Disc Brake Pad Servicing |
Author: Subaru |
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NUMBER DATE APPLICABILITY SUBJECT: The disc brake system used on vehicles today are designed and developed to meet many different but very strict requirements while providing the optimum level of performance under a wide range of vehicle operating conditions. The choice of brake pads is ultimately a balanced choice. As a result, a certain amount of brake noise can result. The pads used on today's vehicles may cause an occasional and intermittent high-pitched squeak or squeal when brakes are applied with light or moderate pedal pressure. If the brake system is confirmed to be functioning correctly, the customer should be assured that this is an operating characteristic of disc brakes and no repair should be attempted. Efforts to completely eliminate the occasional and intermittent noises that are judged to be normal, are frequently temporary. All brake noises should not arbitrarily be considered normal, however. They should be diagnosed as outlined in the appropriate model year service manual. An example of a similar noise requiring corrective action is the constant high-pitched squeal that is emitted by the disc brake wear warning sensor when brake pads are excessively worn. |