The parking brake is applied by which type of system?

Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

The parking brake is applied by a mechanical system, usually a cable. Engaging the lever or pedal tightens a steel cable that runs to the rear brake assemblies, where it either pulls the brake shoes against a drum or clamps the caliper pistons to hold the wheel. This direct mechanical linkage means the parking brake can function even if the hydraulic brake system loses pressure, giving a reliable way to keep the vehicle from moving. Pneumatic or hydraulic systems govern the primary service brakes, not the parking brake, and while some modern setups use electric control to operate a cable or actuator, the fundamental method described here is mechanical.