2024 silverado defrost

[15 Z71]

Is it just me or is the defrost horrible on these news trucks? It works fine above the wipers but does hardly anything down by where wipers sit on windshield. My wipers are really hard to keep from freezing on windshield.  Never had this problem with my 15. It actually blew hot air by wipers.  Anyone else noticed this problem? I let truck run for 15 20 minutes and wipers still frozen. 

[kickass audio]

Mine works great except for removing humidity where the front facing camera sits above the mirror. When it's warm and gets very cool overnight I've had a haze on the glass that is on the inside of the windshield but only in the area where the forward collision avoidance camera is mounted and it will make the annoying as hell error of forward collision unavailable come on and off while it's removing the moisture.

 

I do have my auto fan speed limit set to max in the radio's settings so you can try that. I 99.9% of the time keep my vents on auto at 72 degrees and notice that the air blowing out of the defroster vents is stronger than the floor vents and when it's nice and warm inside the truck, it will change my vents to put a little bit of air out of the face vents and still keep airflow out of the defrost vents on the dash and to the side windows.

 

I can compare the system to my old 2014 and it's the same setup in my opinion except the 2023 has taller defrost vents that point to the front door windows than my 2014 had. If I wear my jacket and i'm very hot inside it or am sweating, it will make my windows steam up a bit but it only gets half of my front door windows to steam up and never affects me seeing out the mirrors and the windshield is nice and clear.

[15 Z71]

12 hours ago, kickass audio said:

Mine works great except for removing humidity where the front facing camera sits above the mirror. When it's warm and gets very cool overnight I've had a haze on the glass that is on the inside of the windshield but only in the area where the forward collision avoidance camera is mounted and it will make the annoying as hell error of forward collision unavailable come on and off while it's removing the moisture.

 

I do have my auto fan speed limit set to max in the radio's settings so you can try that. I 99.9% of the time keep my vents on auto at 72 degrees and notice that the air blowing out of the defroster vents is stronger than the floor vents and when it's nice and warm inside the truck, it will change my vents to put a little bit of air out of the face vents and still keep airflow out of the defrost vents on the dash and to the side windows.

 

I can compare the system to my old 2014 and it's the same setup in my opinion except the 2023 has taller defrost vents that point to the front door windows than my 2014 had. If I wear my jacket and i'm very hot inside it or am sweating, it will make my windows steam up a bit but it only gets half of my front door windows to steam up and never affects me seeing out the mirrors and the windshield is nice and clear.

I don't know,it defrost everything good above wipers.  Like the vent needs to be lower or blow on wipers not 3 inches above then. 

[KinkyDuramax]

The only issue I had with the defrost was my driver side mirror wasn't defrosting as good as my rear and passenger side. The warranty replaced the driver side one, and fixed that issue. As for my windshield it's been working great for defrosting on the wipers, I do wish it was better, or maybe have some sort of gimmick to heat the windshield/wipers like some other big name trucks do. 

[newdude]

No.  Defrost works fine.  

 

The wipers freezing is because of how low they mount them in the cowl area now for "aerodynamics".  Been doing this since the 2014 generation trucks. 

 

The older ones so 07-13, 99-07 (and older even) the wipers were not buried in the cowl, rather were mounted in the defrost area of the windshield.  

 

So the whole wipers icing is an unfortunate flaw due to vehicle design changes.  Anything to eek out .2 mpg.  

Edited January 9, 2025 by newdude

[15 Z71]

1 hour ago, newdude said:

No.  Defrost works fine.  

 

The wipers freezing is because of how low they mount them in the cowl area now for "aerodynamics".  Been doing this since the 2014 generation trucks. 

 

The older ones so 07-13, 99-07 (and older even) the wipers were not buried in the cowl, rather were mounted in the defrost area of the windshield.  

 

So the whole wipers icing is an unfortunate flaw due to vehicle design changes.  Anything to eek out .2 mpg.  

Yes that exactly it. Thanks!

[Bikerjon]

On 1/4/2025 at 9:42 PM, 15 Z71 said:

Is it just me or is the defrost horrible on these news trucks? It works fine above the wipers but does hardly anything down by where wipers sit on windshield. My wipers are really hard to keep from freezing on windshield.  Never had this problem with my 15. It actually blew hot air by wipers.  Anyone else noticed this problem? I let truck run for 15 20 minutes and wipers still frozen. 

I just noticed the same thing. Guess we will have to break them loose by hand. Just like the olden days.

[Silverado4x4]

For people seeing humidity inside the cab and windows make sure the AC button is on and adjust the temp where you want it this removes humidity inside the cab just like your house AC does. Alot of people see the AC button light is on and turn it off and that where the problem is. It's even the owners manual.