What do L4 and H4 mean?

[CamilleFitz]

L4 and H4 refer to Low-range 4WD and High-range 4WD respectively. Below are the relevant introductions about L4 and H4: 1. Vehicles equipped with part-time four-wheel drive systems have both high-range and low-range four-wheel drive options. 2. The difference between high-range and low-range four-wheel drive lies in the change of the vehicle's gear ratio. Different four-wheel drive modes are used when driving on different road sections. 3. For vehicles with part-time four-wheel drive systems, during driving, power can be distributed to all four wheels through the transfer case. During operation, drivers can switch between 2H, 4H, and 4L modes via the four-wheel drive lever or electronic buttons, thereby enhancing the vehicle's power performance. 4. 2H stands for two-wheel drive, 4H represents high-range four-wheel drive, and 4L denotes low-range four-wheel drive. 5. After switching to high-range four-wheel drive, the wheels can obtain better traction promptly. Compared to 4L, 4H has broader applications. When driving uphill, using low-range four-wheel drive provides better traction for the vehicle because the engine delivers greater torque, enabling it to overcome more obstacles.