Kia Sephia vs Mazda Millenia
Owner complaints, worst years and recall history side by side, from official NHTSA data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
Kia Sephia
- Total complaints
- 1,679
- Avg per model year
- 189
- Recall campaigns (all years)
- 4
- Most complained year
- 1998 (491)
Top problems: Service Brakes, Hydraulic, Engine and Engine Cooling, Electrical System
Mazda Millenia
- Total complaints
- 207
- Avg per model year
- 30
- Recall campaigns (all years)
- 0
- Most complained year
- 1995 (82)
Top problems: Engine and Engine Cooling, Power Train, Air Bags
Complaints by model year
| Year | Kia Sephia | Mazda Millenia | ||
|---|---|---|---|---|
| 2002 | 6 | 21 | ||
| 2001 | 107 | 29 | ||
| 2000 | 266 | 19 | ||
| 1999 | 428 | 27 | ||
| 1998 | 491 | 29 | ||
| 1997 | 205 | 16 | ||
| 1996 | 118 | 15 | ||
| 1995 | 64 | 82 |
Method. Complaints are unique NHTSA reports per model year. A model that sold more units will naturally accumulate more complaints — compare the shape across years, not just the raw totals, and read the year pages for what actually fails.