2020 Mercedes-Benz GLC-Class: owner complaints and recalls
Analysis of 77 owner complaints filed with NHTSA and 0 recall campaigns. Updated 2026-07-25.
77
Complaints
0
Recalls
3
Crash reports
2
Fire reports
4
Injuries
72.7
Severity index
Severity index 72.7 - Medium. This weights crashes, fires, injuries and fatalities per 100 complaints; see methodology.
Among the 103 2020 vehicles we track with at least 40 complaints on file, the 2020 Mercedes-Benz GLC-Class ranks 36 of 103 by severity, where 1 is the worst. Its severity is higher than 65% of its model-year peers. See the full 2020 ranking.
What actually fails
| Component | Complaints | Share of complaints citing it |
|---|---|---|
| ENGINE | 26 | 33.8% |
| UNKNOWN OR OTHER | 16 | 20.8% |
| ELECTRICAL SYSTEM | 10 | 13.0% |
| BACK OVER PREVENTION | 8 | 10.4% |
| POWER TRAIN | 6 | 7.8% |
| EXTERIOR LIGHTING | 5 | 6.5% |
| FORWARD COLLISION AVOIDANCE | 5 | 6.5% |
| STEERING | 5 | 6.5% |
The single most-reported system is ENGINE, cited in 26 of 77 complaints (33.8%). One complaint can name several systems, so these shares overlap and do not total 100%.
Complaints filed per year
| Year | Complaints |
|---|---|
| 2020 | 5 |
| 2021 | 9 |
| 2022 | 13 |
| 2023 | 11 |
| 2024 | 13 |
| 2025 | 20 |
| 2026 (year to date) | 6 |
Complaint volume is rising - the last three years carry 1.6x the filings of the three before them, which usually signals a wear-related defect surfacing with age.
Source. US National Highway Traffic Safety Administration public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-07-25. Complaints are unverified consumer reports; volume is influenced by how many units were sold and how long the vehicle has been on the road. Not affiliated with NHTSA or any manufacturer.