Yesterday, as I was driving (more like inching forward) on the I-278 in heavy bumper to bumper traffic, suddenly I heard a sound, then as I braked to a stop, the car began to roll slowly backwards!
Normally, when the car stops, I can feel the inertia gently push the car backwards, and it catches on the brake and stops completely. This time there was no catch, and the car slowly rolled backwards. I pressed on the brake as hard as I could and it stopped before hitting the car behind me.
It happened like three more times before I reached my destination. It did not happen everytime.
When I parked I noticed a piece of plastic and wire by my feet. It seems it had fallen off (the sound I heard). See attachment.
I showed to my friends. No one knew what it is. I then drove to the dealership, which wouldn’t see me because I need an appointment on a Sunday… So I drove all the way home and weirdly enough, did not again encounter the backward problem.
I will not drive again until the weekend and will take it to my local dealership first thing on Saturday. Just wondering if anyone has an idea what this could be.