One problem related to defogger has been reported for the 2000 Saturn LS. The most recently reported issues are listed below.
Consumer states a/c experienced a funny smell, dealer found corobeal infestation in evap vents, a/c made loud noise when starting vehicle, there is a rumbling sound when recycle button is on and the fan is off, faulty ventilation is causing air to come from the bottom of the front passenger seat.