What is the purpose of the vehicle’s defrost setting?

The purpose of the vehicle's defrost setting is to clear moisture from the windshield for improved visibility. When there is condensation or frost on the interior or exterior of the windshield, the defrost setting directs warm air to the glass. This helps to evaporate the moisture or melt the ice, ensuring that the driver has a clear line of sight while operating the vehicle. Visibility is crucial for safe driving, as any obstruction can increase the risk of accidents.

While warming the cabin might be a secondary benefit, the primary function of the defrost setting is specifically aimed at enhancing visibility, making it essential for safe driving during adverse weather conditions.