For Immediate Release: Wednesday, June 17, 2015 OnStar Offers Hurricane Preparation Checklist DETROIT – OnStar-equipped Chevrolet, Buick, GMC and Cadillac vehicles offer Crisis Assist services to customers, regardless of the plan to which they subscribe, in the event of an extreme weather emergency. Anyone living near or traveling to a hurricane-prone area should be prepared. OnStar has developed a Hurricane Preparation Checklist to help subscribers plan ahead and say safe. OnStar, LLC (OnStar) is a wholly owned subsidiary of GM Holdings LLC (“GM”). Along with its affiliate Shanghai OnStar Telematics Co. Ltd (a joint venture involving OnStar, Shanghai General Motors Co., Ltd (SGM) and Shanghai Automotive Industry Corporation (SAIC)), OnStar serves 7 million subscribers in North America and China. OnStar is a provider of Emergency, Security, Navigation, Diagnostic and Connectivity services. OnStar with 4G LTE is now available on more than 30 2015 GM models in the U.S. and Canada. ### CONTACT: Deana Alicea OnStar/GCCX Communications 313-618-7357 deana.alicea@gm.com