The contact owns a 2011 Buick Lacrosse. While driving at various speeds, the check engine light illuminated on the instrument panel. The vehicle was taken to the dealer, but the failure could not be diagnosed. The contact stated that the error codes were removed from the vehicle; however, the failure recurred. The vehicle was taken to dealer where it was diagnosed that the catalytic converter failed and needed to be replaced. The vehicle was repaired. The contact also stated that the battery of the vehicle had to be replaced on several occasions, but the dealer could not diagnose why the batteries were failing. While driving to have routine maintenance performed on the vehicle, the vehicle stalled without warning. The contact stated that the accelerator pedal was depressed, but the vehicle failed to move. The vehicle was towed to the dealer where it was diagnosed that the transmission failed and needed to be repaired. The failure recurred. The manufacturer was made aware of the failures. The failure mileage was unknown.

- St. Louis, MO, USA