Prospective buyers beware

[Seansmd]

that’s the issue w ours (those having issues) Set to hi heat then change temp to 62, it’s still max heat. 62 should be in no terms or perception warm, much less max heat or hot.

Does NOt happen on my truck as I described the other day.

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[ShadowsPapa]

Trying to defog was in manual. It was about an hour after dark in and out of low areas about 65 degrees out with a very high dew point. When set at 67 and on auto I rarely have any issues and those issues are always about defogging.

It sounds like you have similar issues as we do here, in any vehicle for the most part.
You have moist warm air, cooler glass, the moisture in the air drops to the glass because the glass is cooler than the air and cools the saturated air, it can't hold as much when cooled by the glass. The solution is the get the glass hot - blast it with hot defrost. I note that when choosing defrost, things kick into high in the JT - my 1500 started out lower and I had to kick the fan up. This thing the fan is already above low speed when I hit defrost.
We have the situation here a lot, especially since I live near the river and have to follow it a ways to get to Des Moines unless I head north first - then I still go through areas with a lot of creeks and varying altitude. Cool air sinks into the low spot, warm air rises - HOWEVER, air loaded with moisture is actually lighter than the same temperature air that is dryer so that gets tossed in there, too.
Bottom line, to defog the outside of the glass takes heat - defrost on hot, set the temperature up.
Otherwise as long as the glass temperature remains at or lower than the warmer wet air, it will fog.

Yeah as far as the question - auto when not using defrost. So that question was answered.
We get into a lot of situations here where my JT is cold, say 30 degrees, but the air outside is in the upper 30s to near 40 and loaded with humidity. As quick as I start driving, the windshield is fogged up out there.

 

[ShadowsPapa]

Does NOt happen on my truck as I described the other day.

I need to do another test - but mine did respond when I manually set the temp down on the screen. It was already cooling the air that was blowing in even in auto mode as the cabin temp reached goal but when I pushed the temp down and went to manual, it responded - took a couple of seconds to feel that it was lower temp air coming out, but that is how it felt. One time does not a test make - so I'll try again, but so far.......
No testing today, mist, temps only in 30s, looking at possible freezing drizzle, not going to take it out on ice with these crazy highway tires just for an air temp test.

 

[danielspivey]

And the verdict from Jeep cares is....

 

[danielspivey]

And the verdict from Jeep cares is....

So basically whatever your dealer says, which as we all knows CAN vary dealer to dealer! Back to square one. Honestly, that probably was the worst answer they could have of given us

 

[futzin']

I didn't expect them to take a stance. To me, the Jeep tech's response is much more telling.

 

[ShadowsPapa]

So basically whatever your dealer says, which as we all knows CAN vary dealer to dealer! Back to square one. Honestly, that probably was the worst answer they could have of given us

Dang, I guess should have suspected that. They are more a go-between than technical adviser. Yeah, I'd not even want to ask my dealers here- one of whom didn't understand "hard reset" for the uconnect, kept telling "well we don't do updates" and I said NO, RESET and he said "you'll have to wait and they'll send you the update - I walked away.
Another didn't know where the aux switch wiring came out......... ugh.

 

[ShadowsPapa]

I didn't expect them to take a stance. To me, the Jeep tech's response is much more telling.

Which will be all over the place depending on who you ask. Don't bother with a sales person, and don't bother with the service writers, and even in the back where they actually get dirty - I've found them shrugging at certain questions. Stuff I almost know more about than they do. THAT is scary.

 

[futzin']

To me, the Jeep tech's response is much more telling.

Referring to a post (can't find it now) where someone asked a Jeep tech about it. But yes, I agree with you.

 

[danielspivey]

Which will be all over the place depending on who you ask. Don't bother with a sales person, and don't bother with the service writers, and even in the back where they actually get dirty - I've found them shrugging at certain questions. Stuff I almost know more about than they do. THAT is scary.

we probably know more about these Jeeps than they do. I wonder how much they disagree between themselves ? Lol

 

[Gladiation]

These Gladiators have a known HVAC system problem that is still ongoing. Visit the thread within this forum. Looking back, I would not have purchased this gladiator if desired cabin temperature cannot be achieved.

Only issue I have noticed is sometimes it randomly blows cold air on the passenger floorboard and my wife complains

 

[Gatorized]

And the verdict from Jeep cares is....

Sad that the response is so vaque- the dealers have an “instruction manual” (for lack of a better term) that I looked through on the sales floor that explains how all the systems work so they can talk intelligently to the customer. Why @JeepCares can’t quote from this reference is beyond me. Perhaps all dealers don’t use this manual or the service department doesn’t have a copy, which would explain the poor responses provided when taking these issues to the dealer.

My observations with manual (fan set to low, temp set to 72):
With an oven thermometer (similar to this - https://techinstrument.com/products...MI8c-ottrr5gIViJ6zCh2VVQHkEAQYESABEgLVUPD_BwE) placed in the drivers right hand dash vent, i observed temp at the vent ramp up to 185-190 degree heat in parallel with engine warming up as reflected on the engine temp gauge on the dash display. When the engine temp gauge reached operating temp, the dash vent temp maxed out .
I didn’t have a thermometer to check cabin temp, but 20 minutes into my trip when cabin temp felt comfortable, I noticed that the vent temp had dropped to 85-90 degrees. Remarkably close to body temp... the air felt cooler than I expected at 90 degrees, but I suspect that is due to the low humidity this time of year.

 

[danielspivey]

Sad that the response is so vaque- the dealers have an “instruction manual” (for lack of a better term) that I looked through on the sales floor that explains how all the systems work so they can talk intelligently to the customer. Why @JeepCares can’t quote from this reference is beyond me. Perhaps all dealers don’t use this manual or the service department doesn’t have a copy, which would explain the poor responses provided when taking these issues to the dealer.

My observations with manual (fan set to low, temp set to 72):
With an oven thermometer (similar to this - https://techinstrument.com/products...MI8c-ottrr5gIViJ6zCh2VVQHkEAQYESABEgLVUPD_BwE) placed in the drivers right hand dash vent, i observed temp at the vent ramp up to 185-190 degree heat in parallel with engine warming up as reflected on the engine temp gauge on the dash display. When the engine temp gauge reached operating temp, the dash vent temp maxed out .
I didn’t have a thermometer to check cabin temp, but 20 minutes into my trip when cabin temp felt comfortable, I noticed that the vent temp had dropped to 85-90 degrees. Remarkably close to body temp... the air felt cooler than I expected at 90 degrees, but I suspect that is due to the low humidity this time of year.

Interesting testing, thanks for your input. I have always set my temperatures in my vehicles to 72 after I get comfortable. 72 feels “neutral” to me. Why yours is set to 72 in manual mode And is blowing full heat at first and then to almost 90 after doesn’t make sense.

Did you recall how the dealers manual described the manual mode?

 

[Gatorized]

Interesting testing, thanks for your input. I have always set my temperatures in my vehicles to 72 after I get comfortable. 72 feels “neutral” to me. Why yours is set to 72 in manual mode And is blowing full heat at first and then to almost 90 after doesn’t make sense.

Makes perfect sense when combined with HVAC operation details provided already. Manual mode means you tell the system the fan speed and temperature. The system needs to get to the temp before it can maintain it. You don’t want to wait all day to be comfortable in the cabin so the system blasts full heat until the threshold is reached and then ramps done the temp to maintain.

.
Did you recall how the dealers manual described the manual mode?

No. I only just flipped through the manual and only mention the manual because it indicates there is a written record of FCA information that @JeepCares is apparently not aware of so is not sharing what the dealer should be sharing with the customer. All dealers are not equal and the customer has no idea where on the knowledge spectrum each dealer is. the written record allows everyone to be equally knowledgeable so the customer can determine if the dealer is helping or just brushing off.
Maybe the service department doesn’t have this manual,, or maybe the manual doesn’t include HVAC operation. but my salesman had it on their desk. So perhaps the first stop for those with an issue should be talk with their salesman and ask to see how HVAC operation is described. A knowledgeable customer is a happy customer... a happy customer is good for sales.
@B345T - are you familiar with the manual I am referring to? I think it may have had info on several vehicles, but don’t remember if it was just Jeep. I thought at the time it would be nice to have a copy of the JT section for those questions that come up after you leave the lot, probably covered with the salesman, but just don’t remember due to the info overload .

 

[danielspivey]

Makes perfect sense when combined with HVAC operation details provided already. Manual mode means you tell the system the fan speed and temperature. The system needs to get to the temp before it can maintain it. You don’t want to wait all day to be comfortable in the cabin so the system blasts full heat until the threshold is reached and then ramps done the temp to maintain.

This would make sense in auto, auto is about maintaining a temperature, but not in manual mode.

At start up, a system should never be overly hot in manual mode, it should only be overly cool because the heating system hasn’t had a chance to warm up. Blowing above 72 heat, when set to 72 should never happen in manual mode.

Per the manual, that’s what should happen in auto. Set the temp to the desired cabin temp, the system then adjusts the temp, blower speed and air output location to maintain that set temperature.[/QUOTE]

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