Brake pads generally need to be replaced every 25,000 to 65,000 miles (40,000 to 105,000 kilometers), although this range can vary significantly based on driving conditions, terrain, weather, and driving style

. For example, city driving with frequent stops tends to wear brake pads faster than highway driving

. Key points on brake pad replacement frequency and signs:

• Mileage Range: Most sources agree on a replacement interval roughly between 25,000 and 65,000 miles, with some suggesting as low as 20,000 miles or as high as 80,000 miles depending on conditions

• Driving Style Impact: Aggressive braking, stop-and-go traffic, and carrying heavy loads accelerate brake wear, requiring more frequent replacement

• Visual Inspection: Brake pads should be replaced when the pad thickness is about 3-4 mm or less, or about 0.1 inch (2.5 mm)

. A visual check through the wheel spokes can help assess pad thickness

• Warning Signs:
  • Squealing or squeaking noises from the brakes indicate worn pads

* Grinding noises suggest pads are worn down completely and may be damaging rotors

* Reduced braking performance or longer stopping distances signal worn pads or other brake issues

* Brake warning lights on the dashboard may illuminate when pads are worn

* Vibration when braking can indicate warped rotors, often related to brake wear

• Maintenance Tips: It is recommended to have brake pads checked regularly, such as during tire rotations or oil changes, roughly every 10,000 to 16,000 miles (16,000 to 25,000 km)

• Rotors: When replacing brake pads, it is advisable to also replace or resurface rotors to avoid uneven wear and damage to new pads

In summary, brake pads typically should be replaced every 25,000 to 65,000 miles, but monitoring for signs of wear and having regular inspections are essential to ensure safety and optimal brake performance.