2021 Porsche Cayenne vs 2021 Subaru Ascent
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Sep 3, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2021 Porsche Cayenne | 2021 Subaru Ascent |
|---|---|---|
| NHTSA complaints | 20 | 102 |
| Recall campaigns | 5 | 2 |
| Service bulletins (TSBs) | 698 | 361 |
| Investigations | 0 | 0 |
| Crash reports | 0 | 3 |
| Fire reports | 0 | 1 |
| NCAP overall rating | — | 5/5 |
| EPA MPG (combined) | 19–20 | 23 |
| Median reported incident mileage | — | — |
Reported problems side by side
| Component | Porsche Cayenne | Subaru Ascent |
|---|---|---|
| Electrical System | 6 | 18 |
| Power Train | 2 | 19 |
| Engine | 3 | 12 |
| Visibility/wiper | 1 | 14 |
| Lane Departure | 0 | 15 |
| Service Brakes | 2 | 9 |
| Forward Collision Avoidance | 2 | 7 |
| Steering | 2 | 7 |
Symptoms owners describe
| Hesitation / surging | 0 | 6 |
| Stalling | 0 | 5 |
| Vibration / shaking | 0 | 5 |
2021 Porsche Cayenne
2021 Subaru Ascent
Compare all Porsche Cayenne vs Subaru Ascent years →
Method. Complaints are unique NHTSA reports. A vehicle that sold more units will naturally accumulate more complaints — use shares and read the underlying reports before drawing conclusions.