In most four-wheel drive (4WD) vehicles, when switching to 4WD mode, it is necessary to ensure the vehicle is completely stopped, shifted into neutral (N gear), and the parking brake is applied to ensure operational safety. The specific operation method varies by vehicle model; common methods include mode switching via centre console buttons, transfer case levers, or front axle engagement switches. For example, vehicles equipped with a transfer case lever need to smoothly move the lever from 2WD to 4WD position, while models with electronic control systems require selecting the corresponding mode through the instrument panel or centre console menu. Some models also require switching to high-range 4WD (4H) first before shifting to low-range 4WD (4L), and during the switching process, the indicator light status on the instrument panel should be monitored to confirm whether the mode is successfully activated. Special attention should be paid to avoid prolonged use of 4WD mode on paved roads or during high-speed driving to prevent increased fuel consumption or drivetrain wear. If the indicator light continues to flash after operation, the vehicle must be stopped again and checked to ensure the transmission is in neutral.
