bmw Available Here. One of the small parts in your vehicle's interior that you use every time you drive is also one of the parts you may never even consider until it needs replacing. Brake pedal rubbers go over the brake pedal to provide sufficient traction and grip between your foot and the pedal, to prevent slippage and increase safety. When the brake pedal rubbers become worn down, the metal of the actual pedal may begin to show through, and this can result in a slippery or slick surface. Replace this cover at the earliest sign of wear to ensure good grip and traction.