Checking the **lighting system** is essential as part of the **preventive maintenance of the vehicle**. This system includes all the vehicle's lights, which are crucial for safety when driving.

- The lights allow you to **see and be seen** by other drivers and pedestrians, especially in low light conditions or at night. This helps to identify hazards and react in time.

- It is important to ensure that the lights work correctly and to change the bulbs when their intensity decreases. A faulty lighting system can compromise safety by not adequately illuminating the road or by dazzling other drivers if used incorrectly.

- Additionally, if any light fails while driving, it is necessary to reduce speed and use the lights that still work until the system can be repaired. This underscores the importance of keeping the lighting system in good condition to avoid dangerous situations.

Therefore, checking the lighting system is a fundamental part of the vehicle's preventive maintenance to ensure road safety.