Not much. The parking brake operates on the rear wheels only and places the brake shoes (or brake pads on cars with rear disc brakes) against the brake drums (rotors) so that the car will not coast away on its own.
In any case, if you drive with the parking brake on, the shoes or pads will wear a tiny bit until they are no longer in contact with the drums/rotors. you will lose a 32'nd inch or so of brake pad, and that's it.
Rear brake will drag and overheat Fuel mileage will decrease Brakes will "fade" and not be as effective when trying to stop Unnessary Increased wear on brake linings
drive with it off and have the parking brake inspected for damage.
Like any vehicle, the parking brake is intended to be a parking brake. depending on the condition of your brakes, your rear wheels may lock up or just turn with limited speed. no major damage can be done by this practice in the short term, but large amounts of driving with the parking brake engaged will wear away the lining of your brake pads.
Leaving the parking brake on while you drive
Apply the parking brake.
Put your foot on the brake, pu the car into drive and the parking break should disengage. if not, push on the parking break while holding the break in drive.
It is possible the hand/foot parking brake may be partially engaged. With the foot parking brake, you may have to pull on the release handle while simultaneously with your foot, pull back on the parking brake.
CAN - usually, yes. Most parking brakes are a lot weaker than the driving brakes, as they are only meant to stop the car from rolling away by itself. To see what happens, look at the related question.
Parking brake is on, transmission is not working, drive shaft is broken, tires are frozen to the ground.
No Auto put in drive
Chevrolet Blazer parking brake can be adjusted with the adjustment screw on the parking brake pad. The parking brake can also be adjusted with the parking brake cable.
how do you adjust parking brake
To release the parking brake, hold the regular brake pedal down with your right foot. Push down momentarily on the parking brake pedal with your left foot until you feel the pedal release. If the parking brake is not released when you began drive, the brake system warning light comes on and s chime sounds as a warning that the parking brake is still on.Manual Book page 2-28