Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator on Cadillac Escalade

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.

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Average mileage: 113,379 (28,000–200,000)
10 model years affected: 1999, 2000, 2002, 2003, more2004, 2005, 2006, 2007, 2008, 2009
70 people reported this problem
41 people shared problem details
Fan only blows cold air in the rear when heat in on.
when ac on-- get heat on drivers side and cool on passger's side
While driving with the airconditioning on, suddenly the front air ducks blow extremely hot air. Must turn off the vehicle, then restart for the problem to right itself. According to the posts I've been reading here and on other sites it sounds like a faulty blend door actuator also known as air flap actuator.
Driver side heat, passenger side cold AC. Reviewing fix options now.
must be set to 90 to get heat to the front. rear heat works at intervals of seldom to none
with a/c on it will switch to heating on drivers side only i have to stop, turn off and restart. may have to do 1 or 2 times
Blow hot air driver side, but cool air every where else
Heater was coming on in the summer with the air blowing now winter heater will not come on at all.
front & rear a/c blowing warm air clutch cycleing, short cycleing switch,add refrigerant, the only line that feels cold is the liquid line entering the evaporator and that is with the accumulator switch shorted.
Believe problem to be in the lower actuator. During AC season, passenger side upper and lower vents randomly blow extremely hot air - unbearable for the passenger. Drivers side and rear AC works fine when this happens. I have not found a solution yet other than the $1200 the dealer said would cost to fix.
intermitt loss of heat only on pass side.
The heating in the front had to be on 90 to get any heat and if you put it on 89 it gets cold
If your actuator is blowing hot or cold air it is probably not broken...just out of sync. A year and a half of hot air blowing out of the drivers vent from time to time. Cutting off and starting the engine at a traffic light temporarily fixed it. Finally it was happening all the time so I bought a new actuator from Advance Auto for $43.00. I unplugged the old actuator and was waiting till the next day to install the new one. Had to go to store so plugged old one back in and the cold air started blowing and hasn't blown hot air since. By unplugging power to the old actuator must have made the computer reset it. Returned the new actuator for a refund and it's been months now and no actuator failure. If that didn't work you will need to relearn the a/c actuator into position. Try to relearn your actuator by turning your A/C system to the highest blower setting with cold air for 5 minutes, then dial the heat to hot for five minutes. This sometimes resets the actuator when there is actually nothing wrong with it in the first place except that it's out of sync. Try this before you buy. It's a simple fix if you need to change it. Lot's of youtube instructions.
my vents are not blowing air of any sort through the vents. I have the setting at full blast and nothing is coming out.
Air conditioning will not turn off even when car is turned off and key is removed. Not heat at all. Thought it was control module, ordered and replaced but still same problem.
Ocassionally, A/C blows hot on driver's side, cold on passenger and all rear vents. Cycling through the ven positions (dash, foot, combo, defrost...) sometimes cures the problem. Vent baffles or doors can be heard operating. Today, that fix stopped working...
Heat is blowing out back and nothing comes out of the front.
Rear only blows cold air when the rear heat is on
2005 Cadillac Escalade Front A/C Or Heater Is Not Working At All, Rear Is Blowing But The Front Is Not
Passengers side has intermittent issue when A/C on sometimes heat on passenger side only
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