Model year guide

2021 Mercedes-benz GLS 600

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2021 Mercedes-benz GLS 600 is worth — from official NHTSA and EPA data. 1 on record.

2021 Mercedes-benz GLS 600 at a glance

Safety recallsNone
Combined16 mpg

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2021 Mercedes-benz GLS 600 recalls 0

No NHTSA safety-recall campaigns are on record for the 2021 Mercedes-benz GLS 600.

Source: U.S. NHTSA, checked 14 Oct 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2021 Mercedes-benz GLS 600 MPG & running costs

Combined16 mpg
City15 mpg
Highway19 mpg
Est. annual fuel cost$5,150
EPA size classStandard Sport Utility Vehicle 4WD
TransmissionAutomatic 9-spd
Forced inductionTurbocharged
Engine start-stopYes
5-yr fuel cost vs average new car$13,750 more

Source: U.S. EPA / DOE fueleconomy.gov.

Estimated 5-year cost to own

A rough guide to what running a 2021 Mercedes-benz GLS 600 costs over five years and 75,000 miles.

Fuel (5 yrs)$25,750
Fuel only$25,750
Per mile$0.34

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

2021 Mercedes-benz GLS 600 vehicles on record

Other Mercedes-benz GLS 600 model years

2021 Mercedes-benz GLS 600 — frequently asked questions

Does the 2021 Mercedes-benz GLS 600 have any safety recalls?

NHTSA lists no safety-recall campaigns for the 2021 Mercedes-benz GLS 600. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What gas mileage does the 2021 Mercedes-benz GLS 600 get?

The 2021 Mercedes-benz GLS 600 has a U.S. EPA estimate of 16 mpg combined (15 city / 19 highway).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.