Model year
2018 Mercedes-Benz GLS-Class
NHTSA does not list the EPA model name GLS-Class for 2018. Under the matched names AMG GLS63, GLS 450, and GLS 550, NHTSA lists 4 recalls and 22 complaints (recall file dated Oct 23, 2026; complaint file dated Oct 23, 2026). The components listed on the most complaints for GLS 450 are SERVICE BRAKES (3), SUSPENSION (3), ENGINE (2). NHTSA lists crash-test variants for this model year and marks the overall rating Not Rated. EPA rates it 15–19 mpg combined depending on configuration (fuel economy file dated Sep 29, 2026). EPA's annual fuel-cost figures for these configurations are $4,350–$5,500, based on 15,000 miles and 55% city driving.
- 2017 42 complaints
- 2018 22 complaints
- 2019 28 complaints
- 2020 38 complaints
- 2021 38 complaints
- 2022 17 complaints
- 2023 10 complaints
- 2024 19 complaints
- 2025 10 complaints
- 2026 3 complaints
- 2027 0 complaints
Matched NHTSA names
The EPA model name is not itself a name in the NHTSA file for 2018. The counts in the answer are the sum of the names below. Overlap between those names is not removed.
| NHTSA name | Recalls | Complaints | Investigations |
|---|---|---|---|
| AMG GLS63 | 3 | 2 | 0 |
| GLS 450 | 3 | 14 | 0 |
| GLS 550 | 3 | 6 | 0 |
Recalls for GLS 450
22V365000 · May 20, 2022
COMMUNICATION: AUTO CRASH NOTIFICATION; ELECTRICAL SYSTEM:SOFTWARE
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for…
21V058000 · Feb 5, 2021
COMMUNICATION: AUTO CRASH NOTIFICATION; ELECTRICAL SYSTEM:SOFTWARE
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for…
18V539000 · Aug 16, 2018
SERVICE BRAKES, HYDRAULIC
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz GLE350 4Matic, GLE350, GLS450 4Matic, GLS550 4matic, GLE43 AMG 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic, and GLS63 AMG 4Matic vehicles. The rear brake caliper pistons on these vehicles may not have been…
Complaints for GLS 450
14 distinct complaints. Crash flag on 1, fire flag on 3, injury field 0, deaths field 0. A complaint can be counted under more than one component. The injury and death figures are the file's numbers (the highest value on each complaint, then added), not a separate verified count of people.
Investigations for GLS 450
No investigations are matched to this name.
Safety ratings
| Variant | Overall | Front | Side | Pole | Rollover | Photo |
|---|---|---|---|---|---|---|
| SUV 4WD | Not rated | Not Rated | Not Rated | Not Rated | Not Rated · possibility 0 | — |
Fuel economy
| Configuration | Fuel | City | Hwy | Comb | kWh/100 mi | Range | Annual fuel cost |
|---|---|---|---|---|---|---|---|
| GLS450 4matic · 3L · Automatic 9-spd · 4-Wheel Drive | Premium Gasoline | 17 | 22 | 19 | — | — | $4,350 |
| GLS550 4matic · 4.7L · Automatic 9-spd · 4-Wheel Drive | Premium Gasoline | 14 | 19 | 16 | — | — | $5,150 |
| AMG GLS63 · 5.5L · Automatic 7-spd · 4-Wheel Drive | Premium Gasoline | 13 | 18 | 15 | — | — | $5,500 |
Open this model year in the fuel-cost calculator. The calculator starts with no fuel price filled in.
Check a vehicle
This page is not a VIN lookup. NHTSA's recall tool checks a specific vehicle: nhtsa.gov/recalls. NHTSA's page for this model year is 2018 Mercedes-Benz GLS-Class at NHTSA. Complaint narratives stay on NHTSA's site and are not copied here.