One problem related to defogger has been reported for the 1997 Chevrolet Venture. The most recently reported issues are listed below.
Afteer owning this vehicle for barely a month, we began noticing a stench that nearest I could describe it would be that of a dead mouse. However, the smell only noticable if you did not have the air conditioner on. To run the heater, we would put it on ac and then turn the heat up to avoid the smell. When we reported this to the dealer, we were informed it was because we smoked in the vehicle. Howver, we have smoked for years and there is a very distinct stale odour from cigarettes which is in no way similar to the smell we noticed. Now we only really notice this smell after we have the car serviced.