One problem related to transmission not engage has been reported for the 2011 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Impala based on all problems reported for the 2011 Impala.
Transmission disengaged while driving. Had to coast to a safe place on the side of the road. Would not re-engage from park, neutral, or any other gear. Had to shut the car off and let it sit. Transmission repair shop said the transmission is shot. No warning - no check engine light, nothing.