How do you replace a broken wheel stud on Pontiac grandprix?

To replace a broken wheel stud on a Pontiac Grand Prix, first, safely lift the vehicle and remove the wheel. Next, remove the brake caliper and rotor to access the wheel hub. Use a hammer to drive out the broken stud, then insert the new stud from behind the hub and secure it by tightening a nut over it to pull it into place. Finally, reassemble the rotor, caliper, and wheel, and ensure everything is properly torqued before lowering the vehicle.