Is the 4WD lock on or off?

The four-wheel drive lock is turned off when pressed, which means that the center differential is locked. That is to say, the button of the four-wheel lock is not a switch in a simple sense, but a lock switch of the center differential. After pressing it, it is equivalent to Open the differential lock. When the car is in a situation where it needs to get out of trouble, the front and rear axles can distribute the driving force, so as to prevent the wheels of one axle from slipping and cause all the power to be transferred to the slipping axle.

　　

The main function of turning on the four-wheel drive lock is equivalent to turning on the four-wheel drive mode, turning and switching the four-wheel drive mode on ice, sand, and mud. The four-wheel drive lock is mainly used in the escape mode during the driving process of the vehicle. It is generally used when driving in complex road conditions. It can bring a maximum of 50% of the driving force to the rear wheels. When the vehicle is in the mode that needs to get out of trouble, if the lock of the central differential is opened, the vehicle's out of trouble mode can be improved. Of course, under normal circumstances, there is no need to turn on this switch, but it can come in handy when driving on steep mountain roads, slippery roads or large puddles.