Windshield wiper arms should be adjusted in which position?

The windshield wiper arms should be adjusted in the down position when not in use or during maintenance. This position ensures that the wiper blades rest flat against the windshield, which helps maintain an effective seal and protects the blades from UV damage and debris. Additionally, having the wiper arms in the down position allows for proper functioning during inclement weather, as the blades can effectively clear the windshield without obstruction.

In this position, the wiper system is less likely to inadvertently engage, reducing the risk of damage to the blades or the windshield itself. This is particularly important during repairs or adjustments, as it provides a safer working environment and avoids unnecessary wear on the components of the wiper system. Adjusting the wipers in any other position could lead to potential operational issues or cause damage, as the wipers may have a tendency to lift or interfere with the vehicle's aerodynamics.