At present, many wipers are hidden in order to be beautiful and anti-theft. A large part of the wiper arm is hidden under the engine hood, so it is impossible to lift the wiper arm to replace the wiper or clean it in normal mode.
Such models are designed with the "maintenance mode" of the wiper. When the vehicle power is turned off and the key is pulled out and the wiper lever is moved, the wiper will swing to the vertical position. At this time, the wiper arm is not covered completely, which is convenient to lift the wiper arm to replace the wiper.
If it is a one button start model, press the ignition key 3 times without stepping on the brake or clutch to ensure that the car does not ignite. The first part is powered on, the second part is all on, and the third part is off. After power supply, toggle the wiper rod to spray water. The wiper is perpendicular to the glass. This is the wiper service mode.
Many friends don't worry about it. In fact, not all models are like this. If your car is the same as the figure below, it can be replaced directly.