What should be done regarding the wipers during a pre-trip inspection?

During a pre-trip inspection, it is crucial to ensure that the windshield wipers are functioning properly and are in good condition. This is essential for maintaining visibility while driving, especially in adverse weather conditions such as rain or snow. Worn or malfunctioning wipers can lead to reduced visibility, which increases the risk of accidents. Therefore, the focus on their proper functioning includes checking for issues such as frayed rubber blades, any obstructions in movement, or signs of wear that could impair their effectiveness.

While having a timer system (the first option) can be a feature for some vehicles, it is not a standard requirement for wiper function. Similarly, verifying the wipers are the latest model (the third option) is unnecessary since the effectiveness of the wipers is not determined by their model, but rather their condition and performance. Checking for windshield washer fluid (the fourth option) is important, but it is not solely related to the wipers themselves; it is more about the overall system for maintaining visibility. Therefore, ensuring the wipers are functioning correctly and in good condition is the most critical aspect of their pre-trip inspection.