Most low brake pedal problems are caused by air in the hydraulic system. Bleed the system until all air is purged. Refer to Antilock Brake System Automated Bleed Procedure in Antilock Brake System. Other less frequent causes of excessive pedal travel are excessively worn linings and hydraulic system leakage. At reasonably frequent intervals. Measure the brakes for pedal travel, which is the distance the pedal moves toward the floor from a fully released position.

1. With the engine off, pump the brake pedal a minimum of 3 times in order to exhaust the vacuum assist from the power brake booster.
2. Hook the end of a tape measure over the top edge of the brake pedal. Measure the distance to the rim of the steering wheel.
3. Depress the brake pedal with approximately 95 N·m (70 lb) of force while the brakes are cold. Remeasure the distance to the rim of the steering wheel. The pedal travel should not exceed 70 mm (2.75 in).