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.
Car Problem Reports
Cadillac Seville SLS Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail
Cadillac Seville SLS Problem
Average Mileage: 116,614 mi (37,000 mi - 215,315 mi)
Visitor, 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?
Visitor, 1995 Cadillac Seville SLS, 157,000 mi
Air will not blow from the front vents . but it will blow air from the rear vents.
Visitor, 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.
Visitor, 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.
First my driver side started blowing hot air then the rest of the car is blowing hot air.
Visitor, 2001 Cadillac Seville SLS, 68,523 mi
Blows hot on the drivers side and cool on the passenger side
Visitor, 2003 Cadillac Seville SLS, 108,000 mi
Airflow stays to face, and will not switch to defrost
Visitor, 1995 Cadillac Seville SLS, 98,000 mi
CHANGED OUT AC PROGRAMER WORKED FOR A WHILE THEN FAILED AGAIN,NOW I USE DEFROSTERS FOR HEAT AND COLD.
TO MUCH TROUBLE TO REPLACE THE PARTS IN THE CENTER CONSOLE
Visitor, 1999 Cadillac Seville SLS, 140,000 mi
air flows through middle vents only
when the heat is on ac comes out driver side and cold on heat on passenger side