Which parts fail
Components named in complaints (struts, shocks, control arms, ball joints, springs).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2004 Hyundai Sonata owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2004 Hyundai Sonata. The contact stated that while driving the vehicle, she noticed that her brakes were failing. The contact stated that she drove her vehicle to an independent mechanic who attempted to replace the brakes however, the mechanic informed her that her vehicle had a lot of corrosion on the brakes, and underneath the vehicle, which caused the brakes to fail. The contact stated that the mechanic did fabrication and installation of the brake line. The contact stated that she then took her vehicle to be inspected and was informed that the corrosion on the vehicle was too severe and the vehicle would not pass State Inspection. The vehicle was taken to the dealer and the contact was informed that the VIN was not included in NHTSA Campaign Number: 09V124000 (Suspension). The vehicle was not repaired. The manufacturer was not contacted. …
The contact owns a 2004 Hyundai Sonata. The contact stated that while performing a 4-wheel alignment, the independent mechanic informed her that he was unable to complete the alignment successfully because the sub frame was severely corroded. Additionally, the contact stated that while driving 35 MPH, she heard and abnormal sound coming from the sub frame and the vehicle started shuddering. The contact stated that she almost lost control of the vehicle. The contact was able to veer to the side of the road. The vehicle was towed to an unknown dealer who informed the contact that she needed to pay for the repair because the VIN was not included in NHTSA Campaign Number: 09V124000 (Suspension) or TSB Number: 12-01-029. The vehicle was not repaired. The manufacturer was notified of the failure and a case was opened. The failure mileage was 310,000.
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 NHTSA Campaign Number: 09V124000 (Suspension) however, the VIN was not included. The failure mileage was approximately 147,000.
The contact owns a 2004 Hyundai Sonata. The contact stated upon taking the vehicle to an independent mechanic, she was informed that the subframe was severely corroded. The independent mechanic informed the contact that the failure was associated with NHTSA Campaign Number: 09V124000 (Suspension) however, the VIN was not included. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 148,000.
NHTSA 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 #[redacted]). …
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. …
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.
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?
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.
Suspension failure July 2016-both engine mounts and lower control arms failed. Replaced 2016 July. April 2017 both engine mounts and lower control arms failed again. In addition violent jerking while driving,then loss of power. Usually occurred going up hills,coming off from making a turn or driving speeds under 25mph.brake lights remain on unable to indicate stopping to other cars.unable to safely drive and maneuver the vehicle. Brake lights remain on whether driving or in park. Jerking does not occur when putting vehicle in gear,but while driving speed decreases rapidly and car becomes difficult to steer. Suspension feels lose in addition there are noises as if bolts are broken. Per a recall search campaign 089 is open meaning under body isn't coated. Upon further reading of the campaign suspension failure can occur and other issues. …
Related recalls
Suspension
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…
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…
Suspension complaints in other Sonata years
Frequently asked questions
How common are suspension problems on the 2004 Hyundai Sonata?
NHTSA has 56 complaints about the suspension of the 2004 Hyundai Sonata, 28% of the model year's 202 complaints. The component named most often is front (1 mentions).
Is there a recall for 2004 Hyundai Sonata suspension problems?
Yes — NHTSA recall 09V-124 (suspension, Apr 16, 2009). Recall repairs are free at authorized dealers.
At what mileage do 2004 Hyundai Sonata suspension problems start?
Half of the complaints with a recorded mileage happened before about 105,000 miles, and 7% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 0 injuries to suspension problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.