Problems · by component
2005 Hyundai Sonata structure problems
30 owner complaints to NHTSA about the 2005 Hyundai Sonata cite structure, 18% of all 165 complaints for this model year.
Complaints
30
18% of all complaints
Crashes
4
Reported by owners
Fires
0
Reported by owners
Injuries
11
Reported by owners
What owners say about the structure
Verbatim from NHTSA complaints, newest first
“I took my car to the mechanic for a “once over” before driving from New Jersey to North Carolina. This car has only 41,000 original miles on it as we bought it new in 2005. Upon inspection, the mechanic came back with certain repairs that are needed due to age; but he was extremely concerned about a severe safety issue that the subframe had rotted out and needed to be replaced. This is a known corrosion issue with other years of manufacture for this model. There was a class action suit for this specific issue for 1999 to 2004 Sonatas. The subframe threatens to collapse from rust at any time and is an extreme hazard to the driver, passengers, and others on the road. There was absolutely no warning of this issue prior to this inspection, making it even more dangerous as it affects many drivers who are unaware of the issue.”
“Severely rusted out and corroded front subframe, only noticed it on accident very recently, and my car is the last year of a generation that was recalled for this very issue within the Salt Belt- I live right at the bottom outskirts of the Salt Belt in NKY, and my car is the only year not recalled for subframe corrosion. It's bad and I'm freaked out and can't afford it unless I figure out how to do it myself without prematurely dying due to a dropped engine or something similar (premature because if I don't get it fixed soon I reckon that fate isn't too far off)”
“Upon inspecting the undercarriage of my vehicle found the right side of Front Subframe Cradle Suspension rotted almost completely through. When researching for issues pertaining to this model found a TSA was issued , after a lawsuit in California, for the years prior and after my vehicle. The damage is concurrent with the TSA bulletin but excluded. How does a manufacturer whom obviously is aware of an ongoing issue allow so many people, families and children, drive and risk their lives on our public roadways. Is their a subclass recall that will aid those like myself take corrective action.”
“TL* THE CONTACT OWNS A 2005 HYUNDAI SONATA. WHILE THE VEHICLE WAS BEING SERVICED BY AN INDEPENDENT MECHANIC, THE CONTACT WAS NOTIFIED THAT THE SUBFRAME WAS COMPLETELY RUSTED. THE CONTACT ASSOCIATED THE FAILURE WITH NHTSA CAMPAIGN NUMBER: 09V124000 (SUSPENSION). THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 147,000. *LN*JB”
“WHILE CHANGING MY OIL ON THE WEEKEND, I NOTICED SEVERE CORROSION FAILURES WITH THE FRONT SUBFRAME ON THE RIGHT SIDE OF MY CAR. (SEE ATTACHED PHOTOS). ONE AREA WAS IN FRONT OF THE LOWER CONTROL ARM AND ANOTHER AREA IS BEHIND THE CONTROL ARM. IT LOOKS LIKE THE SUBFRAME WILL FAIL AT ANY MOMENT AND THE CONTROL ARM WOULD BE FREE TO MOVE ANYWHERE. THIS WOULD SIGNIFICANTLY AFFECT CONTROL OF THE VEHICLE AND BE A SERIOUS SAFETY CONCERN. I SEE THIS PART HAS ALREADY HAD A RECALL FOR 2001 TO 2004 HYUNDAI SONATAS WHICH IS THE SAME BODY AND FRAME STYLE AS THE 2005 VEHICLE. RECALL #09V124000.”
“TL* THE CONTACT OWNS A 2005 HYUNDAI SONATA. WHILE THE CONTACT WAS REPLACING THE BRAKES ON HIS VEHICLE AT HIS HOME, HE NOTICED THE SUBFRAME WAS COMPLETELY CORRODED. THE VEHICLE WAS TAKEN TO ELYRIA HYUNDAI (845 LEONA ST, ELYRIA, OH 44035, (440) 374-8700) WHERE IT WAS DETERMINED THAT THE SUBFRAME WAS RUSTED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND PROVIDED CASE NUMBER: 15927053. THE FAILURE MILEAGE WAS 49,429.”
Showing 6 of 30 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.