Mercedes-Benz GLS550 Problems by Year

Source: NHTSA · Updated Jul 6, 2026 · 14 owner complaints analyzed

NHTSA has 14 owner complaints and 7 safety recalls on file for the Mercedes-Benz GLS550, across 3 model years (2017–2019). The 2018 model year has the most complaints (6). The most reported problem area overall is engine.

Peak: 2017, with 6 complaints
2017: 6201762018: 6201862019: 220192

n = 14 complaints · Source: NHTSA

Mercedes-Benz GLS550 years to avoid? What the complaint data shows

No GLS550 model year stands out with more than twice the complaints of a typical year.

Model years with the most complaints

  1. 2018 GLS550: 6 complaints, 3 recalls
  2. 2017 GLS550: 6 complaints, 5 recalls
  3. 2019 GLS550: 2 complaints, 2 recalls

Complaint counts are not adjusted for how many cars were sold or how long each year has been on the road, so newer and less popular years naturally have fewer complaints. Use them to spot problem patterns, not as a safety ranking.

Most common Mercedes-Benz GLS550 problems (all years)

Problem areaComplaintsModel yearsCrashes
Engine220
Power Train220
Suspension220
Electrical System110
Engine and Engine Cooling110
Fuel/propulsion System110
Seat Belts110
Seats110
Service Brakes, Air110
Visibility/wiper110

All Mercedes-Benz GLS550 model years

Model yearComplaintsRecallsCrash ratingTop problemCompared with other years
2019 GLS55022—Engine
2018 GLS55063—Unknown or Other
2017 GLS55065—Unknown or Other

More from Mercedes-Benz: all Mercedes-Benz models · Mercedes-Benz VIN decoder

Frequently asked questions

Which Mercedes-Benz GLS550 years should you stay away from?

No year stands out at twice the typical count; the most complaints are for 2018 (6), 2017 (6), 2019 (2). Counts are not adjusted for how many cars were sold, and newer years have had less time to collect complaints.

What is the biggest problem with the Mercedes-Benz GLS550?

Engine, with 2 complaints across 2 model years.

How many recalls does the Mercedes-Benz GLS550 have?

7 safety recalls across all model years. Each model year page lists its recalls and fixes.