Vehicle in motion in left hand lane, on 5 lane main road during rush hour, traffic going approx. 35 mph. as i was driving the vehicle stalled, engine light came on and a warning message said the vehicle was "slowing down" (it stalled completely). i was unable to drift into the right lane and forced to abandon my car into the center lane - used for merging from other lanes of traffic. police responded but no report was filed. officer suggested i leave the vehicle for my own safety & when tow truck arrived to request the auto be towed to a safe spot for removal of personal items. this situation was not only dangerous to myself but others. a crash could have been the result. according to dealer, no recall on this issue. did have a transmission problem. less than 10,000 miles on car approx 18 mos old. dealer hopes gm fix will work, but i am now nervous about driving the vehicle.