Wondering When To Replace Brake Pads: A Simple Guide To Pads Replacement, Brake Pads Replacement is necessary in every 25,000 to 65,000 miles, and rotors every 30,000 to 70,000 miles. The precise figure, however, can vary depending on factors like weather and personal driving preferences. The good news is that when your brake pads are nearing the end of their life, you will likely experience minor symptoms, making diagnosis and repairs simple. Not sure if your brake pads or rotors need to be replaced? Here are six indicators that you might need new brake pads or rotors.