Check for sticking calipers.
Your brake fluid is how the brake system converts mechanical force of your foot on the brake pedal, into hydraulic force that applies your brakes. Without fluid, your hydraulic brakes will not function.
When brake fluid leaks the system is compromised and the brakes might not function properly. Look over the entire brake system to see where the leak is coming from to be able to fix the problem.
In the brakes.
Where is the reservoir for the brake fluid
Brake Fluid.
Check the brake fluid reservoir, it may be low on brake fluid indicating it is time to have the brakes inspected.
Open brake fluid reservoir for the brakes - make sure it is full of brake fluid - put lid back on reservoir then pump the brakes then hold the brakes on - have someone open the bleed screw on the brakes and let the air and oil out and close it again quickly and repeat until the air bubbles stop in the brake fluid, also checking to make sure you do not run out of brake fluid before you finish bleeding the brakes.
No but, the brake fluid level will drop as brake pads/linings wear.
1. You need new brakes. 2. The brakes you have are cheap. 3. You may have dirty or old brake fluid. 4. Possible air in the brake line. 5. Weather conditions could be a factor.
Sticking caliber. Flush the brake system and install fresh brake fluid, then bleed the brakes. If that does not help, replace both calibers and brake pads on the axle where the brakes are grabbing.
Siphon it out. Do not drive or pump the brakes. Replace the brake fluid. This will cause the brakes to fail.
In the brake fluid reservoir on the driver side near the firewall. The brakes master cylinder (a round shape component) is against the firewall, and then comes out from it there is a boxy module that has brake fluid. It has a screw-on cap to hold the fluid tight in there. Two small metal pipes come out of this boxy module. That module is where you put the brake fluid (DOT 3) in.