Keeping your vehicle properly maintained is important. Part of this includes knowing what the warning lights mean. When you first start your vehicle, all the lights should come on as part of a bulb check that happens. These lights then go out after a few seconds. If the light does not go out, then there may be an issue. The emergency brake may be on, and to resolve it you release the brake. There may also be the possibility that you have lost brake pressure in half of the brake system.
If the light is on and the emergency brake is released, try to pull over to a stop at a safe and convenient time. If the brake system has failed completely, you will have to use the emergency brake for braking. If the light still remains illuminated, it may mean the pressure on one side of the brake system is lower than on the other. There could be a leak in one part of the brake system, which impairs the ability for it to hold pressure. The hydraulic fluid could also be low if the light remains on. Either way, the vehicle should be inspected with the brake system before you drive it again.
The primary function of the brake warning light is to indicate that the parking brake is applied. Every time the parking brake is used, the brake warning light will come on. This serves as a reminder to disengage it when the vehicle is in motion. If you fail to disengage the brake, it could result in an issue that causes early deterioration of the brake pads and linings that are connected to the brakes. Another reason why the light would illuminate is an indication of the level of brake fluid that is present in the braking system. The brake warning light will come on in the instance of an empty or low brake fluid level in the master cylinder. If this happens, it should be checked once the warning light is illuminated. Bring the vehicle in and we can inspect the brake system of your vehicle.