2017 Mercedes-Benz GLS 550 Other or unknown Problems
- Complaints
- 3about this part
- Share
- 50%of 6 total for the year
- Median mileage
- 32,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the other or unknown of the 2017 Mercedes-Benz GLS 550, 50% of the 6 complaints for this model year. Where a mileage was given, the median is 32,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I purchased a 2017 gls 550 in january 2018 from loeber motors in lincolnwood illinois. The sticker on the vehicle represented that there were 'all season' tires on the vehicle. After numerous guarantees from the salesmen, I was assured that the vehicle would be 'safe' on the factory tires as they were represented as all season. It was not until I found myself driving through a spring snowstorm in wisconsin that I realized that there was something terribly wrong with the way the vehicle was handling in the storm. …”
NHTSA complaint #11092420, filed 2018-05, 11,000 miles“My wife and I were driving from arizona to colorado. We were traveling at about 85 miles/ hr passing albuquerque. All of a sudden we felt and heard an explosion. My wife and I both ducked and fortunately I kept my hands on the wheel. We looked up and the sunroof had shattered and blown out. The only thing that saved us from being showered with glass was the shade of the sunroof was closed because the sunroof was closed at the time. We had t drive the remaining 400 miles with the broken sunroof. When we got back home , we contacted mercedes and asked them about the sunroof. …”
NHTSA complaint #11402698, filed 2021-03, 54,000 miles“I lower the passenger car window when I entered the car in a very hot day and the window glass exploted. I took the car to the dealer and they said it was not a car defect. However, the car window glass just exploted just by lowering it.”
NHTSA complaint #10970780, filed 2017-04Related service bulletins
- 11035780Aug 4, 2026Complaint Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L…
- 10205835Sep 16, 2021Model series 167 noise on B/C/D pillars.
- 10205154Aug 5, 2016Gasket may settle causing a slight oil leak.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2018 | 2 | 33% |
| 2017 | 3 | 50% |
Other parts of the 2017 Mercedes-Benz GLS 550
← All problems reported for the 2017 Mercedes-Benz GLS 550
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology