Air blowing through all vents

fishnfly20 · January 23, 2020

I bought a 2019 sierra 1500 and the air blows out of all vents no matter what mode I have it in. When it's cold out my feet seem to stay cold but my upper body is hot. I took it to the dealer and they said it is normal and they all do it. I've heard about this issue with previous model gm trucks, but I couldnt find anything on the new generation trucks. Is anyone else having this issue or is it something specific to my truck?

Thejet07 · January 23, 2020

My 2019 Silverado rst does this. I asked and they said they all do it as well. I find it annoying because my windshield fogs up at times unless I use defogger

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mookdoc6 · January 23, 2020

1 hour ago, fishnfly20 said:

I bought a 2019 sierra 1500 and the air blows out of all vents no matter what mode I have it in. When it's cold out my feet seem to stay cold but my upper body is hot. I took it to the dealer and they said it is normal and they all do it. I've heard about this issue with previous model gm trucks, but I couldnt find anything on the new generation trucks. Is anyone else having this issue or is it something specific to my truck?

Yup, Totally lame as with AC always on too! Anyway you have to turn Fan OFF and put on Recirculate and then your good to go!

fishnfly20 · January 23, 2020

2 hours ago, mookdoc6 said:

Yup, Totally lame as with AC always on too! Anyway you have to turn Fan OFF and put on Recirculate and then your good to

I was hoping it was only a winter issue, because I dont care as much about ac blowing out all the vents. I guess that's an issue too. What do you mean by "turn fan off" turn it on auto?

mookdoc6 · January 23, 2020

1 hour ago, fishnfly20 said:

I was hoping it was only a winter issue, because I dont care as much about ac blowing out all the vents. I guess that's an issue too. What do you mean by "turn fan off" turn it on auto?

No...I had difficult time with it myself and still do..LOL the Screen has to to say FAN OFF and then push in recirculate button ON.

mafd2 · January 25, 2020

On 1/22/2020 at 6:31 PM, fishnfly20 said:

I bought a 2019 sierra 1500 and the air blows out of all vents no matter what mode I have it in. When it's cold out my feet seem to stay cold but my upper body is hot. I took it to the dealer and they said it is normal and they all do it. I've heard about this issue with previous model gm trucks, but I couldnt find anything on the new generation trucks. Is anyone else having this issue or is it something specific to my truck?

Well I hate to disagree with your service advisor or whomever told you this but it's not "normal" and they all don't do it. My '19 RST, our '19 Fire Dept. Custom service truck and a friends LT doesn't do it. If the defrost only is selected air doesn't blow out the vents. When the defrost mode is on and I select the vent mode, you can hear the flap inside the dash open then air starts flowing out the vents. What gets me with these service dept.'s is when people bring a vehicle in for a problem or concern they seem to reply "they all do that" or "it's normal". When they tell you that, tell him/her ok lets go try a handful of trucks on the lot and lets see what they do.

redwngr · January 27, 2020

On 1/22/2020 at 9:06 PM, mookdoc6 said:

Yup, Totally lame as with AC always on too! Anyway you have to turn Fan OFF and put on Recirculate and then your good to go!

The AC light doesn't mean the compressor is engaged.

Just means that it is available.

Humidity control is much more effective when the AC is used.

mookdoc6 · January 27, 2020

Yes, I get that my average humidity is 13-15% so I don't need "Humidity Control" and please explain how this "Humidity Control" is utilized without the AC Compressor running?

fishnfly20 · February 1, 2020

A quick update, the dealership mechanic put in a inquiry to GM and he said there was no fix for this issue. He said he would call me when they figure out a fix, which I expect will be never. I used the vents for the first time today and there is barely any air coming out of them, it doesnt seem right to me.

mafd2 · February 1, 2020

Nope not right. On vent mode air should be blowing hard. Something's stuck closed or not opening. Did you try using the air settings from the infotainment screen intead of the console? Hope it gets figured out. Try another dealer.

Impalacurt · July 5, 2024

Yep, new 2024 does it also, was told by service the same thing”” “they all do it” except they forgot one thing……they have a lot full of other new trucks and NO they all don’t do it.