On most cars, how do you know when it's time to replace your brake pads?
Answer All of the above
Every single time you press the brake pedal, a little piece of your brake pad dies. Since the brake pads are hidden from sight and hard to inspect, wear sensors are built into them. These sensors are utilized in all pads and are either a mechanical bit or a higher-tech electronic sensor. The first method causes the pad to emit a squeal every time they are depressed. On the electronic versions, once the pad is worn to a certain level, a service brake light is triggered in the cluster.
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