Cadillac STS

On certain vehicles, an electrical terminal on the fuel pump module may overheat and melt, potentially allowing fuel to leak and/or affecting fuel system pressure.  Fuel leakage, in the presence of an ignition source, could result in a fire. Low fuel pressure as a result of the leak could also affect engine performance which could result in reduced engine power and/or stalling. These issues could increase the risk of injury and/or property damage.  Correction:  Dealers will replace the fuel module and fuel tank jumper harness.

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).