If the parking brake is operating correctly, what should it accomplish?

The primary function of the parking brake is to securely hold the vehicle in place when it is parked, preventing it from rolling or moving unintentionally. This is particularly important on inclines or in any situation where the vehicle could slide or roll away. A properly functioning parking brake should provide sufficient resistance to keep the vehicle stationary, ensuring safety when parked, especially in any location that is not level.

Effective use of the parking brake involves engaging it when the vehicle is stationary, making it a crucial safety feature in addition to the standard braking system. Using the parking brake in this manner mitigates the risk of accidents caused by a vehicle unexpectedly rolling away.