Vehicle recall defect – General Motors Llc (Gm) Is Recalling Certain Model Year 2013-2014 Buick Encore All-Wheel-Drive Vehicles Manufactured August 23, 2012, To September 9, 2013; Verano Vehicles Manufactured August 8, 2012, To June 20, 2013; Chevrolet Cruze Vehicles Manufactured August 7, 2012, To August 16, 2013, And 2012-2014 Chevrolet Sonic Vehicles Manufactured May 10, 2011, To August 16, 2012 Equipped With A Calix Oil Pan/Block Heater. In Cold Temperatures, The Insulation On The Engine Block Heater Cord Can Become Damaged, Allowing The Wires To Be Exposed.