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Bumping an old thread... Hi JOS, I seem to be having the same issue with my 2017 GT Premium. With the AC off and fan on (even at the lowest temp of "Lo"), it blows warm air. Doesn't matter if I change it to inner recirculation, it still blows warm air. Do you happen to have the part number...

This is really detailed and helpful, thanks a ton! Mississauga is in Ontario (province in Canada) and pretty much all of August has been very humid. The car does get parked inside the garage (which is noticeably much hotter) but I have never left the windows open while parked - maybe I should...

Thank you for your response! I thought the same, but condensation on my vents builds up even on non-humid days. Do you think the AC evaporator itself needs cleaning?

Thank you for your response! I admit, I have always turned off the AC after shutting off the car, but as of 2 weeks ago, I turn off the AC when I am about 3 minutes away from home. I changed the cabin air filter 2 weeks ago when I first started noticing the smell and sweaty vents. But even...

Folks, I have a 2017 Mustang GT and since the last 2 weeks, I have noticed 2 new issues with the AC: Issues: 1) water/condensation build up on car vents after turning off the AC (happens at any temperature and with all 5 vents: 2 side vents + 3 center) - the AC blows solid cold air through all...

UPDATE # 2: I replaced the heat/cool seat module after my driver's heated seat stopped working, I don't believe the issue has been resolved completely. The bottom part of the driver's seat (under the thighs) is working fine, but I am not feeling any heat (or the fan) in the top/back side of...

I am not really sure if this could be the culprit but this issue happened a couple of hours after I used the cigarette adapter to power the factory air compressor (tire inflator) for a few minutes. It could be a coincidence or related.

Everything was working perfectly fine before warranty expired. I have owned my car for just over 4 years (I am the first owner) and didn't experience any issues with the heated/cooled seats.

UPDATE: It was the module. Installed it today and works perfectly. I feel that the fans are even more powerful/louder than before. Tested both sides heat + cool simultaneously and no issues either. I am surprised and disappointed how widespread this issue is. Unfortunately this happened a year...

Gotcha, I don't believe mine resets after 30-60 seconds as I have tried it with minutes apart. Fingers crossed it's the module! (it's the easiest to replace DIY). Are you sure you had the heat/cooling module replaced or the fan blower module/assembly?

Will update once I install the new module. It's expected to arrive early next week. I am having the exact same symptoms as yours (driver's heated seat) except for the 30-60 second wait. For me, once the relay clicks the second time, this cycle can't be repeated unless I restart the engine. Does...

Agree, rather play it safe!

Awesome thanks! That's more inspiring as I have enough skill to replace the module, but not enough to rip apart a seat 😉 At the moment, it's just the driver's heat that isn't functional. But what also makes me lean towards the module is the inability to switch to cooling after heat stops...

Makes sense but with that same logic, can't other parts, especially the module, be blamed too (just thinking out loud)? As all Mustangs seat heating/cooling must have functioned properly from the factory. It must have gone faulty at some point during the ownership. Unfortunately my OBD2 reader...

Bumping an old thread instead of creating a new one... I have a 2017 Mustang GT premium (build date is April 2017) My driver's heated seat is not working anymore. Driver's cooled seats and passenger heat/cool seats work fine. I started experiencing this issue a few days ago. Maybe it's a...