Mechanic working on car brake

What Can Cause Low Brake Fluid?

One of the first thoughts when that little brake warning light goes on is “Rats, is my parking brake on?” followed swiftly by a sinking sensation as you realize that the warning may be because of something much more serious. The brake warning lights generally activate when brake fluid is running low and needs to be changed. But what can cause low brake fluid in the first place? Keep reading to learn some of the most common reasons (and what to do about them).

Having trouble with your brakes? Stay safe on the road and schedule a service appointment online today

Worn Brake Pads

If your brake pads are getting worn out (either because of age or because you like to stomp on the brakes right before the red light every time) that can cause a drop in pressure as the brakes have to press farther to work. You might also notice a loss in responsiveness when this happens.

mechanic inspecting brakes

Leaky Brake Lines, Hoses, Wheel Cylinders or Calipers

While brakes can also be mechanical, pneumatic, or electromagnetic, the most common type in vehicles is hydraulic, which means that the system relies on having enough brake fluid to function. This fluid passes through many different systems (lines, hose, caliper, etc) and any of them can leak. Causes of the leak can range from general wear and tear to hitting something while you are driving. If you have brake fluid showing up under your car while parked, that is probably a sign of a major leak and should be checked on right away.

Read More: Get Oil Change Coupon for Akins Ford near the Mall of Georgia

Rusted Or Corroded Line

While many parts of the brake system can simply weaken, some parts like steel brake lines can just rust. Steel parts of vehicles are usually coated in something to prevent rust, but that can wear out. This is especially true in northern climates where salt is used on the roads to prevent the build-up of snow and ice.

Just for Fun: Check Out the Great Pictures of This Custom Jeep Built at Wild Willies

Loose Bleeder Valves

Bleeder valves are a part of your hydraulic brake system that is designed to release brake fluid, like during service. If you’ve recently been in to have your brakes repaired, but your brake light is still showing up, you may just need to bring the vehicle back in to have the bleeder valve tightened the rest of the way.

Stay safe out there, and be sure to get your brakes checked immediately if you think there may be any problems. Want to learn more about brakes? Check out the funny video below.