What you are experiencing is not exactly a vibration, but what is referred to as pulsating sensation in your car’s brakes. It can be felt throughout the car usually, in brake pedal and steering wheel “shaking” as you come to a stop. Usually, that’s a sign of bad or warped brake rotors. It’s usually always felt in the pedal when you apply the brake, and if it’s also felt in the steering wheel, it’s usually the front brakes. If it’s felt in other areas like the seat, it’s probably the rear brakes.
Problems with brake rotors could also mean there are problems with other parts associated with the brakes such as brake calipers. “Hot spots” on the rotor are created by friction over time, and can be caused by sticking brake caliper sliders or sticking brake pads, and sometimes the calipers can become frozen, causing them to not work at all.
Over time, dust and fine particles build up and creating grooves in the rotors, creating hot spots. Moisture can also cause brake issues. Even if your car isn’t a “daily driver” during periods of non-use of your car moisture can build up on the rotors causing “pitting” and cause the rotors to warp. Once warped, the rotor itself cannot be repaired and they should be replaced
Other causes of pulsating brakes can include collapsed or torn brake line hoses, which affects the flow of the brake fluid. This needs to be addressed immediately as it is major safety issue for you when driving.
We always recommend replace brake rotors and pads at the same time. They are wear items, and the brake pads need a clean smooth surface to make proper contact with the rotors.
Regular maintenance and inspection can help avoid major issues with your brakes.