We did NOT get the accident avoidance (automatic braking) package when we bought our Volt. However, today, driving home from work, the car started "braking" every time I lifted my foot off the accelerator. I'm used to "coasting" frequently, especially in traffic (gotta get that 100% efficiency...

Hello: This is a great video explaining "Low Speed Automatic Braking". It takes the query out of how it works! Big Moe https://www.youtube.com/watch?v=yjUN9ilYWM0