Occasionally the fan for either the AC or the heater lowers, or stops entirely. Mostly it stops. Often when hitting a minor bump in the road - but occasionally just when idling. I've previously had radiator issues so I thought it might might have been related but under further investigation it appears the fan switch may be shorting out or having a loos connection. I've already checked the fuses and they seem to be fine. My next steps are pull apart the controls on the dash and make sure everything is plugged in tightly. If it is and the problem persists, I intend on buying a new fan switch and installing it to see if this fixes the issue.