2007 GMC Yukon Denali Q&A
2007 GMC Yukon Denali Question: HVAC problem
This could be the HVAC module, I've heard some are being reprogrammed if one side is not functioning properly. This should be covered under your basic warranty if it hasn't expired. - Andy Y
We already instal update from acdelco sps section new instal programming of HVAC module,Body control module, and Engine control module. Still the same problem
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...
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail,...
2004 YUKON XL While both sides are calling for cooling, the drivers side blows cools while the passenger side heats (blasts hot air)
when starting truck engine light came on steady. dissconnected battery for 5 minutes. reconnected and light went out but now can not get any airflow out of center ducts. a/c works fine in rear. a/c...