2020 Hyundai Sonata: Reliability Data

Source: NHTSA — 236 complaints
236
Total Complaints
2,700mi
Median Mileage
FUEL/PROPULSION SYSTEM
Top Issue
8
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

675 25th Percentile
2,700 Median Mileage
30,729 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

FUEL/PROPULSION SYSTEM
41
ELECTRICAL SYSTEM
31
UNKNOWN OR OTHER
26
ENGINE
24
POWER TRAIN
21
SEATS
13
STRUCTURE:BODY
11
FORWARD COLLISION AVOIDANCE: WARNINGS
8
AIR BAGS
7
STEERING
7

Severity Assessment

8
Crashes
3
Fires
7
Injuries
0
Deaths

Sample Complaint Reports

"TL* THE CONTACT OWNS A 2020 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 55 MPH, THE VEHICLE SHIFTED INTO SAFE MODE AND LOST MOTIVE POWER. THE VEHICLE WAS TAKEN TO ST. CHARLES AUTOMOTIVE LOCATED AT 5601 VETERANS MEMORIAL PKWY, ST PETERS, MO 63376, (636)441-4481 BUT WAS NOT ..."
"I WAS DRIVING LONG-DISTANCE ON A HIGHWAY AT APPROX 55-60 MPH. THE WHOLE TRIP THROUGH THE ARIZONA DESERT WAS MARKED BY PERIODIC RAIN, AT TIMES VERY HEAVY. IN THE VERY HEAVY BURSTS OF RAIN, THE WINDSHIELD WIPERS DID A TERRIBLE JOB. I HAVE NEVER BEEN SHOCKED BY POORLY PERFORMING WINDSHIELD WIPERS. MY C..."
"TL* THE CONTACT OWNS A 2020 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE DOORS OPENED INDEPENDENTLY WITHOUT THE UNLOCK BUTTON BEING DEPRESSED. THE VEHICLE WAS TAKEN TO WALLACE HYUNDAI LOCATED AT (3801 SE FEDERAL HWY A, STUART, FL 34997) HOWEVER, THE MECHANIC WAS UNABL..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28