I have a 08 Yukon SLE that is pulsating (brake petal) when stopping at slow speeds. It will do it moving forward or when turning. My rotors have been recently turned, my brake pads are good and my ABS light does not come on. Sometimes, it will not do it if it is a sudden or quick stop. Sometimes, even after I stop braking but am at a slow roll to stop, it will vibrate and has a slight shake. The steering wheel does not shake, vibrate or pull in any direction. I am at a loss and need some guidance on what this could potentially be.

Thanks in advance