GENERAL MOTORS issued a recall on multiple vehicle models

On certain vehicles, the drive axle differential seal may leak (note that all-wheel drive vehicles have two seals). Reduced lubrication may cause the differential to become noisier. Continued use may cause damage to bearings and other differential components. Three conditions could occur: 1). When the vehicle is stopped and shifted to reverse, the differential may jam and prevent vehicle movement. 2). the damage can cause drag that will feel like the parking brake is applied; or 3) the differential could jam and lock the drive wheels while the vehicle is underway. Should the latter occur, it could result in a loss of vehicle control and a crash, causing injury or death. Correction: Dealers will replace the drive axle differential seal(s).