Inoperative defrosters under inclement weather conditions could cause impaired visibility which has the potential to result in personal injury and/or vehicle and property damage.
On certain sport utility vehicles, under certain conditions, the climate control module (ccm) may receive a 'shut-down signal' from the engine control module (ECM) after ignition key insertion. If this condition occurs, the climate control functions will not be available (including the defroster) during that driving cycle.
