The five core points of brake system maintenance include: First, regularly check the wear of brake pads and discs. It is best to inspect them every 5,000 kilometres. When the thickness of the brake pads approaches 5 mm or abnormal noises occur, they must be replaced. After replacement, a break-in period of 200 to 300 kilometres is required to achieve optimal braking performance. Second, brake fluid should be replaced every 20,000 to 40,000 kilometres or every 2 to 3 years. In humid areas, the interval should be shortened to 20,000 kilometres annually to maintain a stable boiling point and ensure moisture content does not exceed 3%. Third, maintain brake system cleanliness. Fourth, routinely inspect brake lines and hoses. Immediate repairs are necessary if aging, leaks, or looseness are detected. Additionally, air must be bled from the lines to guarantee braking effectiveness. When descending mountain roads, utilize lower gears for supplemental braking. Note that emergency braking should be minimized during the first 1,000 kilometres of a new vehicle's break-in period. Any brake pulling or pedal abnormalities require prompt servicing to maintain system synchronization.