Fiat Chrysler is recalling more than 500,000 Dodge Chargers world wide because they can slip off a jack when the tires are being changed. The recall covers chargers from the 2011 to 2016 model years and includes almost 440,000 cars in the United States. Fiat Chrysler will provide wheel chocks free of charge to keep the cars stable during jacking. Customers will be notified when they can get the chocks.