Why is it important to use the parking brake when parking?

Using the parking brake when parking is essential to avoid rolling away. When a vehicle is on an incline or even on a flat surface, relying solely on the vehicle's transmission to hold it in place is not sufficient. The parking brake provides an additional layer of security by engaging the brake mechanism independently of the vehicle's main braking system. This helps to ensure that the vehicle remains stationary, even if the transmission fails or if there is any accidental movement.

In situations where a vehicle is parked on a hill, the parking brake is particularly critical. Without it, gravity may cause the vehicle to roll downhill, potentially leading to accidents or damage to property. Thus, a reliable parking brake minimizes the risk of unintended movement and enhances overall safety when a vehicle is parked.