have you checked your brake fluid??
warped rotors
Hot spots are caused by over heating the rotors Causes: "riding" the brakes, faulty brake components, general abuse
Rotors are out of round,need to have them turned.
Probably scoured rotors.
Warped rotors. They need to be removed, turned or replaced.
Do you have anti lock brakes that might be it if not your rotors maybe warped
worn pads change your brake pads and get your rotors machined while your at it
warped rotors , bad brakes,tie rods, tiresbad ,
because the alignment is off Warped or out of round brake rotors/drums.
Normally this is caused by a warped rotor. Have your brakes inspected and rotors turned or replaced.
Have the front rotors turned on a lathe at a dealership. check brakes and rotors
Warped rotors. Driving using the left foot to brake causes the rotors to heat up. Quenching the hot rotors by driving thru water will cause them to warp. The warped rotors cause the pedal to pulsate.