Polaris Industries is recalling 4,394 GEM electric vehicles manufactured from January 14, 2010, through November 23, 2012, because their parking brakes might fail, allowing the cars to roll away after being parked. The GEM electric vehicles affected by the recall include GEM E2, E2 XLD, E2L, E2S, E4, E4S, ELXD EL E6, E6S and ES models built from Jan. […]