Requires AWD model. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner's Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.  Available on all trims and standard on RS and Premier including 3.6L V6 engine.  Vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay, Siri, iPhone and iTunes are trademarks for Apple Inc, registered in the U.S. and other countries.  Service varies with conditions and location. Requires active service plan and paid AT&T Data plan. See onstar.com for details and limitations.  MSRP excludes tax, title, license, dealer fees and optional equipment. See dealer for details.