Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 223 complaints with NHTSA about the 2001 Hyundai Sonata, and it carries 3 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Structure | 47 | 21% |
| Air bags | 38 | 17% |
| Power train | 15 | 7% |
| Engine and engine cooling | 12 | 5% |
| Suspension | 10 | 4% |
| Suspension | 10 | 4% |
| Service brakes | 8 | 4% |
| Vehicle speed control | 7 | 3% |
| Visibility | 6 | 3% |
| Fuel system | 4 | 2% |
Verbatim from NHTSA complaint records, trimmed for length.
Upper rear control arm is connected to the subframe of the car and it’s rotted/ rusted out where the bushing goes to hold the control arm in place. Where am I supposed to mount the bushing now since it’s no longer there.
NHTSA complaint: Suspension
RECENTLY I HAD A SITUATION WHERE I WAS DRIVING ON COUNTY ROAD WAY AND MY CAR SUDDENLY COLLAPSED AND CAME TO AN IMMEDIATE STOP. TO SAY THE LEAST, I WAS A LITTLE SHOOK UP. I GOT OUT THE CAR AND NOTICED THAT THE DRIVER SIDE
NHTSA complaint: Suspension
I WAS DRIVING DOWN MY STREET WHEN THE DRIVERS CV AXLE POPPED OUT OF THE TRANSMISSION. I GOT THE VEHICLE TOWED HOME AND REMOVED THE WHEEL TO FIND THAT THE SUBFRAME WAS CORRODED COMPLETELY INTO. I KNOW THERE ARE RECALLS PE
NHTSA complaint: Steering
CONTROL ARM COMPLETELY SEPARATED/ BROKE FROM THE SUBFRAME. CALLED HYUNDAI AS MECHANIC SAID THIS SHOULD HAVE BEEN INCLUDED UNDER A RECALL THAT CAME OUT SEVERAL YEARS AGO FOR "BECAUSE OF A POTENTIAL CORROSION RISK INVOLVIN
NHTSA complaint: Suspension
AIRBAG RED LIGHT COMES ON WHEN STARTING THE ENGINE. RESTRAINING STRAP IN REAR-LEFT SEAT DOES NOT ENGAGE.
NHTSA complaint: Power train
TL* THE CONTACT OWNS A 2001 HYUNDAI SONATA. WHILE THE VEHICLE WAS PARKED AND UNOCCUPIED, THE DRIVER'S SIDE AIR BAG DEPLOYED WITHOUT WARNING OR IMPACT. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE LOCAL D
NHTSA complaint: Air bags
TL* THE CONTACT OWNS A 2001 HYUNDAI SONATA. WHILE MAKING A RIGHT TURN, THERE WAS AN ABNORMAL NOISE COMING FROM THE FRONT PASSENGER SIDE TIRE. IT WAS DISCOVERED THAT THE CONTROL ARM HAD FRACTURED FROM THE FRAME, WHICH WAS
NHTSA complaint: Suspension
PASSENGER SENSOR RIGHT FRONT,SENSOR FOUND IT FAULTY,THIS SENSOR IS UNDER THE FABRIC OF SEAT.LIGHT IS ALL WAYS ON.
NHTSA complaint: Air bags
NHTSA lists 3 recall campaigns for the 2001 Hyundai Sonata. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
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, O
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.
Fix: 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 INCORPO
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIR BAG WARNING LIGHT COULD ILLUMINATE DUE TO MOTION OF THE SIDE IMPACT AIR BAG WIRING HARNESS AND SIDE IMPACT AIR BAG WIRING HARNESS CONNECTOR THAT MOUNT TO THE ADJUSTABLE SEAT CUSHION ASSEMBLY. THIS CONDITION ONLY
Risk: THIS CONDITION COULD PREVENT SEAT MOUNTED SIDE IMPACT AIR BAG DEPLOYMENT DURING AN ACCIDENT WHERE SUCH DEPLOYMENT SHOULD OCCUR. NON-DEPLOYMENT OF THE SRS SIDE IMPACT AIR BAGS COULD INCREASE THE RISK
Fix: DEALERS WILL MORE SECURELY FASTEN THE FRONT SEAT SIDE IMPACT AIR BAG WIRING HARNESS AND CONNECTORS TO THE VEHICLE'S FRONT SEAT CUSHION FRAMES. OWNER NOTIFICATION WILL OCCUR IN SIX MAILINGS ON MAY 27,
ON CERTAIN PASSENGER VEHICLES, AN INTERMITTENT CONDITION THAT LEADS TO THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIR BAG WARNING LIGHT ILLUMINATION COULD RESULT FROM MOTION OF THE SIDE IMPACT AIR BAG WIRING HARNESS AND SIDE IMPACT AIR BAG WIRING HARNESS CONNECTOR WHICH MOUNT TO THE ADJUSTABLE SEAT CUS
Risk: NON-DEPLOYMENT OF THE SRS SIDE IMPACT AIR BAG COULD INCREASE THE RISK OF INJURY DURING A SIDE IMPACT CRASH.
Fix: DEALERS WILL MORE SECURELY FASTEN THE SIDE IMPACT AIR BAG WIRING HARNESSES AND CONNECTORS TO THE VEHICLE'S FRONT SEAT CUSHION FRAMES. OWNER NOTIFICATION BEGAN MAY 28, 2002. OWNERS WHO TAKE THEIR V
| Reliability raw | 77 | good |
|---|---|---|
| Longevity est. | 77 | good |
| Maintenance | 84 | excellent |
| Depreciation | 69 | good |
| Performance | 49 | below average |
| Efficiency | 40 | below average |
Percentile ranks against other midsize & large cars in the catalog.
What stands behind each score for this car:
Owners have filed 223 complaints with NHTSA for this model-year, and structure is the most reported area with 47 of them (21%). There are 3 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 77/100 (good) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 77/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2001 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 71/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.