Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 0 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Service Brakes, Hydraulic. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
1 reports
Mileage unknown · Jul 10, 2013
Service Brakes, Hydraulic
HELLO, I WOULD LIKE TO NOTIFY A DEFECT ON A VEHICLE MERCEDES GL 500 MODEL SERIES X166 MADE IN 2012 IN U.S. PLANT BY MERCEDES COMPANY IN SEATTLE. WHILE DRIVING THERE WAS A FAULT IN THE BRAKING SYSTEM WITHOUT ANY WARNING LIGHTS. DURING THE BRAKING THE BRAKE WAS PUSHED TO THE FLOOR, BUT THE VEHICLE WAS NOT STOPPING. IN THE CASE IF …
Read full complaint
HELLO, I WOULD LIKE TO NOTIFY A DEFECT ON A VEHICLE MERCEDES GL 500 MODEL SERIES X166 MADE IN 2012 IN U.S. PLANT BY MERCEDES COMPANY IN SEATTLE. WHILE DRIVING THERE WAS A FAULT IN THE BRAKING SYSTEM WITHOUT ANY WARNING LIGHTS. DURING THE BRAKING THE BRAKE WAS PUSHED TO THE FLOOR, BUT THE VEHICLE WAS NOT STOPPING. IN THE CASE IF THE VEHICLE WAS DRIVEN BY AN INEXPERIENCED DRIVER, IT IS MORE THAN CERTAIN THERE WOULD HAVE BEEN AN ACCIDENT. THE VEHICLE IS CURRENTLY LOCATED AT AN AUTHORIZED MERCEDES SERVICE IN TRENCIN (SLOVAKIA) AND HEADQUARTERS COMPANY DOES NOT APPEAR INTERESTED IN RESOLVING THIS SERIOUS SECURITY DEFECT. THEREFORE, THE VEHICLE WAS MANUFACTURED IN AMERICA AND MOSTLY IS SOLD IN THE U.S. MARKET; I GIVE THIS FACT TO YOUR ATTENTION WITH THE RECOMMENDATION TO INVESTIGATE THE TECHNICAL CONDITION OF THESE VEHICLES.
NHTSA ODI #10524428
Official recalls
0
No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2012 Mercedes Benz GL500 Problems, Complaints & Recalls | Skip That Year