While the A/C is on, The Jeep randomly blows HOT air from the floor vents for 3-5 mins then stops

[Chocolate Thunder]

I got my Jeep back today after having this TSB performed. I have a 500 mile trip tomorrow so I’ll know by the end of the day if the AC is performing normally or not.

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[JeepCares]

I got my Jeep back today after having this TSB performed. I have a 500 mile trip tomorrow so I’ll know by the end of the day if the AC is performing normally or not.

Hi Chocolate Thunder,

Please be sure to keep us updated! If you are in need of any additional assistance regarding this, our team is just a private message away.

Mark
Jeep Social Care Specialist

 

[Flyslinger2]

I took an extended trip early September and the missus noticed the blast of hot air. We timed it. Yup. 15 minutes normal then open for almost a minute and then rinse repeat.

At my first 5K service I brought this issue up with the Service rep. and provided the document numbers. They came back and said I had the latest software already. It's now cool enough here that I don't use the A/C and the missus rarely rides with me (she can't stand the vehicle). Not sure what the next step is.

 

[Chocolate Thunder]

Hi Chocolate Thunder,

Please be sure to keep us updated! If you are in need of any additional assistance regarding this, our team is just a private message away.

Mark
Jeep Social Care Specialist

Thanks.

It seemed somewhat better, but it still blows warmer air every 15 minutes or so when using the AC set on recirculate. It doesn’t blow nearly as blazing hot as it did before, but when in recirc it blows warmer air every 15 min or so. More Texas summer than Satans breath now. It doesn’t do it when the AC is set to fresh air. And it stops immediately if I cycle the recirc button off and right back on.

Mark, thanks but I don’t think that there’s anything you can actually do to help. They performed the TSB. It just sucks and doesn’t fix the problem completely. There’s no point in getting you guys involved because they did all they know how to do.

 

[JeepCares]

Thanks.

It seemed somewhat better, but it still blows warmer air every 15 minutes or so when using the AC set on recirculate. It doesn’t blow nearly as blazing hot as it did before, but when in recirc it blows warmer air every 15 min or so. More Texas summer than Satans breath now. It doesn’t do it when the AC is set to fresh air. And it stops immediately if I cycle the recirc button off and right back on.

Mark, thanks but I don’t think that there’s anything you can actually do to help. They performed the TSB. It just sucks and doesn’t fix the problem completely. There’s no point in getting you guys involved because they did all they know how to do.

Thank you for the follow-up, Chocolate Thunder. Given your situation, I would be more than happy to escalate a case on your behalf to have your concerns formally documented. This will also give us the chance to connect you with a case specialist who can review your situation and connect with your dealer to ensure all avenues of assistance have been explored regarding your concern. Please follow up with me via PM if this would be of interest.

Mark
Jeep Cares

 

[Chocolate Thunder]

Thank you for the follow-up, Chocolate Thunder. Given your situation, I would be more than happy to escalate a case on your behalf to have your concerns formally documented. This will also give us the chance to connect you with a case specialist who can review your situation and connect with your dealer to ensure all avenues of assistance have been explored regarding your concern. Please follow up with me via PM if this would be of interest.

Mark
Jeep Cares

Sure. OK.

 

[JeepCares]

Sure. OK.

Hi Chocolate Thunder,

Please know that I have just sent you a private message regarding this. When you can, please take a moment to review my message and follow up with me there.

Mark
Jeep Cares

 

[Roket]

I got my Jeep back today after having this TSB performed. I have a 500 mile trip tomorrow so I’ll know by the end of the day if the AC is performing normally or not.

What did they do to prevent the hot air while A/C was on. thanks

 

[Chocolate Thunder]

What did they do to prevent the hot air while A/C was on. thanks

No idea. Supposedly a computer flash. It’s better, but still happens (not as severely) when in recirc mode. Not on fresh air.

 

[EDH_JL]

I don't usually have a passenger in my 2door, so I have not felt the hot air issue. I did experience bringing in heavy wildfire smoke even with recirculate on, and was pointed to this thread. An override would be nice when you REALLY don't want the outside air coming in.

 

[CarbonSteel]

I am glad that I found this thread--this has happened multiple times in my JLUR and I was scratching my head as to the reason. I have the A/C set on "manual" and low and it randomly blasts hot air from under the dash. Splitting the airflow between the regular dash vents and footwell vents seems to stop it, but that is not efficient for combating Texas heat.

My question is -- this TSB states it is for Jeeps built on or before December 28, 2018 (MDH 1228XX) equipped with Instrument Panel Parts Module (Sales Code X81). While I am not sure about the IPPM, my Jeep was definitely built after 12/28/2018.

Am I safe in assuming that it still applies?

 

[JeepCares]

I am glad that I found this thread--this has happened multiple times in my JLUR and I was scratching my head as to the reason. I have the A/C set on "manual" and low and it randomly blasts hot air from under the dash. Splitting the airflow between the regular dash vents and footwell vents seems to stop it, but that is not efficient for combating Texas heat.

My question is -- this TSB states it is for Jeeps built on or before December 28, 2018 (MDH 1228XX) equipped with Instrument Panel Parts Module (Sales Code X81). While I am not sure about the IPPM, my Jeep was definitely built after 12/28/2018.

Am I safe in assuming that it still applies?

Hi CarbonSteel,
If you would like to be send us a PM with your VIN, we would be happy to let you know if this TSB applies to your VIN.
Alex
Jeep Cares

 

[CarbonSteel]

Hi CarbonSteel,
If you would like to be send us a PM with your VIN, we would be happy to let you know if this TSB applies to your VIN.
Alex
Jeep Cares

PM inbound and if this TSB does not apply, then there is another issue because I definitely experience this problem in my Jeep.

 

[jespey]

We had this issue in our 2018 JL 2 Dr. Applied the TSB to no avail. Took it to a second dealer who also applied a “newer and better” computer flash, again to no avail. Traded in to a 2020 JLU Sport S, built 9/19, and guess what— Same issue! We never push the recirc button when running the a/c, so it happens whether or not we are in fresh air mode. Pushing the recirc button twice makes it go away, at least temporarily. Not sure what to do.

 

[JeepCares]

We had this issue in our 2018 JL 2 Dr. Applied the TSB to no avail. Took it to a second dealer who also applied a “newer and better” computer flash, again to no avail. Traded in to a 2020 JLU Sport S, built 9/19, and guess what— Same issue! We never push the recirc button when running the a/c, so it happens whether or not we are in fresh air mode. Pushing the recirc button twice makes it go away, at least temporarily. Not sure what to do.

Hi John,
If you decide to have your dealer look into this further, please send our team a private message. We'd be happy to have this documented and connect you with a Case Specialist. If this is something you would be interested in, please send our team a private message.
Alex
Jeep Cares

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