To ensure **good visibility** while driving, it is important to consider the proper use of **rearview mirrors**. Rearview mirrors are mirrors that help the driver see what is happening on the sides and behind the vehicle.

- In vehicles such as cars, vans, and trucks that can carry up to 3,500 kilos, it is mandatory to have an exterior mirror on the left side and an interior mirror in the central part of the vehicle. Although it is not mandatory, it is also recommended to have an exterior mirror on the right side.

- If the **luggage** or any other load reduces visibility through the interior rearview mirror, it is necessary to install two exterior mirrors, one on each side of the vehicle. This ensures that the driver can continue to see adequately what is happening around the vehicle, even if visibility through the interior rearview mirror is obstructed.

- Additionally, when the two exterior mirrors are installed, the use of blinds on the rear windows is allowed, which can be useful for sun protection without compromising visibility.

Therefore, the installation of two exterior mirrors, one on each side, is the appropriate solution when visibility through the interior rearview mirror is compromised.