At the end of a downhill cloverleaf coming coming on and off a highway, the car slowed to a crawl but would not stop. It was going slowly as if "creeping" like when in B mode but was not in B mode. The brakes would not stop it. I was able to shift gears from Drive to N to P but no response, car continued to creep forward until it gently bumped into the back of an 18 wheeler. There was no collision alarm at the time. I turned the car on and off, and powering down seemed to re set the issue, but the collision alarm went off like 10 minutes later when there was nothing to set it off (seemed like it was just delayed). No error code came up, nothing. I submitted my claim to Volvo, esp since there are similar recalls so I thought it was a known thing, but apparently not reported on my exact make and model (there were not very many made). I did not know there was damage to my vehicle, and the truck driver and myself did not even get out, he didn't feel me, and I assumed the bumper just bumped him so no police report. This was an intermittant failure and after I re booted the vehicle I slowly drove home after brakes seemed to be working after power on/off. I did not know that it was my HOOD that bumped the truck. I did not know there was damage until I got home. If this car's make and model were NOT included in the recall, they should be. TERRIFYING. And volvo did not acknowledge or reassure. requested documentation on what they inspected, and did not receive.
NHTSA ODI 11726185