Hi Everyone:
I was driving to work yesterday with both windows down and then felt the heat come from underneath of the dashboard (on the passenger side only) so I made sure the climate unit control on cold + the fan was turnoff and still no luck but when I roll up my windows the heat went away. Had anybody has this problem or experienced this before? Any input or advices appreciate. Thanks

 

You probably have a tear/leak in the heater hose which runs behind the carpet under the dash. Remove the front carpet panels and have a look. Easy to fix by replacing with a new piece of hose.