Service Brakes, Hydraulic problems — most reported vehicles
81,617 owner complaints filed with NHTSA name the service brakes, hydraulic component group. Below are the model years with the most reports. Last verified Aug 7, 2026.
Counts are unique NHTSA complaints naming this component for each model year. Complaints are unverified owner reports, and raw totals favor high-volume sellers — a popular model can rank high simply because more of them are on the road.
3,449 model years have service brakes, hydraulic reports in total. Browse all vehicles →