2008 JEEP GRAND CHEROKEE OVERLAND 5.7 HEMI STALLED ON FREEWAY. I HAD TO IMMEDIATELY PULL OVER AS HEAVY TRAFFIC AND VEHICLE WOULD NOT RESTART AND I LOST ALL STEERING/BRAKES/ENGINE CONTROL. I ENDED UP HITTING A ROAD CONE (NO NOTABLE DAMAGE) AS I WAS PULLING INTO THE SOMEWHAT SMALL PULLOVER ZONE (WAS IN HIGHWAY CONSTRUCTION). VEHICLE RESTARTED ONLY AFTER BEING PUT IN PARK AND REMOVING AND REINSERTING THE KEY. *TR