2017 Mercedes-Benz GLS550 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
6 owner complaints analyzed
5 distinct recall campaigns
54,000 mi median reported failure mileage
Scope: 2017 model year. Data snapshot: . 3 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Unknown Or Other is the most frequently named component, appearing in 3 of 6 complaints (50.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 1 | 16.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Unknown Or Other | 3 |
| Engine | 1 |
| Fuel/Propulsion System | 1 |
| Power Train | 1 |
Unknown Or Other: 3; Engine: 1; Fuel/Propulsion System: 1; Power Train: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 1; 25,000 to 49,999: 0; 50,000 to 74,999: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 1; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (1). 3 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2025 | 1 |
2017: 1; 2018: 1; 2020: 1; 2021: 2; 2025: 1
Pattern summary
Unknown Or Other leads the component reports. Steering behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11402698 · 2021-03-12 (March 12, 2021)
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 …
Owner-reported narrative. 54,000 miles reported. Look up ODI 11402698 at NHTSA ↗