One of the features of the Chevrolet Lacetti braking system is that the car is equipped with two braking structures: the service braking system (front and rear disc brakes on the rear) and the parking drum. The handbrake has separate brake pads.
According to the recall of Chevrolet's Chevrolet Lacetti, the parking braking system does not require maintenance. If the handbrake stopped, it means that the cable or pad of the Lachetti handbrake needs to be replaced.
