A sensor is installed to monitor the fluid level in the tank. When the level falls below the permissible level (MIN mark), the parking brake and low fluid level indicator lights up in the instrument cluster. If there is no fluid leakage from the system, its level in the tank decreases mainly as a result of wear of the brake pads of the wheels.
Even if there is a sensor, we recommend that you visually check the level of the working fluid in the tank before leaving, since during operation, a malfunction may occur, both of the sensor itself and of the indicator in the instrument cluster or their electrical circuits.

The tank has MIN and MAX marks, between which the working fluid level should be.
Do not allow the fluid level to drop below the MIN mark.
To add working fluid to the tank, unscrew its cap counterclockwise..

…and remove the lid from the tank.
Add DOT-4 type fluid to the tank up to the MAX mark and put the tank cap back in place.
Working fluid that gets on the car's paintwork, plastic parts and wiring can cause damage. Remove it immediately with a clean rag.
If the level of the working fluid in the tank is constantly decreasing, then there is most likely a leak in the system. In this case, it is necessary to check the tightness of the hydraulic drives of the brake system or clutch and eliminate the malfunction.
(The text of the article was obtained from the website: «CHEVYMAN.RU»)
