Verdict
2017 Mercedes GLS: Complaints, Recalls & Known Issues
What the public record actually says about the 2017 Mercedes GLS — every figure below is a NHTSA or EPA number, not an opinion.
The read
Fewer reported complaints than most SUV.
Owners filed 41 NHTSA complaints — fewer complaints than 70% of 2017 SUVs. Electrical System leads the reports (17%). No safety recalls on record.
Based on NHTSA complaint volume against 2017 SUVs, not adjusted for how many were sold. It describes the model year, not the individual car you are looking at.
Complaints filed
41
Reports to NHTSA, 2017
Safety recalls
0
NHTSA campaigns on record
NHTSA crash test
Not rated
Overall NCAP rating
Combined MPG
No data
EPA estimate
Complaint volume vs. segment peers
Fewer complaints than 70% of 2017 SUVs
The bar is this car's percentile among 2017 SUVs by complaint volume — a full bar means the fewest complaints in its class. Not adjusted for sales.
Known issues
Electrical System issues lead owner complaints (17% of 41 reports), followed by unknown or other (17%).
+ 6 more component categories with fewer reports.
Share of all 41 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11619840, ODI 11513006, ODI 11452172, ODI 11191265, ODI 11710906.
Recalls
0 recalls — none issued for this model year as of Jul 2026. Recall records can change as NHTSA publishes new campaigns.
A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.
Investigations
0 NHTSA investigations on record
No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.
Crash-test ratings
2017 Mercedes-Benz GLS-Class SUV 4WD NHTSA source
- Overall
- Not rated
- Frontal
- Not rated
- Side
- Not rated
- Rollover
- Not rated
Fuel economy by trim
No EPA fuel-economy record is available for this model year. Some trims and older vehicles were not tested or are not in the current EPA feed.
Before you buy
Useful next checks
Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.
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Compare model years
"Fewest reports" and "most complained" describe raw NHTSA complaint totals, not vehicle reliability. The last few model years are left unlabelled because they have had less road time.
2017 Mercedes GLS: frequently asked
What does the complaint record show for the 2017 Mercedes GLS?
Owners filed 41 NHTSA complaints about the 2017 Mercedes GLS — fewer complaints than 70% of comparable 2017 SUVs, so it sits toward the stronger end of its class. That's a signal, not a guarantee about any single car.
What are the most common problems on the 2017 Mercedes GLS?
The most-reported problem areas are Electrical System (17% of complaints) and unknown or other (17%).
How many recalls does the 2017 Mercedes GLS have?
No safety recalls are on record for the 2017 Mercedes GLS as of Jul 2026.
What gas mileage does the 2017 Mercedes GLS get?
EPA fuel-economy figures for the 2017 Mercedes GLS aren't available yet.