Reliability & cost of ownership
Mercedes Benz GLS550 Reliability & Common Problems
How reliable is the Mercedes Benz GLS550? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for its AI reliability outlook where NHTSA has enough data.
Mercedes Benz GLS550 problems by model year
5 recall entries and 0 owner complaints on file across 1 model year, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2017 GLS550 | 5 | 0 | No NCAP test | AI reliability outlook → |