Worst years for a Mercedes Benz GLS 450 4MATIC
Owners have filed 77 complaints about the Mercedes Benz GLS 450 4MATIC with NHTSA across model years 2022 to 2025. More of them are about the driver assist & collision avoidance than anything else.
Avoid
2022 Mercedes Benz GLS 450 4MATIC27 complaints — the highest FaultScore of any year, mostly driver assist & collision avoidance.
Cleanest on record
2023 Mercedes Benz GLS 450 4MATIC16 complaints — the lowest FaultScore of the graded years.
Every Mercedes Benz GLS 450 4MATIC year, graded
The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.
What breaks on a Mercedes Benz GLS 450 4MATIC
Across every model year on file. Follow a row for that part's complaints and the year it was worst.
Worst in 2022
Worst in 2022
Worst in 2024
Worst in 2022
Worst in 2023
Worst in 2022
Worst in 2024
Worst in 2022
Worst in 2023
Worst in 2022
Worst in 2024
Worst in 2025
Worst in 2025
Worst in 2024
Complaints filed over time
Every complaint about every Mercedes Benz GLS 450 4MATIC, by the month it reached NHTSA.
Compare the Mercedes Benz GLS 450 4MATIC
Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.