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KLUNK
KLUNK

2003 Hyundai Sonata

The Verdict

55 Proceed with Caution

The 2003 Hyundai Sonata has 199 owner complaints filed with NHTSA. The most reported issues are body (85 complaints) and electrical (56 complaints). With a Klunk Score of 55/100, it earns a "Proceed with Caution" rating. If you're shopping for a Hyundai Sonata, consider the 2025 model year which has 91% fewer complaints.

Safe Bet

The 2025 has 91% fewer complaints

View the 2025 Hyundai Sonata dashboard →

55

Klunk Score: Proceed with Caution

About average for complaint volume. Research the specific issues before buying.

How is this calculated?

The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.

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Under the Hood

Each number is a complaint. Darker = bigger problem.

YearBodyBrakesElectricalEngineTransmission
200015911613515
200110518483219
200217625664611
2003851456359
20041081454179
2005621172164
2006370744929317
200724198291579
200814655161558
200918193748031
201022428353919
201113031137371090118
201243111830464251
201351010732989447
20141174417337030
2015247509767355
2016120358645518
2017260155940716
201881153622110
201930130902
2020512267413
2021364145015
202219494214
2023934607
20241721534
202563142

By Category

Body
85
Electrical
56
Engine
35
Brakes
14
Transmission
9

By Severity

1
83
2
83
3
14
4
19

Worst Problems

Compare Against

See how the 2003 Hyundai Sonata stacks up against rivals.

Complaints

Body 2

The contact owns a 2003 Hyundai Sonata. The contact stated that while the vehicle was at Valvoline for a service appointment, the contact was made aware of NHTSA Campaign Number: 09V124000 (Suspension). The vehicle was taken to the dealer, who informed the contact that the subframe assembly and additional unknown parts were not included in the recall repair. In addition, the contact was informed that the recall could not be performed because other repairs were needed prior to the recall repair. The vehicle was not repaired. The contact stated that the vehicle was unsafe to drive. The manufacturer was made aware of the failure, and a case was filed. The contact was informed that the repair was not covered under the recall. The failure mileage was approximately 170,000.

1mo ago
Body 1

The contact owns a 2003 Hyundai Sonata. The contact stated that upon taking the vehicle to an independent mechanic, the mechanic discovered severe corrosion on the suspension. Upon investigation, the contact discovered NHTSA Campaign Number: 09V124000 (Suspension). The vehicle was taken to a dealer, and the contact was informed that due to the severe corrosion, the recall repair could not be performed. The mechanic at the dealer described the vehicle as being unsafe to drive. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 58,000

10mo ago
Body 2

NHTSA Campaign ID Number: 09V124000 NHTSA Action Number: EA08016 Recall calls for repair or replacement of front sub-frame, due to corrosion. Local dealer responded, “ . . . we will not be able to perform recall”. I was told the corrosion was too far gone to repair. They refuse to replace the defective part.

12mo ago
Body 2

The contact owns a 2003 Hyundai Sonata. The contact stated that while the vehicle was being serviced by an independent mechanic, the mechanic informed the contact that the front subframe was severely corroded. The mechanic determined that the failure was related to a recall. The vehicle was taken to the dealer, where the contact was informed that the subframe needed to be replaced; however, the repair could not be covered under NHTSA Campaign Number: 09V124000 (Suspension) because the parts had been discontinued. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was unknown. Parts distribution disconnect.

25mo ago
Body 2

The contact owns a 2003 Hyundai Sonata. The contact stated that while self-inspecting the vehicle, he noticed that the subframe was extremely rusted. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 69,425. The contact stated that no assistance has been offered from the dealership from which the vehicle was purchased from.

36mo ago
Electrical 1

Airbag light came on and stays on. Pulled a code that pointed to the wiring in the passenger seat. Moved wiring around and made sure connectors were properly plugged and the light went away for maybe a week. Light is back on again. Removed seat bolts to gain better access, used tubing and electrical tape to straighten any kinked wiring I could find underneath passenger front seat, disconnected and reconnected connections. Airbag light blinked once and still remains on with the code still pointing to the passenger seat wiring. Apparently this issue has been reported many times in online forums with no meaningful response from the company though this clearly affects proper airbag deployment.

61mo ago
Engine 1

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH, WHEN THE VEHICLE LOSS MOTIVE POWER AND STALLED. THE CONTACT PUSHED THE VEHICLE TO THE SIDE OF THE ROADWAY. THE CONTACT HAD THE VEHICLE TOWED TO A CERTIFIED MECHANIC WHO DIAGNOSED THAT CRANKSHAFT POSITION SENSOR AND THE CRANKSHAFT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 45,922. THE VIN WAS NOT AVAILABLE.*DT*JB

65mo ago
Engine 2

YOU CAN NOT FILL GAS TANK PASS HALF WITH OUT THE SMELL FILLING THE CAR .THE BACK SUSPENSION WHEN YOU GO OVER 40 TALES FROM SIDE TO SIDE .THE CAR WAS ON THE HIGHWAY .

70mo ago
Body 1

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE THE VEHICLE WAS BEING INSPECTED BY AN INDEPENDENT MECHANIC, SHE WAS INFORMED THERE WAS CORROSION TO THE VEHICLE'S SUBFRAME. THE CONTACT WAS ALSO INFORMED THAT THE FRONT PASSENGER'S SIDE SWAY BAR LINKAGE AND BOTH FRONT WHEEL BEARINGS NEEDED TO BE REPLACED. A DEALER WAS NOT NOTIFIED OF FAILURE. THE VEHICLE HAD NOT BEEN DIAGNOSED NOR REPAIRED AS OF YET. UPON INVESTIGATION, THE CONTACT ASSOCIATED THE FAILURE WITH NHTSA CAMPAIGN NUMBER: 09V124000 (SUSPENSION) HOWEVER, THE VIN WAS NOT INCLUDED. THE MANUFACTURER WAS INFORMED OF THE FAILURE AND A COMPLAINT WAS FILED. THE FAILURE MILEAGE WAS 184,077.

75mo ago
Electrical 1

AIR BAG WARNING LIGHT IS ON. WHEN RESET THE LIGHT COMES ON AGAIN.

87mo ago
Electrical 1

AIRBAG LIGHT IS ON BUT THEY HAVE NOT DEPLOYED & NO APPARENT DAMAGE TO THE AIRBAG SYSTEM, WIRING, ETC. WILL NOT PASS INSPECTION WITH THE ABS LIGHT ON, AS YOU WELL KNOW.

87mo ago
Body 2

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. WHILE DRIVING 30 MPH, THE VEHICLE BEGAN TO VEER TO THE RIGHT WITHOUT WARNING AND THE POWER STEERING FAILED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FRONT SUBFRAME WAS CORRODED. THE DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THE VEHICLE WAS NOT INCLUDED IN A RECALL. THE FAILURE MILEAGE WAS 117,000.

96mo ago
Electrical 2

THE AIR BAG LIGHT IS CONSTANTLY ON, MEANING THAT IN THE EVENT OF AN ACCIDENT, THEY WILL NOT DEPLOY. INCREDIBLY DANGEROUS. THIS IS APPARENTLY DUE TO WIRING UNDERNEATH THE PASSENGER SEAT STRETCHING AND PINCHING FROM MOVING THE SEAT ITSELF AND WHEN THINGS ARE PLACED UNDERNEATH THE SEAT THAT MAY DISTURB THE WIRING. I KNOW IT IS THE WIRING UNDERNEATH THE PASSENGER SEAT DUE TO CHECKING THE TROUBLE CODE AND ALSO BEING ABLE TO TEMPORARILY FIX THE ISSUE FOR A COUPLE WEEKS BY GINGERLY MOVING THE WIRES UNTIL THE LIGHT WENT AWAY. NOW I CAN'T GET THE LIGHT TO GO AWAY NO MATTER WHAT METHODS I TRY. CAN'T FIND A REPLACEMENT SET OF WIRES NOR CAN I LOCATE WHICH WIRE SPECIFICALLY IS BEING AFFECTED TO TRY TO FIX THE ISSUE MYSELF. I HAVE SEEN DOZENS OF PEOPLE MAKING THIS SAME COMPLAINT ABOUT THE AIRBAG LIGHT STAYING ON. THIS NEEDS A RECALL SINCE THIS CAN EASILY LEAD TO DEATH SINCE THE AIRBAG WILL NOT DEPLOY TO ATTEMPT SAVING METHODS TO PASSENGERS. LIGHT WAS ON FOR THE PREVIOUS OWNER FOR I DON'T KNOW HOW LONG AND HAS BEEN ON FOR ME FOR ALMOST A YEAR NOW.

98mo ago
Engine 4

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 10 MPH, THERE WAS SMOKE EMITTING FROM THE FRONT OF THE VEHICLE. IN ADDITION, THERE WAS AN ABNORMAL ODOR OF FUEL INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE FAILURE COULD NOT BE DETERMINED. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 04V178000 (FUEL SYSTEM, GASOLINE). A LOCAL DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 180,000. *TT *TR

101mo ago
Engine 2

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. THE CONTACT STATED THAT THE VEHICLE FAILED TO START WHEN ATTEMPTED TO DRIVE. THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE FAILURE RECURRED ONCE. THE VEHICLE WAS TAKEN TO POTAMKIN HYUNDAI (6200 NW 167TH ST, MIAMI LAKES, FL 33014, PHONE: (305) 728-5030), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 139,000.

104mo ago
Brakes 4

THE BRAKE PEDAL DROPS DURING BRAKING WITH A CLUNK. THE BRAKES ARE WEAK AT THAT POINT BUT RECOVER. I REPLACED THE BRAKE PADS AND ROTORS AND MASTER CYLINDER, STILL THE SAME PROBLEM. IT HAPPENS A LOT. MY WIFE WON'T DRIVE THE CAR ANYMORE.

106mo ago
Body 2

6-22-17 MY DAUGHTER WAS RETURN TO WORK IN HER 2003 HYUNDAI SONATA, AS SHE WAS LEAVING AN ADJACENT PARKING LOT TO WHERE SHE PARKED, THE RIGHT FRONT WHEEL POPPED LOUDLY, THE CAR LOST POWER SHE STOPPED THE VEHICLE GOING STRAIGHT AT A RELATIVE LOW SPEED. THE CAR WAS INOPERABLE SO I HAD IT TOWED TO MY HOUSE. 6-24-17 I BEGIN TO INSPECT WHAT HAPPENED, I JACKED THE RT FRT END OFF THE GROUND AND BLOCKED IT UP. I FOUND THE LOWER CONTROL ARM WAS SOMEWHAT LOOSE. IT WAS BROKEN LOOSE FROM THE RT SIDE SUBFRAME. I CAME IN THE HOUSE AND RESEARCHED THE INTERNET AND FOUND THIS WAS A PROBLEM WITH SONATA'S FROM 1999-2004 CAMPAIGN NUMBER 09V12400, I CONTACTED HYUNDAI CUSTOMER SERVICE 6-24-17 AROUND 12:30PM. I GAVE THE CAR INFO TO THE LADY AND SHE SAID ONLY AN A-C RECALL WAS AVAILABLE FOR THE CAR. I ASKED ABOUT THE RECALL AND GAVE THE NUMBER, SHE SAID NOT FOR MY CAR AND THAT WAS ALL THEY COULD OFFER. WHEN THE CONTROL ARM BROKE LOOSE FROM SUBFRAME IT CAUSED THE AXLE TO PULL OUT OF THE DIFFERENTIAL AND THAT WAS WHY IT LOST POWER. I ALSO FOUND THAT THE SUBFRAME IS ALMOST RUSTED THROUGH AND WEAK.

110mo ago
Electrical 2

THE PROBLEM IS THAT THE AIR BAG IS ON AND DOESN'T GO AWAY. I HAD IT CHECK AND THERE IS NO CODE FOR IT SO THEY DON'T KNOW WHAT IS CAUSE THAT. I NEED A ANSWER BECAUSE I NEED TO HAVE INSPECT AND IS NOT GOING TO PASS.

113mo ago
Body 1

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH AND MAKING A RIGHT TURN, THERE WAS A LOUD NOISE COMING FROM THE VEHICLE. IN ADDITION, THE VEHICLE BEGAN TO SHAKE VIOLENTLY. UPON INSPECTION, IT WAS DISCOVERED THAT THE SUB FRAME HAD FRACTURED DUE TO RUST AND CORROSION. THE CAUSE OF THE FAILURE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 139,000.

117mo ago
Body 2

SUBFRAME RUSTING SO MUCH THAT THE DEALER TOLD ME THAT THE CAR IS UNSAFE TO DRIVE AND WON'T LET ME TAKE IT OUT.

118mo ago

199 total

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