1999 Hyundai Sonata Gls: Reliability Data

Source: NHTSA — 67 complaints
67
Total Complaints
112,000mi
Median Mileage
STRUCTURE:FRAME AND MEMBERS
Top Issue
1
Crash Reports

When Do Complaints Happen?

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

89,500 25th Percentile
112,000 Median Mileage
134,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STRUCTURE:FRAME AND MEMBERS
28
SUSPENSION:FRONT
6
SUSPENSION
6
STRUCTURE
5
AIR BAGS
4
ENGINE AND ENGINE COOLING:ENGINE
2
POWER TRAIN:DRIVELINE
2
STRUCTURE:BODY
2
STEERING
2
AIR BAGS:SIDE/WINDOW
2

Severity Assessment

1
Crashes
0
Fires
4
Injuries
14
Deaths

Sample Complaint Reports

"PURCHASED CAR AUGUST 16TH 2001 SHORTLY AFTER PURCHASE ABOUT 3 MONTHS LATER THE CHECK ENGINE LIGHT CAME ON SO I TOOK IT BACK TO THE PLACE OF WHICH I PURCHASED IT WYATT JOHNSON HYUNDAI DEALERSHIP IN CLARKSVILLE TN . AT THAT TIME THE O2 SENSOR HAD WENT BAD SO THAT WAS REPLACED AND WE WERE ALSO ADVISED ..."
"PURCHASED CAR AUGUST 16TH 2001 SHORTLY AFTER PURCHASE ABOUT 3 MONTHS LATER THE CHECK ENGINE LIGHT CAME ON SO I TOOK IT BACK TO THE PLACE OF WHICH I PURCHASED IT WYATT JOHNSON HYUNDAI DEALERSHIP IN CLARKSVILLE TN . AT THAT TIME THE O2 SENSOR HAD WENT BAD SO THAT WAS REPLACED AND WE WERE ALSO ADVISED ..."
"MANY PREVIOUS PROBLEMS WITH THE AIRBAG IN MY 1999 HYUNDAI, SONATA. MY AIRBAG DID NOT DEPLOY IN A TRAFFIC ACCIDENT. THE CAR WAS TOTAL JUNE 1, 2003. *NLM"

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