Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator on Chevrolet Suburban 1500

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: 133,642 (36,000–265,000)
11 model years affected: 1996, 2000, 2001, 2002, more2003, 2004, 2005, 2006, 2007, 2008, 2009
74 people reported this problem
36 people shared problem details
Actuator door quit working and would only blow hot air on driver side and cool air on passagner side when in ac mode.
25 people like thisFlag inappropiate
no heat from the front, but rear heat works great.
20 people like thisFlag inappropiate
Drivers side a/c switches to heat, while passenger side blows cold. Replaced drivers side door actuator, did not fix problem. Turning the a/c off then shutting off car and restarting will reset all doors and actuators, fixing the problem temporairly.
11 people like thisFlag inappropiate
had ac on and driver side started blowing extremely hot air
5 people like thisFlag inappropiate
A/C and heat not putting out right temperatures, actuator making sounds. Replaced acctuator
4 people like thisFlag inappropiate
is stuck on heat or cold seems to change when it wants to but not by the control assembly.
3 people like thisFlag inappropiate
Cooling only works on upper setting. The heater will only work when the car RPM are increased and will not heat the back vents at all. There is a continuing clicking sound coming from the dashboard.
3 people like thisFlag inappropiate
front a/c blows hot rear a/c blows cold
2 people like thisFlag inappropiate
Driver side Air cond turns to a high heat ---passenger side is fine --this is not a very good condition to have going across the Bonneville Salt Flats in 95 degree weather. I have had 10 suburbans and this one takes the cake -- I have had more problems with this one than all the others combine---the one that makes me most upset is the speedometer --with a $600.00 price take to repair plus removing the whole consul for a week or so. I wish the engineer that thought this one up had it stuff where the sun don't shine along with there fuel pump in the gas tank.
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actuator reprogrammed and relaced left temp. valve.
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Heat coming out of drivers side and cool from left side
1 person likes thisFlag inappropiate
goes from cold to hot the door flips I replaced the door moter but it still does it
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replaced door actuator
1 person likes thisFlag inappropiate
will work in back but not the front.The front will sometimes work when you are moving
drivers side hot air delivered when AC on.
Drivers side randomly switches to heat . Can be reset by shutting it off and restarting.
When driving in summer with air conditioning on, suddenly the driver's side switches to full HEAT. Stop the car and restart and the problem usually goes away.
Occasionally hot air would start blowing on driver's side, but nowhere else. Stopping and restarting engine would fix it. This happened about twice to four times a month, until the alternator went out, and now it does it full time. This is the first day and after doing some research tonight I plan to disconnect the battery tomorrow to reset the door blend actuator and see what happens. But I haven't seen anyone else mention an alternator replacement being the trigger for this, and I want to educate myself before a mechanic potentially decides I need a new compressor.
No heat but defroster works fine.
I have this issue, not fixed yet.
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