Cadillac
Seville SLS
59

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

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 113,069 (37,000–217,089)
11 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002, 2003, 2004
59 people reported this problem
Comments
Viewing 1 - 20 of 30 comments
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.
Airflow stays to face, and will not switch to defrost
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.
hot drivers side cool pass. side
Air will not blow from front vent but it blow from the rear vent
cold air comes out of back vents but not front
Ac works sometimes. Mostly not working.
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.
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
Blower motor will not shut off when I turn the car off.
Driver's side blows hot air while on AC. Passenger side if fine.
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.
ac blows cold on driver and hot on passenger
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