Special Coverage. On certain 2010-2012 model year and 2016-2017 model year Chevrolet Equinox and GMC Terrain vehicles, the ball joints in the front windshield wiper modules of these vehicles may experience high corrosion and wear that could result in the separation of one or more ball joints from their sockets during wiper operation. If a ball joint were to separate, one or both of the windshield wipers could become inoperative. Dealers are to inspect the front wiper assembly and replace the wiper linkages or module as necessary. The repairs will be made at no charge to the customer.