Buick 2008 Lucerne Owner's Manual page 359

CAUTION:
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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 5-113 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 5-113 for the wheel nut
torque specification.
13. Tighten the wheel nuts
firmly in a crisscross
sequence as shown.
5-91