The inside and outside door handles are prone to breaking.
2009 Cadillac Escalade Problem Reports
Most Reported 2009 Cadillac Escalade Problem Reports
The power door lock actuators may become slow to operate or stop working completely and require replacement.
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The alternator may fail causing the battery to go dead, or an abnormal noise may develop. The dash warning light may or may not illuminate. A failed alternator will require replacement.