2021 Mercedes-Benz GLC 300 vs 2021 Toyota Highlander
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Sep 22, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2021 Mercedes-Benz GLC 300 | 2021 Toyota Highlander |
|---|---|---|
| NHTSA complaints | 66 | 512 |
| Recall campaigns | 9 | 4 |
| Service bulletins (TSBs) | 212 | 180 |
| Investigations | 0 | 0 |
| Crash reports | 1 | 16 |
| Fire reports | 2 | 4 |
| NCAP overall rating | — | 5/5 |
| EPA MPG (combined) | 25 | 23–36 |
| Median reported incident mileage | — | 29,055 mi |
Reported problems side by side
| Component | Mercedes-Benz GLC 300 | Toyota Highlander |
|---|---|---|
| Power Train | 4 | 219 |
| Engine | 30 | 44 |
| Service Brakes | 0 | 66 |
| Structure | 3 | 51 |
| Air Bags | 1 | 42 |
| Fuel/propulsion System | 10 | 31 |
| Electrical System | 8 | 26 |
| Exterior Lighting | 13 | 7 |
Symptoms owners describe
| Check engine light | 15 | 12 |
| Loss of power | 12 | 25 |
| Stalling | 6 | 19 |
| Misfire / rough idle | 5 | 0 |
| Hesitation / surging | 5 | 33 |
| Vibration / shaking | 5 | 19 |
| Shifting problems | 0 | 8 |
| Brake problems | 0 | 6 |
2021 Mercedes-Benz GLC 300
2021 Toyota Highlander
Compare all Mercedes-Benz GLC 300 vs Toyota Highlander 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.