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Mercedes-Benz GLS 550

Model years 2018–2019 · 4 recall campaigns · 2 complaints · 0 investigations · filed by Mercedes-Benz USA, LLC

Across 2 model years (2018–2019), the Mercedes-Benz GLS 550 has 4 NHTSA recall campaigns and 2 complaints on file.

The component named most often in complaints is power train (500 per 1,000 component mentions), followed by unknown or other (500).

The 2018 model year has the most complaints (2). Recall campaigns peaked in 2017 with 1; complaints were received in the largest number in 2018 (2). Within Mercedes Benz, this line ranks 126 of 282 by total complaints.

Complaints are consumer reports and have not been verified by NHTSA.

Model years

Model yearRecallsComplaintsvs line averageUnits in campaigns
2018 Mercedes-Benz GLS 55032200%1,310,002
2019 Mercedes-Benz GLS 550200%1,534,980

"vs line average" is the model year's complaints as a share of the line's average per model year (100% = average). A campaign covering several model years counts once per year. Model years with one campaign and fewer than 25 complaints are listed but have no page of their own; the NHTSA link opens the agency's record.

Components most reported

Per 1,000 component mentions across all Mercedes-Benz GLS 550 complaints (2 mentions).

Campaigns by year reported

17
18
19
20
21
22
23
24
25
26
Distinct NHTSA campaigns naming the Mercedes-Benz GLS 550, by the year the Part 573 report was received.

Complaints by year received

18
19
20
21
22
23
24
25
26
Complaints about any Mercedes-Benz GLS 550 model year, by year received.

Other Mercedes Benz model lines

All 282 Mercedes Benz model lines

Questions and answers

Which Mercedes-Benz GLS 550 model years have the most recalls?

2018 (3), 2019 (2). Across model years 2018–2019 there are 4 distinct campaigns.

Which Mercedes-Benz GLS 550 model year has the most complaints?

2018, with 2 of the line's 2 complaints. Newer model years have had less time to accumulate reports.

What do owners of the Mercedes-Benz GLS 550 complain about?

power train (500 per 1,000 mentions), unknown or other (500 per 1,000 mentions). Complaints are consumer reports and have not been verified by NHTSA.

Where does this data come from?

NHTSA Office of Defects Investigation recall and complaint flat files, public domain, dated 29 Sep 2026 and 15 May 2019.

Provenance

Source: NHTSA Office of Defects Investigation recall, complaint and investigation flat files, public domain, dated 29 Sep 2026 and 15 May 2019. Model names are as NHTSA records them; variants such as "Accord" and "Accord Hybrid" are separate lines. See the methodology.