What is the fuel economy of a 2021 Mercedes-Benz GLS450 4matic?

EPA figures for the 2021 Mercedes-Benz GLS450 4matic reach 21 MPG combined depending on configuration; the table on this page lists every tested engine and transmission combination.

Are there recalls on the 2021 Mercedes-Benz GLS450 4matic?

NHTSA lists 12 safety recall campaigns for the 2021 Mercedes-Benz GLS450 4matic. Check your specific vehicle by VIN on the official NHTSA site - recalls are fixed free of charge by dealers.

What are common problems with the 2021 Mercedes-Benz GLS450 4matic?

Owners have filed 41 complaints with NHTSA for the 2021 Mercedes-Benz GLS450 4matic, most often about: Electrical System, Unknown Or Other, Lane Departure. Complaint counts reflect what owners report, not confirmed defects.

Mercedes-Benz · 2021

2021 Mercedes-Benz GLS450 4matic

Official EPA fuel economy and NHTSA recall record, best combined figure 21 MPG.

Fuel economy (EPA)

Engine	Transmission	Fuel	City	Highway	Combined	CO2 g/mi
3.0L 6-cyl	Automatic 9-spd	Premium	20	24	21	414

Safety recalls (NHTSA)

12 campaigns on record for this model year. Recall repairs are free at dealers; check your exact vehicle by VIN on nhtsa.gov/recalls.

Campaign 20V089000

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 CLA250, CLA250 4MATIC and CLA35 AMG 4MATIC, 2020-2021 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC and GLS580 4MATIC and 2021 GLE53 AMG Coupe, GLE63S AMG 4MATIC, GLS63 AMG 4MATIC and Maybach GLS600 4MATIC vehicles. The instrument cluster software may deactivate the illumination of certain interior switches (switch bar, overhead cont

Campaign 21V832000

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2021 GLE 350, GLE 580, GLS 450, GLS 580, AMG GLE 53, AMG GLE 63 S, and AMG GLS 63 S vehicles. The rear window may be insufficiently bonded to the tailgate, which could allow the rear glass to detach.

Campaign 21V354000

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The MBUX multimedia system software may cause the display to remain black, or reboot after startup. This coul

Campaign 21V058000

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 specific vehicle model details. The software design of the communication module may fail to communicate the correct veh

Campaign 22V365000

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 specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connecti

Campaign 22V680000

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2022 GLE350, GLE450, GLS450, 2021-2022 AMG GLE53, 2020-2021 GLE580, GLS580, and 2021 GLE400e, AMG GLS63, AMG GLE63 S, and Maybach GLS600 vehicles. Due to a manufacturing error, the rear door window trim bars may detach.

Campaign 22V732000

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 AMG GLS63, 2020-2022 GLS450 and GLS580 vehicles. Due to a manufacturing error, the locks on the third-row seatbacks may fail in the event of a crash.

Campaign 22V231000

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2022 GLE450, GLS450, 2021-2022 AMG GLE53, 2020-2021 GLE580, GLS580, 2021 AMG GLE63, Maybach GLS600 and AMG GLS63 vehicles. A ground cable bolt for the 48V ground connection under the front passenger seat may not be secured properly, which can cause the electrical cable to overheat.

Campaign 23V445000

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.

Campaign 23V177000

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 GLE350, GLE450, GLS450, GLS580, 2021 AMG GLE53, AMG GLE63, Maybach GLS600, AMG GLS63, and 2020 GLE580 vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain into the passenger compartment.

Campaign 24V118000

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2023 GLE 450 and GLS 450 vehicles. The transmission may not fully downshift in certain conditions, causing the engine to stall.

Campaign 24V207000

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 GLE 350, 2020-2024 GLE 450, 2020-2023 GLS 580, GLE 580, 2019-2023 GLS 450, 2021-2023 Maybach GLS 600, AMG GLS 63, 2021-2024 AMG GLE 53, AMG GLE 53 Coupe, and AMG GLE 63 S vehicles. A 48-Volt ground connection under the passenger seat may not be secured properly, resulting in the ground connection overheating.

Owner complaints (NHTSA)

41 complaints filed by owners for this model year (1 involving a crash, 4 a fire). Complaints are owner reports, not confirmed defects - browse them in full on nhtsa.gov.

Electrical System 14 Unknown Or Other 8 Lane Departure 4

Decode this car's VIN All Mercedes-Benz models

Sources: EPA fueleconomy.gov, the NHTSA recalls, complaints and 5-Star Safety Ratings databases (all US public data), refreshed monthly. Recall texts are quoted from the official record. Details on About & Data Sources.