{"id":14001,"date":"2020-08-05T06:32:31","date_gmt":"2020-08-05T13:32:31","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=14001"},"modified":"2025-08-28T17:05:05","modified_gmt":"2025-08-29T00:05:05","slug":"how-do-car-brakes-work","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/how-do-car-brakes-work\/","title":{"rendered":"How Do Car Brakes Work?"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 7<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column14001_94822d-93 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column14001_94822d-93 > .kt-inside-inner-col,.kadence-column14001_94822d-93 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column14001_94822d-93 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column14001_94822d-93 > .kt-inside-inner-col{flex-direction:column;}.kadence-column14001_94822d-93 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column14001_94822d-93 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column14001_94822d-93{position:relative;}@media all and (max-width: 1024px){.kadence-column14001_94822d-93 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column14001_94822d-93 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column14001_94822d-93 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-81fbcc  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-d7519e\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading14001_915f41-73, .wp-block-kadence-advancedheading.kt-adv-heading14001_915f41-73[data-kb-block=\"kb-adv-heading14001_915f41-73\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading14001_915f41-73 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading14001_915f41-73[data-kb-block=\"kb-adv-heading14001_915f41-73\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading14001_915f41-73 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading14001_915f41-73[data-kb-block=\"kb-adv-heading14001_915f41-73\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading14001_915f41-73 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading14001_915f41-73\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The wheels on your vehicle come with their own brakes that are attached to a hydraulic device. These brakes respond to the brake pedal.<\/li>\n\n\n\n<li>There are two types of brakes: disc brakes and drum brakes.<\/li>\n\n\n\n<li>Vehicles also have a parking brake that can be applied by depressing a pedal, pulling a floor-mounted lever, or activating a handle from inside a vehicle.<\/li>\n\n\n\n<li>Modern vehicles are equipped with ABS to prevent the wheels from locking and losing traction while braking, especially on low-friction surfaces.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Brakes serve to slow down your car and bring it to a stop. But have you ever wondered how your car&rsquo;s brake system can bring your vehicle from a hundred miles per hour down to a snail&rsquo;s pace within a few seconds?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Brakes Work<\/h2>\n\n\n\n<p>Each wheel on your vehicle comes with its own brake and attached hydraulic device. All four brakes respond to the brake pedal.<\/p>\n\n\n\n<p>Stepping on the pedal activates its lever and its connected piston. Powered by your foot, the lever forces a piston inside the master cylinder. The piston then displaces <a href=\"https:\/\/www.carparts.com\/blog\/what-does-brake-fluid-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"brake fluid\">brake fluid<\/a><strong> <\/strong>out of the cylinder and into the lines that lead to either the brake calipers (in a disc brake system) or the wheel cylinders (in a drum brake system) hooked up to the brakes.<\/p>\n\n\n\n<p>Under pressure and expelled from the master cylinder, the brake fluid amplifies the force transmitted by your foot. Using this force, each brake caliper squeezes a pair of brake pads against a rotor, creating friction.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/new-brake-pad-installed-in-modern-car-1024x683.jpeg\" alt=\"New brake pad installed in modern car\" class=\"wp-image-14003\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/new-brake-pad-installed-in-modern-car-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/new-brake-pad-installed-in-modern-car-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/new-brake-pad-installed-in-modern-car-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/new-brake-pad-installed-in-modern-car-1536x1024.jpeg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/new-brake-pad-installed-in-modern-car-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/new-brake-pad-installed-in-modern-car-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/new-brake-pad-installed-in-modern-car.jpeg 1546w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\"> Each wheel on your vehicle comes with its own brake and attached hydraulic device. All four brakes respond to the brake pedal. <\/figcaption><\/figure>\n\n\n\n<p>In a drum brake system, a wheel cylinder at each wheel forces a pair of shoes outward against a drum to create friction.<\/p>\n\n\n\n<p>Be it <a href=\"https:\/\/www.carparts.com\/blog\/drum-brakes-vs-disc-brakes-learn-their-difference\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"disc brakes or the older drum brakes\">disc brakes or the older drum brakes<\/a>, brakes work by creating friction to slow the wheels. By making it much harder for the wheels to keep turning, the brakes drastically drop the vehicle&rsquo;s speed.<\/p>\n\n\n\n<p>Check out this video to know more about how car brakes work:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How Car Brakes Work | CarParts.com Parts Explained\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/2PER9knUZpI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">The Science Behind Car Brakes<\/h2>\n\n\n\n<p>A stationary object possesses potential energy, which is the energy stored within an object thanks to gravity and other factors around it. Applying enough force on a non-moving object converts its potential energy into kinetic energy and allows it to move.<\/p>\n\n\n\n<p>In vehicles, the engine provides the power required to turn potential energy into kinetic energy. The stronger the engine&rsquo;s output, the more kinetic energy it imparts to your car, leading to better acceleration and higher speeds.<\/p>\n\n\n\n<p>Once it gets underway, a moving object will continue to move until all its kinetic energy returns to potential energy. Higher speeds impart more energy, so the momentum from going fast carries the object further along for longer periods even after it loses its source of propulsive energy.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car-1024x682.jpg\" alt=\"driver applyig brakes on running car\" class=\"wp-image-77978\" style=\"width:1024px;height:682px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/driver-applyig-brakes-on-running-car.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Brakes reduce kinetic energy by ramping up friction, which is the resistance to motion of one object moving relative to another.<\/figcaption><\/figure>\n\n\n\n<p>Brakes reduce kinetic energy by ramping up friction, which is the resistance to motion of one object moving relative to another. Apply enough friction and you can stop a fast-moving car within a scant distance and a brief period.<\/p>\n\n\n\n<p>By ramping up the friction between them and the wheels, brakes quickly convert kinetic energy into heat. Deprived of the energy it needs to keep running, the car comes to a stop much faster than if allowed to coast until its momentum peters out.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Types of Car Brakes<\/h2>\n\n\n\n<p>There are four common types of brakes systems installed on vehicles&ndash;disc brakes, drum brakes, emergency brakes, and anti-lock brakes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Disc Brakes<\/h3>\n\n\n\n<p>This brake type got its name from its appearance&mdash;they resemble <em>discs<\/em>. Some people also refer to the discs as &ldquo;rotors.&rdquo;<\/p>\n\n\n\n<p>A disc brake pad and rotor assembly contain the following parts:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The eponymous brake disc that rotates along with the wheel<\/li>\n\n\n\n<li>A <a href=\"https:\/\/www.carparts.com\/blog\/the-different-types-of-brake-pads-that-you-should-know-about\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"brake pad\">brake pad<\/a> made from a high-friction material<\/li>\n\n\n\n<li>A brake caliper that presses the pad into the disc to stop the wheel from moving<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"676\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/disc-brake-of-car-for-repair-1024x676.jpeg\" alt=\"Disc brake of car for repair\" class=\"wp-image-14005\" style=\"width:1024px;height:676px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/disc-brake-of-car-for-repair-1024x676.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/disc-brake-of-car-for-repair-300x198.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/disc-brake-of-car-for-repair-768x507.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/disc-brake-of-car-for-repair-150x99.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/disc-brake-of-car-for-repair.jpeg 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\"> Brake discs are sometimes referred to as rotors. <\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">How Disc Brakes Work<\/h4>\n\n\n\n<p>Calipers get their power from the pressurized brake fluid that flows from the <a href=\"https:\/\/www.carparts.com\/blog\/bad-clutch-master-cylinder-symptoms-plus-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"master cylinder\">master cylinder<\/a>. When you step on the brake pedal, hydraulic fluid from the master cylinder rushes into each of the calipers.<\/p>\n\n\n\n<p>The force delivered by the brake fluid lets the calipers pin the brake pads against the brake disc.<\/p>\n\n\n\n<p>Once they come into physical contact with the brake disc, the brake pads&rsquo; surface generates friction. They slow down the rotational speed of the discs and the wheels by converting kinetic energy into heat that radiates from the pad.<\/p>\n\n\n\n<p>Deprived of the kinetic energy they need to keep turning, the wheels will slow down until they stop altogether.<\/p>\n\n\n\n<p>Most modern vehicles use disc brakes to stop safely. Some have disc brakes at all four corners, while others have discs in the front and drums in the rear.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Drum Brakes<\/h3>\n\n\n\n<p>Drum brakes preceded disc brakes. On some vehicles, they continue to serve alongside the newer brake type.<\/p>\n\n\n\n<p>The drum brake assembly comprises the following parts:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Brake drum<\/li>\n\n\n\n<li>Brake shoes with friction linings<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/closeup-of-car-drum-brake-1024x683.jpeg\" alt=\"Closeup of car's drum brake\" class=\"wp-image-14006\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/closeup-of-car-drum-brake-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/closeup-of-car-drum-brake-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/closeup-of-car-drum-brake-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/closeup-of-car-drum-brake-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/closeup-of-car-drum-brake-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/08\/closeup-of-car-drum-brake.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Many classic vehicles rely entirely on drum brakes. Some modern vehicles continue to use drum brakes on their rear wheels to save on production costs. <\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">How Drum Brakes Work<\/h4>\n\n\n\n<p>The brake drum connects with the wheel and rotates along with it. The hollow drum fits over the brake shoes with room to spare.<\/p>\n\n\n\n<p>Stepping on the brake pedal triggers the wheel cylinders to press the brake shoes against the inside surface of the <a href=\"https:\/\/www.carparts.com\/blog\/how-long-do-drum-brakes-last\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"brake drums\">brake drums<\/a>. The shoes&rsquo; lining generates friction that robs the drums of kinetic energy.<\/p>\n\n\n\n<p>Since the brake drums turn alongside the wheels, slowing or stopping them serves to decelerate the wheels.<\/p>\n\n\n\n<p>Many classic vehicles rely entirely on drum brakes. Some modern vehicles still use drum brakes on their rear wheels to save on production costs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The Difference Between Disc Brakes &amp; Drum Brakes<\/h2>\n\n\n\n<p>While functionally the same, disc brakes and drum brakes offer different benefits.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cost<\/h3>\n\n\n\n<p>Many car manufacturers save on production costs by fitting the rear wheels with cheaper yet still-effective drum brakes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Heat Dissipation and Brake Fade<\/h3>\n\n\n\n<p>Engaged brakes produce lots of heat and need to get rid of it fast. If they can&rsquo;t manage their temperature, their performance can become inconsistent, leading to brake fade.<\/p>\n\n\n\n<p>Disc brakes handle heat better than drum brakes. They remain cooler after repeated uses, making their performance more consistent.<\/p>\n\n\n\n<div class=\"rsi-card\">\n  <div class=\"rsi-thumb\">\n    <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/d_noimage.jpg\/b_white\/e_sharpen,e_auto_brightness,e_auto_contrast\/f_auto\/q_auto:eco,dpr_auto\/w_873,h_873,c_pad\/images\/kit-030321-02-78_1\">\n  <\/div>\n  <div class=\"rsi-info\">\n    <span class=\"rsi-title\">Brake Parts Shopping Guide: The Top 10 Brands Today<\/span>\n    <span class=\"rsi-desc\">See which brands carry the best brake disc and pad kits. Weigh pros and cons, check for warranty coverage, and select the kit that works best for you.<\/span>\n    <a href=\"https:\/\/www.carparts.com\/blog\/brake-parts-shopping-guide-the-top-10-brands-today\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Discover Your Options\">Discover Your Options<\/a>\n  <\/div>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">Performance in Wet Conditions<\/h3>\n\n\n\n<p>Brakes depend on friction to stop the car&rsquo;s wheels, and they don&rsquo;t mix well with moisture. They become slippery when wet, which reduces their ability to create friction to stop your car.<\/p>\n\n\n\n<p>The hollow shape of drum brakes makes it easier for moisture to gather and pool inside the drum. In contrast, disc brakes not only shed water easily, but they also get wiped dry by the brake pads, which helps keep them drier and lets them maintain their effectiveness.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Locking Up<\/h3>\n\n\n\n<p>Disc brakes enjoy the advantage of having a simpler and more straightforward design.&nbsp;<\/p>\n\n\n\n<p>This means they lock up less often than drum brakes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Materials<\/h3>\n\n\n\n<p>Brakes can get hotter than 510 degrees Celsius (950 degrees Fahrenheit). That&rsquo;s equivalent to five times the boiling point of water.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/brake-pad-set\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Brake pads\">Brake pads<\/a>&nbsp;and&nbsp;<a href=\"https:\/\/www.carparts.com\/brake-shoe-set\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"brake shoes\">brake shoes<\/a>&nbsp;must withstand these temperatures whenever you step on the pedal. Heat-resistant substances like alloys, ceramics, and composite materials see much use in the manufacture of car brake parts.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Parking Brakes (formerly known as Emergency Brakes)<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes-1024x682.jpg\" alt=\"driver using car parking brakes\" class=\"wp-image-76239\" style=\"width:1024px;height:682px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/driver-using-car-parking-brakes.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">All vehicles must adhere to the Federal Motor Vehicle Safety Standard (FMVSS) 135 which requires them to have a parking brake that can hold a fully loaded vehicle stationary on a slope of 20% up or down.<\/figcaption><\/figure>\n\n\n\n<p>Since 1967, federal regulations have required the use of dual or tandem master cylinders as a safety measure in case one-half of the braking system fails. Today, all vehicles must adhere to the Federal Motor Vehicle Safety Standard (FMVSS) 135 which requires them to have a parking brake that can hold a fully loaded vehicle stationary on a slope of 20% up or down.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How Do Parking Brakes Work<\/h3>\n\n\n\n<p>Parking brakes are applied by depressing a pedal, pulling a floor-mounted lever, or activating a handle from inside a vehicle. When applied, a warning lamp on the dashboard activates to prevent damage to the brake drums or rear discs and pads in case the driver attempts to accelerate while the parking brake is engaged.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Antilock Brake System<\/h2>\n\n\n\n<p>Friction between the tire tread and the road surface is what slows down a vehicle and allows it to stop moving. All four wheels need to maintain contact with the road surface, especially while driving in wet, icy, or snowy conditions. The antilock braking system (ABS) prevents wheels from locking and losing traction while braking, especially on low-friction surfaces.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"763\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/anti-lock-braking-system-in-the-car-1024x763.jpg\" alt=\"anti lock braking system in the car\" class=\"wp-image-76238\" style=\"width:1024px;height:763px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/anti-lock-braking-system-in-the-car-1024x763.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/anti-lock-braking-system-in-the-car-300x224.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/anti-lock-braking-system-in-the-car-768x572.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/anti-lock-braking-system-in-the-car-1536x1144.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/anti-lock-braking-system-in-the-car-150x112.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/anti-lock-braking-system-in-the-car.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The antilock braking system (ABS) prevents wheels from locking and losing traction while braking, especially on low-friction surfaces.<\/figcaption><\/figure>\n\n\n\n<p>Some ABS units will cause the brake pedal to pulse as antilock braking is activated. However, there are systems with an isolator valve that prevents brake pedal pulsations. This may make it hard for the driver to determine when the vehicle is in ABS mode.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How Does the ABS Work<\/h3>\n\n\n\n<p>Speed sensors monitor the rate of deceleration of each wheel to detect possible wheel lockup. If the the <a href=\"https:\/\/www.carparts.com\/blog\/what-are-the-symptoms-of-a-bad-abs-module-plus-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"ABS control module\">ABS control module<\/a> detects that one wheel is rotating slower than the others, it will direct the ABS hydraulic controller to reduce brake fluid pressure to that wheel for a fraction of a second before it reapplies pressure.<\/p>\n\n\n\n<p>Pulsing the brakes on and off allows the vehicle to maintain directional stability and maximum braking force during a sudden stop or while driving on slick surfaces.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Have Faulty Brakes? Get Replacement Parts Online<\/h2>\n\n\n\n<p>Brake failure is a serious problem. Brake components typically show an array of issues before they fail. However, ignoring these signs will increase the likelihood of brake failure. For your safety, you should replace your vehicle&rsquo;s faulty brake components immediately. Good thing CarParts.com is a trusted source for all sorts of brake components including brake disc and pad kits, brake calipers, and brake caliper pistons, among other brake parts.<\/p>\n\n\n\n<p>Here at CarParts.com, our brake components are made with modern manufacturing techniques and the precise specifications of the original part. This ensures that the replacement will fit and function like the original.<\/p>\n\n\n\n<p>Don&rsquo;t ignore your vehicle&rsquo;s faulty brake components. Check out our selection of <a href=\"https:\/\/www.carparts.com\/brake-disc-and-pad-kit\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"brake discs and pad kits\">brake discs and pad kits<\/a>, <a href=\"https:\/\/www.carparts.com\/brake-caliper\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"brake calipers\">brake calipers<\/a>, and <a href=\"https:\/\/www.carparts.com\/brake-caliper-piston\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"brake caliper pistons\">brake caliper pistons<\/a> here at CarParts.com today!<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 7<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Brakes serve to slow down your car and bring it to a stop. But have you ever wondered how your&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/how-do-car-brakes-work\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":14007,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[3749,52],"tags":[337,841,918,882,1174,1044],"ppma_author":[2607],"class_list":{"0":"post-14001","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-braking-system","8":"category-diy","9":"tag-brake-disc-and-pad-kit","10":"tag-brake-caliper","11":"tag-brake-disc","12":"tag-brake-drum","13":"tag-brake-pad-set-2","14":"tag-brake-shoe-set","15":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Do Car Brakes Work? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Have you ever given a thought to how car brakes operate? 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