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: 111,993 (37,000–217,089)
11 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002, 2003, 2004
61 people reported this problem
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Viewing 1 - 20 of 32 problem details
1995 Cadillac Seville SLS 157,000 mi,
Air will not blow from the front vents . but it will blow air from the rear vents.
2000 Cadillac Seville SLS 120,000 mi,
Right side cool, left side hot on AC. Actuator door not working. If this so common why isn't it a recall?
2000 Cadillac Seville SLS 87,000 mi,
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.
2003 Cadillac Seville SLS 108,000 mi,
Airflow stays to face, and will not switch to defrost
2004 Cadillac Seville SLS 174,000 mi,
heat blows out back seat vents but VERY little in the front
2000 Cadillac Seville SLS 43,000 mi,
Passenger side blows heat only, even when AC is on.
hot drivers side cool pass. side
1996 Cadillac Seville SLS 191,500 mi,
Air will not blow from front vent but it blow from the rear vent
1999 Cadillac Seville SLS 48,500 mi,
A/C vents on driver's side of dash have no air flow. OK on passenger side
1998 Cadillac Seville SLS 154,000 mi,
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.
First my driver side started blowing hot air then the rest of the car is blowing hot air.
2004 Cadillac Seville SLS 217,089 mi,
Ac works sometimes. Mostly not working.
2002 Cadillac Seville SLS 51,450 mi,
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.
1997 Cadillac Seville SLS 150,000 mi,
I have Heater on left, ac on right when I turn on the ac
2002 Cadillac Seville SLS 125,000 mi,
cold air comes out of back vents but not front
1998 Cadillac Seville SLS 98,000 mi,
Driver's side blows hot air while on AC. Passenger side if fine.
2001 Cadillac Seville SLS 130,000 mi,
Still waiting for AC sub contractor to fix problem. The left front vents are blowing cold air when temperature control turned to heat mode. The right side is blowing blows hot , both sides blow cold air when Air Conditioner is turned on.
1996 Cadillac Seville SLS 108,000 mi,
ac blows cold on driver and hot on passenger
1995 Cadillac Seville SLS 76,000 mi,
Blower motor will not shut off when I turn the car off.
1996 Cadillac Seville SLS 52,750 mi,
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