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Home >> Lexus >> 1996 >> LX 450 >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes & Drum Brakes >> Description & Operation

Description & Operation

WARNING: For warnings and procedures for Anti-Lock Brake Systems (ABS), see ANTI-LOCK BRAKE SAFETY PRECAUTIONS article.

Hydraulic brake system uses a tandem master cylinder with a vacuum power assist servo. Vehicles are equipped with front disc brakes and rear drum brakes standard. Rear disc brakes are optional.

A load-sensing proportioning valve is used to regulate brake pressure between front and rear brakes. Rear brakes are self-adjusting.

Parking brake lever mechanically activates the rear brakes. On models with rear drum brakes, a cable applies rear shoes. On models with rear disc brakes, parking brake is a drum brake internal to rear disc rotor assembly.