[header] How to react if your car's brake light comes on [title] Check the parking brake (also called an emergency brake) and attempt to release it. [step] The warning light will stay on continuously if this device is engaged. [title] Pull over at a safe, level place if the parking brake is not the culprit. 
[step] Your brakes may be low on brake fluid or hydraulic pressure. [title] Turn off the engine and consult your owner's manual for the location of the master brake cylinder and the type of brake fluid your vehicle needs.