Kia Optima
2004 only
2004 Kia Optima have 238 classified complaints on record for that year specifically. The most common issue in this year is Doors, windows, latches, seats and trim, typically surfacing around 95,000 miles.
Computed directly from stored federal records for 2004 model years only — not blended with the rest of this vehicle's production run. See the full Kia Optima report for every year combined.
Where this year fits
What breaks, and when — 2004 only
Median onset: 95,000 miles. 2.1% of these reported an injury, a death, or a crash with fire.
More common in older model years.
Median onset: 91,000 miles. 17.4% of these reported an injury, a death, or a crash with fire.
More common in older model years.
Median onset: 85,854 miles.
More common in older model years.
Median onset: 59,500 miles.
Tends to show up earlier than this model's other issues. · More common in newer model years.
Median onset: 89,400 miles.
More common in newer model years.
Median onset: 132,500 miles.
Tends to show up later than this model's other issues. · Typical repair: $630–$1,700 nationally.
Median onset: 94,650 miles.
More common in older model years. · Typical repair: $230–$700 nationally.
Median onset: 39,000 miles.
Tends to show up earlier than this model's other issues. · More common in older model years.
From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works. Cost ranges are national estimates from book labor hours and parts pricing, not this vehicle's actual repair history — they don't account for your location or shop type.
Cost estimator: what will this one cost you?
Enter the car's year and mileage. See which known problems are due in your next 3 years, what each costs at your state's labor rates, which ones to ask the seller about, and routine maintenance to budget for.
Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2004 model year. See the full Kia Optima report for every year and full specs/safety data.