Cadillac CTS

Issue: 
On certain vehicles, the roll pins in the rear axle differential could fatigue and break over time. This could cause the rear wheels to lock up.  

Safety Risk: 
If this occurs while the vehicle is being driven, it could increase the risk of a crash. 

Corrective Actions:
General Motors will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the rear axle differential. It will be repaired or replaced as necessary.

On certain vehicles, originally sold, or currently registered in areas of heavy road salt usage during winter months (Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland & Labrador), the front brake hose fitting at the caliper may corrode.  If the fitting corrodes significantly, the internal brake hose-tube interface may develop a leak or in some cases break, causing a sudden increase in braking distances which may lead to a crash causing injury and/or property damage.  Correction: Dealers will replace both front brake hose assemblies.  Note: This recall is an expansion of recall 2010-080.

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).

Certain vehicles fail to conform with CMVSS 118 - Power-operated Roof Panels.  The subject vehicles may exhibit a condition where the sunroof can be closed after the ignition is turned off and the doors are opened.  Occupants could receive personal injury as a result of improper sunroof operation.  Correction: Dealers will install a wire harness.