How do you unlock the brakes in a 1976 Chevrolet Monte Carlo landau?

To unlock the brakes in a 1976 Chevrolet Monte Carlo Landau, locate the brake release lever, typically found near the driver's side under the dashboard. Pull or press the lever to disengage the parking brake. If the brake is stuck, check if the cable is frozen or if there's any obstruction. Additionally, ensure the car is on a level surface and try gently rocking it back and forth to free the brakes.