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

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

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Average mileage: 113,295 (37,000–217,089)
11 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002, 2003, 2004
55 people reported this problem
27 people shared problem details
Right side cool, left side hot on AC. Actuator door not working. If this so common why isn't it a recall?
Air will not blow from the front vents . but it will blow air from the rear vents.
Hot air blowing out from vents..all 4 front. Took to a mechanic he charged system. Still blowing hot. Said there was a leak in line behind dash. Got it back. 2 passenger vents cold, drivers side still hot. They said they can't figure out what's wrong. Taking it to Cadillac. I'm sure it's the Actuators as most state.
heat blows out back seat vents but VERY little in the front
Passenger side blows heat only, even when AC is on.
Airflow stays to face, and will not switch to defrost
A/C vents on driver's side of dash have no air flow. OK on passenger side
not fixed yet...blows hot air driver side, now, no air at all from ac dash vents. Recharged, blew cold for 1 hour, then back to the same. Time to take to a reputable shop.
Ac works sometimes. Mostly not working.
First my driver side started blowing hot air then the rest of the car is blowing hot air.
Happens mostly with windshield defroster. Seems no air (hot and cold alike) will blow out of the dash vents. Also seems like it happens to the bottom floor heater vents.
I have Heater on left, ac on right when I turn on the ac
hot drivers side cool pass. side
Air will not blow from front vent but it blow from the rear vent
Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator on Cadillac Seville SLS
Blower motor will not shut off when I turn the car off.
cold air comes out of back vents but not front
Driver's side blows hot air while on AC. Passenger side if fine.
Right side blows heat all the time, even with AC on. Left side blows cool almost all the time but will eventually heat up. Not fixed
ac blowes hot air on drivers side and cold air on passenger side
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