1. Drum brakes: Drum brakes typically need to be replaced when the brake linings are worn down to 1/8 inch (3 mm) or less.
2. Disc brakes: Disc brakes need to be replaced when the brake pads are worn down to 1/4 inch (6 mm) or less.
3. Ceramic brakes: Ceramic brakes typically last longer than traditional brake pads and rotors, and may only need to be replaced every 50,000 to 75,000 miles (80,000 to 120,000 kilometers).
In addition to these general guidelines, there are a few signs that may indicate that it's time to change your brakes, such as:
- Squealing or grinding noises when you brake.
- A soft or spongy brake pedal.
- Your car pulls to one side when you brake.
- The brake warning light on your dashboard comes on.
If you notice any of these signs, it's important to have your brakes inspected by a qualified mechanic to determine if they need to be changed.