Description: Exc.Remote Engine Start. Remote Control Door Lock Receiver Module. LaCrosse. Cx , cxl, super. With remote start. Grand Prix. Without remote entry. This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Designed to allow the door to lock/unlock at the push of a button This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors