Kia Sephia vs Oldsmobile Achieva
Owner complaints, worst years and recall history side by side, from official NHTSA data. Last verified Aug 8, 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
Oldsmobile Achieva
- Total complaints
- 413
- Avg per model year
- 52
- Recall campaigns (all years)
- 3
- Most complained year
- 1996 (87)
Top problems: Electrical System, Engine and Engine Cooling, Service Brakes, Hydraulic
Complaints by model year
| Year | Kia Sephia | Oldsmobile Achieva | ||
|---|---|---|---|---|
| 2000 | 266 | 3 | ||
| 1998 | 491 | 40 | ||
| 1997 | 205 | 63 | ||
| 1996 | 118 | 87 | ||
| 1995 | 64 | 70 | ||
| 1994 | 16 | 62 |
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.