten worse now my front right tire goes flat randomly. A friend mechanic of mine looked at it and said that it is a suspension He just doesn't know what part of the suspension. This is dangerous because I could lose control of my car I have at any time. That could be detrimental and there is a recall in it seems like almost every other state but Utah. For the exact issue that I'm having and I don't think that's right. I've had issues with this car ever since I got it. If you guys could look into this that would be great Also this form asks the approximate date that something happened it happens all of the time. To the point where I'm afraid to drive it at all. I also it's gotten so bad that sometimes when I'm going only 35 mph and I hit like a pothole it will severely swerve and I will lose control of my car or if I turn my car I turn my car my steering wheel the right way and I lost control of my car it started swerving and I was on a mountain..
My 2004 sonata which was manufactured 05/07/04. has front frame corrosion exactly like the 089 safety recall that hyundia issued already for 1998-2003. My car was manufactured a few months later and they are denying the repair because it doesn’t fall in their production dates.
I currently own a 2004 Hyundai Sonata with a severe sub-fame deterioration, Unfortunately it does not fall under the so called salt belt states, That being said I don't know how Kansas does not fit that especially north east Kansas. Wondering if there's some way that they could reconsider on this matter and maybe get some help. I know the cars almost 20 yrs but it's in good shape with only 108000 miles on it. Thanks for any help with this matter. I was just informed by Hyundai that they would not do anything with it so I guess my only option is to drive it at my own risk and hope for the best. Regardless I'm very upset with there decision and that there okay with a persons life knowing this was a issues with many sonatas that probably didn't make the recall list.
The contact owns a 2004 Hyundai Sonata. The contact stated her fiance was driving 20-25 MPH on a steep hill with her in the front passenger's side seat. The contact stated that her fiance depressed the brake pedal to come to a complete stop at the stop sign, but the brake pedal went down to the floorboard, and the vehicle failed to respond. The contact's fiance veered to the left and intentionally hit a telephone pole to avoid crashing into a parked vehicle, and to prevent a more severe accident from occurring as the road was significantly steep. The brake warning light was illuminated. The air bags failed to deploy. The contact sustained a seatbelt mark. The contact's fiance was not wearing a seatbelt and hit his head against the windshield. The contact's fiance sustained a concussion, a laceration on the chin, a chipped front left upper tooth and bruises on the bottom teeth. The ambulance transported both the contact and her fiance to the hospital, where they received medical assistance. A police report was filed. The vehicle was towed to a tow yard. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was approximately 185,000.
UNKNOWN, I recently purchased it from a dealership in Lemon Grove Cailfornia. Ever since I bought it,it has never had a catalytic converter and only one muffler. It is a 2.7L motor DOHC and requires 2 catalytic converters and dual exhaust due to the double overhead cam. It has cause motor oil into my engine block and has coughed my heater core. Also blown head gasket. I have hired certified ASE mechanics to replace parts and then I run into another problem.
The contact owns a 2004 Hyundai Sonata. The contact stated while driving approximately 30 MPH, the accelerator pedal was depressed, and the vehicle started shuddering. The contact stated she heard abnormal creaking and cracking sounds. The contact stated no warning light was illuminated. The contact stated that the failure had become more frequent. The contact had taken the vehicle to an independent where it was diagnosed and determined that the front subframe, lower panels, and control arms needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The contact researched online and related the failure to the federal safety agency Campaign Number: 09V124000 (Suspension) however, the VIN was not included. The failure mileage was approximately 147,000.
the federal safety agency Campaign 09V124000 (Hyundai Recall #089) - excessive corrosion, thinning of the metal and perforation of the front sub-frame steel, due to road salt, resulting in separation of the forward mounting of the lower control arm increasing the risk of a crash. The recall was issued in 2009 for 1999-2004 Hyundai Sonatas. The present owner purchased the vehicle in 2014 with no knowledge of previous recall. The excessive corrosion and perforation of the sub-frame was brought to the owner's attention in December 2022 during a routine oil change by a Meineke shop and reported as unsafe to drive. The vehicle was towed to Route 1 Hyundai in Monmouth Junction, New Jersey, for inspection and repair estimate on December 30, 2022 and an online complaint filed with Hyundai Motor America for the recall (Case #[XXX]). Following numerous email communications to Hyundai Consumer Affairs, it was confirmed by a National Consumer Affairs representative that the vehicle was covered in Hyundai Recall #089. Route 1 Hyundai took photos of the front sub-frame and H-frame, completed a report and submitted it to Hyundai Motor America. Hyundai Motor America responded that they are declining assistance due to the failure being out of warranty caused by the time in service and mileage of the vehicle. The vehicle has 80,000 miles on the odometer. I am of the understanding that safety recalls are never out of date. Please verify if the response made by Hyundai Motor America is justified. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Air Bag autolight is on.
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Other model years
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Questions about the 2004 Hyundai Sonata
Is the 2004 Hyundai Sonata reliable?
Owners have filed 202 complaints about the 2004 Hyundai Sonata, fewer than a typical Sonata model year.
What is the 2004 Hyundai Sonata year score?
The 2004 Hyundai Sonata scores 79 out of 100 (average). The score compares it with the other model years of the Hyundai Sonata: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2004 Hyundai Sonata?
Suspension, with 56 complaints, typically around 105,000 miles. Next is body (47).
How many recalls does the 2004 Hyundai Sonata have?
1 recall, covering suspension.
Was there a recall on the 2004 Hyundai Sonata suspension?
Yes, 1 recall: 09V124000. Check your VIN to see if your car still needs the free repair.
What year does the Hyundai Sonata have bad suspension?
The Hyundai Sonata model years with the most suspension complaints are 2011 (149 complaints), 2006 (86 complaints) and 2000 (64 complaints).
What gas mileage does the 2004 Hyundai Sonata get?
Official estimates for the 2004 Hyundai Sonata range from 20 to 23 mpg combined. The most efficient version (2.4L 4-cyl, FWD) gets 19-20 city and 28 highway.
VIN decoder
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