"How reliable is the 2003 Hyundai Sonata?"

"Based on 247 NHTSA complaints, the 2003 Hyundai Sonata has a median complaint mileage of 70178 miles. The most common issue is AIR BAGS."

"What are common problems with the 2003 Hyundai Sonata?"

"The most frequently reported component in NHTSA complaints for the 2003 Hyundai Sonata is AIR BAGS, accounting for a significant portion of the 247 total complaints filed."

2003 Hyundai Sonata: Reliability Data

Source: NHTSA — 247 complaints

247

Total Complaints

70,178mi

Median Mileage

AIR BAGS

Top Issue

Crash Reports

When Do Complaints Happen?

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

38,000 25th Percentile

70,178 Median Mileage

119,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS

ELECTRICAL SYSTEM

SUSPENSION

STRUCTURE:BODY:DOOR

STRUCTURE

STRUCTURE:BODY

FUEL SYSTEM, GASOLINE

FUEL/PROPULSION SYSTEM

LATCHES/LOCKS/LINKAGES

AIR BAGS:FRONTAL

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"RECENTLY TOOK DELIVERY ON A 2003 HYUNDIA SONOTA. WONDER WHEN HYUNDIA IS GOING TO GET WITH THE SAFETY FEATURE OF DRIVING LIGHTS? AM NOW DRIVING AROUND WITH PARKING LIGHTS ON ALL THE TIME."

"CONSUMER CALLED COMPLAINING ABOUT HAVING PROBLEMS WITH IDLE SPEED AND VEHICLE WILL STALL. ALSO STATED THAT WHILE DRIVING THE VEHICLE THE VEHICLE WILL START LOOSING POWER ON HIGHWAY SPEED. DEALER WAS CONTACTED AND STATED THAT THIS IS A INTERMEDIATE PROBLEM AND UNLESS HYUNDAI SENDS OUT A LETTER OR SO..."

"TRANSMISSION MADE LOUD CLUNKING NOISES, BROUGHT INTO DEALER, "COULDN'T DUPLICATE" (TYPICAL RESPONSE), THEN I FOUND THE TRANSMISSION TO BE LEAKING, TRANSMISSION WAS REPLACED AT 1500 MILES, STILL HAD BAD SHIFT PATTERNS AND HANG UPS IN GEARS, MORE SO AFTER THE TRANSMISSION WAS REPLACED. ALSO HAD ALL S..."

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

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

AIR BAGS 34 complaints

25th: 53,000 mi Median: 65,505 mi 75th: 103,500 mi

ELECTRICAL SYSTEM 17 complaints

25th: 32,625 mi Median: 45,000 mi 75th: 116,966 mi

SUSPENSION 13 complaints

25th: 130,000 mi Median: 150,000 mi 75th: 160,500 mi

STRUCTURE:BODY:DOOR 13 complaints

25th: 65,355 mi Median: 100,000 mi 75th: 109,342 mi

STRUCTURE 9 complaints

25th: 51,015 mi Median: 78,912 mi 75th: 126,500 mi

Where Are Complaints Coming From?

Top states by complaint count.

PA: 28 FL: 19 NY: 18 CA: 16 MD: 15 IL: 13 VA: 13 MO: 12 KY: 12 OH: 11

Who Files Complaints?

20.2%

Original Owners

79.8%

Second+ Owners

Hyundai Sonata — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1990	25	-	POWER TRAIN:AUTOMATIC TRANSMISSION	0
1991	41	-	SEAT BELTS	3
1992	43	-	POWER TRAIN:AUTOMATIC TRANSMISSION	1
1993	46	-	POWER TRAIN:AUTOMATIC TRANSMISSION	1
1995	93	107,263	AIR BAGS:FRONTAL	17
1996	37	-	ENGINE AND ENGINE COOLING:ENGINE:GASOLINE	0
1997	74	86,000	FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY	6
1998	68	80,000	POWER TRAIN:AUTOMATIC TRANSMISSION	3
1999	187	95,000	STRUCTURE:FRAME AND MEMBERS	25
2000	378	108,000	STRUCTURE:FRAME AND MEMBERS	22
2001	293	89,863	STRUCTURE:FRAME AND MEMBERS	34
2002	407	94,724	STRUCTURE:FRAME AND MEMBERS	50
2004	285	91,138	SUSPENSION	36
2005	217	80,000	AIR BAGS	44
2006	1422	73,838	AIR BAGS	55
2007	905	67,000	AIR BAGS	45
2008	554	65,000	AIR BAGS	24
2009	610	68,783	SERVICE BRAKES	29
2010	415	65,000	STRUCTURE:BODY	23
2011	4582	75,702	STEERING	194
2012	2254	80,000	ENGINE	86
2013	2602	79,000	ENGINE	138
2014	1061	70,000	ENGINE	48
2015	1611	53,758	ENGINE	60
2016	960	62,100	ENGINE	37
2017	964	53,900	ENGINE	46
2018	519	19,862	ENGINE	26
2019	182	23,000	ENGINE	11
2020	236	2,700	FUEL/PROPULSION SYSTEM	8
2021	156	24,725	ENGINE	11
2022	123	13,500	POWER TRAIN	14
2023	130	11,000	FUEL/PROPULSION SYSTEM	12
2024	61	2,000	ELECTRICAL SYSTEM	3

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