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.Google+
Car Problem Reports
Cadillac Escalade Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail
Cadillac Escalade Problem
Average Mileage: 46,833 mi (28,000 mi - 70,000 mi)
Visitor, 2007 Cadillac Escalade, 42,500 mi
intermitt loss of heat only on pass side.
Visitor, 2007 Cadillac Escalade
HVAC door actuators have failed
only blows cold air when heater is on.
Visitor, 2007 Cadillac Escalade, 28,000 mi
Cold air blows when heat is on and heat blows when cold air is on. Stops blowing from all dash vents and only blows from feet and defrost vents. Has been repaired 3 times.