Twice today on route to work, when applying the regen paddle on the steering wheel to brake it started to slow the Volt and then "seemingly" let go as though it was not applied at all requiring me to hit the brake pedal quickly. The Volt was not fully charged when this occurred and my foot was off the accelerator and not on the brake. Kind of scary as this hasn't happened in the past. Any ideas? No warning indicators on the driver's information panel.