The brake pedal has nothing to do with it. If air is in the system then bleed the brakes.
No, the regular brake system is a hydraulic system that is actuated when the driver depresses the brake pedal. The emergency brake is a direct mechanical system that is manually actuated when the driver pulls the hand lever or depresses the emergency brake pedal, which is separate from the brake pedal.
most likely it is air in system
brake switch located on the top of the brake pedal
Hardness in the brake pedal can because by low brake fluid. Air in the brake lines can also cause the pedal to push hard.
Could be that the rotors are "out of round" and pulsate Could be a malfunction in the ABS system
Check around brake pedal for something rubbing. If OK, I'd look into the master cylinder.
Check the switch adjustment on the brake pedal arm.
It seems like there might be air in your brake system. You should try bleeding your brakes and filling it with fresh brake fluid.
air in the hydraulic brake system
Spongy brake pedal that can be pumped up to more solid pedal Brake fluid system has been opened for repair or part replacement Spongy brake pedal that can be pumped up to more solid pedal Brake fluid system has been opened for repair or part replacement
out of brake fluid?
A hard brake pedal can be caused by several different factors. It can be as simple as the brake pedal getting caught on something to the power brake booster being bad. You could also have a brake pad or shoe that is sticking, causing the brake fluid to boil. When brake fluid boils, it expands and can cause the hard brake pedal that you feel. A brake pedal that is hard to press can also be caused by a build-up of water in the brake line. The water in the brake line lowers the boiling point of the brake fluid. A hard brake pedal can also be the result of a restriction in the brake line, such as a bent brake line or foreign material in the brake fluid. The most common cause of a hard brake pedal is the sticking brake pad or shoe, causing the brake fluid to boil. Tracking down what is causing the hard brake pedal can be frustrating, to say the least. Take the vehicle for a drive and when you come back, feel your brake lines near the wheels. Caution: The line may be very hot! If one is extremely hot, you may have just found the culprit causing the hard brake pedal.