[wghummel]

I'm writing this from the passenger seat of my car.

I turned on the HVAC controls to the following:

First knob: one notch from max air flow / recirculation was OFF
Second knob: turned all the way to the left (coldest temp) / A/C was ON
Third knob: set to blow on floor only


About five minutes later while at a stop sign, I noticed a faint smoke/vapor rising from the first knob (the fan speed one). :icon_evil:

I've turned the HVAC off since then and have the windows down.

What could this faint vapor/smoke be?

 

[19johned53]

Probably the crappy circuit board/connector on the back of the module.

Had mine do this 2 years ago. Smoked pretty good for about a minute. Under warranty, and they found that the back of the module was melted/distorted from heat. Fortunately no wiring/wiring connector damage.

New ones been fine, but there's been several members comment about having this issue. Not many, but a handful.

Get it to the dealer to inspect/repair.

 

[aldo90731]

If it had been the vents, I'd venture say you were seeing cold air come out, just like when you open a freezer. Any A/C system will do that when set to max.

But through the controls knobs...hmmm... I'd carry a fire extinguisher if I were you

 

[Yellow Jacket 2012]

As stated above a few members have had to replace the hvac controls due to melting, fortunately it doesn't result in a fire. Hope that's all it is and you're up and running again shortly.