2008 Pontiac G8 Owner's Manual - Page 261

Vehicle Service and Care 14. Tighten the wheel nuts firmly in a crisscross sequence, as shown. 9-77 { CAUTION Incorrect or improperly tightened wheel nuts can cause the wheel to come loose and even come off. This could lead to a crash. If you have to replace them, be sure to get new original equipment wheel nuts. Stop somewhere as soon as you can and have the nuts tightened with a torque wrench to the proper torque specification. See Capacities and Specifications on page 10-2 for wheel nut torque specification. Notice: Improperly tightened wheel nuts can lead to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper sequence and to the proper torque specification. See Capacities and Specifications on page 10-2 for the wheel nut torque specification.