Got my Grenadier recently and from the get go my AC buzzes on highest fan setting. If I turn it down a bit it goes away, if I turn it back up it starts out okay but eventually starts buzzing again.
Normal shouldn’t be normal. Is it a high frequency shrill sound on max fan speed 4 or window demister?
Have you tried adjusting the vents to see if its one of the vents doing it, or does it sound like the fan? The HVAC in this thing is apparently a bit wonkey with sticking or loose baffles. I only get a slight wind whistle noise on speed 2 when set on dash only, while moving. it must be a outdoor vent seal. One wouldn't know it with the radio on 1. The only issue being, I like to drive in silence.
