The official notice
Defect
General Motors (GM) is recalling certain model year 2013 Buick LaCrosse vehicles, manufactured between April 25, 2012, through March 6, 2013, and model year 2013 Cadillac SRX vehicles, manufactured between May 29, 2012, through February 18, 2013 for failing to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect." A software problem may cause the transmission to inadvertently shift to Sport mode removing any transmission-related engine braking effect.
Safety Risk
If engine braking is unexpectedly removed, it may increase the risk of a vehicle crash.
Remedy
GM will notify owners, and dealers will reprogram the transmission control module free of charge. The recall began on April 3, 2013. Cadillac owners may call 1-866-982-2339. Buick owners may call 1-866-694-6546.