If a vehicle has two wipers on the windshield, do both have to function properly?

Both windshield wipers on a vehicle are crucial for ensuring optimal visibility for the driver, especially during inclement weather conditions such as rain or snow. When both wipers function properly, they provide a more comprehensive sweep of the windshield, removing water, debris, and other obstructions effectively. This dual-wiper system is designed for safety; having both wipers operational maximizes driver visibility, which is critical for making safe driving decisions.

In many jurisdictions, regulations may stipulate that all components of the vehicle that affect safety must be operational, including both windshield wipers. Thus, both wipers working is essential for compliance with safety standards, aiming to prevent accidents caused by reduced visibility.

The other options suggest less stringent requirements, but they overlook the importance of full wiper functionality in maintaining clear visibility under varying driving conditions. One functioning wiper, specific weather conditions, or merely ensuring the driver can see may not be adequate to guarantee safe driving during adverse weather scenarios.