silverado 2014 Silverado blowing hot air out of passenger side and cold on driver side?

amber087333 · July 28, 2020

On 7/16/2020 at 10:51 AM, AllTerrain74 said:

I am having this same issue on my 2014 All Terrain. I will try this procedure when I get home to see if it fixes the issue. At first I thought that I needed a re-charge, but confirmed the other day that the two passenger vents are blowing cold while the driver side remains hot.

It seems like this really became an issue after I changed the battery last fall, but really did not notice until the weather started heating up.

One question: Should the HVAC be turned completely off before doing this procedure, or just leave it where it was?

Did it fix?

Hardy · August 6, 2021

On 2/23/2018 at 8:52 PM, Brianx220 said:

Update: So I took it to the dealer again and that was a waste of time because apparently nothing is wrong with it. So I took matters in my own hands and started pulling the HVAC and the Dual Climate control fuses and took the battery off for approximately 2 minuets and put it back together and turned it over to see what happens. Not sure what fixed it weather pulling the fuses or pulling the positive terminal but now everything works properly. Just for anyone who has the same issue this is a quick fix the dealers will charge you for. Thank god for the internet lol.

Signed up to confirm this worked for me. Turned AC completely off and vehicle off. Pulled fuses 35, 55, and 56. Pulled positive terminal for about 2 minutes and just reconnected everything in same sequence. Turned vehicle on and let sit a few minutes. Fixed my driver side blowing ambient temperature. Thanks for this

suess13 · September 28, 2021

So I did the battery and fuse procedure and it seemed to work for a few days, but now I have the same issue again. I've

been told by multiple people and my own research that one of the blend door servo's needs to be replaced.

There are 3 blend door servo's Part's 16,17,18 on this diagram, Does anyone know which one controls the driver and passender dual zone climate? Youtube video seems to point to Part number 18 right near the glove compartment. I just wanted to do a little research before I start replacing parts.