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What is the purpose of the rotating knob in the middle of the wiper?

1 Answers

EllianaLynn

07/29/25 3:08pm

The function of this knob varies depending on the vehicle model. It is generally used to control the frequency of the wiper's operation. For specific functions, please refer to the car's user manual. Below is some related information about wipers: 1. Definition: Wipers, also known as windshield wipers, are generally categorized into vacuum wipers, electric wipers, and wipers with electronic control units. 2. Function: Wipers can remove dust and water droplets from the windshield. They usually have three settings: low speed, high speed, and intermittent, which help improve the driver's visibility and enhance driving safety.

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