Is the Mercedes-Benz GLS550 reliable?

The Mercedes-Benz GLS550 has 6 total NHTSA complaints across 1 model years. Years to avoid: 2017 (6 complaints).

What years of the Mercedes-Benz GLS550 should I avoid?

Avoid the 2017 Mercedes-Benz GLS550. The 2017 model has the most complaints (6) with the top issue being OTHER.

Reliability and problems by year based on NHTSA complaint data.

Year	Complaints	Top Issue	Verdict
2017	6	I LOWER THE PASSENGER CAR WINDOW WHEN I ENTERED TH...	Below Average