2004 Pontiac Montana vs 2004 Toyota Sienna
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 8, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2004 Pontiac Montana | 2004 Toyota Sienna |
|---|---|---|
| NHTSA complaints | 39 | 2,062 |
| Recall campaigns | 3 | 10 |
| Service bulletins (TSBs) | 452 | 257 |
| Investigations | 1 | 8 |
| Crash reports | 8 | 51 |
| Fire reports | 1 | 8 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 18–20 | 18–20 |
| Median reported incident mileage | 43,370 mi | 75,000 mi |
Reported problems side by side
| Component | Pontiac Montana | Toyota Sienna |
|---|---|---|
| Structure | 3 | 962 |
| Latches/locks/linkages | 5 | 308 |
| Steering | 1 | 159 |
| Electrical System | 5 | 132 |
| Tires | 0 | 124 |
| Vehicle Speed Control | 2 | 111 |
| Seat Belts | 1 | 98 |
| Power Train | 2 | 89 |
Symptoms owners describe
| Rust / corrosion | 0 | 110 |
| Hesitation / surging | 0 | 65 |
| Stalling | 0 | 60 |
| Clunking / rattling | 0 | 15 |
| Loss of power | 0 | 14 |
| Vibration / shaking | 0 | 13 |
| Steering problems | 0 | 10 |
| Check engine light | 0 | 9 |
2004 Pontiac Montana
2004 Toyota Sienna
Compare all Pontiac Montana vs Toyota Sienna 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.