[Killroy]

So I discovered an interesting thing today. Sitting at a light heater on things nice and toasty then the wimd blows. I get a blast of cold air from under my seat. I reached under there and it was as cold as outside under there! At the next light reached under the passenger seat same thing! There are two compartments under the seats where the cables run for the power and vented seats but i wasnt expecting it to be like that! It like theres no insulation under there and the cold radiates up through the the seat and no wonder my legs are cold!

Anyone else notice this??

 

[Casper]

Yes I have.... Left hand side between seat and door very cold. Right hand not so much but noticeable. I can assume the passenger side is the same. It has been very cold here. Definitely a design flaw.

 

[MDBones]

Hmmm... I haven't noticed that. I'll have to check. If I remember correctly, isn't the battery in a compartment under or just behind the passenger seat?

We've had 36 days of sub-zero weather so far this winter. All I can say is the heating system in this Jeep is a helluva lot better than the one in my old '02. I have no complaints on it at all.

 

[therobertbrooks]

When it gets cold here in Tampa, FL...

Just kidding, it doesn't really get that cold.

 

[MDBones]

I checked this going in to work this morning. Air temp was -23F. I can feel a little cold radiating off the bottom of the door and in a couple of spots under the seats. Not a blast as you described or even air movement but more like the kind of cold seepage you'd get around a window.

Considering what it was like outside I didn't think this was abnormal. The heater was working fine and I was nice and warm.

I don't know if it makes a difference but I have my rear heat vents at the back of the console turned off. It helps the system put more hot air out in the front where I am... doesn't do me any good in the back seat area... LOL.

Maybe give that a try and see if it changes anything for you?

 

[Casper]

I would refrain from calling it a blast... since in my case the cold pools more than moves. I don't consider it a problem.... just something worth noting.

Another thing I'm considering... if the DEF tank is positioned under the drivers, seat which it may very well be, sitting over 50 pounds of ice could cause a pool of cold air. Especially if there is no insulation. I found a diagram of the Ram diesel and that is where it appears to be. And since the Ram and JGC are kissing cousins It could be there on the JGC. Just speculation on my part..

 

[Killroy]

Along the lines of brrr, this morning i noticed that the heater doesnt do a very good job at regulating the temperature. Instead of gently adjusting the temp it goes hot hot hot until it reaches the temp or exceeds it then goes cold cold cold until its below it and repeats this process to maintain the temp in the vehicle. How annoying!!

 

[MDBones]

Along the lines of brrr, this morning i noticed that the heater doesnt do a very good job at regulating the temperature. Instead of gently adjusting the temp it goes hot hot hot until it reaches the temp or exceeds it then goes cold cold cold until its below it and repeats this process to maintain the temp in the vehicle. How annoying!!

I assume that's with the climate control set to auto? I'd report that to the dealer... that is not normal operation.