2018 Mercedes-Benz GLS-Class problems and recalls

The 2018 Mercedes-Benz GLS-Class has no recalls on file. Owners have filed 22 complaints, most often on the Service Brakes.

22
Complaints
0
Recalls
1
Crash reports
3
Fire reports
0
Injuries
68.0
Severity index

Severity index 68.0 Medium. The index weights crashes, fires, injuries and fatalities per 100 complaints. How it is calculated.

Middle half of all tracked vehiclesThis vehicle: 68.0p25 46p75 80cleanestworst
Severity index against the quartile range for all tracked vehicles.

Components cited in complaints

Service BrakesService Brakes: 5 complaints (22.7%)5 23%SuspensionSuspension: 4 complaints (18.2%)4 18%Unknown Or OtherUnknown Or Other: 4 complaints (18.2%)4 18%Electrical SystemElectrical System: 3 complaints (13.6%)3 14%EngineEngine: 2 complaints (9.1%)2 9%StructureStructure: 2 complaints (9.1%)2 9%Power TrainPower Train: 2 complaints (9.1%)2 9%Forward Collision Avoid…Forward Collision Avoidance: 1 complaints (4.5%)1 5%
A single complaint can cite more than one component, so shares total over 100%.
ComponentComplaintsShare of complaints citing it
SERVICE BRAKES522.7%
SUSPENSION418.2%
UNKNOWN OR OTHER418.2%
ELECTRICAL SYSTEM313.6%
ENGINE29.1%
STRUCTURE29.1%
POWER TRAIN29.1%
FORWARD COLLISION AVOIDANCE14.5%

Complaints filed per year

0362018: 62020: 32021: 42022: 22023: 12024: 12025: 42026: 1 (partial year)18620212223242526
Complaints by the calendar year they were filed. The hatched bar is the current year to date.
YearComplaints
20186
20203
20214
20222
20231
20241
20254
2026 (year to date)1
Filings in 2023 to 2025 were close to 2020 to 2022 (6 against 9).

Other Mercedes-Benz GLS-Class model years

Severity index for every other model year on file. Compare all 6 years side by side.

Source. NHTSA public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-07-25. Complaints are unverified consumer reports. Totals vary with units sold and years on the road. Not affiliated with NHTSA or any manufacturer.