What should the driver do first before entering the cab?

[LaBrooklyn]

Before entering the cab, the driver should first observe the surrounding conditions of the vehicle. The precautions for the lighting test in Subject 3 are as follows: 1. During the test, concentrate to avoid missing or mishearing the instructions. 2. The voice prompts include: passing under a bridge or a crosswalk at night; passing a sharp curve or a slope at night; passing an intersection without traffic lights at night. In these three situations, the driver should alternately use the high and low beams (flashing more than twice). 3. During the test, the use of lights is prompted by voice instructions, and the operation must be completed within 5 seconds after the voice prompt ends. Do not act too slowly, but also do not act before the prompt is finished.