1991 Hyundai Sonata: Reliability Data

Source: NHTSA — 41 complaints
41
Total Complaints
SEAT BELTS
Top Issue
3
Crash Reports

What Fails?

Most reported component issues from NHTSA complaints.

SEAT BELTS
7
POWER TRAIN:AUTOMATIC TRANSMISSION
5
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR
3
UNKNOWN OR OTHER
2
ENGINE AND ENGINE COOLING:ENGINE
2
SEAT BELTS:FRONT:RETRACTOR
2
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
2
ELECTRICAL SYSTEM:IGNITION:SWITCH
2
ELECTRICAL SYSTEM:STARTER ASSEMBLY
2
POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES
1

Severity Assessment

3
Crashes
6
Fires
5
Injuries
0
Deaths

Sample Complaint Reports

"THE DEALERSHIP REFUSES TO FIX A PROBLEM ON THE CAR THAT WAS RECALLED. PLEASE DESCRIBE RECALL FURTHER. TT"
"DEALERSHIP REFUSED TO PERFORM RECALL REPAIRS DUE TO DATE OF VEHICLE, LATER RETRACTED STATEMENT, STILL NOT FIXED. TT"
"TRANSMISSION COOLANT LINE DEVELOPED A LEAK AND SPRAYED FLUID ONTO THE EXHAUST SYSTEM, CAUSING A FIRE. TT"

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