2019 Mercedes-Benz GLS-Class: owner complaints and recalls
Analysis of 26 owner complaints filed with NHTSA and 0 recall campaigns. Updated 2026-07-25.
26
Complaints
0
Recalls
1
Crash reports
2
Fire reports
2
Injuries
123.1
Severity index
Severity index 123.1 - High. This weights crashes, fires, injuries and fatalities per 100 complaints; see methodology.
What actually fails
| Component | Complaints | Share of complaints citing it |
|---|---|---|
| UNKNOWN OR OTHER | 6 | 23.1% |
| SUSPENSION | 5 | 19.2% |
| ENGINE | 4 | 15.4% |
| ENGINE AND ENGINE COOLING | 4 | 15.4% |
| ELECTRICAL SYSTEM | 3 | 11.5% |
| STRUCTURE | 2 | 7.7% |
| STEERING | 2 | 7.7% |
| AIR BAGS | 2 | 7.7% |
The single most-reported system is UNKNOWN OR OTHER, cited in 6 of 26 complaints (23.1%). One complaint can name several systems, so these shares overlap and do not total 100%.
Complaints filed per year
| Year | Complaints |
|---|---|
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 (year to date) | 3 |
Complaint volume is rising - the last three years carry 2.0x 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.