Cadillac 2010 STS Owner's Manual page 460

Wheel nuts that are improperly or incorrectly
tightened can cause the wheels to become loose
or come off. The wheel nuts should be tightened
with a torque wrench to the proper torque
specification after replacing. Follow the torque
specification supplied by the aftermarket
manufacturer when using accessory locking wheel
nuts. See
for original equipment wheel nut
torque specifications.
14. Lower the vehicle by turning the wheel wrench
counterclockwise. Lower the jack completely.
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