Incorrect wheel nuts or improperly tightened; wheel nuts can cause the wheel to become loose; and even come off. This could lead to an accident.- Page 247

5-30

9. Lower the vehicle by turning the jack handle

counterclockwise. Lower the jack completely.

10. Tighten the wheel

nuts firmly in a
crisscross sequence
as shown.

CAUTION:

Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become loose
and even come off. This could lead to an accident.
Be sure to use the correct wheel nuts. If you have
to replace them, be sure to get new GM original
equipment wheel nuts.

Stop somewhere as soon as you can and 
have the nuts tightened with a torque wrench 
to 100 lb

-

ft (140 N·m).