It is important to use the **rearview mirrors** regularly while driving, even if you do not plan to perform any maneuvers. These mirrors allow you to see what is happening on the sides and behind your vehicle, which is essential for **preventive driving**.

- **Looking to the sides**: Although it takes us longer to see what is happening on the sides than in front, the rearview mirrors help us stay informed about the surroundings. It is crucial to check them constantly to be aware of any changes in traffic or the presence of other vehicles.

- **Blind spots**: Despite the usefulness of the rearview mirrors, there are always areas that cannot be seen, known as **blind spots**. These are dangerous because you cannot monitor what is happening in those spaces. Therefore, it is advisable to turn your head and look out the window to ensure there are no vehicles in those spots before changing lanes.


- **Rules for motorcycles**: Motorcycles must also use rearview mirrors. If they are traveling at less than 100 km/h, they must have one on the left side. If they are going over 100 km/h, they must have two, one on each side. This reinforces the importance of rearview mirrors for maintaining road safety.

In summary, the regular use of rearview mirrors is fundamental for safe driving, as it helps you stay aware of your surroundings and prevent accidents, even if you are not performing maneuvers.