2023 Mercedes-Benz GLS-Class
The Verdict
Worst problem area
No complaints reported
No complaints have been filed with NHTSA for this model-year.
Complaints filed held steady at 0 in both 2022 and 2023.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
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Cost, Fuel Economy & Complaint History
| Category | 2021 | 2022 | 2023 | 2024 | 2025 | vs. 2023 Standard Sport Utility Vehicle 4WD |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 3,700–4,850 | 3,900–5,150 | 3,900–4,850 | 3,700–4,850 | 3,700–5,150 | |
| Combined MPG | 16–21 | 15–20 | 16–20 | 16–21 | 15–21 | |
| City / Highway MPG | 14–20 / 18–24 | 14–18 / 18–24 | 14–18 / 19–23 | 14–19 / 18–24 | 13–19 / 18–24 | |
| CO₂ tailpipe (g/mi) | 414–559 | 433–571 | 433–560 | 428–574 | 428–588 | |
| Complaints filed | 37 | 0 | 0 | 0 | 0 | |
| Recalls issued | 12 | 4 | 0 | 0 | 0 | |
| Crash-involved complaints | 2 | 0 | 0 | 0 | 0 | |
| Fire-involved complaints | 2 | 0 | 0 | 0 | 0 | |
| Injuries reported | 3 | 0 | 0 | 0 | 0 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 4 | 4 | 4 | 4 | 4 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2023 Mercedes-Benz GLS-Class have?
No NHTSA recall campaigns as of Sep 16, 2026.
What gas mileage does the 2023 Mercedes-Benz GLS-Class get?
EPA rates it 16–20 MPG combined across 4 configurations.
How much does it cost to fuel a 2023 Mercedes-Benz GLS-Class?
EPA estimates $3,900–$4,850 a year in fuel costs, using EPA's assumptions.
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EPA-Rated Configurations (4)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic 9-spd | 6 | 3.0L | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD | 18 mpg (high) | 23 mpg (high) | 20 mpg (high) | $3,900 (low) | 433 g/mi (low) |
| Configuration 2 | Automatic 9-spd | 8 | 4.0L | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD | 14 mpg (low) | 19 mpg (low) | 16 mpg (low) | $4,850 (high) | 560 g/mi (high) |
| Configuration 3 | Automatic 9-spd | 8 | 4.0L | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD | 15 mpg | 20 mpg | 17 mpg | $4,550 | 528 g/mi |
| Configuration 4 | Automatic 9-spd | 8 | 4.0L | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD | 16 mpg | 21 mpg | 18 mpg | $4,300 | 499 g/mi |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 0 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 0 | 0 | 0 | 0 | 0 |
| Fuel System | 0 | 0 | 0 | 0 | 0 |
| Electrical | 0 | 0 | 0 | 0 | 0 |
| Brakes | 0 | 0 | 0 | 0 | 0 |
| Steering | 0 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 0 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 0 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 0 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 0 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 0 | 0 | 0 | 0 | 0 |
| Other | 0 | 0 | 0 | 0 | 0 |
Recalls
No recalls have been issued for this model-year.