System Component Description

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The park brake system consists of the following:

Park Brake Lever Assembly: Receives, multiplies, and transfers park brake system apply input force from driver to park brake cable system.
Releases applied park brake system when lever release button is depressed and lever is returned to the at-rest position.
Park Brake Cables: Transfers input force received from park brake lever, through park brake cable equalizer, to park brake apply levers.
Park Brake Cable Equalizer: Evenly distributes input force to both the left and right park brake units.
Threaded front park brake cable adjuster is also used to remove slack in park brake cables.
Park Brake Apply Lever: Multiplies and transfers input force to park brake actuator/adjuster.
Disc Brake Caliper Actuator: Uses multiplied input force from park brake apply lever to apply disc brake caliper piston which compresses the brake pads against friction surface of brake rotor.
Drum Brake Actuator/Adjuster: Uses multiplied input force from park brake apply lever to expand drum brake shoes toward the friction surface of the brake drum.
Threaded drum brake actuators/adjusters are also used to control clearance between the drum brake shoes and the friction surface of the brake drum.